initial commit of libmad

lib/libmad/CHANGES

@@ -0,0 +1,338 @@
+
+ libmad - MPEG audio decoder library
+ Copyright (C) 2000-2004 Underbit Technologies, Inc.
+
+ $Id: CHANGES,v 1.14 2004/02/17 02:02:03 rob Exp $
+
+===============================================================================
+
+Version 0.15.1 (beta)
+
+  * Updated to autoconf 2.59, automake 1.8.2, libtool 1.5.2.
+
+  * Replaced Layer III IMDCT routine with one based on a faster algorithm,
+    improving both speed and accuracy.
+
+  * Improved portability of the Huffman table initialization.
+
+  * Fixed a problem that could result in an assertion failure in layer3.c
+    due to an invalid Layer III free format bitrate.
+
+  * Improved the robustness of Layer II bitrate/mode combinations, and added
+    a new MAD_ERROR_BADMODE error enum. The allowability of low-bitrate
+    stereo streams is influenced by the --enable-strict-iso option to
+    `configure'.
+
+Version 0.15.0 (beta)
+
+  * Updated to autoconf 2.57, automake 1.7.5, libtool 1.4.3.
+
+  * Added new mad_f_div() API routine.
+
+  * Added a 64th entry to the Layer I/Layer II scalefactor table, for better
+    compatibility with existing streams. The --enable-strict-iso option to
+    `configure' can be used to disable use of this entry.
+
+  * Modified the header decoding routine to allow the reserved emphasis
+    value, for better compatibility with existing streams. The
+    --enable-strict-iso option to `configure' can be used to restore the
+    previous behavior of reporting this value as an error.
+
+  * Added new MAD_EMPHASIS_RESERVED enumeration constant.
+
+  * Fixed a bug in the ARM version of mad_f_scale64() discovered by Andre
+    McCurdy.
+
+  * Rewrote PowerPC assembly for minor gains.
+
+  * Modified mad_timer_fraction() to avoid the possibility of division by
+    zero when 0 is passed as the second argument.
+
+  * Fixed a non-fatal problem caused by attempting to designate ancillary
+    bits in Layer III after a decoding error.
+
+  * Changed to build a shared library by default.
+
+  * Changed to use native Cygwin build by default; give --host=mingw32 to
+    `configure' to use MinGW (and avoid a dependency on the Cygwin DLL).
+
+Version 0.14.2 (beta)
+
+  * Changed Cygwin builds to use MinGW; resulting Win32 executables no
+    longer have a dependency on Cygwin DLLs.
+
+  * Added a new mad_stream_errorstr() API function to libmad for retrieving
+    a string description of the current error condition.
+
+Version 0.14.1 (beta)
+
+  * Updated config.guess and config.sub to latest upstream versions.
+
+  * Enabled libtool versioning rather than release numbering.
+
+  * Improved the documentation in minimad.c.
+
+  * Several other small fixes.
+
+Version 0.14.0 (beta)
+
+  * Added a 64-bit FPM negation operation to improve performance of subband
+    synthesis on some platforms.
+
+  * Improved MSVC++ portability and added MSVC++ project files.
+
+  * Added rounding to Layer III requantization for slightly better accuracy.
+
+Version 0.13.0 (beta)
+
+  * Ancillary data is now properly extracted from Layer III streams.
+
+  * Rewrote the Layer III joint stereo decoding routine to correct a major
+    MPEG-2 problem and a minor MPEG-1 problem decoding intensity stereo.
+
+  * Eliminated the dependency on sign-extending right shifts for Layer I and
+    Layer II.
+
+  * Renamed `private' field to `private_bits' for better C++ compatibility.
+
+  * Gratuitously renamed `sfreq' field to `samplerate' and
+    MAD_ERROR_BADSAMPLEFREQ constant to MAD_ERROR_BADSAMPLERATE.
+
+  * Added `samplerate' and `channels' fields to synth.pcm struct to allow
+    these to be different from the decoded frame, and for simpler access.
+
+  * Added new mad_stream_options() and mad_decoder_options() API entries for
+    special runtime decoding options.
+
+  * Added new MAD_OPTION_IGNORECRC and MAD_OPTION_HALFSAMPLERATE options.
+
+  * Added new MAD_FLAG_FREEFORMAT indicator flag.
+
+  * Fixed some bugs in the async decoder.
+
+  * Added a new mad_timer_multiply() API routine.
+
+  * Eliminated `+' from asm constraints under Intel for better compatibility
+    with some compilers.
+
+  * Fixed a PIC-related problem in imdct_l_arm.S.
+
+  * Eliminated a static variable to make libmad thread-safe.
+
+Version 0.12.5 (beta)
+
+  * Modified Layer III requantization to occur during Huffman decoding for
+    significant performance gains.
+
+  * Optimized short block IMDCT by eliminating redundant calculations.
+
+  * Made several other Layer III performance improvements; added
+    ASO_INTERLEAVE1, ASO_INTERLEAVE2, and ASO_ZEROCHECK
+    architecture-specific options for best performance on various
+    architectures.
+
+  * Optimized synthesis DCT to store result values as soon as they are
+    calculated.
+
+Version 0.12.4 (beta)
+
+  * New PowerPC fixed-point assembly courtesy of David Blythe.
+
+  * Reorganized fixed-point assembly routines for easier maintenance and
+    better performance.
+
+  * Improved performance of subband synthesis through better indexing and
+    fewer local variables.
+
+  * Added alias reduction for the lower two subbands of mixed short blocks,
+    per a report of ambiguity with ISO/IEC 11172-3 and for uniformity with
+    most other implementations. Also improved alias reduction performance
+    using multiply/accumulate.
+
+  * Added --enable-strict-iso option to `configure' to override best
+    accepted practices such as the alias reduction for mixed short blocks.
+
+  * Improved performance of Layer III IMDCT by using longer
+    multiply/accumulate runs where possible.
+
+Version 0.12.3 (beta)
+
+  * Added MPEG 2.5 support.
+
+  * Added preliminary support for parameterizing the binary point position
+    in the fixed-point representation.
+
+  * Added multiply/accumulate optimization to the Layer III IMDCT for long
+    blocks.
+
+  * Fixed a bug in the handling of Layer III mixed_block_flag.
+
+  * Fixed a configure problem when multiple -O CFLAGS are present.
+
+Version 0.12.2 (beta)
+
+  * Rearranged the synthesis polyphase filterbank memory vector for better
+    locality of reference, and rewrote mad_synth_frame() to accommodate,
+    resulting in improved performance.
+
+  * Discovered a combination of compiler optimization flags that further
+    improve performance.
+
+  * Changed some array references in layer3.c to pointer derefs.
+
+Version 0.12.1 (beta)
+
+  * Resolved the intensity + MS joint stereo issue (a simple bug).
+    OPT_ISKLUGE is no longer considered to be a kluge.
+
+  * Fixed another, hopefully last main_data memory bug.
+
+  * Split part of struct mad_frame into struct mad_header for convenience
+    and size.
+
+Version 0.12.0 (alpha)
+
+  * Changed the build environment to use automake and libtool. A libmad
+    shared library can now be built using the --enable-shared option to
+    `configure'.
+
+  * Added another callback to MAD's high-level decoder API after the frame
+    header has been read but before the frame's audio data is decoded.
+
+  * Streamlined header processing so that mad_frame_decode() can be called
+    with or without having already called mad_frame_header().
+
+  * Fixed some other header reading miscellany, including CRC handling and
+    free bitrate detection, and frame length verification with free
+    bitrates.
+
+  * Fixed a problem with Layer III free bitrates > 320 kbps. The main_data
+    buffer size should now be large enough to handle any size frame, by
+    virtue of the maximum possible part2_3_length.
+
+  * Further developed the async API; arbitrary messages can now be passed to
+    the subsidiary decoding process.
+
+  * Streamlined timer.c and extended its interface. It now has support for
+    video frame/field lengths, including output support for drop-frame
+    encoding.
+
+  * Replaced many constant integer preprocessor defines with enums.
+
+Version 0.11.4 (beta)
+
+  * Fixed free format bitrate discovery.
+
+  * Changed the timer implementation and extended its interface.
+
+  * Integrated Nicolas Pitre's patch for pre-shifting at compile-time and
+    for better multiply/accumulate code output.
+
+  * Applied Simon Burge's patch to imdct_l_arm.S for a.out compatibility.
+
+  * Added -mtune=strongarm for all ARM targets.
+
+Version 0.11.3 (beta)
+
+  * Added new --enable-speed and --enable-accuracy options for `configure'
+    to automatically select appropriate SSO/ASO options, et al.
+
+  * Modified subband synthesis to use multiply/accumulate optimization (if
+    available) for better speed and/or accuracy.
+
+  * Incorporated Andre McCurdy's changes for further rounding optimizations
+    in the rest of his code.
+
+Version 0.11.2 (beta)
+
+  * Incorporated Nicolas Pitre's ARM assembly and parameterized scaling
+    changes.
+
+  * Incorporated Andre McCurdy's ARM assembly optimization (used only if
+    --enable-aso is given to `configure' to enable architecture-specific
+    optimizations.)
+
+  * Reduced FPM_INTEL assembly to two instructions.
+
+  * Fixed accuracy problems with certain FPM modes in synth.c.
+
+  * Improved the accuracy of FPM_APPROX.
+
+  * Improved the accuracy of SSO.
+
+  * Improved sync discovery by checking for a sync word in the following
+    frame.
+
+  * Minor code clean-up.
+
+  * Added experimental rules for generating a libmad.so shared library.
+
+Version 0.11.1 (beta)
+
+  * Moved libmad code into a separate directory.
+
+  * Changed SSO to be disabled by default, as output accuracy is deemed to
+    be more important than speed in the general case.
+
+  * Fixed a bug in Layer III sanity checking that could cause a crash on
+    certain random data input.
+
+  * Extended the Layer III requantization table from 8191 to 8206 as some
+    encoders are known to use these values, even though ISO/IEC 11172-3
+    suggests the maximum should be 8191.
+
+Version 0.11.0 (beta)
+
+  * Implemented MPEG-2 extension to Lower Sampling Frequencies.
+
+  * Improved Layer III performance by avoiding IMDCT calculation when all
+    input samples are zero.
+
+  * Significantly reduced size of Layer II tables.
+
+Version 0.10.3 (beta)
+
+  * Improved SSO output quality.
+
+  * Made portable to cygwin.
+
+  * Localized memory references in III_huffdecode() for better performance.
+
+Version 0.10.2 (beta)
+
+  * Rewrote Layer III long block 36-point IMDCT routine for better
+    performance.
+
+  * Improved subband synthesis fixed-point games somewhat.
+
+Version 0.10.1 (beta)
+
+  * Added a subband synthesis optimization (SSO) which involves modifying
+    the fixed-point multiplication method during windowing. This produces
+    subtle differences in the output but improves performance greatly.
+
+  * Added I_STEREO and MS_STEREO flags to frame struct.
+
+  * Eliminated privately-used CRCFAILED flag.
+
+  * Fixed a bug where Layer III decoding could crash on some badly-formatted
+    (e.g. non-MPEG) bitstreams.
+
+  * Miscellaneous code clean-up.
+
+Version 0.10.0 (beta)
+
+  * Added SPARC fixed-point math support.
+
+  * Revamped libmad API for better high- and low-level support.
+
+  * Documented more of the code.
+
+  * Changed sync semantics such that new stream buffers are assumed to be
+    sync-aligned.
+
+  * Changed Layer III to dynamically allocate static memory so as not to
+    waste it (about 6.4K) when only decoding Layer I or Layer II.
+
+===============================================================================
+

lib/libmad/COPYING

@@ -0,0 +1,340 @@
+		    GNU GENERAL PUBLIC LICENSE
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+    Gnomovision version 69, Copyright (C) year  name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.

lib/libmad/COPYRIGHT

@@ -0,0 +1,21 @@
+
+ libmad - MPEG audio decoder library
+ Copyright (C) 2000-2004 Underbit Technologies, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+ If you would like to negotiate alternate licensing terms, you may do
+ so by contacting: Underbit Technologies, Inc. <info@underbit.com>
+

lib/libmad/CREDITS

@@ -0,0 +1,116 @@
+
+ libmad - MPEG audio decoder library
+ Copyright (C) 2000-2004 Underbit Technologies, Inc.
+
+ $Id: CREDITS,v 1.5 2004/02/17 02:02:03 rob Exp $
+
+===============================================================================
+
+AUTHOR
+
+  Except where otherwise noted, all code was authored by:
+
+      Robert Leslie <rob@underbit.com>
+
+CONTRIBUTORS
+
+  Significant contributions have been incorporated with thanks to:
+
+      Anonymous
+        2002/03/15: frame.c
+          - Reported problem with use of reserved emphasis value.
+        2003/08/31: layer12.c
+          - Suggested support for certain disallowed bitrate/mode
+            combinations.
+
+      Niek Albers <info@daansystems.com>
+        2003/04/21: layer3.c
+          - Reported runtime uninitialized use of `ptr' in designating
+            ancillary bits after a decoding error.
+
+      Christian Biere <cbiere@users.sourceforge.net>
+        2003/02/01: frame.c
+          - Reported assertion failure in layer3.c due to an
+            invalid/unsupported Layer III free format bitrate.
+
+      David Blythe <blythe@routefree.com>
+        2001/01/30: fixed.h
+          - Provided initial PowerPC fixed-point assembly.
+
+      Simon Burge <simonb@wasabisystems.com>
+        2000/09/20: imdct_l_arm.S
+          - Suggested patch for a.out compatibility.
+
+      Brian Cameron <Brian.Cameron@sun.com>
+        2003/07/02: huffman.c
+          - Suggested changes for improved portability.
+
+      Joshua Haberman <joshua@haberman.com>
+        2001/08/10: decoder.c, huffman.c
+          - Suggested portability fixes.
+
+      Timothy King <lordzork@lordzork.com>
+        2002/05/04: sf_table.dat, layer12.c
+          - Reported problem with use of (missing) scalefactor index 63.
+
+      Felix von Leitner <felix-mad@fefe.de>
+        2003/01/21: fixed.h
+          - Suggested Intel scaling alternative for possible speedup.
+
+      Andre McCurdy <armccurdy@yahoo.co.uk>
+        2000/08/10: imdct_l_arm.S
+          - ARM optimized assembly replacement for III_imdct_l().
+        2000/09/15: imdct_l_arm.S
+          - Applied Nicolas Pitre's rounding optimisation in all remaining
+            places.
+        2001/02/10: layer3.c
+          - Inspiration for Huffman decoding and requantization rewrite, and
+            other miscellany.
+        2001/03/24: imdct_l_arm.S
+          - Corrected PIC unsafe code.
+        2002/02/16: fixed.h
+          - Discovered bug in ARM version of mad_f_scale64().
+
+      Haruhiko OGASAWARA <theta@m1.interq.or.jp>
+        2001/01/28: layer3.c
+          - Reported discrepancy in alias reduction for mixed short blocks.
+
+      Brett Paterson <brett@fmod.org>
+        2001/10/28: global.h
+          - Reported missing <assert.h> et al. under MS Embedded Visual C.
+
+      Sean 'Shaleh' Perry <shaleh@via.net>
+        2000/04/04: fixed.h
+          - Suggested use of size-dependent typedefs.
+        2001/10/22: config.guess, config.sub
+          - Keep up to date for proper Debian packaging.
+
+      Bertrand Petit <eemad@phoe.frmug.org>
+        2001/11/05: synth.h
+          - Suggested PCM channel enumeration constants.
+        2001/11/05: stream.h
+          - Suggested MAD_ERROR_NONE enumeration constant.
+        2001/11/05: stream.c
+          - Suggested mad_stream_errorstr() function.
+
+      Nicolas Pitre <nico@cam.org>
+        2000/09/09: fixed.h
+          - Parameterized all scaling for correct use of all multiplication
+            methods within mad_synth_frame().
+          - Rewrote the FPM_ARM version of mad_f_mul() so we have 64-bit
+            multiplication result, rounding and scaling with 3 instructions.
+        2000/09/09: imdct_l_arm.S
+          - Optimized rounding + scaling operations.
+        2000/09/17: synth.c
+          - Changed D[] run-time shifts to compile-time.
+          - Modified synthesis for better multiply/accumulate code output.
+        2001/08/11: fixed.h, synth.c
+          - Suggested 64-bit FPM negation and negative term factorization
+            during synthesis.
+        2001/08/11: fixed.h
+          - Suggested unrounded behavior for FPM_DEFAULT when OPT_SPEED.
+        2001/11/19: fixed.c
+          - Suggested computation of any resampling ratio.
+
+===============================================================================
+

lib/libmad/D.dat

@@ -0,0 +1,607 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: D.dat,v 1.9 2004/01/23 09:41:32 rob Exp $
+ */
+
+/*
+ * These are the coefficients for the subband synthesis window. This is a
+ * reordered version of Table B.3 from ISO/IEC 11172-3.
+ *
+ * Every value is parameterized so that shift optimizations can be made at
+ * compile-time. For example, every value can be right-shifted 12 bits to
+ * minimize multiply instruction times without any loss of accuracy.
+ */
+
+  {  PRESHIFT(0x00000000) /*  0.000000000 */,	/*  0 */
+    -PRESHIFT(0x0001d000) /* -0.000442505 */,
+     PRESHIFT(0x000d5000) /*  0.003250122 */,
+    -PRESHIFT(0x001cb000) /* -0.007003784 */,
+     PRESHIFT(0x007f5000) /*  0.031082153 */,
+    -PRESHIFT(0x01421000) /* -0.078628540 */,
+     PRESHIFT(0x019ae000) /*  0.100311279 */,
+    -PRESHIFT(0x09271000) /* -0.572036743 */,
+     PRESHIFT(0x1251e000) /*  1.144989014 */,
+     PRESHIFT(0x09271000) /*  0.572036743 */,
+     PRESHIFT(0x019ae000) /*  0.100311279 */,
+     PRESHIFT(0x01421000) /*  0.078628540 */,
+     PRESHIFT(0x007f5000) /*  0.031082153 */,
+     PRESHIFT(0x001cb000) /*  0.007003784 */,
+     PRESHIFT(0x000d5000) /*  0.003250122 */,
+     PRESHIFT(0x0001d000) /*  0.000442505 */,
+
+     PRESHIFT(0x00000000) /*  0.000000000 */,
+    -PRESHIFT(0x0001d000) /* -0.000442505 */,
+     PRESHIFT(0x000d5000) /*  0.003250122 */,
+    -PRESHIFT(0x001cb000) /* -0.007003784 */,
+     PRESHIFT(0x007f5000) /*  0.031082153 */,
+    -PRESHIFT(0x01421000) /* -0.078628540 */,
+     PRESHIFT(0x019ae000) /*  0.100311279 */,
+    -PRESHIFT(0x09271000) /* -0.572036743 */,
+     PRESHIFT(0x1251e000) /*  1.144989014 */,
+     PRESHIFT(0x09271000) /*  0.572036743 */,
+     PRESHIFT(0x019ae000) /*  0.100311279 */,
+     PRESHIFT(0x01421000) /*  0.078628540 */,
+     PRESHIFT(0x007f5000) /*  0.031082153 */,
+     PRESHIFT(0x001cb000) /*  0.007003784 */,
+     PRESHIFT(0x000d5000) /*  0.003250122 */,
+     PRESHIFT(0x0001d000) /*  0.000442505 */ },
+
+  { -PRESHIFT(0x00001000) /* -0.000015259 */,	/*  1 */
+    -PRESHIFT(0x0001f000) /* -0.000473022 */,
+     PRESHIFT(0x000da000) /*  0.003326416 */,
+    -PRESHIFT(0x00207000) /* -0.007919312 */,
+     PRESHIFT(0x007d0000) /*  0.030517578 */,
+    -PRESHIFT(0x0158d000) /* -0.084182739 */,
+     PRESHIFT(0x01747000) /*  0.090927124 */,
+    -PRESHIFT(0x099a8000) /* -0.600219727 */,
+     PRESHIFT(0x124f0000) /*  1.144287109 */,
+     PRESHIFT(0x08b38000) /*  0.543823242 */,
+     PRESHIFT(0x01bde000) /*  0.108856201 */,
+     PRESHIFT(0x012b4000) /*  0.073059082 */,
+     PRESHIFT(0x0080f000) /*  0.031478882 */,
+     PRESHIFT(0x00191000) /*  0.006118774 */,
+     PRESHIFT(0x000d0000) /*  0.003173828 */,
+     PRESHIFT(0x0001a000) /*  0.000396729 */,
+
+    -PRESHIFT(0x00001000) /* -0.000015259 */,
+    -PRESHIFT(0x0001f000) /* -0.000473022 */,
+     PRESHIFT(0x000da000) /*  0.003326416 */,
+    -PRESHIFT(0x00207000) /* -0.007919312 */,
+     PRESHIFT(0x007d0000) /*  0.030517578 */,
+    -PRESHIFT(0x0158d000) /* -0.084182739 */,
+     PRESHIFT(0x01747000) /*  0.090927124 */,
+    -PRESHIFT(0x099a8000) /* -0.600219727 */,
+     PRESHIFT(0x124f0000) /*  1.144287109 */,
+     PRESHIFT(0x08b38000) /*  0.543823242 */,
+     PRESHIFT(0x01bde000) /*  0.108856201 */,
+     PRESHIFT(0x012b4000) /*  0.073059082 */,
+     PRESHIFT(0x0080f000) /*  0.031478882 */,
+     PRESHIFT(0x00191000) /*  0.006118774 */,
+     PRESHIFT(0x000d0000) /*  0.003173828 */,
+     PRESHIFT(0x0001a000) /*  0.000396729 */ },
+
+  { -PRESHIFT(0x00001000) /* -0.000015259 */,	/*  2 */
+    -PRESHIFT(0x00023000) /* -0.000534058 */,
+     PRESHIFT(0x000de000) /*  0.003387451 */,
+    -PRESHIFT(0x00245000) /* -0.008865356 */,
+     PRESHIFT(0x007a0000) /*  0.029785156 */,
+    -PRESHIFT(0x016f7000) /* -0.089706421 */,
+     PRESHIFT(0x014a8000) /*  0.080688477 */,
+    -PRESHIFT(0x0a0d8000) /* -0.628295898 */,
+     PRESHIFT(0x12468000) /*  1.142211914 */,
+     PRESHIFT(0x083ff000) /*  0.515609741 */,
+     PRESHIFT(0x01dd8000) /*  0.116577148 */,
+     PRESHIFT(0x01149000) /*  0.067520142 */,
+     PRESHIFT(0x00820000) /*  0.031738281 */,
+     PRESHIFT(0x0015b000) /*  0.005294800 */,
+     PRESHIFT(0x000ca000) /*  0.003082275 */,
+     PRESHIFT(0x00018000) /*  0.000366211 */,
+
+    -PRESHIFT(0x00001000) /* -0.000015259 */,
+    -PRESHIFT(0x00023000) /* -0.000534058 */,
+     PRESHIFT(0x000de000) /*  0.003387451 */,
+    -PRESHIFT(0x00245000) /* -0.008865356 */,
+     PRESHIFT(0x007a0000) /*  0.029785156 */,
+    -PRESHIFT(0x016f7000) /* -0.089706421 */,
+     PRESHIFT(0x014a8000) /*  0.080688477 */,
+    -PRESHIFT(0x0a0d8000) /* -0.628295898 */,
+     PRESHIFT(0x12468000) /*  1.142211914 */,
+     PRESHIFT(0x083ff000) /*  0.515609741 */,
+     PRESHIFT(0x01dd8000) /*  0.116577148 */,
+     PRESHIFT(0x01149000) /*  0.067520142 */,
+     PRESHIFT(0x00820000) /*  0.031738281 */,
+     PRESHIFT(0x0015b000) /*  0.005294800 */,
+     PRESHIFT(0x000ca000) /*  0.003082275 */,
+     PRESHIFT(0x00018000) /*  0.000366211 */ },
+
+  { -PRESHIFT(0x00001000) /* -0.000015259 */,	/*  3 */
+    -PRESHIFT(0x00026000) /* -0.000579834 */,
+     PRESHIFT(0x000e1000) /*  0.003433228 */,
+    -PRESHIFT(0x00285000) /* -0.009841919 */,
+     PRESHIFT(0x00765000) /*  0.028884888 */,
+    -PRESHIFT(0x0185d000) /* -0.095169067 */,
+     PRESHIFT(0x011d1000) /*  0.069595337 */,
+    -PRESHIFT(0x0a7fe000) /* -0.656219482 */,
+     PRESHIFT(0x12386000) /*  1.138763428 */,
+     PRESHIFT(0x07ccb000) /*  0.487472534 */,
+     PRESHIFT(0x01f9c000) /*  0.123474121 */,
+     PRESHIFT(0x00fdf000) /*  0.061996460 */,
+     PRESHIFT(0x00827000) /*  0.031845093 */,
+     PRESHIFT(0x00126000) /*  0.004486084 */,
+     PRESHIFT(0x000c4000) /*  0.002990723 */,
+     PRESHIFT(0x00015000) /*  0.000320435 */,
+
+    -PRESHIFT(0x00001000) /* -0.000015259 */,
+    -PRESHIFT(0x00026000) /* -0.000579834 */,
+     PRESHIFT(0x000e1000) /*  0.003433228 */,
+    -PRESHIFT(0x00285000) /* -0.009841919 */,
+     PRESHIFT(0x00765000) /*  0.028884888 */,
+    -PRESHIFT(0x0185d000) /* -0.095169067 */,
+     PRESHIFT(0x011d1000) /*  0.069595337 */,
+    -PRESHIFT(0x0a7fe000) /* -0.656219482 */,
+     PRESHIFT(0x12386000) /*  1.138763428 */,
+     PRESHIFT(0x07ccb000) /*  0.487472534 */,
+     PRESHIFT(0x01f9c000) /*  0.123474121 */,
+     PRESHIFT(0x00fdf000) /*  0.061996460 */,
+     PRESHIFT(0x00827000) /*  0.031845093 */,
+     PRESHIFT(0x00126000) /*  0.004486084 */,
+     PRESHIFT(0x000c4000) /*  0.002990723 */,
+     PRESHIFT(0x00015000) /*  0.000320435 */ },
+
+  { -PRESHIFT(0x00001000) /* -0.000015259 */,	/*  4 */
+    -PRESHIFT(0x00029000) /* -0.000625610 */,
+     PRESHIFT(0x000e3000) /*  0.003463745 */,
+    -PRESHIFT(0x002c7000) /* -0.010848999 */,
+     PRESHIFT(0x0071e000) /*  0.027801514 */,
+    -PRESHIFT(0x019bd000) /* -0.100540161 */,
+     PRESHIFT(0x00ec0000) /*  0.057617187 */,
+    -PRESHIFT(0x0af15000) /* -0.683914185 */,
+     PRESHIFT(0x12249000) /*  1.133926392 */,
+     PRESHIFT(0x075a0000) /*  0.459472656 */,
+     PRESHIFT(0x0212c000) /*  0.129577637 */,
+     PRESHIFT(0x00e79000) /*  0.056533813 */,
+     PRESHIFT(0x00825000) /*  0.031814575 */,
+     PRESHIFT(0x000f4000) /*  0.003723145 */,
+     PRESHIFT(0x000be000) /*  0.002899170 */,
+     PRESHIFT(0x00013000) /*  0.000289917 */,
+
+    -PRESHIFT(0x00001000) /* -0.000015259 */,
+    -PRESHIFT(0x00029000) /* -0.000625610 */,
+     PRESHIFT(0x000e3000) /*  0.003463745 */,
+    -PRESHIFT(0x002c7000) /* -0.010848999 */,
+     PRESHIFT(0x0071e000) /*  0.027801514 */,
+    -PRESHIFT(0x019bd000) /* -0.100540161 */,
+     PRESHIFT(0x00ec0000) /*  0.057617187 */,
+    -PRESHIFT(0x0af15000) /* -0.683914185 */,
+     PRESHIFT(0x12249000) /*  1.133926392 */,
+     PRESHIFT(0x075a0000) /*  0.459472656 */,
+     PRESHIFT(0x0212c000) /*  0.129577637 */,
+     PRESHIFT(0x00e79000) /*  0.056533813 */,
+     PRESHIFT(0x00825000) /*  0.031814575 */,
+     PRESHIFT(0x000f4000) /*  0.003723145 */,
+     PRESHIFT(0x000be000) /*  0.002899170 */,
+     PRESHIFT(0x00013000) /*  0.000289917 */ },
+
+  { -PRESHIFT(0x00001000) /* -0.000015259 */,	/*  5 */
+    -PRESHIFT(0x0002d000) /* -0.000686646 */,
+     PRESHIFT(0x000e4000) /*  0.003479004 */,
+    -PRESHIFT(0x0030b000) /* -0.011886597 */,
+     PRESHIFT(0x006cb000) /*  0.026535034 */,
+    -PRESHIFT(0x01b17000) /* -0.105819702 */,
+     PRESHIFT(0x00b77000) /*  0.044784546 */,
+    -PRESHIFT(0x0b619000) /* -0.711318970 */,
+     PRESHIFT(0x120b4000) /*  1.127746582 */,
+     PRESHIFT(0x06e81000) /*  0.431655884 */,
+     PRESHIFT(0x02288000) /*  0.134887695 */,
+     PRESHIFT(0x00d17000) /*  0.051132202 */,
+     PRESHIFT(0x0081b000) /*  0.031661987 */,
+     PRESHIFT(0x000c5000) /*  0.003005981 */,
+     PRESHIFT(0x000b7000) /*  0.002792358 */,
+     PRESHIFT(0x00011000) /*  0.000259399 */,
+
+    -PRESHIFT(0x00001000) /* -0.000015259 */,
+    -PRESHIFT(0x0002d000) /* -0.000686646 */,
+     PRESHIFT(0x000e4000) /*  0.003479004 */,
+    -PRESHIFT(0x0030b000) /* -0.011886597 */,
+     PRESHIFT(0x006cb000) /*  0.026535034 */,
+    -PRESHIFT(0x01b17000) /* -0.105819702 */,
+     PRESHIFT(0x00b77000) /*  0.044784546 */,
+    -PRESHIFT(0x0b619000) /* -0.711318970 */,
+     PRESHIFT(0x120b4000) /*  1.127746582 */,
+     PRESHIFT(0x06e81000) /*  0.431655884 */,
+     PRESHIFT(0x02288000) /*  0.134887695 */,
+     PRESHIFT(0x00d17000) /*  0.051132202 */,
+     PRESHIFT(0x0081b000) /*  0.031661987 */,
+     PRESHIFT(0x000c5000) /*  0.003005981 */,
+     PRESHIFT(0x000b7000) /*  0.002792358 */,
+     PRESHIFT(0x00011000) /*  0.000259399 */ },
+
+  { -PRESHIFT(0x00001000) /* -0.000015259 */,	/*  6 */
+    -PRESHIFT(0x00031000) /* -0.000747681 */,
+     PRESHIFT(0x000e4000) /*  0.003479004 */,
+    -PRESHIFT(0x00350000) /* -0.012939453 */,
+     PRESHIFT(0x0066c000) /*  0.025085449 */,
+    -PRESHIFT(0x01c67000) /* -0.110946655 */,
+     PRESHIFT(0x007f5000) /*  0.031082153 */,
+    -PRESHIFT(0x0bd06000) /* -0.738372803 */,
+     PRESHIFT(0x11ec7000) /*  1.120223999 */,
+     PRESHIFT(0x06772000) /*  0.404083252 */,
+     PRESHIFT(0x023b3000) /*  0.139450073 */,
+     PRESHIFT(0x00bbc000) /*  0.045837402 */,
+     PRESHIFT(0x00809000) /*  0.031387329 */,
+     PRESHIFT(0x00099000) /*  0.002334595 */,
+     PRESHIFT(0x000b0000) /*  0.002685547 */,
+     PRESHIFT(0x00010000) /*  0.000244141 */,
+
+    -PRESHIFT(0x00001000) /* -0.000015259 */,
+    -PRESHIFT(0x00031000) /* -0.000747681 */,
+     PRESHIFT(0x000e4000) /*  0.003479004 */,
+    -PRESHIFT(0x00350000) /* -0.012939453 */,
+     PRESHIFT(0x0066c000) /*  0.025085449 */,
+    -PRESHIFT(0x01c67000) /* -0.110946655 */,
+     PRESHIFT(0x007f5000) /*  0.031082153 */,
+    -PRESHIFT(0x0bd06000) /* -0.738372803 */,
+     PRESHIFT(0x11ec7000) /*  1.120223999 */,
+     PRESHIFT(0x06772000) /*  0.404083252 */,
+     PRESHIFT(0x023b3000) /*  0.139450073 */,
+     PRESHIFT(0x00bbc000) /*  0.045837402 */,
+     PRESHIFT(0x00809000) /*  0.031387329 */,
+     PRESHIFT(0x00099000) /*  0.002334595 */,
+     PRESHIFT(0x000b0000) /*  0.002685547 */,
+     PRESHIFT(0x00010000) /*  0.000244141 */ },
+
+  { -PRESHIFT(0x00002000) /* -0.000030518 */,	/*  7 */
+    -PRESHIFT(0x00035000) /* -0.000808716 */,
+     PRESHIFT(0x000e3000) /*  0.003463745 */,
+    -PRESHIFT(0x00397000) /* -0.014022827 */,
+     PRESHIFT(0x005ff000) /*  0.023422241 */,
+    -PRESHIFT(0x01dad000) /* -0.115921021 */,
+     PRESHIFT(0x0043a000) /*  0.016510010 */,
+    -PRESHIFT(0x0c3d9000) /* -0.765029907 */,
+     PRESHIFT(0x11c83000) /*  1.111373901 */,
+     PRESHIFT(0x06076000) /*  0.376800537 */,
+     PRESHIFT(0x024ad000) /*  0.143264771 */,
+     PRESHIFT(0x00a67000) /*  0.040634155 */,
+     PRESHIFT(0x007f0000) /*  0.031005859 */,
+     PRESHIFT(0x0006f000) /*  0.001693726 */,
+     PRESHIFT(0x000a9000) /*  0.002578735 */,
+     PRESHIFT(0x0000e000) /*  0.000213623 */,
+
+    -PRESHIFT(0x00002000) /* -0.000030518 */,
+    -PRESHIFT(0x00035000) /* -0.000808716 */,
+     PRESHIFT(0x000e3000) /*  0.003463745 */,
+    -PRESHIFT(0x00397000) /* -0.014022827 */,
+     PRESHIFT(0x005ff000) /*  0.023422241 */,
+    -PRESHIFT(0x01dad000) /* -0.115921021 */,
+     PRESHIFT(0x0043a000) /*  0.016510010 */,
+    -PRESHIFT(0x0c3d9000) /* -0.765029907 */,
+     PRESHIFT(0x11c83000) /*  1.111373901 */,
+     PRESHIFT(0x06076000) /*  0.376800537 */,
+     PRESHIFT(0x024ad000) /*  0.143264771 */,
+     PRESHIFT(0x00a67000) /*  0.040634155 */,
+     PRESHIFT(0x007f0000) /*  0.031005859 */,
+     PRESHIFT(0x0006f000) /*  0.001693726 */,
+     PRESHIFT(0x000a9000) /*  0.002578735 */,
+     PRESHIFT(0x0000e000) /*  0.000213623 */ },
+
+  { -PRESHIFT(0x00002000) /* -0.000030518 */,	/*  8 */
+    -PRESHIFT(0x0003a000) /* -0.000885010 */,
+     PRESHIFT(0x000e0000) /*  0.003417969 */,
+    -PRESHIFT(0x003df000) /* -0.015121460 */,
+     PRESHIFT(0x00586000) /*  0.021575928 */,
+    -PRESHIFT(0x01ee6000) /* -0.120697021 */,
+     PRESHIFT(0x00046000) /*  0.001068115 */,
+    -PRESHIFT(0x0ca8d000) /* -0.791213989 */,
+     PRESHIFT(0x119e9000) /*  1.101211548 */,
+     PRESHIFT(0x05991000) /*  0.349868774 */,
+     PRESHIFT(0x02578000) /*  0.146362305 */,
+     PRESHIFT(0x0091a000) /*  0.035552979 */,
+     PRESHIFT(0x007d1000) /*  0.030532837 */,
+     PRESHIFT(0x00048000) /*  0.001098633 */,
+     PRESHIFT(0x000a1000) /*  0.002456665 */,
+     PRESHIFT(0x0000d000) /*  0.000198364 */,
+
+    -PRESHIFT(0x00002000) /* -0.000030518 */,
+    -PRESHIFT(0x0003a000) /* -0.000885010 */,
+     PRESHIFT(0x000e0000) /*  0.003417969 */,
+    -PRESHIFT(0x003df000) /* -0.015121460 */,
+     PRESHIFT(0x00586000) /*  0.021575928 */,
+    -PRESHIFT(0x01ee6000) /* -0.120697021 */,
+     PRESHIFT(0x00046000) /*  0.001068115 */,
+    -PRESHIFT(0x0ca8d000) /* -0.791213989 */,
+     PRESHIFT(0x119e9000) /*  1.101211548 */,
+     PRESHIFT(0x05991000) /*  0.349868774 */,
+     PRESHIFT(0x02578000) /*  0.146362305 */,
+     PRESHIFT(0x0091a000) /*  0.035552979 */,
+     PRESHIFT(0x007d1000) /*  0.030532837 */,
+     PRESHIFT(0x00048000) /*  0.001098633 */,
+     PRESHIFT(0x000a1000) /*  0.002456665 */,
+     PRESHIFT(0x0000d000) /*  0.000198364 */ },
+
+  { -PRESHIFT(0x00002000) /* -0.000030518 */,	/*  9 */
+    -PRESHIFT(0x0003f000) /* -0.000961304 */,
+     PRESHIFT(0x000dd000) /*  0.003372192 */,
+    -PRESHIFT(0x00428000) /* -0.016235352 */,
+     PRESHIFT(0x00500000) /*  0.019531250 */,
+    -PRESHIFT(0x02011000) /* -0.125259399 */,
+    -PRESHIFT(0x003e6000) /* -0.015228271 */,
+    -PRESHIFT(0x0d11e000) /* -0.816864014 */,
+     PRESHIFT(0x116fc000) /*  1.089782715 */,
+     PRESHIFT(0x052c5000) /*  0.323318481 */,
+     PRESHIFT(0x02616000) /*  0.148773193 */,
+     PRESHIFT(0x007d6000) /*  0.030609131 */,
+     PRESHIFT(0x007aa000) /*  0.029937744 */,
+     PRESHIFT(0x00024000) /*  0.000549316 */,
+     PRESHIFT(0x0009a000) /*  0.002349854 */,
+     PRESHIFT(0x0000b000) /*  0.000167847 */,
+
+    -PRESHIFT(0x00002000) /* -0.000030518 */,
+    -PRESHIFT(0x0003f000) /* -0.000961304 */,
+     PRESHIFT(0x000dd000) /*  0.003372192 */,
+    -PRESHIFT(0x00428000) /* -0.016235352 */,
+     PRESHIFT(0x00500000) /*  0.019531250 */,
+    -PRESHIFT(0x02011000) /* -0.125259399 */,
+    -PRESHIFT(0x003e6000) /* -0.015228271 */,
+    -PRESHIFT(0x0d11e000) /* -0.816864014 */,
+     PRESHIFT(0x116fc000) /*  1.089782715 */,
+     PRESHIFT(0x052c5000) /*  0.323318481 */,
+     PRESHIFT(0x02616000) /*  0.148773193 */,
+     PRESHIFT(0x007d6000) /*  0.030609131 */,
+     PRESHIFT(0x007aa000) /*  0.029937744 */,
+     PRESHIFT(0x00024000) /*  0.000549316 */,
+     PRESHIFT(0x0009a000) /*  0.002349854 */,
+     PRESHIFT(0x0000b000) /*  0.000167847 */ },
+
+  { -PRESHIFT(0x00002000) /* -0.000030518 */,	/* 10 */
+    -PRESHIFT(0x00044000) /* -0.001037598 */,
+     PRESHIFT(0x000d7000) /*  0.003280640 */,
+    -PRESHIFT(0x00471000) /* -0.017349243 */,
+     PRESHIFT(0x0046b000) /*  0.017257690 */,
+    -PRESHIFT(0x0212b000) /* -0.129562378 */,
+    -PRESHIFT(0x0084a000) /* -0.032379150 */,
+    -PRESHIFT(0x0d78a000) /* -0.841949463 */,
+     PRESHIFT(0x113be000) /*  1.077117920 */,
+     PRESHIFT(0x04c16000) /*  0.297210693 */,
+     PRESHIFT(0x02687000) /*  0.150497437 */,
+     PRESHIFT(0x0069c000) /*  0.025817871 */,
+     PRESHIFT(0x0077f000) /*  0.029281616 */,
+     PRESHIFT(0x00002000) /*  0.000030518 */,
+     PRESHIFT(0x00093000) /*  0.002243042 */,
+     PRESHIFT(0x0000a000) /*  0.000152588 */,
+
+    -PRESHIFT(0x00002000) /* -0.000030518 */,
+    -PRESHIFT(0x00044000) /* -0.001037598 */,
+     PRESHIFT(0x000d7000) /*  0.003280640 */,
+    -PRESHIFT(0x00471000) /* -0.017349243 */,
+     PRESHIFT(0x0046b000) /*  0.017257690 */,
+    -PRESHIFT(0x0212b000) /* -0.129562378 */,
+    -PRESHIFT(0x0084a000) /* -0.032379150 */,
+    -PRESHIFT(0x0d78a000) /* -0.841949463 */,
+     PRESHIFT(0x113be000) /*  1.077117920 */,
+     PRESHIFT(0x04c16000) /*  0.297210693 */,
+     PRESHIFT(0x02687000) /*  0.150497437 */,
+     PRESHIFT(0x0069c000) /*  0.025817871 */,
+     PRESHIFT(0x0077f000) /*  0.029281616 */,
+     PRESHIFT(0x00002000) /*  0.000030518 */,
+     PRESHIFT(0x00093000) /*  0.002243042 */,
+     PRESHIFT(0x0000a000) /*  0.000152588 */ },
+
+  { -PRESHIFT(0x00003000) /* -0.000045776 */,	/* 11 */
+    -PRESHIFT(0x00049000) /* -0.001113892 */,
+     PRESHIFT(0x000d0000) /*  0.003173828 */,
+    -PRESHIFT(0x004ba000) /* -0.018463135 */,
+     PRESHIFT(0x003ca000) /*  0.014801025 */,
+    -PRESHIFT(0x02233000) /* -0.133590698 */,
+    -PRESHIFT(0x00ce4000) /* -0.050354004 */,
+    -PRESHIFT(0x0ddca000) /* -0.866363525 */,
+     PRESHIFT(0x1102f000) /*  1.063217163 */,
+     PRESHIFT(0x04587000) /*  0.271591187 */,
+     PRESHIFT(0x026cf000) /*  0.151596069 */,
+     PRESHIFT(0x0056c000) /*  0.021179199 */,
+     PRESHIFT(0x0074e000) /*  0.028533936 */,
+    -PRESHIFT(0x0001d000) /* -0.000442505 */,
+     PRESHIFT(0x0008b000) /*  0.002120972 */,
+     PRESHIFT(0x00009000) /*  0.000137329 */,
+
+    -PRESHIFT(0x00003000) /* -0.000045776 */,
+    -PRESHIFT(0x00049000) /* -0.001113892 */,
+     PRESHIFT(0x000d0000) /*  0.003173828 */,
+    -PRESHIFT(0x004ba000) /* -0.018463135 */,
+     PRESHIFT(0x003ca000) /*  0.014801025 */,
+    -PRESHIFT(0x02233000) /* -0.133590698 */,
+    -PRESHIFT(0x00ce4000) /* -0.050354004 */,
+    -PRESHIFT(0x0ddca000) /* -0.866363525 */,
+     PRESHIFT(0x1102f000) /*  1.063217163 */,
+     PRESHIFT(0x04587000) /*  0.271591187 */,
+     PRESHIFT(0x026cf000) /*  0.151596069 */,
+     PRESHIFT(0x0056c000) /*  0.021179199 */,
+     PRESHIFT(0x0074e000) /*  0.028533936 */,
+    -PRESHIFT(0x0001d000) /* -0.000442505 */,
+     PRESHIFT(0x0008b000) /*  0.002120972 */,
+     PRESHIFT(0x00009000) /*  0.000137329 */ },
+
+  { -PRESHIFT(0x00003000) /* -0.000045776 */,	/* 12 */
+    -PRESHIFT(0x0004f000) /* -0.001205444 */,
+     PRESHIFT(0x000c8000) /*  0.003051758 */,
+    -PRESHIFT(0x00503000) /* -0.019577026 */,
+     PRESHIFT(0x0031a000) /*  0.012115479 */,
+    -PRESHIFT(0x02326000) /* -0.137298584 */,
+    -PRESHIFT(0x011b5000) /* -0.069168091 */,
+    -PRESHIFT(0x0e3dd000) /* -0.890090942 */,
+     PRESHIFT(0x10c54000) /*  1.048156738 */,
+     PRESHIFT(0x03f1b000) /*  0.246505737 */,
+     PRESHIFT(0x026ee000) /*  0.152069092 */,
+     PRESHIFT(0x00447000) /*  0.016708374 */,
+     PRESHIFT(0x00719000) /*  0.027725220 */,
+    -PRESHIFT(0x00039000) /* -0.000869751 */,
+     PRESHIFT(0x00084000) /*  0.002014160 */,
+     PRESHIFT(0x00008000) /*  0.000122070 */,
+
+    -PRESHIFT(0x00003000) /* -0.000045776 */,
+    -PRESHIFT(0x0004f000) /* -0.001205444 */,
+     PRESHIFT(0x000c8000) /*  0.003051758 */,
+    -PRESHIFT(0x00503000) /* -0.019577026 */,
+     PRESHIFT(0x0031a000) /*  0.012115479 */,
+    -PRESHIFT(0x02326000) /* -0.137298584 */,
+    -PRESHIFT(0x011b5000) /* -0.069168091 */,
+    -PRESHIFT(0x0e3dd000) /* -0.890090942 */,
+     PRESHIFT(0x10c54000) /*  1.048156738 */,
+     PRESHIFT(0x03f1b000) /*  0.246505737 */,
+     PRESHIFT(0x026ee000) /*  0.152069092 */,
+     PRESHIFT(0x00447000) /*  0.016708374 */,
+     PRESHIFT(0x00719000) /*  0.027725220 */,
+    -PRESHIFT(0x00039000) /* -0.000869751 */,
+     PRESHIFT(0x00084000) /*  0.002014160 */,
+     PRESHIFT(0x00008000) /*  0.000122070 */ },
+
+  { -PRESHIFT(0x00004000) /* -0.000061035 */,	/* 13 */
+    -PRESHIFT(0x00055000) /* -0.001296997 */,
+     PRESHIFT(0x000bd000) /*  0.002883911 */,
+    -PRESHIFT(0x0054c000) /* -0.020690918 */,
+     PRESHIFT(0x0025d000) /*  0.009231567 */,
+    -PRESHIFT(0x02403000) /* -0.140670776 */,
+    -PRESHIFT(0x016ba000) /* -0.088775635 */,
+    -PRESHIFT(0x0e9be000) /* -0.913055420 */,
+     PRESHIFT(0x1082d000) /*  1.031936646 */,
+     PRESHIFT(0x038d4000) /*  0.221984863 */,
+     PRESHIFT(0x026e7000) /*  0.151962280 */,
+     PRESHIFT(0x0032e000) /*  0.012420654 */,
+     PRESHIFT(0x006df000) /*  0.026840210 */,
+    -PRESHIFT(0x00053000) /* -0.001266479 */,
+     PRESHIFT(0x0007d000) /*  0.001907349 */,
+     PRESHIFT(0x00007000) /*  0.000106812 */,
+
+    -PRESHIFT(0x00004000) /* -0.000061035 */,
+    -PRESHIFT(0x00055000) /* -0.001296997 */,
+     PRESHIFT(0x000bd000) /*  0.002883911 */,
+    -PRESHIFT(0x0054c000) /* -0.020690918 */,
+     PRESHIFT(0x0025d000) /*  0.009231567 */,
+    -PRESHIFT(0x02403000) /* -0.140670776 */,
+    -PRESHIFT(0x016ba000) /* -0.088775635 */,
+    -PRESHIFT(0x0e9be000) /* -0.913055420 */,
+     PRESHIFT(0x1082d000) /*  1.031936646 */,
+     PRESHIFT(0x038d4000) /*  0.221984863 */,
+     PRESHIFT(0x026e7000) /*  0.151962280 */,
+     PRESHIFT(0x0032e000) /*  0.012420654 */,
+     PRESHIFT(0x006df000) /*  0.026840210 */,
+    -PRESHIFT(0x00053000) /* -0.001266479 */,
+     PRESHIFT(0x0007d000) /*  0.001907349 */,
+     PRESHIFT(0x00007000) /*  0.000106812 */ },
+
+  { -PRESHIFT(0x00004000) /* -0.000061035 */,	/* 14 */
+    -PRESHIFT(0x0005b000) /* -0.001388550 */,
+     PRESHIFT(0x000b1000) /*  0.002700806 */,
+    -PRESHIFT(0x00594000) /* -0.021789551 */,
+     PRESHIFT(0x00192000) /*  0.006134033 */,
+    -PRESHIFT(0x024c8000) /* -0.143676758 */,
+    -PRESHIFT(0x01bf2000) /* -0.109161377 */,
+    -PRESHIFT(0x0ef69000) /* -0.935195923 */,
+     PRESHIFT(0x103be000) /*  1.014617920 */,
+     PRESHIFT(0x032b4000) /*  0.198059082 */,
+     PRESHIFT(0x026bc000) /*  0.151306152 */,
+     PRESHIFT(0x00221000) /*  0.008316040 */,
+     PRESHIFT(0x006a2000) /*  0.025909424 */,
+    -PRESHIFT(0x0006a000) /* -0.001617432 */,
+     PRESHIFT(0x00075000) /*  0.001785278 */,
+     PRESHIFT(0x00007000) /*  0.000106812 */,
+
+    -PRESHIFT(0x00004000) /* -0.000061035 */,
+    -PRESHIFT(0x0005b000) /* -0.001388550 */,
+     PRESHIFT(0x000b1000) /*  0.002700806 */,
+    -PRESHIFT(0x00594000) /* -0.021789551 */,
+     PRESHIFT(0x00192000) /*  0.006134033 */,
+    -PRESHIFT(0x024c8000) /* -0.143676758 */,
+    -PRESHIFT(0x01bf2000) /* -0.109161377 */,
+    -PRESHIFT(0x0ef69000) /* -0.935195923 */,
+     PRESHIFT(0x103be000) /*  1.014617920 */,
+     PRESHIFT(0x032b4000) /*  0.198059082 */,
+     PRESHIFT(0x026bc000) /*  0.151306152 */,
+     PRESHIFT(0x00221000) /*  0.008316040 */,
+     PRESHIFT(0x006a2000) /*  0.025909424 */,
+    -PRESHIFT(0x0006a000) /* -0.001617432 */,
+     PRESHIFT(0x00075000) /*  0.001785278 */,
+     PRESHIFT(0x00007000) /*  0.000106812 */ },
+
+  { -PRESHIFT(0x00005000) /* -0.000076294 */,	/* 15 */
+    -PRESHIFT(0x00061000) /* -0.001480103 */,
+     PRESHIFT(0x000a3000) /*  0.002487183 */,
+    -PRESHIFT(0x005da000) /* -0.022857666 */,
+     PRESHIFT(0x000b9000) /*  0.002822876 */,
+    -PRESHIFT(0x02571000) /* -0.146255493 */,
+    -PRESHIFT(0x0215c000) /* -0.130310059 */,
+    -PRESHIFT(0x0f4dc000) /* -0.956481934 */,
+     PRESHIFT(0x0ff0a000) /*  0.996246338 */,
+     PRESHIFT(0x02cbf000) /*  0.174789429 */,
+     PRESHIFT(0x0266e000) /*  0.150115967 */,
+     PRESHIFT(0x00120000) /*  0.004394531 */,
+     PRESHIFT(0x00662000) /*  0.024932861 */,
+    -PRESHIFT(0x0007f000) /* -0.001937866 */,
+     PRESHIFT(0x0006f000) /*  0.001693726 */,
+     PRESHIFT(0x00006000) /*  0.000091553 */,
+
+    -PRESHIFT(0x00005000) /* -0.000076294 */,
+    -PRESHIFT(0x00061000) /* -0.001480103 */,
+     PRESHIFT(0x000a3000) /*  0.002487183 */,
+    -PRESHIFT(0x005da000) /* -0.022857666 */,
+     PRESHIFT(0x000b9000) /*  0.002822876 */,
+    -PRESHIFT(0x02571000) /* -0.146255493 */,
+    -PRESHIFT(0x0215c000) /* -0.130310059 */,
+    -PRESHIFT(0x0f4dc000) /* -0.956481934 */,
+     PRESHIFT(0x0ff0a000) /*  0.996246338 */,
+     PRESHIFT(0x02cbf000) /*  0.174789429 */,
+     PRESHIFT(0x0266e000) /*  0.150115967 */,
+     PRESHIFT(0x00120000) /*  0.004394531 */,
+     PRESHIFT(0x00662000) /*  0.024932861 */,
+    -PRESHIFT(0x0007f000) /* -0.001937866 */,
+     PRESHIFT(0x0006f000) /*  0.001693726 */,
+     PRESHIFT(0x00006000) /*  0.000091553 */ },
+
+  { -PRESHIFT(0x00005000) /* -0.000076294 */,	/* 16 */
+    -PRESHIFT(0x00068000) /* -0.001586914 */,
+     PRESHIFT(0x00092000) /*  0.002227783 */,
+    -PRESHIFT(0x0061f000) /* -0.023910522 */,
+    -PRESHIFT(0x0002d000) /* -0.000686646 */,
+    -PRESHIFT(0x025ff000) /* -0.148422241 */,
+    -PRESHIFT(0x026f7000) /* -0.152206421 */,
+    -PRESHIFT(0x0fa13000) /* -0.976852417 */,
+     PRESHIFT(0x0fa13000) /*  0.976852417 */,
+     PRESHIFT(0x026f7000) /*  0.152206421 */,
+     PRESHIFT(0x025ff000) /*  0.148422241 */,
+     PRESHIFT(0x0002d000) /*  0.000686646 */,
+     PRESHIFT(0x0061f000) /*  0.023910522 */,
+    -PRESHIFT(0x00092000) /* -0.002227783 */,
+     PRESHIFT(0x00068000) /*  0.001586914 */,
+     PRESHIFT(0x00005000) /*  0.000076294 */,
+
+    -PRESHIFT(0x00005000) /* -0.000076294 */,
+    -PRESHIFT(0x00068000) /* -0.001586914 */,
+     PRESHIFT(0x00092000) /*  0.002227783 */,
+    -PRESHIFT(0x0061f000) /* -0.023910522 */,
+    -PRESHIFT(0x0002d000) /* -0.000686646 */,
+    -PRESHIFT(0x025ff000) /* -0.148422241 */,
+    -PRESHIFT(0x026f7000) /* -0.152206421 */,
+    -PRESHIFT(0x0fa13000) /* -0.976852417 */,
+     PRESHIFT(0x0fa13000) /*  0.976852417 */,
+     PRESHIFT(0x026f7000) /*  0.152206421 */,
+     PRESHIFT(0x025ff000) /*  0.148422241 */,
+     PRESHIFT(0x0002d000) /*  0.000686646 */,
+     PRESHIFT(0x0061f000) /*  0.023910522 */,
+    -PRESHIFT(0x00092000) /* -0.002227783 */,
+     PRESHIFT(0x00068000) /*  0.001586914 */,
+     PRESHIFT(0x00005000) /*  0.000076294 */ }

lib/libmad/INSTALL

@@ -0,0 +1,183 @@
+Basic Installation
+==================
+
+   These are generic installation instructions.
+
+   The `configure' shell script attempts to guess correct values for
+various system-dependent variables used during compilation.  It uses
+those values to create a `Makefile' in each directory of the package.
+It may also create one or more `.h' files containing system-dependent
+definitions.  Finally, it creates a shell script `config.status' that
+you can run in the future to recreate the current configuration, a file
+`config.cache' that saves the results of its tests to speed up
+reconfiguring, and a file `config.log' containing compiler output
+(useful mainly for debugging `configure').
+
+   If you need to do unusual things to compile the package, please try
+to figure out how `configure' could check whether to do them, and mail
+diffs or instructions to the address given in the `README' so they can
+be considered for the next release.  If at some point `config.cache'
+contains results you don't want to keep, you may remove or edit it.
+
+   The file `configure.in' is used to create `configure' by a program
+called `autoconf'.  You only need `configure.in' if you want to change
+it or regenerate `configure' using a newer version of `autoconf'.
+
+The simplest way to compile this package is:
+
+  1. `cd' to the directory containing the package's source code and type
+     `./configure' to configure the package for your system.  If you're
+     using `csh' on an old version of System V, you might need to type
+     `sh ./configure' instead to prevent `csh' from trying to execute
+     `configure' itself.
+
+     Running `configure' takes awhile.  While running, it prints some
+     messages telling which features it is checking for.
+
+  2. Type `make' to compile the package.
+
+  3. Optionally, type `make check' to run any self-tests that come with
+     the package.
+
+  4. Type `make install' to install the programs and any data files and
+     documentation.
+
+  5. You can remove the program binaries and object files from the
+     source code directory by typing `make clean'.  To also remove the
+     files that `configure' created (so you can compile the package for
+     a different kind of computer), type `make distclean'.  There is
+     also a `make maintainer-clean' target, but that is intended mainly
+     for the package's developers.  If you use it, you may have to get
+     all sorts of other programs in order to regenerate files that came
+     with the distribution.
+
+Compilers and Options
+=====================
+
+   Some systems require unusual options for compilation or linking that
+the `configure' script does not know about.  You can give `configure'
+initial values for variables by setting them in the environment.  Using
+a Bourne-compatible shell, you can do that on the command line like
+this:
+     CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
+
+Or on systems that have the `env' program, you can do it like this:
+     env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
+
+Compiling For Multiple Architectures
+====================================
+
+   You can compile the package for more than one kind of computer at the
+same time, by placing the object files for each architecture in their
+own directory.  To do this, you must use a version of `make' that
+supports the `VPATH' variable, such as GNU `make'.  `cd' to the
+directory where you want the object files and executables to go and run
+the `configure' script.  `configure' automatically checks for the
+source code in the directory that `configure' is in and in `..'.
+
+   If you have to use a `make' that does not supports the `VPATH'
+variable, you have to compile the package for one architecture at a time
+in the source code directory.  After you have installed the package for
+one architecture, use `make distclean' before reconfiguring for another
+architecture.
+
+Installation Names
+==================
+
+   By default, `make install' will install the package's files in
+`/usr/local/bin', `/usr/local/man', etc.  You can specify an
+installation prefix other than `/usr/local' by giving `configure' the
+option `--prefix=PATH'.
+
+   You can specify separate installation prefixes for
+architecture-specific files and architecture-independent files.  If you
+give `configure' the option `--exec-prefix=PATH', the package will use
+PATH as the prefix for installing programs and libraries.
+Documentation and other data files will still use the regular prefix.
+
+   In addition, if you use an unusual directory layout you can give
+options like `--bindir=PATH' to specify different values for particular
+kinds of files.  Run `configure --help' for a list of the directories
+you can set and what kinds of files go in them.
+
+   If the package supports it, you can cause programs to be installed
+with an extra prefix or suffix on their names by giving `configure' the
+option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+
+Optional Features
+=================
+
+   Some packages pay attention to `--enable-FEATURE' options to
+`configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+is something like `gnu-as' or `x' (for the X Window System).  The
+`README' should mention any `--enable-' and `--with-' options that the
+package recognizes.
+
+   For packages that use the X Window System, `configure' can usually
+find the X include and library files automatically, but if it doesn't,
+you can use the `configure' options `--x-includes=DIR' and
+`--x-libraries=DIR' to specify their locations.
+
+Specifying the System Type
+==========================
+
+   There may be some features `configure' can not figure out
+automatically, but needs to determine by the type of host the package
+will run on.  Usually `configure' can figure that out, but if it prints
+a message saying it can not guess the host type, give it the
+`--host=TYPE' option.  TYPE can either be a short name for the system
+type, such as `sun4', or a canonical name with three fields:
+     CPU-COMPANY-SYSTEM
+
+See the file `config.sub' for the possible values of each field.  If
+`config.sub' isn't included in this package, then this package doesn't
+need to know the host type.
+
+   If you are building compiler tools for cross-compiling, you can also
+use the `--target=TYPE' option to select the type of system they will
+produce code for and the `--build=TYPE' option to select the type of
+system on which you are compiling the package.
+
+Sharing Defaults
+================
+
+   If you want to set default values for `configure' scripts to share,
+you can create a site shell script called `config.site' that gives
+default values for variables like `CC', `cache_file', and `prefix'.
+`configure' looks for `PREFIX/share/config.site' if it exists, then
+`PREFIX/etc/config.site' if it exists.  Or, you can set the
+`CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all `configure' scripts look for a site script.
+
+Operation Controls
+==================
+
+   `configure' recognizes the following options to control how it
+operates.
+
+`--cache-file=FILE'
+     Use and save the results of the tests in FILE instead of
+     `./config.cache'.  Set FILE to `/dev/null' to disable caching, for
+     debugging `configure'.
+
+`--help'
+     Print a summary of the options to `configure', and exit.
+
+`--quiet'
+`--silent'
+`-q'
+     Do not print messages saying which checks are being made.  To
+     suppress all normal output, redirect it to `/dev/null' (any error
+     messages will still be shown).
+
+`--srcdir=DIR'
+     Look for the package's source code in directory DIR.  Usually
+     `configure' can determine that directory automatically.
+
+`--version'
+     Print the version of Autoconf used to generate the `configure'
+     script, and exit.
+
+`configure' also accepts some other, not widely useful, options.
+

lib/libmad/Makefile.am

@@ -0,0 +1,140 @@
+##
+## libmad - MPEG audio decoder library
+## Copyright (C) 2000-2004 Underbit Technologies, Inc.
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+##
+## $Id: Makefile.am,v 1.23 2004/02/17 02:02:03 rob Exp $
+##
+
+## Process this file with automake to produce Makefile.in
+
+SUBDIRS =		
+DIST_SUBDIRS =		msvc++
+
+lib_LTLIBRARIES =	libmad.la
+include_HEADERS =	mad.h
+
+EXTRA_PROGRAMS =	minimad
+
+minimad_SOURCES =	minimad.c
+minimad_INCLUDES =	
+minimad_LDADD =		libmad.la
+
+EXTRA_DIST =		mad.h.sed  \
+			CHANGES COPYRIGHT CREDITS README TODO VERSION
+
+exported_headers =	version.h fixed.h bit.h timer.h stream.h frame.h  \
+			synth.h decoder.h
+
+headers =		$(exported_headers)  \
+			global.h layer12.h layer3.h huffman.h
+
+data_includes =		D.dat imdct_s.dat qc_table.dat rq_table.dat  \
+			sf_table.dat
+
+libmad_la_SOURCES =	version.c fixed.c bit.c timer.c stream.c frame.c  \
+			synth.c decoder.c layer12.c layer3.c huffman.c  \
+			$(headers) $(data_includes)
+
+EXTRA_libmad_la_SOURCES =	imdct_l_arm.S #synth_mmx.S
+
+libmad_la_DEPENDENCIES =	@ASO_OBJS@
+libmad_la_LIBADD =		@ASO_OBJS@
+
+INCLUDES =		$(FPM) $(ASO)
+
+BUILT_SOURCES =		mad.h
+CLEANFILES =		mad.h
+
+## From the libtool documentation on library versioning:
+##
+## CURRENT
+##      The most recent interface number that this library implements.
+##
+## REVISION
+##      The implementation number of the CURRENT interface.
+##
+## AGE
+##      The difference between the newest and oldest interfaces that this
+##      library implements.  In other words, the library implements all the
+##      interface numbers in the range from number `CURRENT - AGE' to
+##      `CURRENT'.
+##
+##    If two libraries have identical CURRENT and AGE numbers, then the
+## dynamic linker chooses the library with the greater REVISION number.
+##
+##   1. Start with version information of `0:0:0' for each libtool library.
+##
+##   2. Update the version information only immediately before a public
+##      release of your software.  More frequent updates are unnecessary,
+##      and only guarantee that the current interface number gets larger
+##      faster.
+##
+##   3. If the library source code has changed at all since the last
+##      update, then increment REVISION (`C:R:A' becomes `C:r+1:A').
+##
+##   4. If any interfaces have been added, removed, or changed since the
+##      last update, increment CURRENT, and set REVISION to 0.
+##
+##   5. If any interfaces have been added since the last public release,
+##      then increment AGE.
+##
+##   6. If any interfaces have been removed since the last public release,
+##      then set AGE to 0.
+
+version_current =	2
+version_revision =	1
+version_age =		2
+
+version_info =		$(version_current):$(version_revision):$(version_age)
+
+libmad_la_LDFLAGS =	-version-info $(version_info)
+
+mad.h: config.status config.h Makefile.am  \
+		$(srcdir)/COPYRIGHT $(srcdir)/mad.h.sed $(exported_headers)
+	(sed -e '1s|.*|/*|' -e '1b' -e '$$s|.*| */|' -e '$$b'  \
+		-e 's/^.*/ *&/' $(srcdir)/COPYRIGHT; echo;  \
+	echo "# ifdef __cplusplus";  \
+	echo 'extern "C" {';  \
+	echo "# endif"; echo;  \
+	if [ ".$(FPM)" != "." ]; then  \
+		echo ".$(FPM)" | sed -e 's|^\.-D|# define |'; echo;  \
+	fi;  \
+	sed -ne 's/^# *define  *\(HAVE_.*_ASM\).*/# define \1/p'  \
+		config.h; echo;  \
+	sed -ne 's/^# *define  *OPT_\(SPEED\|ACCURACY\).*/# define OPT_\1/p'  \
+		config.h; echo;  \
+	sed -ne 's/^# *define  *\(SIZEOF_.*\)/# define \1/p'  \
+		config.h; echo;  \
+	for header in $(exported_headers); do  \
+		echo;  \
+		sed -n -f $(srcdir)/mad.h.sed $(srcdir)/$$header;  \
+	done; echo;  \
+	echo "# ifdef __cplusplus";  \
+	echo '}';  \
+	echo "# endif") >$@
+
+libtool: $(LIBTOOL_DEPS)
+	$(SHELL) ./config.status --recheck
+
+.c.s:
+	$(COMPILE) -S $<
+
+again:
+	$(MAKE) clean
+	$(MAKE)
+
+.PHONY: again

lib/libmad/Makefile.in

@@ -0,0 +1,821 @@
+# Makefile.in generated by automake 1.8.2 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004  Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+
+SOURCES = $(libmad_la_SOURCES) $(EXTRA_libmad_la_SOURCES) $(minimad_SOURCES)
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+top_builddir = .
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
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+install_sh_DATA = $(install_sh) -c -m 644
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+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+host_triplet = @host@
+EXTRA_PROGRAMS = minimad$(EXEEXT)
+DIST_COMMON = README $(am__configure_deps) $(include_HEADERS) \
+	$(srcdir)/Makefile.am $(srcdir)/Makefile.in \
+	$(srcdir)/config.h.in $(srcdir)/libmad.list.in \
+	$(top_srcdir)/configure COPYING INSTALL TODO config.guess \
+	config.sub depcomp install-sh ltmain.sh missing mkinstalldirs
+subdir = .
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
+ configure.lineno configure.status.lineno
+mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
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+CONFIG_CLEAN_FILES = libmad.list
+am__installdirs = $(DESTDIR)$(libdir) $(DESTDIR)$(includedir)
+libLTLIBRARIES_INSTALL = $(INSTALL)
+LTLIBRARIES = $(lib_LTLIBRARIES)
+am__objects_1 =
+am__objects_2 = $(am__objects_1)
+am_libmad_la_OBJECTS = version.lo fixed.lo bit.lo timer.lo stream.lo \
+	frame.lo synth.lo decoder.lo layer12.lo layer3.lo huffman.lo \
+	$(am__objects_2) $(am__objects_1)
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+am_minimad_OBJECTS = minimad.$(OBJEXT)
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+am__depfiles_maybe = depfiles
+@AMDEP_TRUE@DEP_FILES = ./$(DEPDIR)/bit.Plo ./$(DEPDIR)/decoder.Plo \
+@AMDEP_TRUE@	./$(DEPDIR)/fixed.Plo ./$(DEPDIR)/frame.Plo \
+@AMDEP_TRUE@	./$(DEPDIR)/huffman.Plo ./$(DEPDIR)/layer12.Plo \
+@AMDEP_TRUE@	./$(DEPDIR)/layer3.Plo ./$(DEPDIR)/minimad.Po \
+@AMDEP_TRUE@	./$(DEPDIR)/stream.Plo ./$(DEPDIR)/synth.Plo \
+@AMDEP_TRUE@	./$(DEPDIR)/timer.Plo ./$(DEPDIR)/version.Plo
+CCASCOMPILE = $(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)
+LTCCASCOMPILE = $(LIBTOOL) --mode=compile $(CCAS) $(AM_CCASFLAGS) \
+	$(CCASFLAGS)
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) --mode=compile $(CC) $(DEFS) \
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+CCLD = $(CC)
+LINK = $(LIBTOOL) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(AM_LDFLAGS) $(LDFLAGS) -o $@
+SOURCES = $(libmad_la_SOURCES) $(EXTRA_libmad_la_SOURCES) \
+	$(minimad_SOURCES)
+DIST_SOURCES = $(libmad_la_SOURCES) $(EXTRA_libmad_la_SOURCES) \
+	$(minimad_SOURCES)
+RECURSIVE_TARGETS = all-recursive check-recursive dvi-recursive \
+	html-recursive info-recursive install-data-recursive \
+	install-exec-recursive install-info-recursive \
+	install-recursive installcheck-recursive installdirs-recursive \
+	pdf-recursive ps-recursive uninstall-info-recursive \
+	uninstall-recursive
+includeHEADERS_INSTALL = $(INSTALL_HEADER)
+HEADERS = $(include_HEADERS)
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+CTAGS = ctags
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+top_distdir = $(distdir)
+am__remove_distdir = \
+  { test ! -d $(distdir) \
+    || { find $(distdir) -type d ! -perm -200 -exec chmod u+w {} ';' \
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+DIST_ARCHIVES = $(distdir).tar.gz
+GZIP_ENV = --best
+distuninstallcheck_listfiles = find . -type f -print
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+install_sh = @install_sh@
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+target_alias = @target_alias@
+SUBDIRS = 
+DIST_SUBDIRS = msvc++
+lib_LTLIBRARIES = libmad.la
+include_HEADERS = mad.h
+minimad_SOURCES = minimad.c
+minimad_INCLUDES = 
+minimad_LDADD = libmad.la
+EXTRA_DIST = mad.h.sed  \
+			CHANGES COPYRIGHT CREDITS README TODO VERSION
+
+exported_headers = version.h fixed.h bit.h timer.h stream.h frame.h  \
+			synth.h decoder.h
+
+headers = $(exported_headers)  \
+			global.h layer12.h layer3.h huffman.h
+
+data_includes = D.dat imdct_s.dat qc_table.dat rq_table.dat  \
+			sf_table.dat
+
+libmad_la_SOURCES = version.c fixed.c bit.c timer.c stream.c frame.c  \
+			synth.c decoder.c layer12.c layer3.c huffman.c  \
+			$(headers) $(data_includes)
+
+EXTRA_libmad_la_SOURCES = imdct_l_arm.S #synth_mmx.S
+libmad_la_DEPENDENCIES = @ASO_OBJS@
+libmad_la_LIBADD = @ASO_OBJS@
+INCLUDES = $(FPM) $(ASO)
+BUILT_SOURCES = mad.h
+CLEANFILES = mad.h
+version_current = 2
+version_revision = 1
+version_age = 2
+version_info = $(version_current):$(version_revision):$(version_age)
+libmad_la_LDFLAGS = -version-info $(version_info)
+all: $(BUILT_SOURCES) config.h
+	$(MAKE) $(AM_MAKEFLAGS) all-recursive
+
+.SUFFIXES:
+.SUFFIXES: .S .c .lo .o .obj .s
+am--refresh:
+	@:
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      echo ' cd $(srcdir) && $(AUTOMAKE) --foreign '; \
+	      cd $(srcdir) && $(AUTOMAKE) --foreign  \
+		&& exit 0; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign  Makefile'; \
+	cd $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign  Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    echo ' $(SHELL) ./config.status'; \
+	    $(SHELL) ./config.status;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe);; \
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+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(srcdir) && $(AUTOCONF)
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(srcdir) && $(ACLOCAL) $(ACLOCAL_AMFLAGS)
+
+config.h: stamp-h1
+	@if test ! -f $@; then \
+	  rm -f stamp-h1; \
+	  $(MAKE) stamp-h1; \
+	else :; fi
+
+stamp-h1: $(srcdir)/config.h.in $(top_builddir)/config.status
+	@rm -f stamp-h1
+	cd $(top_builddir) && $(SHELL) ./config.status config.h
+$(srcdir)/config.h.in:  $(am__configure_deps) 
+	cd $(top_srcdir) && $(AUTOHEADER)
+	rm -f stamp-h1
+	touch $@
+
+distclean-hdr:
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+libmad.list: $(top_builddir)/config.status $(srcdir)/libmad.list.in
+	cd $(top_builddir) && $(SHELL) ./config.status $@
+install-libLTLIBRARIES: $(lib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	$(mkdir_p) $(DESTDIR)$(libdir)
+	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
+	  if test -f $$p; then \
+	    f="`echo $$p | sed -e 's|^.*/||'`"; \
+	    echo " $(LIBTOOL) --mode=install $(libLTLIBRARIES_INSTALL) $(INSTALL_STRIP_FLAG) $$p $(DESTDIR)$(libdir)/$$f"; \
+	    $(LIBTOOL) --mode=install $(libLTLIBRARIES_INSTALL) $(INSTALL_STRIP_FLAG) $$p $(DESTDIR)$(libdir)/$$f; \
+	  else :; fi; \
+	done
+
+uninstall-libLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
+	    p="`echo $$p | sed -e 's|^.*/||'`"; \
+	  echo " $(LIBTOOL) --mode=uninstall rm -f $(DESTDIR)$(libdir)/$$p"; \
+	  $(LIBTOOL) --mode=uninstall rm -f $(DESTDIR)$(libdir)/$$p; \
+	done
+
+clean-libLTLIBRARIES:
+	-test -z "$(lib_LTLIBRARIES)" || rm -f $(lib_LTLIBRARIES)
+	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" = "$$p" && dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libmad.la: $(libmad_la_OBJECTS) $(libmad_la_DEPENDENCIES) 
+	$(LINK) -rpath $(libdir) $(libmad_la_LDFLAGS) $(libmad_la_OBJECTS) $(libmad_la_LIBADD) $(LIBS)
+minimad$(EXEEXT): $(minimad_OBJECTS) $(minimad_DEPENDENCIES) 
+	@rm -f minimad$(EXEEXT)
+	$(LINK) $(minimad_LDFLAGS) $(minimad_OBJECTS) $(minimad_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bit.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/decoder.Plo@am__quote@
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/version.Plo@am__quote@
+
+.S.o:
+	$(CCASCOMPILE) -c $<
+
+.S.obj:
+	$(CCASCOMPILE) -c `$(CYGPATH_W) '$<'`
+
+.S.lo:
+	$(LTCCASCOMPILE) -c -o $@ $<
+
+.c.o:
+@am__fastdepCC_TRUE@	if $(COMPILE) -MT $@ -MD -MP -MF "$(DEPDIR)/$*.Tpo" -c -o $@ $<; \
+@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/$*.Tpo" "$(DEPDIR)/$*.Po"; else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	depfile='$(DEPDIR)/$*.Po' tmpdepfile='$(DEPDIR)/$*.TPo' @AMDEPBACKSLASH@
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+@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/$*.Tpo" "$(DEPDIR)/$*.Po"; else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	depfile='$(DEPDIR)/$*.Po' tmpdepfile='$(DEPDIR)/$*.TPo' @AMDEPBACKSLASH@
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+@am__fastdepCC_FALSE@	$(COMPILE) -c `$(CYGPATH_W) '$<'`
+
+.c.lo:
+@am__fastdepCC_TRUE@	if $(LTCOMPILE) -MT $@ -MD -MP -MF "$(DEPDIR)/$*.Tpo" -c -o $@ $<; \
+@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/$*.Tpo" "$(DEPDIR)/$*.Plo"; else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	depfile='$(DEPDIR)/$*.Plo' tmpdepfile='$(DEPDIR)/$*.TPlo' @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(LTCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+distclean-libtool:
+	-rm -f libtool
+uninstall-info-am:
+install-includeHEADERS: $(include_HEADERS)
+	@$(NORMAL_INSTALL)
+	$(mkdir_p) $(DESTDIR)$(includedir)
+	@list='$(include_HEADERS)'; for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  f="`echo $$p | sed -e 's|^.*/||'`"; \
+	  echo " $(includeHEADERS_INSTALL) $$d$$p $(DESTDIR)$(includedir)/$$f"; \
+	  $(includeHEADERS_INSTALL) $$d$$p $(DESTDIR)$(includedir)/$$f; \
+	done
+
+uninstall-includeHEADERS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(include_HEADERS)'; for p in $$list; do \
+	  f="`echo $$p | sed -e 's|^.*/||'`"; \
+	  echo " rm -f $(DESTDIR)$(includedir)/$$f"; \
+	  rm -f $(DESTDIR)$(includedir)/$$f; \
+	done
+
+# This directory's subdirectories are mostly independent; you can cd
+# into them and run `make' without going through this Makefile.
+# To change the values of `make' variables: instead of editing Makefiles,
+# (1) if the variable is set in `config.status', edit `config.status'
+#     (which will cause the Makefiles to be regenerated when you run `make');
+# (2) otherwise, pass the desired values on the `make' command line.
+$(RECURSIVE_TARGETS):
+	@set fnord $$MAKEFLAGS; amf=$$2; \
+	dot_seen=no; \
+	target=`echo $@ | sed s/-recursive//`; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	   || case "$$amf" in *=*) exit 1;; *k*) fail=yes;; *) exit 1;; esac; \
+	done; \
+	if test "$$dot_seen" = "no"; then \
+	  $(MAKE) $(AM_MAKEFLAGS) "$$target-am" || exit 1; \
+	fi; test -z "$$fail"
+
+mostlyclean-recursive clean-recursive distclean-recursive \
+maintainer-clean-recursive:
+	@set fnord $$MAKEFLAGS; amf=$$2; \
+	dot_seen=no; \
+	case "$@" in \
+	  distclean-* | maintainer-clean-*) list='$(DIST_SUBDIRS)' ;; \
+	  *) list='$(SUBDIRS)' ;; \
+	esac; \
+	rev=''; for subdir in $$list; do \
+	  if test "$$subdir" = "."; then :; else \
+	    rev="$$subdir $$rev"; \
+	  fi; \
+	done; \
+	rev="$$rev ."; \
+	target=`echo $@ | sed s/-recursive//`; \
+	for subdir in $$rev; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	   || case "$$amf" in *=*) exit 1;; *k*) fail=yes;; *) exit 1;; esac; \
+	done && test -z "$$fail"
+tags-recursive:
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  test "$$subdir" = . || (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) tags); \
+	done
+ctags-recursive:
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  test "$$subdir" = . || (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) ctags); \
+	done
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '    { files[$$0] = 1; } \
+	       END { for (i in files) print i; }'`; \
+	mkid -fID $$unique
+tags: TAGS
+
+TAGS: tags-recursive $(HEADERS) $(SOURCES) config.h.in $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	tags=; \
+	here=`pwd`; \
+	if (etags --etags-include --version) >/dev/null 2>&1; then \
+	  include_option=--etags-include; \
+	else \
+	  include_option=--include; \
+	fi; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test -f $$subdir/TAGS && \
+	      tags="$$tags $$include_option=$$here/$$subdir/TAGS"; \
+	  fi; \
+	done; \
+	list='$(SOURCES) $(HEADERS) config.h.in $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '    { files[$$0] = 1; } \
+	       END { for (i in files) print i; }'`; \
+	test -z "$(ETAGS_ARGS)$$tags$$unique" \
+	  || $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	     $$tags $$unique
+ctags: CTAGS
+CTAGS: ctags-recursive $(HEADERS) $(SOURCES) config.h.in $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	tags=; \
+	here=`pwd`; \
+	list='$(SOURCES) $(HEADERS) config.h.in $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '    { files[$$0] = 1; } \
+	       END { for (i in files) print i; }'`; \
+	test -z "$(CTAGS_ARGS)$$tags$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$tags $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && cd $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	$(am__remove_distdir)
+	mkdir $(distdir)
+	$(mkdir_p) $(distdir)/.
+	@srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's|.|.|g'`; \
+	list='$(DISTFILES)'; for file in $$list; do \
+	  case $$file in \
+	    $(srcdir)/*) file=`echo "$$file" | sed "s|^$$srcdirstrip/||"`;; \
+	    $(top_srcdir)/*) file=`echo "$$file" | sed "s|^$$topsrcdirstrip/|$(top_builddir)/|"`;; \
+	  esac; \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+	  if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+	    dir="/$$dir"; \
+	    $(mkdir_p) "$(distdir)$$dir"; \
+	  else \
+	    dir=''; \
+	  fi; \
+	  if test -d $$d/$$file; then \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+	    fi; \
+	    cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+	  else \
+	    test -f $(distdir)/$$file \
+	    || cp -p $$d/$$file $(distdir)/$$file \
+	    || exit 1; \
+	  fi; \
+	done
+	list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test -d "$(distdir)/$$subdir" \
+	    || mkdir "$(distdir)/$$subdir" \
+	    || exit 1; \
+	    (cd $$subdir && \
+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="../$(top_distdir)" \
+	        distdir="../$(distdir)/$$subdir" \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
+	-find $(distdir) -type d ! -perm -777 -exec chmod a+rwx {} \; -o \
+	  ! -type d ! -perm -444 -links 1 -exec chmod a+r {} \; -o \
+	  ! -type d ! -perm -400 -exec chmod a+r {} \; -o \
+	  ! -type d ! -perm -444 -exec $(SHELL) $(install_sh) -c -m a+r {} {} \; \
+	|| chmod -R a+r $(distdir)
+dist-gzip: distdir
+	$(AMTAR) chof - $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
+	$(am__remove_distdir)
+
+dist-bzip2: distdir
+	$(AMTAR) chof - $(distdir) | bzip2 -9 -c >$(distdir).tar.bz2
+	$(am__remove_distdir)
+
+dist-tarZ: distdir
+	$(AMTAR) chof - $(distdir) | compress -c >$(distdir).tar.Z
+	$(am__remove_distdir)
+
+dist-shar: distdir
+	shar $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).shar.gz
+	$(am__remove_distdir)
+
+dist-zip: distdir
+	-rm -f $(distdir).zip
+	zip -rq $(distdir).zip $(distdir)
+	$(am__remove_distdir)
+
+dist dist-all: distdir
+	$(AMTAR) chof - $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
+	$(am__remove_distdir)
+
+# This target untars the dist file and tries a VPATH configuration.  Then
+# it guarantees that the distribution is self-contained by making another
+# tarfile.
+distcheck: dist
+	case '$(DIST_ARCHIVES)' in \
+	*.tar.gz*) \
+	  GZIP=$(GZIP_ENV) gunzip -c $(distdir).tar.gz | $(AMTAR) xf - ;;\
+	*.tar.bz2*) \
+	  bunzip2 -c $(distdir).tar.bz2 | $(AMTAR) xf - ;;\
+	*.tar.Z*) \
+	  uncompress -c $(distdir).tar.Z | $(AMTAR) xf - ;;\
+	*.shar.gz*) \
+	  GZIP=$(GZIP_ENV) gunzip -c $(distdir).tar.gz | unshar ;;\
+	*.zip*) \
+	  unzip $(distdir).zip ;;\
+	esac
+	chmod -R a-w $(distdir); chmod a+w $(distdir)
+	mkdir $(distdir)/_build
+	mkdir $(distdir)/_inst
+	chmod a-w $(distdir)
+	dc_install_base=`$(am__cd) $(distdir)/_inst && pwd | sed -e 's,^[^:\\/]:[\\/],/,'` \
+	  && dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
+	  && cd $(distdir)/_build \
+	  && ../configure --srcdir=.. --prefix="$$dc_install_base" \
+	    $(DISTCHECK_CONFIGURE_FLAGS) \
+	  && $(MAKE) $(AM_MAKEFLAGS) \
+	  && $(MAKE) $(AM_MAKEFLAGS) dvi \
+	  && $(MAKE) $(AM_MAKEFLAGS) check \
+	  && $(MAKE) $(AM_MAKEFLAGS) install \
+	  && $(MAKE) $(AM_MAKEFLAGS) installcheck \
+	  && $(MAKE) $(AM_MAKEFLAGS) uninstall \
+	  && $(MAKE) $(AM_MAKEFLAGS) distuninstallcheck_dir="$$dc_install_base" \
+	        distuninstallcheck \
+	  && chmod -R a-w "$$dc_install_base" \
+	  && ({ \
+	       (cd ../.. && $(mkdir_p) "$$dc_destdir") \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" install \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" uninstall \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" \
+	            distuninstallcheck_dir="$$dc_destdir" distuninstallcheck; \
+	      } || { rm -rf "$$dc_destdir"; exit 1; }) \
+	  && rm -rf "$$dc_destdir" \
+	  && $(MAKE) $(AM_MAKEFLAGS) dist \
+	  && rm -rf $(DIST_ARCHIVES) \
+	  && $(MAKE) $(AM_MAKEFLAGS) distcleancheck
+	$(am__remove_distdir)
+	@(echo "$(distdir) archives ready for distribution: "; \
+	  list='$(DIST_ARCHIVES)'; for i in $$list; do echo $$i; done) | \
+	  sed -e '1{h;s/./=/g;p;x;}' -e '$${p;x;}'
+distuninstallcheck:
+	@cd $(distuninstallcheck_dir) \
+	&& test `$(distuninstallcheck_listfiles) | wc -l` -le 1 \
+	   || { echo "ERROR: files left after uninstall:" ; \
+	        if test -n "$(DESTDIR)"; then \
+	          echo "  (check DESTDIR support)"; \
+	        fi ; \
+	        $(distuninstallcheck_listfiles) ; \
+	        exit 1; } >&2
+distcleancheck: distclean
+	@if test '$(srcdir)' = . ; then \
+	  echo "ERROR: distcleancheck can only run from a VPATH build" ; \
+	  exit 1 ; \
+	fi
+	@test `$(distcleancheck_listfiles) | wc -l` -eq 0 \
+	  || { echo "ERROR: files left in build directory after distclean:" ; \
+	       $(distcleancheck_listfiles) ; \
+	       exit 1; } >&2
+check-am: all-am
+check: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) check-recursive
+all-am: Makefile $(LTLIBRARIES) $(HEADERS) config.h
+installdirs: installdirs-recursive
+installdirs-am:
+	$(mkdir_p) $(DESTDIR)$(libdir) $(DESTDIR)$(includedir)
+install: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+	-test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
+clean: clean-recursive
+
+clean-am: clean-generic clean-libLTLIBRARIES clean-libtool \
+	mostlyclean-am
+
+distclean: distclean-recursive
+	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-hdr distclean-libtool distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+html: html-recursive
+
+info: info-recursive
+
+info-am:
+
+install-data-am: install-includeHEADERS
+
+install-exec-am: install-libLTLIBRARIES
+
+install-info: install-info-recursive
+
+install-man:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-recursive
+	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
+	-rm -rf $(top_srcdir)/autom4te.cache
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-recursive
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-recursive
+
+pdf-am:
+
+ps: ps-recursive
+
+ps-am:
+
+uninstall-am: uninstall-includeHEADERS uninstall-info-am \
+	uninstall-libLTLIBRARIES
+
+uninstall-info: uninstall-info-recursive
+
+.PHONY: $(RECURSIVE_TARGETS) CTAGS GTAGS all all-am am--refresh check \
+	check-am clean clean-generic clean-libLTLIBRARIES \
+	clean-libtool clean-recursive ctags ctags-recursive dist \
+	dist-all dist-bzip2 dist-gzip dist-shar dist-tarZ dist-zip \
+	distcheck distclean distclean-compile distclean-generic \
+	distclean-hdr distclean-libtool distclean-recursive \
+	distclean-tags distcleancheck distdir distuninstallcheck dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-exec install-exec-am \
+	install-includeHEADERS install-info install-info-am \
+	install-libLTLIBRARIES install-man install-strip installcheck \
+	installcheck-am installdirs installdirs-am maintainer-clean \
+	maintainer-clean-generic maintainer-clean-recursive \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool mostlyclean-recursive pdf pdf-am ps ps-am \
+	tags tags-recursive uninstall uninstall-am \
+	uninstall-includeHEADERS uninstall-info-am \
+	uninstall-libLTLIBRARIES
+
+
+mad.h: config.status config.h Makefile.am  \
+		$(srcdir)/COPYRIGHT $(srcdir)/mad.h.sed $(exported_headers)
+	(sed -e '1s|.*|/*|' -e '1b' -e '$$s|.*| */|' -e '$$b'  \
+		-e 's/^.*/ *&/' $(srcdir)/COPYRIGHT; echo;  \
+	echo "# ifdef __cplusplus";  \
+	echo 'extern "C" {';  \
+	echo "# endif"; echo;  \
+	if [ ".$(FPM)" != "." ]; then  \
+		echo ".$(FPM)" | sed -e 's|^\.-D|# define |'; echo;  \
+	fi;  \
+	sed -ne 's/^# *define  *\(HAVE_.*_ASM\).*/# define \1/p'  \
+		config.h; echo;  \
+	sed -ne 's/^# *define  *OPT_\(SPEED\|ACCURACY\).*/# define OPT_\1/p'  \
+		config.h; echo;  \
+	sed -ne 's/^# *define  *\(SIZEOF_.*\)/# define \1/p'  \
+		config.h; echo;  \
+	for header in $(exported_headers); do  \
+		echo;  \
+		sed -n -f $(srcdir)/mad.h.sed $(srcdir)/$$header;  \
+	done; echo;  \
+	echo "# ifdef __cplusplus";  \
+	echo '}';  \
+	echo "# endif") >$@
+
+libtool: $(LIBTOOL_DEPS)
+	$(SHELL) ./config.status --recheck
+
+.c.s:
+	$(COMPILE) -S $<
+
+again:
+	$(MAKE) clean
+	$(MAKE)
+
+.PHONY: again
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

lib/libmad/README

@@ -0,0 +1,241 @@
+
+ libmad - MPEG audio decoder library
+ Copyright (C) 2000-2004 Underbit Technologies, Inc.
+
+ $Id: README,v 1.4 2004/01/23 09:41:32 rob Exp $
+
+===============================================================================
+
+INTRODUCTION
+
+  MAD (libmad) is a high-quality MPEG audio decoder. It currently supports
+  MPEG-1 and the MPEG-2 extension to Lower Sampling Frequencies, as well as
+  the so-called MPEG 2.5 format. All three audio layers (Layer I, Layer II,
+  and Layer III a.k.a. MP3) are fully implemented.
+
+  MAD does not yet support MPEG-2 multichannel audio (although it should be
+  backward compatible with such streams) nor does it currently support AAC.
+
+  MAD has the following special features:
+
+    - 24-bit PCM output
+    - 100% fixed-point (integer) computation
+    - completely new implementation based on the ISO/IEC standards
+    - distributed under the terms of the GNU General Public License (GPL)
+
+  Because MAD provides full 24-bit PCM output, applications using MAD are
+  able to produce high quality audio. Even when the output device supports
+  only 16-bit PCM, applications can use the extra resolution to increase the
+  audible dynamic range through the use of dithering or noise shaping.
+
+  Because MAD uses integer computation rather than floating point, it is
+  well suited for architectures without a floating point unit. All
+  calculations are performed with a 32-bit fixed-point integer
+  representation.
+
+  Because MAD is a new implementation of the ISO/IEC standards, it is
+  unencumbered by the errors of other implementations. MAD is NOT a
+  derivation of the ISO reference source or any other code. Considerable
+  effort has been expended to ensure a correct implementation, even in cases
+  where the standards are ambiguous or misleading.
+
+  Because MAD is distributed under the terms of the GPL, its redistribution
+  is not generally restricted, so long as the terms of the GPL are followed.
+  This means MAD can be incorporated into other software as long as that
+  software is also distributed under the GPL. (Should this be undesirable,
+  alternate arrangements may be possible by contacting Underbit.)
+
+===============================================================================
+
+ABOUT THE CODE
+
+  The code is optimized and performs very well, although specific
+  improvements can still be made. The output from the decoder library
+  consists of 32-bit signed linear fixed-point values that can be easily
+  scaled for any size PCM output, up to 24 bits per sample.
+
+  The API for libmad can be found in the `mad.h' header file. Note that this
+  file is automatically generated, and will not exist until after you have
+  built the library.
+
+  There are two APIs available, one high-level, and the other low-level.
+  With the low-level API, each step of the decoding process must be handled
+  explicitly, offering the greatest amount of control. With the high-level
+  API, after callbacks are configured, a single routine will decode an
+  entire bitstream.
+
+  The high-level API may either be used synchronously or asynchronously. If
+  used asynchronously, decoding will occur in a separate process.
+  Communication is possible with the decoding process by passing control
+  messages.
+
+  The file `minimad.c' contains an example usage of the libmad API that
+  shows only the bare minimum required to implement a useful decoder. It
+  expects a regular file to be redirected to standard input, and it sends
+  decoded 16-bit signed little-endian PCM samples to standard output. If a
+  decoding error occurs, it is reported to standard error and decoding
+  continues. Note that the scale() routine in this code is only provided as
+  an example; it rounds MAD's high-resolution samples down to 16 bits, but
+  does not perform any dithering or noise shaping. It is therefore not
+  recommended to use this routine as-is in your own code if sound quality is
+  important.
+
+Integer Performance
+
+  To get the best possible performance, it is recommended that an assembly
+  version of the fixed-point multiply and related routines be selected.
+  Several such assembly routines have been written for various CPUs.
+
+  If an assembly version is not available, a fast approximation version will
+  be used. This will result in reduced accuracy of the decoder.
+
+  Alternatively, if 64-bit integers are supported as a datatype by the
+  compiler, another version can be used that is much more accurate.
+  However, using an assembly version is generally much faster and just as
+  accurate.
+
+  More information can be gathered from the `fixed.h' header file.
+
+  MAD's CPU-intensive subband synthesis routine can be further optimized at
+  the expense of a slight loss in output accuracy due to a modified method
+  for fixed-point multiplication with a small windowing constant. While this
+  is helpful for performance and the output accuracy loss is generally
+  undetectable, it is disabled by default and must be explicitly enabled.
+
+  Under some architectures, other special optimizations may also be
+  available.
+
+Audio Quality
+
+  The output from MAD has been found to satisfy the ISO/IEC 11172-4
+  computational accuracy requirements for compliance. In most
+  configurations, MAD is a Full Layer III ISO/IEC 11172-3 audio decoder as
+  defined by the standard.
+
+  When the approximation version of the fixed-point multiply is used, MAD is
+  a limited accuracy ISO/IEC 11172-3 audio decoder as defined by the
+  standard.
+
+  MAD can alternatively be configured to produce output with less or more
+  accuracy than the default, as a tradeoff with performance.
+
+  MAD produces output samples with a precision greater than 24 bits. Because
+  most output formats use fewer bits, typically 16, it is recommended that a
+  dithering algorithm be used (rather than rounding or truncating) to obtain
+  the highest quality audio. However, dithering may unfavorably affect an
+  analytic examination of the output (such as compliance testing); you may
+  therefore wish to use rounding in this case instead.
+
+Portability Issues
+
+  GCC is preferred to compile the code, but other compilers may also work.
+  The assembly code in `fixed.h' depends on the inline assembly features of
+  your compiler. If you're not using GCC or MSVC++, you can either write
+  your own assembly macros or use the default (low quality output) version.
+
+  The union initialization of `huffman.c' may not be portable to all
+  platforms when GCC is not used.
+
+  The code should not be sensitive to word sizes or byte ordering, however
+  it does assume A % B has the same sign as A.
+
+===============================================================================
+
+BUILDING AND INSTALLING
+
+Windows Platforms
+
+  MAD can be built under Windows using either MSVC++ or Cygwin. A MSVC++
+  project file can be found under the `msvc++' subdirectory.
+
+  To build libmad using Cygwin, you will first need to install the Cygwin
+  tools:
+
+      http://www.cygwin.com/
+
+  You may then proceed with the following POSIX instructions within the
+  Cygwin shell.
+
+  Note that by default Cygwin will build a library that depends on the
+  Cygwin DLL. You can use MinGW to build a library that does not depend on
+  the Cygwin DLL. To do so, give the option --host=mingw32 to `configure'.
+
+POSIX Platforms (including Cygwin)
+
+  The code is distributed with a `configure' script that will generate for
+  you a `Makefile' and a `config.h' for your platform. See the file
+  `INSTALL' for generic instructions.
+
+  The specific options you may want to give `configure' are:
+
+      --enable-speed            optimize for speed over accuracy
+
+      --enable-accuracy         optimize for accuracy over speed
+
+      --disable-debugging       do not compile with debugging support, and
+                                use more optimizations
+
+      --disable-shared          do not build a shared library
+
+  Note that you need not specify one of --enable-speed or --enable-accuracy;
+  in its default configuration, MAD is optimized for both. You should only
+  use one of these options if you wish to compromise speed or accuracy for
+  the other.
+
+  By default the package will build a shared library if possible for your
+  platform. If you want only a static library, use --disable-shared.
+
+  It is not normally necessary to use the following options, but you may
+  fine-tune the configuration with them if desired:
+
+      --enable-fpm=ARCH         use the ARCH-specific version of the
+                                fixed-point math assembly routines
+                                (current options are: intel, arm, mips,
+                                sparc, ppc; also allowed are: 64bit, approx)
+
+      --enable-sso              use the subband synthesis optimization,
+                                with reduced accuracy
+
+      --disable-aso             do not use certain architecture-specific
+                                optimizations
+
+  By default an appropriate fixed-point assembly routine will be selected
+  for the configured host type, if it can be determined. Thus if you are
+  cross-compiling for another architecture, you should be sure either to
+  give `configure' a host type argument (--host) or to use an explicit
+  --enable-fpm option.
+
+  If an appropriate assembly routine cannot be determined, the default
+  approximation version will be used. In this case, use of an alternate
+  --enable-fpm is highly recommended.
+
+Experimenting and Developing
+
+  Further options for `configure' that may be useful to developers and
+  experimenters are:
+
+      --enable-debugging        enable diagnostic debugging support and
+                                debugging symbols
+
+      --enable-profiling        generate `gprof' profiling code
+
+      --enable-experimental     enable code using the EXPERIMENTAL
+                                preprocessor define
+
+===============================================================================
+
+COPYRIGHT
+
+  Please read the `COPYRIGHT' file for copyright and warranty information.
+  Also, the file `COPYING' contains the full text of the GNU GPL.
+
+  Send inquiries, comments, bug reports, suggestions, patches, etc. to:
+
+      Underbit Technologies, Inc. <support@underbit.com>
+
+  See also the MAD home page on the Web:
+
+      http://www.underbit.com/products/mad/
+
+===============================================================================
+

lib/libmad/TODO

@@ -0,0 +1,69 @@
+
+ libmad - MPEG audio decoder library
+ Copyright (C) 2000-2004 Underbit Technologies, Inc.
+
+ $Id: TODO,v 1.3 2004/02/05 09:02:39 rob Exp $
+
+===============================================================================
+
+libmad:
+  - more API layers (buffering, PCM samples, dithering, etc.)
+  - x86 performance optimization compiler flags
+  - function documentation, general docs
+  - finish async API
+  - parse system streams?
+  - MPEG-2 MC, AAC?
+  - logarithmic multiplication?
+  - multiple frame decoding for better locality of reference?
+  - frame serial numbers, Layer III frame continuity checks
+
+fixed.h:
+  - experiment with FPM_INTEL:
+
+# if 1
+#    define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result;  \
+       asm ("shrl %3,%1\n\t"  \
+	    "shll %4,%2\n\t"  \
+	    "orl %2,%1"  \
+	    : "=rm" (__result)  \
+	    : "0" (lo), "r" (hi),  \
+	      "I" (MAD_F_SCALEBITS), "I" (32 - MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+# else
+#    define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed64hi_t __hi_;  \
+       mad_fixed64lo_t __lo_;  \
+       mad_fixed_t __result;  \
+       asm ("sall %2,%1"  \
+	    : "=r" (__hi_)  \
+	    : "0" (hi), "I" (32 - MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       asm ("shrl %2,%1"  \
+	    : "=r" (__lo_)  \
+	    : "0" (lo), "I" (MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       asm ("orl %1,%2"  \
+	    : "=rm" (__result)  \
+	    : "r" (__hi_), "0" (__lo_)  \
+	    : "cc");  \
+       __result;  \
+    })
+# endif
+
+libmad Layer I:
+  - check frame length sanity
+
+libmad Layer II:
+  - check frame length sanity
+
+libmad Layer III:
+  - circular buffer
+  - optimize zero_part from Huffman decoding throughout
+  - MPEG 2.5 8000 Hz sf bands? mixed blocks?
+  - stereo->mono conversion optimization?
+  - enable frame-at-a-time decoding
+  - improve portability of huffman.c
+

lib/libmad/VERSION

@@ -0,0 +1,7 @@
+0.15.1b
+configure.ac:24
+version.h:25-28
+msvc++/config.h:99,105,120
+msvc++/mad.h:41-44
+
+Makefile.am:98-100

lib/libmad/bit.c

@@ -0,0 +1,237 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: bit.c,v 1.12 2004/01/23 09:41:32 rob Exp $
+ */
+
+# ifdef HAVE_CONFIG_H
+#  include "config.h"
+# endif
+
+# include "global.h"
+
+# ifdef HAVE_LIMITS_H
+#  include <limits.h>
+# else
+#  define CHAR_BIT  8
+# endif
+
+# include "bit.h"
+
+/*
+ * This is the lookup table for computing the CRC-check word.
+ * As described in section 2.4.3.1 and depicted in Figure A.9
+ * of ISO/IEC 11172-3, the generator polynomial is:
+ *
+ * G(X) = X^16 + X^15 + X^2 + 1
+ */
+static
+unsigned short const crc_table[256] = {
+  0x0000, 0x8005, 0x800f, 0x000a, 0x801b, 0x001e, 0x0014, 0x8011,
+  0x8033, 0x0036, 0x003c, 0x8039, 0x0028, 0x802d, 0x8027, 0x0022,
+  0x8063, 0x0066, 0x006c, 0x8069, 0x0078, 0x807d, 0x8077, 0x0072,
+  0x0050, 0x8055, 0x805f, 0x005a, 0x804b, 0x004e, 0x0044, 0x8041,
+  0x80c3, 0x00c6, 0x00cc, 0x80c9, 0x00d8, 0x80dd, 0x80d7, 0x00d2,
+  0x00f0, 0x80f5, 0x80ff, 0x00fa, 0x80eb, 0x00ee, 0x00e4, 0x80e1,
+  0x00a0, 0x80a5, 0x80af, 0x00aa, 0x80bb, 0x00be, 0x00b4, 0x80b1,
+  0x8093, 0x0096, 0x009c, 0x8099, 0x0088, 0x808d, 0x8087, 0x0082,
+
+  0x8183, 0x0186, 0x018c, 0x8189, 0x0198, 0x819d, 0x8197, 0x0192,
+  0x01b0, 0x81b5, 0x81bf, 0x01ba, 0x81ab, 0x01ae, 0x01a4, 0x81a1,
+  0x01e0, 0x81e5, 0x81ef, 0x01ea, 0x81fb, 0x01fe, 0x01f4, 0x81f1,
+  0x81d3, 0x01d6, 0x01dc, 0x81d9, 0x01c8, 0x81cd, 0x81c7, 0x01c2,
+  0x0140, 0x8145, 0x814f, 0x014a, 0x815b, 0x015e, 0x0154, 0x8151,
+  0x8173, 0x0176, 0x017c, 0x8179, 0x0168, 0x816d, 0x8167, 0x0162,
+  0x8123, 0x0126, 0x012c, 0x8129, 0x0138, 0x813d, 0x8137, 0x0132,
+  0x0110, 0x8115, 0x811f, 0x011a, 0x810b, 0x010e, 0x0104, 0x8101,
+
+  0x8303, 0x0306, 0x030c, 0x8309, 0x0318, 0x831d, 0x8317, 0x0312,
+  0x0330, 0x8335, 0x833f, 0x033a, 0x832b, 0x032e, 0x0324, 0x8321,
+  0x0360, 0x8365, 0x836f, 0x036a, 0x837b, 0x037e, 0x0374, 0x8371,
+  0x8353, 0x0356, 0x035c, 0x8359, 0x0348, 0x834d, 0x8347, 0x0342,
+  0x03c0, 0x83c5, 0x83cf, 0x03ca, 0x83db, 0x03de, 0x03d4, 0x83d1,
+  0x83f3, 0x03f6, 0x03fc, 0x83f9, 0x03e8, 0x83ed, 0x83e7, 0x03e2,
+  0x83a3, 0x03a6, 0x03ac, 0x83a9, 0x03b8, 0x83bd, 0x83b7, 0x03b2,
+  0x0390, 0x8395, 0x839f, 0x039a, 0x838b, 0x038e, 0x0384, 0x8381,
+
+  0x0280, 0x8285, 0x828f, 0x028a, 0x829b, 0x029e, 0x0294, 0x8291,
+  0x82b3, 0x02b6, 0x02bc, 0x82b9, 0x02a8, 0x82ad, 0x82a7, 0x02a2,
+  0x82e3, 0x02e6, 0x02ec, 0x82e9, 0x02f8, 0x82fd, 0x82f7, 0x02f2,
+  0x02d0, 0x82d5, 0x82df, 0x02da, 0x82cb, 0x02ce, 0x02c4, 0x82c1,
+  0x8243, 0x0246, 0x024c, 0x8249, 0x0258, 0x825d, 0x8257, 0x0252,
+  0x0270, 0x8275, 0x827f, 0x027a, 0x826b, 0x026e, 0x0264, 0x8261,
+  0x0220, 0x8225, 0x822f, 0x022a, 0x823b, 0x023e, 0x0234, 0x8231,
+  0x8213, 0x0216, 0x021c, 0x8219, 0x0208, 0x820d, 0x8207, 0x0202
+};
+
+# define CRC_POLY  0x8005
+
+/*
+ * NAME:	bit->init()
+ * DESCRIPTION:	initialize bit pointer struct
+ */
+void mad_bit_init(struct mad_bitptr *bitptr, unsigned char const *byte)
+{
+  bitptr->byte  = byte;
+  bitptr->cache = 0;
+  bitptr->left  = CHAR_BIT;
+}
+
+/*
+ * NAME:	bit->length()
+ * DESCRIPTION:	return number of bits between start and end points
+ */
+unsigned int mad_bit_length(struct mad_bitptr const *begin,
+			    struct mad_bitptr const *end)
+{
+  return begin->left +
+    CHAR_BIT * (end->byte - (begin->byte + 1)) + (CHAR_BIT - end->left);
+}
+
+/*
+ * NAME:	bit->nextbyte()
+ * DESCRIPTION:	return pointer to next unprocessed byte
+ */
+unsigned char const *mad_bit_nextbyte(struct mad_bitptr const *bitptr)
+{
+  return bitptr->left == CHAR_BIT ? bitptr->byte : bitptr->byte + 1;
+}
+
+/*
+ * NAME:	bit->skip()
+ * DESCRIPTION:	advance bit pointer
+ */
+void mad_bit_skip(struct mad_bitptr *bitptr, unsigned int len)
+{
+  bitptr->byte += len / CHAR_BIT;
+  bitptr->left -= len % CHAR_BIT;
+
+  if (bitptr->left > CHAR_BIT) {
+    bitptr->byte++;
+    bitptr->left += CHAR_BIT;
+  }
+
+  if (bitptr->left < CHAR_BIT)
+    bitptr->cache = *bitptr->byte;
+}
+
+/*
+ * NAME:	bit->read()
+ * DESCRIPTION:	read an arbitrary number of bits and return their UIMSBF value
+ */
+unsigned long mad_bit_read(struct mad_bitptr *bitptr, unsigned int len)
+{
+  register unsigned long value;
+
+  if (bitptr->left == CHAR_BIT)
+    bitptr->cache = *bitptr->byte;
+
+  if (len < bitptr->left) {
+    value = (bitptr->cache & ((1 << bitptr->left) - 1)) >>
+      (bitptr->left - len);
+    bitptr->left -= len;
+
+    return value;
+  }
+
+  /* remaining bits in current byte */
+
+  value = bitptr->cache & ((1 << bitptr->left) - 1);
+  len  -= bitptr->left;
+
+  bitptr->byte++;
+  bitptr->left = CHAR_BIT;
+
+  /* more bytes */
+
+  while (len >= CHAR_BIT) {
+    value = (value << CHAR_BIT) | *bitptr->byte++;
+    len  -= CHAR_BIT;
+  }
+
+  if (len > 0) {
+    bitptr->cache = *bitptr->byte;
+
+    value = (value << len) | (bitptr->cache >> (CHAR_BIT - len));
+    bitptr->left -= len;
+  }
+
+  return value;
+}
+
+# if 0
+/*
+ * NAME:	bit->write()
+ * DESCRIPTION:	write an arbitrary number of bits
+ */
+void mad_bit_write(struct mad_bitptr *bitptr, unsigned int len,
+		   unsigned long value)
+{
+  unsigned char *ptr;
+
+  ptr = (unsigned char *) bitptr->byte;
+
+  /* ... */
+}
+# endif
+
+/*
+ * NAME:	bit->crc()
+ * DESCRIPTION:	compute CRC-check word
+ */
+unsigned short mad_bit_crc(struct mad_bitptr bitptr, unsigned int len,
+			   unsigned short init)
+{
+  register unsigned int crc;
+
+  for (crc = init; len >= 32; len -= 32) {
+    register unsigned long data;
+
+    data = mad_bit_read(&bitptr, 32);
+
+    crc = (crc << 8) ^ crc_table[((crc >> 8) ^ (data >> 24)) & 0xff];
+    crc = (crc << 8) ^ crc_table[((crc >> 8) ^ (data >> 16)) & 0xff];
+    crc = (crc << 8) ^ crc_table[((crc >> 8) ^ (data >>  8)) & 0xff];
+    crc = (crc << 8) ^ crc_table[((crc >> 8) ^ (data >>  0)) & 0xff];
+  }
+
+  switch (len / 8) {
+  case 3: crc = (crc << 8) ^
+	    crc_table[((crc >> 8) ^ mad_bit_read(&bitptr, 8)) & 0xff];
+  case 2: crc = (crc << 8) ^
+	    crc_table[((crc >> 8) ^ mad_bit_read(&bitptr, 8)) & 0xff];
+  case 1: crc = (crc << 8) ^
+	    crc_table[((crc >> 8) ^ mad_bit_read(&bitptr, 8)) & 0xff];
+
+  len %= 8;
+
+  case 0: break;
+  }
+
+  while (len--) {
+    register unsigned int msb;
+
+    msb = mad_bit_read(&bitptr, 1) ^ (crc >> 15);
+
+    crc <<= 1;
+    if (msb & 1)
+      crc ^= CRC_POLY;
+  }
+
+  return crc & 0xffff;
+}

lib/libmad/bit.h

@@ -0,0 +1,47 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: bit.h,v 1.12 2004/01/23 09:41:32 rob Exp $
+ */
+
+# ifndef LIBMAD_BIT_H
+# define LIBMAD_BIT_H
+
+struct mad_bitptr {
+  unsigned char const *byte;
+  unsigned short cache;
+  unsigned short left;
+};
+
+void mad_bit_init(struct mad_bitptr *, unsigned char const *);
+
+# define mad_bit_finish(bitptr)		/* nothing */
+
+unsigned int mad_bit_length(struct mad_bitptr const *,
+			    struct mad_bitptr const *);
+
+# define mad_bit_bitsleft(bitptr)  ((bitptr)->left)
+unsigned char const *mad_bit_nextbyte(struct mad_bitptr const *);
+
+void mad_bit_skip(struct mad_bitptr *, unsigned int);
+unsigned long mad_bit_read(struct mad_bitptr *, unsigned int);
+void mad_bit_write(struct mad_bitptr *, unsigned int, unsigned long);
+
+unsigned short mad_bit_crc(struct mad_bitptr, unsigned int, unsigned short);
+
+# endif

lib/libmad/config.h.in

@@ -0,0 +1,135 @@
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Define to enable diagnostic debugging support. */
+#undef DEBUG
+
+/* Define to enable experimental code. */
+#undef EXPERIMENTAL
+
+/* Define to 1 if you have the <assert.h> header file. */
+#undef HAVE_ASSERT_H
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#undef HAVE_DLFCN_H
+
+/* Define to 1 if you have the <errno.h> header file. */
+#undef HAVE_ERRNO_H
+
+/* Define to 1 if you have the `fcntl' function. */
+#undef HAVE_FCNTL
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#undef HAVE_FCNTL_H
+
+/* Define to 1 if you have the `fork' function. */
+#undef HAVE_FORK
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the <limits.h> header file. */
+#undef HAVE_LIMITS_H
+
+/* Define if your MIPS CPU supports a 2-operand MADD16 instruction. */
+#undef HAVE_MADD16_ASM
+
+/* Define if your MIPS CPU supports a 2-operand MADD instruction. */
+#undef HAVE_MADD_ASM
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have the `pipe' function. */
+#undef HAVE_PIPE
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
+#undef HAVE_SYS_WAIT_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Define to 1 if you have the `waitpid' function. */
+#undef HAVE_WAITPID
+
+/* Define to disable debugging assertions. */
+#undef NDEBUG
+
+/* Define to optimize for accuracy over speed. */
+#undef OPT_ACCURACY
+
+/* Define to optimize for speed over accuracy. */
+#undef OPT_SPEED
+
+/* Define to enable a fast subband synthesis approximation optimization. */
+#undef OPT_SSO
+
+/* Define to influence a strict interpretation of the ISO/IEC standards, even
+   if this is in opposition with best accepted practices. */
+#undef OPT_STRICT
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* The size of a `int', as computed by sizeof. */
+#undef SIZEOF_INT
+
+/* The size of a `long', as computed by sizeof. */
+#undef SIZEOF_LONG
+
+/* The size of a `long long', as computed by sizeof. */
+#undef SIZEOF_LONG_LONG
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Version number of package */
+#undef VERSION
+
+/* Define to 1 if your processor stores words with the most significant byte
+   first (like Motorola and SPARC, unlike Intel and VAX). */
+#undef WORDS_BIGENDIAN
+
+/* Define to empty if `const' does not conform to ANSI C. */
+#undef const
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+   calls it, or to nothing if 'inline' is not supported under any name.  */
+#ifndef __cplusplus
+#undef inline
+#endif
+
+/* Define to `int' if <sys/types.h> does not define. */
+#undef pid_t

lib/libmad/configure.ac

@@ -0,0 +1,433 @@
+dnl -*- m4 -*-
+dnl
+dnl libmad - MPEG audio decoder library
+dnl Copyright (C) 2000-2004 Underbit Technologies, Inc.
+dnl
+dnl This program is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 2 of the License, or
+dnl (at your option) any later version.
+dnl
+dnl This program is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+dnl GNU General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program; if not, write to the Free Software
+dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+dnl
+AC_REVISION([$Id: configure.ac,v 1.9 2004/01/23 09:41:32 rob Exp $])dnl
+
+dnl Process this file with autoconf to produce a configure script.
+
+AC_INIT([MPEG Audio Decoder], [0.15.1b], [support@underbit.com], [libmad])
+AC_PREREQ(2.53)
+
+AC_CONFIG_SRCDIR([decoder.h])
+
+AM_INIT_AUTOMAKE
+
+AM_CONFIG_HEADER([config.h])
+
+dnl System type.
+
+AC_CANONICAL_HOST
+
+dnl Checks for programs.
+
+AC_PROG_CC
+AM_PROG_AS
+
+if test "$GCC" = yes
+then
+    case "$host" in
+	*-*-mingw*)
+	    case "$build" in
+		*-*-cygwin*)
+		    CPPFLAGS="$CPPFLAGS -mno-cygwin"
+		    LDFLAGS="$LDFLAGS -mno-cygwin"
+		    ;;
+	    esac
+    esac
+
+dnl    case "$host" in
+dnl	*-*-cygwin* | *-*-mingw*)
+dnl	    LDFLAGS="$LDFLAGS -no-undefined -mdll"
+dnl	    ;;
+dnl    esac
+fi
+
+dnl Support for libtool.
+
+dnl AC_DISABLE_SHARED
+dnl AC_LIBTOOL_WIN32_DLL
+AC_PROG_LIBTOOL
+
+AC_SUBST(LIBTOOL_DEPS)
+
+dnl Compiler options.
+
+arch=""
+debug=""
+optimize=""
+profile=""
+
+set -- $CFLAGS
+CFLAGS=""
+
+if test "$GCC" = yes
+then
+    CFLAGS="-Wall"
+fi
+
+while test $# -gt 0
+do
+    case "$1" in
+	-Wall)
+	    if test "$GCC" = yes
+	    then
+		:
+	    else
+		CFLAGS="$CFLAGS $1"
+	    fi
+	    shift
+	    ;;
+	-g)
+	    debug="-g"
+	    shift
+	    ;;
+	-mno-cygwin)
+	    shift
+	    ;;
+	-m*)
+	    arch="$arch $1"
+	    shift
+	    ;;
+	-O2)
+	    optimize="-O"
+	    shift
+	    ;;
+	-fomit-frame-pointer)
+	    shift
+	    ;;
+	-O*|-f*)
+	    optimize="$optimize $1"
+	    shift
+	    ;;
+	*)
+	    CFLAGS="$CFLAGS $1"
+	    shift
+	    ;;
+    esac
+done
+
+if test "$GCC" = yes
+then
+    if test -z "$arch"
+    then
+	case "$host" in
+	    i386-*)           ;;
+	    i?86-*)           arch="-march=i486" ;;
+	    arm*-empeg-*)     arch="-march=armv4 -mtune=strongarm1100" ;;
+	    armv4*-*)         arch="-march=armv4 -mtune=strongarm" ;;
+	    powerpc-*)        ;;
+	    mips*-agenda-*)   arch="-mcpu=vr4100" ;;
+	    mips*-luxsonor-*) arch="-mips1 -mcpu=r3000 -Wa,-m4010" ;;
+	esac
+    fi
+
+    case "$optimize" in
+	-O|"-O "*)
+	    optimize="-O"
+	    optimize="$optimize -fforce-mem"
+	    optimize="$optimize -fforce-addr"
+	    : #x optimize="$optimize -finline-functions"
+	    : #- optimize="$optimize -fstrength-reduce"
+	    optimize="$optimize -fthread-jumps"
+	    optimize="$optimize -fcse-follow-jumps"
+	    optimize="$optimize -fcse-skip-blocks"
+	    : #x optimize="$optimize -frerun-cse-after-loop"
+	    : #x optimize="$optimize -frerun-loop-opt"
+	    : #x optimize="$optimize -fgcse"
+	    optimize="$optimize -fexpensive-optimizations"
+	    optimize="$optimize -fregmove"
+	    : #* optimize="$optimize -fdelayed-branch"
+	    : #x optimize="$optimize -fschedule-insns"
+	    optimize="$optimize -fschedule-insns2"
+	    : #? optimize="$optimize -ffunction-sections"
+	    : #? optimize="$optimize -fcaller-saves"
+	    : #> optimize="$optimize -funroll-loops"
+	    : #> optimize="$optimize -funroll-all-loops"
+	    : #x optimize="$optimize -fmove-all-movables"
+	    : #x optimize="$optimize -freduce-all-givs"
+	    : #? optimize="$optimize -fstrict-aliasing"
+	    : #* optimize="$optimize -fstructure-noalias"
+
+	    case "$host" in
+		arm*-*)
+		    optimize="$optimize -fstrength-reduce"
+		    ;;
+		mips*-*)
+		    optimize="$optimize -fstrength-reduce"
+		    optimize="$optimize -finline-functions"
+		    ;;
+		i?86-*)
+		    optimize="$optimize -fstrength-reduce"
+		    ;;
+		powerpc-apple-*)
+		    # this triggers an internal compiler error with gcc2
+		    : #optimize="$optimize -fstrength-reduce"
+
+		    # this is really only beneficial with gcc3
+		    : #optimize="$optimize -finline-functions"
+		    ;;
+		*)
+		    # this sometimes provokes bugs in gcc 2.95.2
+		    : #optimize="$optimize -fstrength-reduce"
+		    ;;
+	    esac
+	    ;;
+    esac
+fi
+
+case "$host" in
+    mips*-agenda-*)
+	AC_DEFINE(HAVE_MADD16_ASM, 1,
+	    [Define if your MIPS CPU supports a 2-operand MADD16 instruction.])
+	;;
+    mips*-luxsonor-*)
+	AC_DEFINE(HAVE_MADD_ASM, 1,
+	    [Define if your MIPS CPU supports a 2-operand MADD instruction.])
+	;;
+esac
+
+dnl Checks for header files.
+
+AC_HEADER_STDC
+AC_HEADER_SYS_WAIT
+AC_CHECK_HEADERS(assert.h limits.h unistd.h sys/types.h fcntl.h errno.h)
+
+dnl Checks for typedefs, structures, and compiler characteristics.
+
+AC_C_CONST
+AC_C_INLINE
+AC_C_BIGENDIAN
+AC_TYPE_PID_T
+
+AC_CHECK_SIZEOF(int, 2)
+AC_CHECK_SIZEOF(long, 4)
+AC_CHECK_SIZEOF(long long, 8)
+
+dnl Checks for library functions.
+
+AC_CHECK_FUNCS(waitpid fcntl pipe fork)
+
+dnl Other options.
+
+AC_SUBST(FPM)
+AC_SUBST(ASO)
+AC_SUBST(ASO_OBJS)
+
+dnl handle --enable and --disable options
+
+AC_CACHE_SAVE
+
+AC_MSG_CHECKING(whether to optimize for speed or for accuracy)
+
+AC_ARG_ENABLE(speed, AC_HELP_STRING([--enable-speed],
+		     [optimize for speed over accuracy]),
+[
+    case "$enableval" in
+	yes)
+	    optimize_for="speed"
+	    AC_DEFINE(OPT_SPEED, 1,
+		[Define to optimize for speed over accuracy.])
+	    ;;
+    esac
+])
+
+AC_ARG_ENABLE(accuracy, AC_HELP_STRING([--enable-accuracy],
+			[optimize for accuracy over speed]),
+[
+    case "$enableval" in
+	yes)
+	    if test "$optimize_for" = "speed"
+	    then
+		optimize_for="both"
+	    else
+		optimize_for="accuracy"
+	    fi
+	    AC_DEFINE(OPT_ACCURACY, 1,
+		[Define to optimize for accuracy over speed.])
+	    ;;
+    esac
+])
+
+AC_MSG_RESULT(${optimize_for-default})
+
+if test "$optimize_for" = "both"
+then
+    AC_MSG_ERROR(cannot optimize for both speed and accuracy)
+fi
+
+AC_MSG_CHECKING(for architecture-specific fixed-point math routines)
+AC_ARG_ENABLE(fpm, AC_HELP_STRING([--enable-fpm=ARCH],
+		   [use ARCH-specific fixed-point math routines
+		    (one of: intel, arm, mips, sparc, ppc, 64bit, default)]),
+[
+    case "$enableval" in
+	yes)                             ;;
+	no|default|approx) FPM="DEFAULT" ;;
+	intel|i?86)        FPM="INTEL"   ;;
+	arm)               FPM="ARM"     ;;
+	mips)              FPM="MIPS"    ;;
+	sparc)             FPM="SPARC"   ;;
+	ppc|powerpc)       FPM="PPC"     ;;
+	64bit)             FPM="64BIT"   ;;
+	float)             FPM="FLOAT"   ;;
+	*)
+	    AC_MSG_RESULT(failed)
+	    AC_MSG_ERROR([bad --enable-fpm option])
+	    ;;
+    esac
+])
+
+if test -z "$FPM" && test "$GCC" = yes
+then
+    case "$host" in
+	i?86-*)     FPM="INTEL"  ;;
+	arm*-*)     FPM="ARM"    ;;
+	mips*-*)    FPM="MIPS"   ;;
+	sparc*-*)   FPM="SPARC"  ;;
+	powerpc*-*) FPM="PPC"    ;;
+	# FIXME: need to test for 64-bit long long...
+    esac
+fi
+
+AC_MSG_RESULT(${FPM=DEFAULT})
+
+if test "$FPM" = "DEFAULT"
+then
+    AC_MSG_WARN([default fixed-point math will yield limited accuracy])
+fi
+
+FPM="-DFPM_$FPM"
+
+AC_ARG_ENABLE(sso, AC_HELP_STRING([--enable-sso],
+		   [use subband synthesis optimization]),
+[
+    case "$enableval" in
+	yes)
+	    AC_DEFINE(OPT_SSO, 1,
+    [Define to enable a fast subband synthesis approximation optimization.])
+	    ;;
+    esac
+])
+
+AC_ARG_ENABLE(aso, AC_HELP_STRING([--disable-aso],
+		   [disable architecture-specific optimizations]),
+    [], [enable_aso=yes])
+
+if test "$enable_aso" = yes
+then
+    case "$host" in
+	i?86-*)
+	    : #ASO="$ASO -DASO_INTERLEAVE1"
+	    ASO="$ASO -DASO_ZEROCHECK"
+	    : #not yet #ASO="$ASO -DASO_SYNTH"
+	    : #not yet #ASO_OBJS="synth_mmx.lo"
+	    ;;
+	arm*-*)
+	    ASO="$ASO -DASO_INTERLEAVE1"
+	    ASO="$ASO -DASO_IMDCT"
+	    ASO_OBJS="imdct_l_arm.lo"
+	    ;;
+	mips*-*)
+	    ASO="$ASO -DASO_INTERLEAVE2"
+	    ASO="$ASO -DASO_ZEROCHECK"
+	    ;;
+    esac
+fi
+
+AC_MSG_CHECKING(for ISO/IEC interpretation)
+AC_ARG_ENABLE(strict-iso, AC_HELP_STRING([--enable-strict-iso],
+			  [use strict ISO/IEC interpretations]),
+[
+    case "$enableval" in
+	yes)
+	    AC_DEFINE(OPT_STRICT, 1,
+    [Define to influence a strict interpretation of the ISO/IEC standards,
+     even if this is in opposition with best accepted practices.])
+	    interpretation="strict"
+	    ;;
+    esac
+])
+AC_MSG_RESULT(${interpretation-best accepted practices})
+
+AC_MSG_CHECKING(whether to enable profiling)
+AC_ARG_ENABLE(profiling, AC_HELP_STRING([--enable-profiling],
+			 [generate profiling code]),
+[
+    case "$enableval" in
+	yes) profile="-pg" ;;
+    esac
+])
+AC_MSG_RESULT(${enable_profiling-no})
+
+AC_MSG_CHECKING(whether to enable debugging)
+AC_ARG_ENABLE(debugging, AC_HELP_STRING([--enable-debugging],
+			 [enable diagnostic debugging support])
+AC_HELP_STRING([--disable-debugging],
+	       [do not enable debugging and use more optimization]),
+[
+    case "$enableval" in
+	yes)
+	    AC_DEFINE(DEBUG, 1,
+		[Define to enable diagnostic debugging support.])
+	    optimize=""
+	    ;;
+	no)
+	    if test -n "$profile"
+	    then
+    AC_MSG_ERROR(--enable-profiling and --disable-debugging are incompatible)
+	    fi
+
+	    AC_DEFINE(NDEBUG, 1,
+		[Define to disable debugging assertions.])
+	    debug=""
+	    if test "$GCC" = yes
+	    then
+		optimize="$optimize -fomit-frame-pointer"
+	    fi
+	    ;;
+    esac
+])
+AC_MSG_RESULT(${enable_debugging-default})
+
+AC_MSG_CHECKING(whether to enable experimental code)
+AC_ARG_ENABLE(experimental, AC_HELP_STRING([--enable-experimental],
+			    [enable experimental code]),
+[
+    case "$enableval" in
+	yes)
+	    AC_DEFINE(EXPERIMENTAL, 1,
+		[Define to enable experimental code.])
+	    ;;
+    esac
+])
+AC_MSG_RESULT(${enable_experimental-no})
+
+dnl Create output files.
+
+test -n "$arch"     && CFLAGS="$CFLAGS $arch"
+test -n "$debug"    && CFLAGS="$CFLAGS $debug"
+test -n "$optimize" && CFLAGS="$CFLAGS $optimize"
+test -n "$profile"  && CFLAGS="$CFLAGS $profile" LDFLAGS="$LDFLAGS $profile"
+
+dnl LTLIBOBJS=`echo "$LIBOBJS" | sed -e 's/\.o/.lo/g'`
+dnl AC_SUBST(LTLIBOBJS)
+
+AC_CONFIG_FILES([Makefile msvc++/Makefile  \
+	libmad.list])
+AC_OUTPUT

lib/libmad/decoder.c

@@ -0,0 +1,582 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: decoder.c,v 1.22 2004/01/23 09:41:32 rob Exp $
+ */
+
+# ifdef HAVE_CONFIG_H
+#  include "config.h"
+# endif
+
+# include "global.h"
+
+# ifdef HAVE_SYS_TYPES_H
+#  include <sys/types.h>
+# endif
+
+# ifdef HAVE_SYS_WAIT_H
+#  include <sys/wait.h>
+# endif
+
+# ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+# endif
+
+# ifdef HAVE_FCNTL_H
+#  include <fcntl.h>
+# endif
+
+# include <stdlib.h>
+
+# ifdef HAVE_ERRNO_H
+#  include <errno.h>
+# endif
+
+# include "stream.h"
+# include "frame.h"
+# include "synth.h"
+# include "decoder.h"
+
+/*
+ * NAME:	decoder->init()
+ * DESCRIPTION:	initialize a decoder object with callback routines
+ */
+void mad_decoder_init(struct mad_decoder *decoder, void *data,
+		      enum mad_flow (*input_func)(void *,
+						  struct mad_stream *),
+		      enum mad_flow (*header_func)(void *,
+						   struct mad_header const *),
+		      enum mad_flow (*filter_func)(void *,
+						   struct mad_stream const *,
+						   struct mad_frame *),
+		      enum mad_flow (*output_func)(void *,
+						   struct mad_header const *,
+						   struct mad_pcm *),
+		      enum mad_flow (*error_func)(void *,
+						  struct mad_stream *,
+						  struct mad_frame *),
+		      enum mad_flow (*message_func)(void *,
+						    void *, unsigned int *))
+{
+  decoder->mode         = -1;
+
+  decoder->options      = 0;
+
+  decoder->async.pid    = 0;
+  decoder->async.in     = -1;
+  decoder->async.out    = -1;
+
+  decoder->sync         = 0;
+
+  decoder->cb_data      = data;
+
+  decoder->input_func   = input_func;
+  decoder->header_func  = header_func;
+  decoder->filter_func  = filter_func;
+  decoder->output_func  = output_func;
+  decoder->error_func   = error_func;
+  decoder->message_func = message_func;
+}
+
+int mad_decoder_finish(struct mad_decoder *decoder)
+{
+# if defined(USE_ASYNC)
+  if (decoder->mode == MAD_DECODER_MODE_ASYNC && decoder->async.pid) {
+    pid_t pid;
+    int status;
+
+    close(decoder->async.in);
+
+    do
+      pid = waitpid(decoder->async.pid, &status, 0);
+    while (pid == -1 && errno == EINTR);
+
+    decoder->mode = -1;
+
+    close(decoder->async.out);
+
+    decoder->async.pid = 0;
+    decoder->async.in  = -1;
+    decoder->async.out = -1;
+
+    if (pid == -1)
+      return -1;
+
+    return (!WIFEXITED(status) || WEXITSTATUS(status)) ? -1 : 0;
+  }
+# endif
+
+  return 0;
+}
+
+# if defined(USE_ASYNC)
+static
+enum mad_flow send_io(int fd, void const *data, size_t len)
+{
+  char const *ptr = data;
+  ssize_t count;
+
+  while (len) {
+    do
+      count = write(fd, ptr, len);
+    while (count == -1 && errno == EINTR);
+
+    if (count == -1)
+      return MAD_FLOW_BREAK;
+
+    len -= count;
+    ptr += count;
+  }
+
+  return MAD_FLOW_CONTINUE;
+}
+
+static
+enum mad_flow receive_io(int fd, void *buffer, size_t len)
+{
+  char *ptr = buffer;
+  ssize_t count;
+
+  while (len) {
+    do
+      count = read(fd, ptr, len);
+    while (count == -1 && errno == EINTR);
+
+    if (count == -1)
+      return (errno == EAGAIN) ? MAD_FLOW_IGNORE : MAD_FLOW_BREAK;
+    else if (count == 0)
+      return MAD_FLOW_STOP;
+
+    len -= count;
+    ptr += count;
+  }
+
+  return MAD_FLOW_CONTINUE;
+}
+
+static
+enum mad_flow receive_io_blocking(int fd, void *buffer, size_t len)
+{
+  int flags, blocking;
+  enum mad_flow result;
+
+  flags = fcntl(fd, F_GETFL);
+  if (flags == -1)
+    return MAD_FLOW_BREAK;
+
+  blocking = flags & ~O_NONBLOCK;
+
+  if (blocking != flags &&
+      fcntl(fd, F_SETFL, blocking) == -1)
+    return MAD_FLOW_BREAK;
+
+  result = receive_io(fd, buffer, len);
+
+  if (flags != blocking &&
+      fcntl(fd, F_SETFL, flags) == -1)
+    return MAD_FLOW_BREAK;
+
+  return result;
+}
+
+static
+enum mad_flow send(int fd, void const *message, unsigned int size)
+{
+  enum mad_flow result;
+
+  /* send size */
+
+  result = send_io(fd, &size, sizeof(size));
+
+  /* send message */
+
+  if (result == MAD_FLOW_CONTINUE)
+    result = send_io(fd, message, size);
+
+  return result;
+}
+
+static
+enum mad_flow receive(int fd, void **message, unsigned int *size)
+{
+  enum mad_flow result;
+  unsigned int actual;
+
+  if (*message == 0)
+    *size = 0;
+
+  /* receive size */
+
+  result = receive_io(fd, &actual, sizeof(actual));
+
+  /* receive message */
+
+  if (result == MAD_FLOW_CONTINUE) {
+    if (actual > *size)
+      actual -= *size;
+    else {
+      *size  = actual;
+      actual = 0;
+    }
+
+    if (*size > 0) {
+      if (*message == 0) {
+	*message = malloc(*size);
+	if (*message == 0)
+	  return MAD_FLOW_BREAK;
+      }
+
+      result = receive_io_blocking(fd, *message, *size);
+    }
+
+    /* throw away remainder of message */
+
+    while (actual && result == MAD_FLOW_CONTINUE) {
+      char sink[256];
+      unsigned int len;
+
+      len = actual > sizeof(sink) ? sizeof(sink) : actual;
+
+      result = receive_io_blocking(fd, sink, len);
+
+      actual -= len;
+    }
+  }
+
+  return result;
+}
+
+static
+enum mad_flow check_message(struct mad_decoder *decoder)
+{
+  enum mad_flow result;
+  void *message = 0;
+  unsigned int size;
+
+  result = receive(decoder->async.in, &message, &size);
+
+  if (result == MAD_FLOW_CONTINUE) {
+    if (decoder->message_func == 0)
+      size = 0;
+    else {
+      result = decoder->message_func(decoder->cb_data, message, &size);
+
+      if (result == MAD_FLOW_IGNORE ||
+	  result == MAD_FLOW_BREAK)
+	size = 0;
+    }
+
+    if (send(decoder->async.out, message, size) != MAD_FLOW_CONTINUE)
+      result = MAD_FLOW_BREAK;
+  }
+
+  if (message)
+    free(message);
+
+  return result;
+}
+# endif
+
+static
+enum mad_flow error_default(void *data, struct mad_stream *stream,
+			    struct mad_frame *frame)
+{
+  int *bad_last_frame = data;
+
+  switch (stream->error) {
+  case MAD_ERROR_BADCRC:
+    if (*bad_last_frame)
+      mad_frame_mute(frame);
+    else
+      *bad_last_frame = 1;
+
+    return MAD_FLOW_IGNORE;
+
+  default:
+    return MAD_FLOW_CONTINUE;
+  }
+}
+
+static
+int run_sync(struct mad_decoder *decoder)
+{
+  enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);
+  void *error_data;
+  int bad_last_frame = 0;
+  struct mad_stream *stream;
+  struct mad_frame *frame;
+  struct mad_synth *synth;
+  int result = 0;
+
+  if (decoder->input_func == 0)
+    return 0;
+
+  if (decoder->error_func) {
+    error_func = decoder->error_func;
+    error_data = decoder->cb_data;
+  }
+  else {
+    error_func = error_default;
+    error_data = &bad_last_frame;
+  }
+
+  stream = &decoder->sync->stream;
+  frame  = &decoder->sync->frame;
+  synth  = &decoder->sync->synth;
+
+  mad_stream_init(stream);
+  mad_frame_init(frame);
+  mad_synth_init(synth);
+
+  mad_stream_options(stream, decoder->options);
+
+  do {
+    switch (decoder->input_func(decoder->cb_data, stream)) {
+    case MAD_FLOW_STOP:
+      goto done;
+    case MAD_FLOW_BREAK:
+      goto fail;
+    case MAD_FLOW_IGNORE:
+      continue;
+    case MAD_FLOW_CONTINUE:
+      break;
+    }
+
+    while (1) {
+# if defined(USE_ASYNC)
+      if (decoder->mode == MAD_DECODER_MODE_ASYNC) {
+	switch (check_message(decoder)) {
+	case MAD_FLOW_IGNORE:
+	case MAD_FLOW_CONTINUE:
+	  break;
+	case MAD_FLOW_BREAK:
+	  goto fail;
+	case MAD_FLOW_STOP:
+	  goto done;
+	}
+      }
+# endif
+
+      if (decoder->header_func) {
+	if (mad_header_decode(&frame->header, stream) == -1) {
+	  if (!MAD_RECOVERABLE(stream->error))
+	    break;
+
+	  switch (error_func(error_data, stream, frame)) {
+	  case MAD_FLOW_STOP:
+	    goto done;
+	  case MAD_FLOW_BREAK:
+	    goto fail;
+	  case MAD_FLOW_IGNORE:
+	  case MAD_FLOW_CONTINUE:
+	  default:
+	    continue;
+	  }
+	}
+
+	switch (decoder->header_func(decoder->cb_data, &frame->header)) {
+	case MAD_FLOW_STOP:
+	  goto done;
+	case MAD_FLOW_BREAK:
+	  goto fail;
+	case MAD_FLOW_IGNORE:
+	  continue;
+	case MAD_FLOW_CONTINUE:
+	  break;
+	}
+      }
+
+      if (mad_frame_decode(frame, stream) == -1) {
+	if (!MAD_RECOVERABLE(stream->error))
+	  break;
+
+	switch (error_func(error_data, stream, frame)) {
+	case MAD_FLOW_STOP:
+	  goto done;
+	case MAD_FLOW_BREAK:
+	  goto fail;
+	case MAD_FLOW_IGNORE:
+	  break;
+	case MAD_FLOW_CONTINUE:
+	default:
+	  continue;
+	}
+      }
+      else
+	bad_last_frame = 0;
+
+      if (decoder->filter_func) {
+	switch (decoder->filter_func(decoder->cb_data, stream, frame)) {
+	case MAD_FLOW_STOP:
+	  goto done;
+	case MAD_FLOW_BREAK:
+	  goto fail;
+	case MAD_FLOW_IGNORE:
+	  continue;
+	case MAD_FLOW_CONTINUE:
+	  break;
+	}
+      }
+
+      mad_synth_frame(synth, frame);
+
+      if (decoder->output_func) {
+	switch (decoder->output_func(decoder->cb_data,
+				     &frame->header, &synth->pcm)) {
+	case MAD_FLOW_STOP:
+	  goto done;
+	case MAD_FLOW_BREAK:
+	  goto fail;
+	case MAD_FLOW_IGNORE:
+	case MAD_FLOW_CONTINUE:
+	  break;
+	}
+      }
+    }
+  }
+  while (stream->error == MAD_ERROR_BUFLEN);
+
+ fail:
+  result = -1;
+
+ done:
+  mad_synth_finish(synth);
+  mad_frame_finish(frame);
+  mad_stream_finish(stream);
+
+  return result;
+}
+
+# if defined(USE_ASYNC)
+static
+int run_async(struct mad_decoder *decoder)
+{
+  pid_t pid;
+  int ptoc[2], ctop[2], flags;
+
+  if (pipe(ptoc) == -1)
+    return -1;
+
+  if (pipe(ctop) == -1) {
+    close(ptoc[0]);
+    close(ptoc[1]);
+    return -1;
+  }
+
+  flags = fcntl(ptoc[0], F_GETFL);
+  if (flags == -1 ||
+      fcntl(ptoc[0], F_SETFL, flags | O_NONBLOCK) == -1) {
+    close(ctop[0]);
+    close(ctop[1]);
+    close(ptoc[0]);
+    close(ptoc[1]);
+    return -1;
+  }
+
+  pid = fork();
+  if (pid == -1) {
+    close(ctop[0]);
+    close(ctop[1]);
+    close(ptoc[0]);
+    close(ptoc[1]);
+    return -1;
+  }
+
+  decoder->async.pid = pid;
+
+  if (pid) {
+    /* parent */
+
+    close(ptoc[0]);
+    close(ctop[1]);
+
+    decoder->async.in  = ctop[0];
+    decoder->async.out = ptoc[1];
+
+    return 0;
+  }
+
+  /* child */
+
+  close(ptoc[1]);
+  close(ctop[0]);
+
+  decoder->async.in  = ptoc[0];
+  decoder->async.out = ctop[1];
+
+  _exit(run_sync(decoder));
+
+  /* not reached */
+  return -1;
+}
+# endif
+
+/*
+ * NAME:	decoder->run()
+ * DESCRIPTION:	run the decoder thread either synchronously or asynchronously
+ */
+int mad_decoder_run(struct mad_decoder *decoder, enum mad_decoder_mode mode)
+{
+  int result;
+  int (*run)(struct mad_decoder *) = 0;
+
+  switch (decoder->mode = mode) {
+  case MAD_DECODER_MODE_SYNC:
+    run = run_sync;
+    break;
+
+  case MAD_DECODER_MODE_ASYNC:
+# if defined(USE_ASYNC)
+    run = run_async;
+# endif
+    break;
+  }
+
+  if (run == 0)
+    return -1;
+
+  decoder->sync = malloc(sizeof(*decoder->sync));
+  if (decoder->sync == 0)
+    return -1;
+
+  result = run(decoder);
+
+  free(decoder->sync);
+  decoder->sync = 0;
+
+  return result;
+}
+
+/*
+ * NAME:	decoder->message()
+ * DESCRIPTION:	send a message to and receive a reply from the decoder process
+ */
+int mad_decoder_message(struct mad_decoder *decoder,
+			void *message, unsigned int *len)
+{
+# if defined(USE_ASYNC)
+  if (decoder->mode != MAD_DECODER_MODE_ASYNC ||
+      send(decoder->async.out, message, *len) != MAD_FLOW_CONTINUE ||
+      receive(decoder->async.in, &message, len) != MAD_FLOW_CONTINUE)
+    return -1;
+
+  return 0;
+# else
+  return -1;
+# endif
+}

lib/libmad/decoder.h

@@ -0,0 +1,91 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: decoder.h,v 1.17 2004/01/23 09:41:32 rob Exp $
+ */
+
+# ifndef LIBMAD_DECODER_H
+# define LIBMAD_DECODER_H
+
+# include "stream.h"
+# include "frame.h"
+# include "synth.h"
+
+enum mad_decoder_mode {
+  MAD_DECODER_MODE_SYNC  = 0,
+  MAD_DECODER_MODE_ASYNC
+};
+
+enum mad_flow {
+  MAD_FLOW_CONTINUE = 0x0000,	/* continue normally */
+  MAD_FLOW_STOP     = 0x0010,	/* stop decoding normally */
+  MAD_FLOW_BREAK    = 0x0011,	/* stop decoding and signal an error */
+  MAD_FLOW_IGNORE   = 0x0020	/* ignore the current frame */
+};
+
+struct mad_decoder {
+  enum mad_decoder_mode mode;
+
+  int options;
+
+  struct {
+    long pid;
+    int in;
+    int out;
+  } async;
+
+  struct {
+    struct mad_stream stream;
+    struct mad_frame frame;
+    struct mad_synth synth;
+  } *sync;
+
+  void *cb_data;
+
+  enum mad_flow (*input_func)(void *, struct mad_stream *);
+  enum mad_flow (*header_func)(void *, struct mad_header const *);
+  enum mad_flow (*filter_func)(void *,
+			       struct mad_stream const *, struct mad_frame *);
+  enum mad_flow (*output_func)(void *,
+			       struct mad_header const *, struct mad_pcm *);
+  enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);
+  enum mad_flow (*message_func)(void *, void *, unsigned int *);
+};
+
+void mad_decoder_init(struct mad_decoder *, void *,
+		      enum mad_flow (*)(void *, struct mad_stream *),
+		      enum mad_flow (*)(void *, struct mad_header const *),
+		      enum mad_flow (*)(void *,
+					struct mad_stream const *,
+					struct mad_frame *),
+		      enum mad_flow (*)(void *,
+					struct mad_header const *,
+					struct mad_pcm *),
+		      enum mad_flow (*)(void *,
+					struct mad_stream *,
+					struct mad_frame *),
+		      enum mad_flow (*)(void *, void *, unsigned int *));
+int mad_decoder_finish(struct mad_decoder *);
+
+# define mad_decoder_options(decoder, opts)  \
+    ((void) ((decoder)->options = (opts)))
+
+int mad_decoder_run(struct mad_decoder *, enum mad_decoder_mode);
+int mad_decoder_message(struct mad_decoder *, void *, unsigned int *);
+
+# endif

lib/libmad/depcomp

@@ -0,0 +1,464 @@
+#! /bin/sh
+
+# depcomp - compile a program generating dependencies as side-effects
+# Copyright 1999, 2000 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+  echo "depcomp: Variables source, object and depmode must be set" 1>&2
+  exit 1
+fi
+# `libtool' can also be set to `yes' or `no'.
+
+if test -z "$depfile"; then
+   base=`echo "$object" | sed -e 's,^.*/,,' -e 's,\.\([^.]*\)$,.P\1,'`
+   dir=`echo "$object" | sed 's,/.*$,/,'`
+   if test "$dir" = "$object"; then
+      dir=
+   fi
+   # FIXME: should be _deps on DOS.
+   depfile="$dir.deps/$base"
+fi
+
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+# Some modes work just like other modes, but use different flags.  We
+# parameterize here, but still list the modes in the big case below,
+# to make depend.m4 easier to write.  Note that we *cannot* use a case
+# here, because this file can only contain one case statement.
+if test "$depmode" = hp; then
+  # HP compiler uses -M and no extra arg.
+  gccflag=-M
+  depmode=gcc
+fi
+
+if test "$depmode" = dashXmstdout; then
+   # This is just like dashmstdout with a different argument.
+   dashmflag=-xM
+   depmode=dashmstdout
+fi
+
+case "$depmode" in
+gcc3)
+## gcc 3 implements dependency tracking that does exactly what
+## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
+## it if -MD -MP comes after the -MF stuff.  Hmm.
+  "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  mv "$tmpdepfile" "$depfile"
+  ;;
+
+gcc)
+## There are various ways to get dependency output from gcc.  Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+##   up in a subdir.  Having to rename by hand is ugly.
+##   (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+##   -MM, not -M (despite what the docs say).
+## - Using -M directly means running the compiler twice (even worse
+##   than renaming).
+  if test -z "$gccflag"; then
+    gccflag=-MD,
+  fi
+  "$@" -Wp,"$gccflag$tmpdepfile"
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
+## The second -e expression handles DOS-style file names with drive letters.
+  sed -e 's/^[^:]*: / /' \
+      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the `deleted header file' problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header).  We avoid this by adding
+## dummy dependencies for each header file.  Too bad gcc doesn't do
+## this for us directly.
+  tr ' ' '
+' < "$tmpdepfile" |
+## Some versions of gcc put a space before the `:'.  On the theory
+## that the space means something, we add a space to the output as
+## well.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+sgi)
+  if test "$libtool" = yes; then
+    "$@" "-Wp,-MDupdate,$tmpdepfile"
+  else
+    "$@" -MDupdate "$tmpdepfile"
+  fi
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+
+  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
+    echo "$object : \\" > "$depfile"
+
+    # Clip off the initial element (the dependent).  Don't try to be
+    # clever and replace this with sed code, as IRIX sed won't handle
+    # lines with more than a fixed number of characters (4096 in
+    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
+    # the IRIX cc adds comments like `#:fec' to the end of the
+    # dependency line.
+    tr ' ' '
+' < "$tmpdepfile" \
+    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
+    tr '
+' ' ' >> $depfile
+    echo >> $depfile
+
+    # The second pass generates a dummy entry for each header file.
+    tr ' ' '
+' < "$tmpdepfile" \
+   | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
+   >> $depfile
+  else
+    # The sourcefile does not contain any dependencies, so just
+    # store a dummy comment line, to avoid errors with the Makefile
+    # "include basename.Plo" scheme.
+    echo "#dummy" > "$depfile"
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+aix)
+  # The C for AIX Compiler uses -M and outputs the dependencies
+  # in a .u file.  This file always lives in the current directory.
+  # Also, the AIX compiler puts `$object:' at the start of each line;
+  # $object doesn't have directory information.
+  stripped=`echo "$object" | sed -e 's,^.*/,,' -e 's/\(.*\)\..*$/\1/'`
+  tmpdepfile="$stripped.u"
+  outname="$stripped.o"
+  if test "$libtool" = yes; then
+    "$@" -Wc,-M
+  else
+    "$@" -M
+  fi
+
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+
+  if test -f "$tmpdepfile"; then
+    # Each line is of the form `foo.o: dependent.h'.
+    # Do two passes, one to just change these to
+    # `$object: dependent.h' and one to simply `dependent.h:'.
+    sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
+    sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
+  else
+    # The sourcefile does not contain any dependencies, so just
+    # store a dummy comment line, to avoid errors with the Makefile
+    # "include basename.Plo" scheme.
+    echo "#dummy" > "$depfile"
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+icc)
+  # Must come before tru64.
+
+  # Intel's C compiler understands `-MD -MF file'.  However
+  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
+  # will fill foo.d with something like
+  #    foo.o: sub/foo.c
+  #    foo.o: sub/foo.h
+  # which is wrong.  We want:
+  #    sub/foo.o: sub/foo.c
+  #    sub/foo.o: sub/foo.h
+  #    sub/foo.c:
+  #    sub/foo.h:
+
+  "$@" -MD -MF "$tmpdepfile"
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  # Each line is of the form `foo.o: dependent.h'.
+  # Do two passes, one to just change these to
+  # `$object: dependent.h' and one to simply `dependent.h:'.
+  sed -e "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
+  sed -e "s,^[^:]*: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+tru64)
+   # The Tru64 compiler uses -MD to generate dependencies as a side
+   # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
+   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
+   # dependencies in `foo.d' instead, so we check for that too.
+   # Subdirectories are respected.
+   dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+   test "x$dir" = "x$object" && dir=
+   base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+
+   if test "$libtool" = yes; then
+      tmpdepfile1="$dir.libs/$base.lo.d"
+      tmpdepfile2="$dir.libs/$base.d"
+      "$@" -Wc,-MD
+   else
+      tmpdepfile1="$dir$base.o.d"
+      tmpdepfile2="$dir$base.d"
+      "$@" -MD
+   fi
+
+   stat=$?
+   if test $stat -eq 0; then :
+   else
+      rm -f "$tmpdepfile1" "$tmpdepfile2"
+      exit $stat
+   fi
+
+   if test -f "$tmpdepfile1"; then
+      tmpdepfile="$tmpdepfile1"
+   else
+      tmpdepfile="$tmpdepfile2"
+   fi
+   if test -f "$tmpdepfile"; then
+      sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
+      # That's a space and a tab in the [].
+      sed -e 's,^.*\.[a-z]*:[ 	]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+   else
+      echo "#dummy" > "$depfile"
+   fi
+   rm -f "$tmpdepfile"
+   ;;
+
+#nosideeffect)
+  # This comment above is used by automake to tell side-effect
+  # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the proprocessed file to stdout, regardless of -o.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test $1 != '--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove `-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  test -z "$dashmflag" && dashmflag=-M
+  # Require at least two characters before searching for `:'
+  # in the target name.  This is to cope with DOS-style filenames:
+  # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
+  "$@" $dashmflag |
+    sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  tr ' ' '
+' < "$tmpdepfile" | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+dashXmstdout)
+  # This case only exists to satisfy depend.m4.  It is never actually
+  # run, as this mode is specially recognized in the preamble.
+  exit 1
+  ;;
+
+makedepend)
+  "$@" || exit $?
+  # Remove any Libtool call
+  if test "$libtool" = yes; then
+    while test $1 != '--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+  # X makedepend
+  shift
+  cleared=no
+  for arg in "$@"; do
+    case $cleared in
+    no)
+      set ""; shift
+      cleared=yes ;;
+    esac
+    case "$arg" in
+    -D*|-I*)
+      set fnord "$@" "$arg"; shift ;;
+    # Strip any option that makedepend may not understand.  Remove
+    # the object too, otherwise makedepend will parse it as a source file.
+    -*|$object)
+      ;;
+    *)
+      set fnord "$@" "$arg"; shift ;;
+    esac
+  done
+  obj_suffix="`echo $object | sed 's/^.*\././'`"
+  touch "$tmpdepfile"
+  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  sed '1,2d' "$tmpdepfile" | tr ' ' '
+' | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile" "$tmpdepfile".bak
+  ;;
+
+cpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the proprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test $1 != '--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove `-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  "$@" -E |
+    sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
+    sed '$ s: \\$::' > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  cat < "$tmpdepfile" >> "$depfile"
+  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvisualcpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the proprocessed file to stdout, regardless of -o,
+  # because we must use -o when running libtool.
+  "$@" || exit $?
+  IFS=" "
+  for arg
+  do
+    case "$arg" in
+    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
+	set fnord "$@"
+	shift
+	shift
+	;;
+    *)
+	set fnord "$@" "$arg"
+	shift
+	shift
+	;;
+    esac
+  done
+  "$@" -E |
+  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::	\1 \\:p' >> "$depfile"
+  echo "	" >> "$depfile"
+  . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+none)
+  exec "$@"
+  ;;
+
+*)
+  echo "Unknown depmode $depmode" 1>&2
+  exit 1
+  ;;
+esac
+
+exit 0

lib/libmad/fixed.c

@@ -0,0 +1,81 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: fixed.c,v 1.13 2004/01/23 09:41:32 rob Exp $
+ */
+
+# ifdef HAVE_CONFIG_H
+#  include "config.h"
+# endif
+
+# include "global.h"
+
+# include "fixed.h"
+
+/*
+ * NAME:	fixed->abs()
+ * DESCRIPTION:	return absolute value of a fixed-point number
+ */
+mad_fixed_t mad_f_abs(mad_fixed_t x)
+{
+  return x < 0 ? -x : x;
+}
+
+/*
+ * NAME:	fixed->div()
+ * DESCRIPTION:	perform division using fixed-point math
+ */
+mad_fixed_t mad_f_div(mad_fixed_t x, mad_fixed_t y)
+{
+  mad_fixed_t q, r;
+  unsigned int bits;
+
+  q = mad_f_abs(x / y);
+
+  if (x < 0) {
+    x = -x;
+    y = -y;
+  }
+
+  r = x % y;
+
+  if (y < 0) {
+    x = -x;
+    y = -y;
+  }
+
+  if (q > mad_f_intpart(MAD_F_MAX) &&
+      !(q == -mad_f_intpart(MAD_F_MIN) && r == 0 && (x < 0) != (y < 0)))
+    return 0;
+
+  for (bits = MAD_F_FRACBITS; bits && r; --bits) {
+    q <<= 1, r <<= 1;
+    if (r >= y)
+      r -= y, ++q;
+  }
+
+  /* round */
+  if (2 * r >= y)
+    ++q;
+
+  /* fix sign */
+  if ((x < 0) != (y < 0))
+    q = -q;
+
+  return q << bits;
+}

lib/libmad/fixed.h

@@ -0,0 +1,499 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: fixed.h,v 1.38 2004/02/17 02:02:03 rob Exp $
+ */
+
+# ifndef LIBMAD_FIXED_H
+# define LIBMAD_FIXED_H
+
+# if SIZEOF_INT >= 4
+typedef   signed int mad_fixed_t;
+
+typedef   signed int mad_fixed64hi_t;
+typedef unsigned int mad_fixed64lo_t;
+# else
+typedef   signed long mad_fixed_t;
+
+typedef   signed long mad_fixed64hi_t;
+typedef unsigned long mad_fixed64lo_t;
+# endif
+
+# if defined(_MSC_VER)
+#  define mad_fixed64_t  signed __int64
+# elif 1 || defined(__GNUC__)
+#  define mad_fixed64_t  signed long long
+# endif
+
+# if defined(FPM_FLOAT)
+typedef double mad_sample_t;
+# else
+typedef mad_fixed_t mad_sample_t;
+# endif
+
+/*
+ * Fixed-point format: 0xABBBBBBB
+ * A == whole part      (sign + 3 bits)
+ * B == fractional part (28 bits)
+ *
+ * Values are signed two's complement, so the effective range is:
+ * 0x80000000 to 0x7fffffff
+ *       -8.0 to +7.9999999962747097015380859375
+ *
+ * The smallest representable value is:
+ * 0x00000001 == 0.0000000037252902984619140625 (i.e. about 3.725e-9)
+ *
+ * 28 bits of fractional accuracy represent about
+ * 8.6 digits of decimal accuracy.
+ *
+ * Fixed-point numbers can be added or subtracted as normal
+ * integers, but multiplication requires shifting the 64-bit result
+ * from 56 fractional bits back to 28 (and rounding.)
+ *
+ * Changing the definition of MAD_F_FRACBITS is only partially
+ * supported, and must be done with care.
+ */
+
+# define MAD_F_FRACBITS		28
+
+# if MAD_F_FRACBITS == 28
+#  define MAD_F(x)		((mad_fixed_t) (x##L))
+# else
+#  if MAD_F_FRACBITS < 28
+#   warning "MAD_F_FRACBITS < 28"
+#   define MAD_F(x)		((mad_fixed_t)  \
+				 (((x##L) +  \
+				   (1L << (28 - MAD_F_FRACBITS - 1))) >>  \
+				  (28 - MAD_F_FRACBITS)))
+#  elif MAD_F_FRACBITS > 28
+#   error "MAD_F_FRACBITS > 28 not currently supported"
+#   define MAD_F(x)		((mad_fixed_t)  \
+				 ((x##L) << (MAD_F_FRACBITS - 28)))
+#  endif
+# endif
+
+# define MAD_F_MIN		((mad_fixed_t) -0x80000000L)
+# define MAD_F_MAX		((mad_fixed_t) +0x7fffffffL)
+
+# define MAD_F_ONE		MAD_F(0x10000000)
+
+# define mad_f_tofixed(x)	((mad_fixed_t)  \
+				 ((x) * (double) (1L << MAD_F_FRACBITS) + 0.5))
+# define mad_f_todouble(x)	((double)  \
+				 ((x) / (double) (1L << MAD_F_FRACBITS)))
+
+# define mad_f_intpart(x)	((x) >> MAD_F_FRACBITS)
+# define mad_f_fracpart(x)	((x) & ((1L << MAD_F_FRACBITS) - 1))
+				/* (x should be positive) */
+
+# define mad_f_fromint(x)	((x) << MAD_F_FRACBITS)
+
+# define mad_f_add(x, y)	((x) + (y))
+# define mad_f_sub(x, y)	((x) - (y))
+
+# if defined(FPM_FLOAT)
+#  error "FPM_FLOAT not yet supported"
+
+#  undef MAD_F
+#  define MAD_F(x)		mad_f_todouble(x)
+
+#  define mad_f_mul(x, y)	((x) * (y))
+#  define mad_f_scale64
+
+#  undef ASO_ZEROCHECK
+
+# elif defined(FPM_64BIT)
+
+/*
+ * This version should be the most accurate if 64-bit types are supported by
+ * the compiler, although it may not be the most efficient.
+ */
+#  if defined(OPT_ACCURACY)
+#   define mad_f_mul(x, y)  \
+    ((mad_fixed_t)  \
+     ((((mad_fixed64_t) (x) * (y)) +  \
+       (1L << (MAD_F_SCALEBITS - 1))) >> MAD_F_SCALEBITS))
+#  else
+#   define mad_f_mul(x, y)  \
+    ((mad_fixed_t) (((mad_fixed64_t) (x) * (y)) >> MAD_F_SCALEBITS))
+#  endif
+
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+
+/* --- Intel --------------------------------------------------------------- */
+
+# elif defined(FPM_INTEL)
+
+#  if defined(_MSC_VER)
+#   pragma warning(push)
+#   pragma warning(disable: 4035)  /* no return value */
+static __forceinline
+mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y)
+{
+  enum {
+    fracbits = MAD_F_FRACBITS
+  };
+
+  __asm {
+    mov eax, x
+    imul y
+    shrd eax, edx, fracbits
+  }
+
+  /* implicit return of eax */
+}
+#   pragma warning(pop)
+
+#   define mad_f_mul		mad_f_mul_inline
+#   define mad_f_scale64
+#  else
+/*
+ * This Intel version is fast and accurate; the disposition of the least
+ * significant bit depends on OPT_ACCURACY via mad_f_scale64().
+ */
+#   define MAD_F_MLX(hi, lo, x, y)  \
+    asm ("imull %3"  \
+	 : "=a" (lo), "=d" (hi)  \
+	 : "%a" (x), "rm" (y)  \
+	 : "cc")
+
+#   if defined(OPT_ACCURACY)
+/*
+ * This gives best accuracy but is not very fast.
+ */
+#    define MAD_F_MLA(hi, lo, x, y)  \
+    ({ mad_fixed64hi_t __hi;  \
+       mad_fixed64lo_t __lo;  \
+       MAD_F_MLX(__hi, __lo, (x), (y));  \
+       asm ("addl %2,%0\n\t"  \
+	    "adcl %3,%1"  \
+	    : "=rm" (lo), "=rm" (hi)  \
+	    : "r" (__lo), "r" (__hi), "0" (lo), "1" (hi)  \
+	    : "cc");  \
+    })
+#   endif  /* OPT_ACCURACY */
+
+#   if defined(OPT_ACCURACY)
+/*
+ * Surprisingly, this is faster than SHRD followed by ADC.
+ */
+#    define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed64hi_t __hi_;  \
+       mad_fixed64lo_t __lo_;  \
+       mad_fixed_t __result;  \
+       asm ("addl %4,%2\n\t"  \
+	    "adcl %5,%3"  \
+	    : "=rm" (__lo_), "=rm" (__hi_)  \
+	    : "0" (lo), "1" (hi),  \
+	      "ir" (1L << (MAD_F_SCALEBITS - 1)), "ir" (0)  \
+	    : "cc");  \
+       asm ("shrdl %3,%2,%1"  \
+	    : "=rm" (__result)  \
+	    : "0" (__lo_), "r" (__hi_), "I" (MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+#   elif defined(OPT_INTEL)
+/*
+ * Alternate Intel scaling that may or may not perform better.
+ */
+#    define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result;  \
+       asm ("shrl %3,%1\n\t"  \
+	    "shll %4,%2\n\t"  \
+	    "orl %2,%1"  \
+	    : "=rm" (__result)  \
+	    : "0" (lo), "r" (hi),  \
+	      "I" (MAD_F_SCALEBITS), "I" (32 - MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+#   else
+#    define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result;  \
+       asm ("shrdl %3,%2,%1"  \
+	    : "=rm" (__result)  \
+	    : "0" (lo), "r" (hi), "I" (MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+#   endif  /* OPT_ACCURACY */
+
+#   define MAD_F_SCALEBITS  MAD_F_FRACBITS
+#  endif
+
+/* --- ARM ----------------------------------------------------------------- */
+
+# elif defined(FPM_ARM)
+
+/* 
+ * This ARM V4 version is as accurate as FPM_64BIT but much faster. The
+ * least significant bit is properly rounded at no CPU cycle cost!
+ */
+# if 1
+/*
+ * This is faster than the default implementation via MAD_F_MLX() and
+ * mad_f_scale64().
+ */
+#  define mad_f_mul(x, y)  \
+    ({ mad_fixed64hi_t __hi;  \
+       mad_fixed64lo_t __lo;  \
+       mad_fixed_t __result;  \
+       asm ("smull	%0, %1, %3, %4\n\t"  \
+	    "movs	%0, %0, lsr %5\n\t"  \
+	    "adc	%2, %0, %1, lsl %6"  \
+	    : "=&r" (__lo), "=&r" (__hi), "=r" (__result)  \
+	    : "%r" (x), "r" (y),  \
+	      "M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+# endif
+
+#  define MAD_F_MLX(hi, lo, x, y)  \
+    asm ("smull	%0, %1, %2, %3"  \
+	 : "=&r" (lo), "=&r" (hi)  \
+	 : "%r" (x), "r" (y))
+
+#  define MAD_F_MLA(hi, lo, x, y)  \
+    asm ("smlal	%0, %1, %2, %3"  \
+	 : "+r" (lo), "+r" (hi)  \
+	 : "%r" (x), "r" (y))
+
+#  define MAD_F_MLN(hi, lo)  \
+    asm ("rsbs	%0, %2, #0\n\t"  \
+	 "rsc	%1, %3, #0"  \
+	 : "=r" (lo), "=r" (hi)  \
+	 : "0" (lo), "1" (hi)  \
+	 : "cc")
+
+#  define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result;  \
+       asm ("movs	%0, %1, lsr %3\n\t"  \
+	    "adc	%0, %0, %2, lsl %4"  \
+	    : "=&r" (__result)  \
+	    : "r" (lo), "r" (hi),  \
+	      "M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+
+/* --- MIPS ---------------------------------------------------------------- */
+
+# elif defined(FPM_MIPS)
+
+/*
+ * This MIPS version is fast and accurate; the disposition of the least
+ * significant bit depends on OPT_ACCURACY via mad_f_scale64().
+ */
+#  define MAD_F_MLX(hi, lo, x, y)  \
+    asm ("mult	%2,%3"  \
+	 : "=l" (lo), "=h" (hi)  \
+	 : "%r" (x), "r" (y))
+
+# if defined(HAVE_MADD_ASM)
+#  define MAD_F_MLA(hi, lo, x, y)  \
+    asm ("madd	%2,%3"  \
+	 : "+l" (lo), "+h" (hi)  \
+	 : "%r" (x), "r" (y))
+# elif defined(HAVE_MADD16_ASM)
+/*
+ * This loses significant accuracy due to the 16-bit integer limit in the
+ * multiply/accumulate instruction.
+ */
+#  define MAD_F_ML0(hi, lo, x, y)  \
+    asm ("mult	%2,%3"  \
+	 : "=l" (lo), "=h" (hi)  \
+	 : "%r" ((x) >> 12), "r" ((y) >> 16))
+#  define MAD_F_MLA(hi, lo, x, y)  \
+    asm ("madd16	%2,%3"  \
+	 : "+l" (lo), "+h" (hi)  \
+	 : "%r" ((x) >> 12), "r" ((y) >> 16))
+#  define MAD_F_MLZ(hi, lo)  ((mad_fixed_t) (lo))
+# endif
+
+# if defined(OPT_SPEED)
+#  define mad_f_scale64(hi, lo)  \
+    ((mad_fixed_t) ((hi) << (32 - MAD_F_SCALEBITS)))
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+# endif
+
+/* --- SPARC --------------------------------------------------------------- */
+
+# elif defined(FPM_SPARC)
+
+/*
+ * This SPARC V8 version is fast and accurate; the disposition of the least
+ * significant bit depends on OPT_ACCURACY via mad_f_scale64().
+ */
+#  define MAD_F_MLX(hi, lo, x, y)  \
+    asm ("smul %2, %3, %0\n\t"  \
+	 "rd %%y, %1"  \
+	 : "=r" (lo), "=r" (hi)  \
+	 : "%r" (x), "rI" (y))
+
+/* --- PowerPC ------------------------------------------------------------- */
+
+# elif defined(FPM_PPC)
+
+/*
+ * This PowerPC version is fast and accurate; the disposition of the least
+ * significant bit depends on OPT_ACCURACY via mad_f_scale64().
+ */
+#  define MAD_F_MLX(hi, lo, x, y)  \
+    do {  \
+      asm ("mullw %0,%1,%2"  \
+	   : "=r" (lo)  \
+	   : "%r" (x), "r" (y));  \
+      asm ("mulhw %0,%1,%2"  \
+	   : "=r" (hi)  \
+	   : "%r" (x), "r" (y));  \
+    }  \
+    while (0)
+
+#  if defined(OPT_ACCURACY)
+/*
+ * This gives best accuracy but is not very fast.
+ */
+#   define MAD_F_MLA(hi, lo, x, y)  \
+    ({ mad_fixed64hi_t __hi;  \
+       mad_fixed64lo_t __lo;  \
+       MAD_F_MLX(__hi, __lo, (x), (y));  \
+       asm ("addc %0,%2,%3\n\t"  \
+	    "adde %1,%4,%5"  \
+	    : "=r" (lo), "=r" (hi)  \
+	    : "%r" (lo), "r" (__lo),  \
+	      "%r" (hi), "r" (__hi)  \
+	    : "xer");  \
+    })
+#  endif
+
+#  if defined(OPT_ACCURACY)
+/*
+ * This is slower than the truncating version below it.
+ */
+#   define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result, __round;  \
+       asm ("rotrwi %0,%1,%2"  \
+	    : "=r" (__result)  \
+	    : "r" (lo), "i" (MAD_F_SCALEBITS));  \
+       asm ("extrwi %0,%1,1,0"  \
+	    : "=r" (__round)  \
+	    : "r" (__result));  \
+       asm ("insrwi %0,%1,%2,0"  \
+	    : "+r" (__result)  \
+	    : "r" (hi), "i" (MAD_F_SCALEBITS));  \
+       asm ("add %0,%1,%2"  \
+	    : "=r" (__result)  \
+	    : "%r" (__result), "r" (__round));  \
+       __result;  \
+    })
+#  else
+#   define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result;  \
+       asm ("rotrwi %0,%1,%2"  \
+	    : "=r" (__result)  \
+	    : "r" (lo), "i" (MAD_F_SCALEBITS));  \
+       asm ("insrwi %0,%1,%2,0"  \
+	    : "+r" (__result)  \
+	    : "r" (hi), "i" (MAD_F_SCALEBITS));  \
+       __result;  \
+    })
+#  endif
+
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+
+/* --- Default ------------------------------------------------------------- */
+
+# elif defined(FPM_DEFAULT)
+
+/*
+ * This version is the most portable but it loses significant accuracy.
+ * Furthermore, accuracy is biased against the second argument, so care
+ * should be taken when ordering operands.
+ *
+ * The scale factors are constant as this is not used with SSO.
+ *
+ * Pre-rounding is required to stay within the limits of compliance.
+ */
+#  if defined(OPT_SPEED)
+#   define mad_f_mul(x, y)	(((x) >> 12) * ((y) >> 16))
+#  else
+#   define mad_f_mul(x, y)	((((x) + (1L << 11)) >> 12) *  \
+				 (((y) + (1L << 15)) >> 16))
+#  endif
+
+/* ------------------------------------------------------------------------- */
+
+# else
+#  error "no FPM selected"
+# endif
+
+/* default implementations */
+
+# if !defined(mad_f_mul)
+#  define mad_f_mul(x, y)  \
+    ({ register mad_fixed64hi_t __hi;  \
+       register mad_fixed64lo_t __lo;  \
+       MAD_F_MLX(__hi, __lo, (x), (y));  \
+       mad_f_scale64(__hi, __lo);  \
+    })
+# endif
+
+# if !defined(MAD_F_MLA)
+#  define MAD_F_ML0(hi, lo, x, y)	((lo)  = mad_f_mul((x), (y)))
+#  define MAD_F_MLA(hi, lo, x, y)	((lo) += mad_f_mul((x), (y)))
+#  define MAD_F_MLN(hi, lo)		((lo)  = -(lo))
+#  define MAD_F_MLZ(hi, lo)		((void) (hi), (mad_fixed_t) (lo))
+# endif
+
+# if !defined(MAD_F_ML0)
+#  define MAD_F_ML0(hi, lo, x, y)	MAD_F_MLX((hi), (lo), (x), (y))
+# endif
+
+# if !defined(MAD_F_MLN)
+#  define MAD_F_MLN(hi, lo)		((hi) = ((lo) = -(lo)) ? ~(hi) : -(hi))
+# endif
+
+# if !defined(MAD_F_MLZ)
+#  define MAD_F_MLZ(hi, lo)		mad_f_scale64((hi), (lo))
+# endif
+
+# if !defined(mad_f_scale64)
+#  if defined(OPT_ACCURACY)
+#   define mad_f_scale64(hi, lo)  \
+    ((((mad_fixed_t)  \
+       (((hi) << (32 - (MAD_F_SCALEBITS - 1))) |  \
+	((lo) >> (MAD_F_SCALEBITS - 1)))) + 1) >> 1)
+#  else
+#   define mad_f_scale64(hi, lo)  \
+    ((mad_fixed_t)  \
+     (((hi) << (32 - MAD_F_SCALEBITS)) |  \
+      ((lo) >> MAD_F_SCALEBITS)))
+#  endif
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+# endif
+
+/* C routines */
+
+mad_fixed_t mad_f_abs(mad_fixed_t);
+mad_fixed_t mad_f_div(mad_fixed_t, mad_fixed_t);
+
+# endif

lib/libmad/frame.c

@@ -0,0 +1,503 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: frame.c,v 1.29 2004/02/04 22:59:19 rob Exp $
+ */
+
+# ifdef HAVE_CONFIG_H
+#  include "config.h"
+# endif
+
+# include "global.h"
+
+# include <stdlib.h>
+
+# include "bit.h"
+# include "stream.h"
+# include "frame.h"
+# include "timer.h"
+# include "layer12.h"
+# include "layer3.h"
+
+static
+unsigned long const bitrate_table[5][15] = {
+  /* MPEG-1 */
+  { 0,  32000,  64000,  96000, 128000, 160000, 192000, 224000,  /* Layer I   */
+       256000, 288000, 320000, 352000, 384000, 416000, 448000 },
+  { 0,  32000,  48000,  56000,  64000,  80000,  96000, 112000,  /* Layer II  */
+       128000, 160000, 192000, 224000, 256000, 320000, 384000 },
+  { 0,  32000,  40000,  48000,  56000,  64000,  80000,  96000,  /* Layer III */
+       112000, 128000, 160000, 192000, 224000, 256000, 320000 },
+
+  /* MPEG-2 LSF */
+  { 0,  32000,  48000,  56000,  64000,  80000,  96000, 112000,  /* Layer I   */
+       128000, 144000, 160000, 176000, 192000, 224000, 256000 },
+  { 0,   8000,  16000,  24000,  32000,  40000,  48000,  56000,  /* Layers    */
+        64000,  80000,  96000, 112000, 128000, 144000, 160000 } /* II & III  */
+};
+
+static
+unsigned int const samplerate_table[3] = { 44100, 48000, 32000 };
+
+static
+int (*const decoder_table[3])(struct mad_stream *, struct mad_frame *) = {
+  mad_layer_I,
+  mad_layer_II,
+  mad_layer_III
+};
+
+/*
+ * NAME:	header->init()
+ * DESCRIPTION:	initialize header struct
+ */
+void mad_header_init(struct mad_header *header)
+{
+  header->layer          = 0;
+  header->mode           = 0;
+  header->mode_extension = 0;
+  header->emphasis       = 0;
+
+  header->bitrate        = 0;
+  header->samplerate     = 0;
+
+  header->crc_check      = 0;
+  header->crc_target     = 0;
+
+  header->flags          = 0;
+  header->private_bits   = 0;
+
+  header->duration       = mad_timer_zero;
+}
+
+/*
+ * NAME:	frame->init()
+ * DESCRIPTION:	initialize frame struct
+ */
+void mad_frame_init(struct mad_frame *frame)
+{
+  mad_header_init(&frame->header);
+
+  frame->options = 0;
+
+  frame->overlap = 0;
+  mad_frame_mute(frame);
+}
+
+/*
+ * NAME:	frame->finish()
+ * DESCRIPTION:	deallocate any dynamic memory associated with frame
+ */
+void mad_frame_finish(struct mad_frame *frame)
+{
+  mad_header_finish(&frame->header);
+
+  if (frame->overlap) {
+    free(frame->overlap);
+    frame->overlap = 0;
+  }
+}
+
+/*
+ * NAME:	decode_header()
+ * DESCRIPTION:	read header data and following CRC word
+ */
+static
+int decode_header(struct mad_header *header, struct mad_stream *stream)
+{
+  unsigned int index;
+
+  header->flags        = 0;
+  header->private_bits = 0;
+
+  /* header() */
+
+  /* syncword */
+  mad_bit_skip(&stream->ptr, 11);
+
+  /* MPEG 2.5 indicator (really part of syncword) */
+  if (mad_bit_read(&stream->ptr, 1) == 0)
+    header->flags |= MAD_FLAG_MPEG_2_5_EXT;
+
+  /* ID */
+  if (mad_bit_read(&stream->ptr, 1) == 0)
+    header->flags |= MAD_FLAG_LSF_EXT;
+  else if (header->flags & MAD_FLAG_MPEG_2_5_EXT) {
+    stream->error = MAD_ERROR_LOSTSYNC;
+    return -1;
+  }
+
+  /* layer */
+  header->layer = 4 - mad_bit_read(&stream->ptr, 2);
+
+  if (header->layer == 4) {
+    stream->error = MAD_ERROR_BADLAYER;
+    return -1;
+  }
+
+  /* protection_bit */
+  if (mad_bit_read(&stream->ptr, 1) == 0) {
+    header->flags    |= MAD_FLAG_PROTECTION;
+    header->crc_check = mad_bit_crc(stream->ptr, 16, 0xffff);
+  }
+
+  /* bitrate_index */
+  index = mad_bit_read(&stream->ptr, 4);
+
+  if (index == 15) {
+    stream->error = MAD_ERROR_BADBITRATE;
+    return -1;
+  }
+
+  if (header->flags & MAD_FLAG_LSF_EXT)
+    header->bitrate = bitrate_table[3 + (header->layer >> 1)][index];
+  else
+    header->bitrate = bitrate_table[header->layer - 1][index];
+
+  /* sampling_frequency */
+  index = mad_bit_read(&stream->ptr, 2);
+
+  if (index == 3) {
+    stream->error = MAD_ERROR_BADSAMPLERATE;
+    return -1;
+  }
+
+  header->samplerate = samplerate_table[index];
+
+  if (header->flags & MAD_FLAG_LSF_EXT) {
+    header->samplerate /= 2;
+
+    if (header->flags & MAD_FLAG_MPEG_2_5_EXT)
+      header->samplerate /= 2;
+  }
+
+  /* padding_bit */
+  if (mad_bit_read(&stream->ptr, 1))
+    header->flags |= MAD_FLAG_PADDING;
+
+  /* private_bit */
+  if (mad_bit_read(&stream->ptr, 1))
+    header->private_bits |= MAD_PRIVATE_HEADER;
+
+  /* mode */
+  header->mode = 3 - mad_bit_read(&stream->ptr, 2);
+
+  /* mode_extension */
+  header->mode_extension = mad_bit_read(&stream->ptr, 2);
+
+  /* copyright */
+  if (mad_bit_read(&stream->ptr, 1))
+    header->flags |= MAD_FLAG_COPYRIGHT;
+
+  /* original/copy */
+  if (mad_bit_read(&stream->ptr, 1))
+    header->flags |= MAD_FLAG_ORIGINAL;
+
+  /* emphasis */
+  header->emphasis = mad_bit_read(&stream->ptr, 2);
+
+# if defined(OPT_STRICT)
+  /*
+   * ISO/IEC 11172-3 says this is a reserved emphasis value, but
+   * streams exist which use it anyway. Since the value is not important
+   * to the decoder proper, we allow it unless OPT_STRICT is defined.
+   */
+  if (header->emphasis == MAD_EMPHASIS_RESERVED) {
+    stream->error = MAD_ERROR_BADEMPHASIS;
+    return -1;
+  }
+# endif
+
+  /* error_check() */
+
+  /* crc_check */
+  if (header->flags & MAD_FLAG_PROTECTION)
+    header->crc_target = mad_bit_read(&stream->ptr, 16);
+
+  return 0;
+}
+
+/*
+ * NAME:	free_bitrate()
+ * DESCRIPTION:	attempt to discover the bitstream's free bitrate
+ */
+static
+int free_bitrate(struct mad_stream *stream, struct mad_header const *header)
+{
+  struct mad_bitptr keep_ptr;
+  unsigned long rate = 0;
+  unsigned int pad_slot, slots_per_frame;
+  unsigned char const *ptr = 0;
+
+  keep_ptr = stream->ptr;
+
+  pad_slot = (header->flags & MAD_FLAG_PADDING) ? 1 : 0;
+  slots_per_frame = (header->layer == MAD_LAYER_III &&
+		     (header->flags & MAD_FLAG_LSF_EXT)) ? 72 : 144;
+
+  while (mad_stream_sync(stream) == 0) {
+    struct mad_stream peek_stream;
+    struct mad_header peek_header;
+
+    peek_stream = *stream;
+    peek_header = *header;
+
+    if (decode_header(&peek_header, &peek_stream) == 0 &&
+	peek_header.layer == header->layer &&
+	peek_header.samplerate == header->samplerate) {
+      unsigned int N;
+
+      ptr = mad_bit_nextbyte(&stream->ptr);
+
+      N = ptr - stream->this_frame;
+
+      if (header->layer == MAD_LAYER_I) {
+	rate = (unsigned long) header->samplerate *
+	  (N - 4 * pad_slot + 4) / 48 / 1000;
+      }
+      else {
+	rate = (unsigned long) header->samplerate *
+	  (N - pad_slot + 1) / slots_per_frame / 1000;
+      }
+
+      if (rate >= 8)
+	break;
+    }
+
+    mad_bit_skip(&stream->ptr, 8);
+  }
+
+  stream->ptr = keep_ptr;
+
+  if (rate < 8 || (header->layer == MAD_LAYER_III && rate > 640)) {
+    stream->error = MAD_ERROR_LOSTSYNC;
+    return -1;
+  }
+
+  stream->freerate = rate * 1000;
+
+  return 0;
+}
+
+/*
+ * NAME:	header->decode()
+ * DESCRIPTION:	read the next frame header from the stream
+ */
+int mad_header_decode(struct mad_header *header, struct mad_stream *stream)
+{
+  register unsigned char const *ptr, *end;
+  unsigned int pad_slot, N;
+
+  ptr = stream->next_frame;
+  end = stream->bufend;
+
+  if (ptr == 0) {
+    stream->error = MAD_ERROR_BUFPTR;
+    goto fail;
+  }
+
+  /* stream skip */
+  if (stream->skiplen) {
+    if (!stream->sync)
+      ptr = stream->this_frame;
+
+    if (end - ptr < stream->skiplen) {
+      stream->skiplen   -= end - ptr;
+      stream->next_frame = end;
+
+      stream->error = MAD_ERROR_BUFLEN;
+      goto fail;
+    }
+
+    ptr += stream->skiplen;
+    stream->skiplen = 0;
+
+    stream->sync = 1;
+  }
+
+ sync:
+  /* synchronize */
+  if (stream->sync) {
+    if (end - ptr < MAD_BUFFER_GUARD) {
+      stream->next_frame = ptr;
+
+      stream->error = MAD_ERROR_BUFLEN;
+      goto fail;
+    }
+    else if (!(ptr[0] == 0xff && (ptr[1] & 0xe0) == 0xe0)) {
+      /* mark point where frame sync word was expected */
+      stream->this_frame = ptr;
+      stream->next_frame = ptr + 1;
+
+      stream->error = MAD_ERROR_LOSTSYNC;
+      goto fail;
+    }
+  }
+  else {
+    mad_bit_init(&stream->ptr, ptr);
+
+    if (mad_stream_sync(stream) == -1) {
+      if (end - stream->next_frame >= MAD_BUFFER_GUARD)
+	stream->next_frame = end - MAD_BUFFER_GUARD;
+
+      stream->error = MAD_ERROR_BUFLEN;
+      goto fail;
+    }
+
+    ptr = mad_bit_nextbyte(&stream->ptr);
+  }
+
+  /* begin processing */
+  stream->this_frame = ptr;
+  stream->next_frame = ptr + 1;  /* possibly bogus sync word */
+
+  mad_bit_init(&stream->ptr, stream->this_frame);
+
+  if (decode_header(header, stream) == -1)
+    goto fail;
+
+  /* calculate frame duration */
+  mad_timer_set(&header->duration, 0,
+		32 * MAD_NSBSAMPLES(header), header->samplerate);
+
+  /* calculate free bit rate */
+  if (header->bitrate == 0) {
+    if ((stream->freerate == 0 || !stream->sync ||
+	 (header->layer == MAD_LAYER_III && stream->freerate > 640000)) &&
+	free_bitrate(stream, header) == -1)
+      goto fail;
+
+    header->bitrate = stream->freerate;
+    header->flags  |= MAD_FLAG_FREEFORMAT;
+  }
+
+  /* calculate beginning of next frame */
+  pad_slot = (header->flags & MAD_FLAG_PADDING) ? 1 : 0;
+
+  if (header->layer == MAD_LAYER_I)
+    N = ((12 * header->bitrate / header->samplerate) + pad_slot) * 4;
+  else {
+    unsigned int slots_per_frame;
+
+    slots_per_frame = (header->layer == MAD_LAYER_III &&
+		       (header->flags & MAD_FLAG_LSF_EXT)) ? 72 : 144;
+
+    N = (slots_per_frame * header->bitrate / header->samplerate) + pad_slot;
+  }
+
+  /* verify there is enough data left in buffer to decode this frame */
+  if (N + MAD_BUFFER_GUARD > end - stream->this_frame) {
+    stream->next_frame = stream->this_frame;
+
+    stream->error = MAD_ERROR_BUFLEN;
+    goto fail;
+  }
+
+  stream->next_frame = stream->this_frame + N;
+
+  if (!stream->sync) {
+    /* check that a valid frame header follows this frame */
+
+    ptr = stream->next_frame;
+    if (!(ptr[0] == 0xff && (ptr[1] & 0xe0) == 0xe0)) {
+      ptr = stream->next_frame = stream->this_frame + 1;
+      goto sync;
+    }
+
+    stream->sync = 1;
+  }
+
+  header->flags |= MAD_FLAG_INCOMPLETE;
+
+  return 0;
+
+ fail:
+  stream->sync = 0;
+
+  return -1;
+}
+
+/*
+ * NAME:	frame->decode()
+ * DESCRIPTION:	decode a single frame from a bitstream
+ */
+int mad_frame_decode(struct mad_frame *frame, struct mad_stream *stream)
+{
+  frame->options = stream->options;
+
+  /* header() */
+  /* error_check() */
+
+  if (!(frame->header.flags & MAD_FLAG_INCOMPLETE) &&
+      mad_header_decode(&frame->header, stream) == -1)
+    goto fail;
+
+  /* audio_data() */
+
+  frame->header.flags &= ~MAD_FLAG_INCOMPLETE;
+
+  if (decoder_table[frame->header.layer - 1](stream, frame) == -1) {
+    if (!MAD_RECOVERABLE(stream->error))
+      stream->next_frame = stream->this_frame;
+
+    goto fail;
+  }
+
+  /* ancillary_data() */
+
+  if (frame->header.layer != MAD_LAYER_III) {
+    struct mad_bitptr next_frame;
+
+    mad_bit_init(&next_frame, stream->next_frame);
+
+    stream->anc_ptr    = stream->ptr;
+    stream->anc_bitlen = mad_bit_length(&stream->ptr, &next_frame);
+
+    mad_bit_finish(&next_frame);
+  }
+
+  return 0;
+
+ fail:
+  stream->anc_bitlen = 0;
+  return -1;
+}
+
+/*
+ * NAME:	frame->mute()
+ * DESCRIPTION:	zero all subband values so the frame becomes silent
+ */
+void mad_frame_mute(struct mad_frame *frame)
+{
+  unsigned int s, sb;
+
+  for (s = 0; s < 36; ++s) {
+    for (sb = 0; sb < 32; ++sb) {
+      frame->sbsample[0][s][sb] =
+      frame->sbsample[1][s][sb] = 0;
+    }
+  }
+
+  if (frame->overlap) {
+    for (s = 0; s < 18; ++s) {
+      for (sb = 0; sb < 32; ++sb) {
+	(*frame->overlap)[0][sb][s] =
+	(*frame->overlap)[1][sb][s] = 0;
+      }
+    }
+  }
+}

lib/libmad/frame.h

@@ -0,0 +1,118 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: frame.h,v 1.20 2004/01/23 09:41:32 rob Exp $
+ */
+
+# ifndef LIBMAD_FRAME_H
+# define LIBMAD_FRAME_H
+
+# include "fixed.h"
+# include "timer.h"
+# include "stream.h"
+
+enum mad_layer {
+  MAD_LAYER_I   = 1,			/* Layer I */
+  MAD_LAYER_II  = 2,			/* Layer II */
+  MAD_LAYER_III = 3			/* Layer III */
+};
+
+enum mad_mode {
+  MAD_MODE_SINGLE_CHANNEL = 0,		/* single channel */
+  MAD_MODE_DUAL_CHANNEL	  = 1,		/* dual channel */
+  MAD_MODE_JOINT_STEREO	  = 2,		/* joint (MS/intensity) stereo */
+  MAD_MODE_STEREO	  = 3		/* normal LR stereo */
+};
+
+enum mad_emphasis {
+  MAD_EMPHASIS_NONE	  = 0,		/* no emphasis */
+  MAD_EMPHASIS_50_15_US	  = 1,		/* 50/15 microseconds emphasis */
+  MAD_EMPHASIS_CCITT_J_17 = 3,		/* CCITT J.17 emphasis */
+  MAD_EMPHASIS_RESERVED   = 2		/* unknown emphasis */
+};
+
+struct mad_header {
+  enum mad_layer layer;			/* audio layer (1, 2, or 3) */
+  enum mad_mode mode;			/* channel mode (see above) */
+  int mode_extension;			/* additional mode info */
+  enum mad_emphasis emphasis;		/* de-emphasis to use (see above) */
+
+  unsigned long bitrate;		/* stream bitrate (bps) */
+  unsigned int samplerate;		/* sampling frequency (Hz) */
+
+  unsigned short crc_check;		/* frame CRC accumulator */
+  unsigned short crc_target;		/* final target CRC checksum */
+
+  int flags;				/* flags (see below) */
+  int private_bits;			/* private bits (see below) */
+
+  mad_timer_t duration;			/* audio playing time of frame */
+};
+
+struct mad_frame {
+  struct mad_header header;		/* MPEG audio header */
+
+  int options;				/* decoding options (from stream) */
+
+  mad_fixed_t sbsample[2][36][32];	/* synthesis subband filter samples */
+  mad_fixed_t (*overlap)[2][32][18];	/* Layer III block overlap data */
+};
+
+# define MAD_NCHANNELS(header)		((header)->mode ? 2 : 1)
+# define MAD_NSBSAMPLES(header)  \
+  ((header)->layer == MAD_LAYER_I ? 12 :  \
+   (((header)->layer == MAD_LAYER_III &&  \
+     ((header)->flags & MAD_FLAG_LSF_EXT)) ? 18 : 36))
+
+enum {
+  MAD_FLAG_NPRIVATE_III	= 0x0007,	/* number of Layer III private bits */
+  MAD_FLAG_INCOMPLETE	= 0x0008,	/* header but not data is decoded */
+
+  MAD_FLAG_PROTECTION	= 0x0010,	/* frame has CRC protection */
+  MAD_FLAG_COPYRIGHT	= 0x0020,	/* frame is copyright */
+  MAD_FLAG_ORIGINAL	= 0x0040,	/* frame is original (else copy) */
+  MAD_FLAG_PADDING	= 0x0080,	/* frame has additional slot */
+
+  MAD_FLAG_I_STEREO	= 0x0100,	/* uses intensity joint stereo */
+  MAD_FLAG_MS_STEREO	= 0x0200,	/* uses middle/side joint stereo */
+  MAD_FLAG_FREEFORMAT	= 0x0400,	/* uses free format bitrate */
+
+  MAD_FLAG_LSF_EXT	= 0x1000,	/* lower sampling freq. extension */
+  MAD_FLAG_MC_EXT	= 0x2000,	/* multichannel audio extension */
+  MAD_FLAG_MPEG_2_5_EXT	= 0x4000	/* MPEG 2.5 (unofficial) extension */
+};
+
+enum {
+  MAD_PRIVATE_HEADER	= 0x0100,	/* header private bit */
+  MAD_PRIVATE_III	= 0x001f	/* Layer III private bits (up to 5) */
+};
+
+void mad_header_init(struct mad_header *);
+
+# define mad_header_finish(header)  /* nothing */
+
+int mad_header_decode(struct mad_header *, struct mad_stream *);
+
+void mad_frame_init(struct mad_frame *);
+void mad_frame_finish(struct mad_frame *);
+
+int mad_frame_decode(struct mad_frame *, struct mad_stream *);
+
+void mad_frame_mute(struct mad_frame *);
+
+# endif

lib/libmad/global.h

@@ -0,0 +1,58 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: global.h,v 1.11 2004/01/23 09:41:32 rob Exp $
+ */
+
+# ifndef LIBMAD_GLOBAL_H
+# define LIBMAD_GLOBAL_H
+
+/* conditional debugging */
+
+# if defined(DEBUG) && defined(NDEBUG)
+#  error "cannot define both DEBUG and NDEBUG"
+# endif
+
+# if defined(DEBUG)
+#  include <stdio.h>
+# endif
+
+/* conditional features */
+
+# if defined(OPT_SPEED) && defined(OPT_ACCURACY)
+#  error "cannot optimize for both speed and accuracy"
+# endif
+
+# if defined(OPT_SPEED) && !defined(OPT_SSO)
+#  define OPT_SSO
+# endif
+
+# if defined(HAVE_UNISTD_H) && defined(HAVE_WAITPID) &&  \
+    defined(HAVE_FCNTL) && defined(HAVE_PIPE) && defined(HAVE_FORK)
+#  define USE_ASYNC
+# endif
+
+# if !defined(HAVE_ASSERT_H)
+#  if defined(NDEBUG)
+#   define assert(x)	/* nothing */
+#  else
+#   define assert(x)	do { if (!(x)) abort(); } while (0)
+#  endif
+# endif
+
+# endif

lib/libmad/huffman.h

@@ -0,0 +1,66 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: huffman.h,v 1.11 2004/01/23 09:41:32 rob Exp $
+ */
+
+# ifndef LIBMAD_HUFFMAN_H
+# define LIBMAD_HUFFMAN_H
+
+union huffquad {
+  struct {
+    unsigned short final  :  1;
+    unsigned short bits   :  3;
+    unsigned short offset : 12;
+  } ptr;
+  struct {
+    unsigned short final  :  1;
+    unsigned short hlen   :  3;
+    unsigned short v      :  1;
+    unsigned short w      :  1;
+    unsigned short x      :  1;
+    unsigned short y      :  1;
+  } value;
+  unsigned short final    :  1;
+};
+
+union huffpair {
+  struct {
+    unsigned short final  :  1;
+    unsigned short bits   :  3;
+    unsigned short offset : 12;
+  } ptr;
+  struct {
+    unsigned short final  :  1;
+    unsigned short hlen   :  3;
+    unsigned short x      :  4;
+    unsigned short y      :  4;
+  } value;
+  unsigned short final    :  1;
+};
+
+struct hufftable {
+  union huffpair const *table;
+  unsigned short linbits;
+  unsigned short startbits;
+};
+
+extern union huffquad const *const mad_huff_quad_table[2];
+extern struct hufftable const mad_huff_pair_table[32];
+
+# endif

lib/libmad/imdct_s.dat

@@ -0,0 +1,62 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: imdct_s.dat,v 1.8 2004/01/23 09:41:32 rob Exp $
+ */
+
+  /*  0 */  {  MAD_F(0x09bd7ca0) /*  0.608761429 */,
+	      -MAD_F(0x0ec835e8) /* -0.923879533 */,
+	      -MAD_F(0x0216a2a2) /* -0.130526192 */,
+	       MAD_F(0x0fdcf549) /*  0.991444861 */,
+	      -MAD_F(0x061f78aa) /* -0.382683432 */,
+	      -MAD_F(0x0cb19346) /* -0.793353340 */ },
+
+  /*  6 */  { -MAD_F(0x0cb19346) /* -0.793353340 */,
+	       MAD_F(0x061f78aa) /*  0.382683432 */,
+	       MAD_F(0x0fdcf549) /*  0.991444861 */,
+	       MAD_F(0x0216a2a2) /*  0.130526192 */,
+	      -MAD_F(0x0ec835e8) /* -0.923879533 */,
+	      -MAD_F(0x09bd7ca0) /* -0.608761429 */ },
+
+  /*  1 */  {  MAD_F(0x061f78aa) /*  0.382683432 */,
+	      -MAD_F(0x0ec835e8) /* -0.923879533 */,
+	       MAD_F(0x0ec835e8) /*  0.923879533 */,
+	      -MAD_F(0x061f78aa) /* -0.382683432 */,
+	      -MAD_F(0x061f78aa) /* -0.382683432 */,
+	       MAD_F(0x0ec835e8) /*  0.923879533 */ },
+
+  /*  7 */  { -MAD_F(0x0ec835e8) /* -0.923879533 */,
+	      -MAD_F(0x061f78aa) /* -0.382683432 */,
+	       MAD_F(0x061f78aa) /*  0.382683432 */,
+	       MAD_F(0x0ec835e8) /*  0.923879533 */,
+	       MAD_F(0x0ec835e8) /*  0.923879533 */,
+	       MAD_F(0x061f78aa) /*  0.382683432 */ },
+
+  /*  2 */  {  MAD_F(0x0216a2a2) /*  0.130526192 */,
+	      -MAD_F(0x061f78aa) /* -0.382683432 */,
+	       MAD_F(0x09bd7ca0) /*  0.608761429 */,
+	      -MAD_F(0x0cb19346) /* -0.793353340 */,
+	       MAD_F(0x0ec835e8) /*  0.923879533 */,
+	      -MAD_F(0x0fdcf549) /* -0.991444861 */ },
+
+  /*  8 */  { -MAD_F(0x0fdcf549) /* -0.991444861 */,
+	      -MAD_F(0x0ec835e8) /* -0.923879533 */,
+	      -MAD_F(0x0cb19346) /* -0.793353340 */,
+	      -MAD_F(0x09bd7ca0) /* -0.608761429 */,
+	      -MAD_F(0x061f78aa) /* -0.382683432 */,
+	      -MAD_F(0x0216a2a2) /* -0.130526192 */ }

lib/libmad/install-sh

@@ -0,0 +1,276 @@
+#!/bin/sh
+#
+# install - install a program, script, or datafile
+# This comes from X11R5 (mit/util/scripts/install.sh).
+#
+# Copyright 1991 by the Massachusetts Institute of Technology
+#
+# Permission to use, copy, modify, distribute, and sell this software and its
+# documentation for any purpose is hereby granted without fee, provided that
+# the above copyright notice appear in all copies and that both that
+# copyright notice and this permission notice appear in supporting
+# documentation, and that the name of M.I.T. not be used in advertising or
+# publicity pertaining to distribution of the software without specific,
+# written prior permission.  M.I.T. makes no representations about the
+# suitability of this software for any purpose.  It is provided "as is"
+# without express or implied warranty.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# `make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.  It can only install one file at a time, a restriction
+# shared with many OS's install programs.
+
+
+# set DOITPROG to echo to test this script
+
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit="${DOITPROG-}"
+
+
+# put in absolute paths if you don't have them in your path; or use env. vars.
+
+mvprog="${MVPROG-mv}"
+cpprog="${CPPROG-cp}"
+chmodprog="${CHMODPROG-chmod}"
+chownprog="${CHOWNPROG-chown}"
+chgrpprog="${CHGRPPROG-chgrp}"
+stripprog="${STRIPPROG-strip}"
+rmprog="${RMPROG-rm}"
+mkdirprog="${MKDIRPROG-mkdir}"
+
+transformbasename=""
+transform_arg=""
+instcmd="$mvprog"
+chmodcmd="$chmodprog 0755"
+chowncmd=""
+chgrpcmd=""
+stripcmd=""
+rmcmd="$rmprog -f"
+mvcmd="$mvprog"
+src=""
+dst=""
+dir_arg=""
+
+while [ x"$1" != x ]; do
+    case $1 in
+	-c) instcmd=$cpprog
+	    shift
+	    continue;;
+
+	-d) dir_arg=true
+	    shift
+	    continue;;
+
+	-m) chmodcmd="$chmodprog $2"
+	    shift
+	    shift
+	    continue;;
+
+	-o) chowncmd="$chownprog $2"
+	    shift
+	    shift
+	    continue;;
+
+	-g) chgrpcmd="$chgrpprog $2"
+	    shift
+	    shift
+	    continue;;
+
+	-s) stripcmd=$stripprog
+	    shift
+	    continue;;
+
+	-t=*) transformarg=`echo $1 | sed 's/-t=//'`
+	    shift
+	    continue;;
+
+	-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
+	    shift
+	    continue;;
+
+	*)  if [ x"$src" = x ]
+	    then
+		src=$1
+	    else
+		# this colon is to work around a 386BSD /bin/sh bug
+		:
+		dst=$1
+	    fi
+	    shift
+	    continue;;
+    esac
+done
+
+if [ x"$src" = x ]
+then
+	echo "$0: no input file specified" >&2
+	exit 1
+else
+	:
+fi
+
+if [ x"$dir_arg" != x ]; then
+	dst=$src
+	src=""
+
+	if [ -d "$dst" ]; then
+		instcmd=:
+		chmodcmd=""
+	else
+		instcmd=$mkdirprog
+	fi
+else
+
+# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
+# might cause directories to be created, which would be especially bad
+# if $src (and thus $dsttmp) contains '*'.
+
+	if [ -f "$src" ] || [ -d "$src" ]
+	then
+		:
+	else
+		echo "$0: $src does not exist" >&2
+		exit 1
+	fi
+
+	if [ x"$dst" = x ]
+	then
+		echo "$0: no destination specified" >&2
+		exit 1
+	else
+		:
+	fi
+
+# If destination is a directory, append the input filename; if your system
+# does not like double slashes in filenames, you may need to add some logic
+
+	if [ -d "$dst" ]
+	then
+		dst=$dst/`basename "$src"`
+	else
+		:
+	fi
+fi
+
+## this sed command emulates the dirname command
+dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
+
+# Make sure that the destination directory exists.
+#  this part is taken from Noah Friedman's mkinstalldirs script
+
+# Skip lots of stat calls in the usual case.
+if [ ! -d "$dstdir" ]; then
+defaultIFS='
+	'
+IFS="${IFS-$defaultIFS}"
+
+oIFS=$IFS
+# Some sh's can't handle IFS=/ for some reason.
+IFS='%'
+set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
+IFS=$oIFS
+
+pathcomp=''
+
+while [ $# -ne 0 ] ; do
+	pathcomp=$pathcomp$1
+	shift
+
+	if [ ! -d "$pathcomp" ] ;
+        then
+		$mkdirprog "$pathcomp"
+	else
+		:
+	fi
+
+	pathcomp=$pathcomp/
+done
+fi
+
+if [ x"$dir_arg" != x ]
+then
+	$doit $instcmd "$dst" &&
+
+	if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dst"; else : ; fi &&
+	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dst"; else : ; fi &&
+	if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dst"; else : ; fi &&
+	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dst"; else : ; fi
+else
+
+# If we're going to rename the final executable, determine the name now.
+
+	if [ x"$transformarg" = x ]
+	then
+		dstfile=`basename "$dst"`
+	else
+		dstfile=`basename "$dst" $transformbasename |
+			sed $transformarg`$transformbasename
+	fi
+
+# don't allow the sed command to completely eliminate the filename
+
+	if [ x"$dstfile" = x ]
+	then
+		dstfile=`basename "$dst"`
+	else
+		:
+	fi
+
+# Make a couple of temp file names in the proper directory.
+
+	dsttmp=$dstdir/#inst.$$#
+	rmtmp=$dstdir/#rm.$$#
+
+# Trap to clean up temp files at exit.
+
+	trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
+	trap '(exit $?); exit' 1 2 13 15
+
+# Move or copy the file name to the temp name
+
+	$doit $instcmd "$src" "$dsttmp" &&
+
+# and set any options; do chmod last to preserve setuid bits
+
+# If any of these fail, we abort the whole thing.  If we want to
+# ignore errors from any of these, just make sure not to ignore
+# errors from the above "$doit $instcmd $src $dsttmp" command.
+
+	if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp"; else :;fi &&
+	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp"; else :;fi &&
+	if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dsttmp"; else :;fi &&
+	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp"; else :;fi &&
+
+# Now remove or move aside any old file at destination location.  We try this
+# two ways since rm can't unlink itself on some systems and the destination
+# file might be busy for other reasons.  In this case, the final cleanup
+# might fail but the new file should still install successfully.
+
+{
+	if [ -f "$dstdir/$dstfile" ]
+	then
+		$doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null ||
+		$doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null ||
+		{
+		  echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
+		  (exit 1); exit
+		}
+	else
+		:
+	fi
+} &&
+
+# Now rename the file to the real destination.
+
+	$doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
+
+fi &&
+
+# The final little trick to "correctly" pass the exit status to the exit trap.
+
+{
+	(exit 0); exit
+}

lib/libmad/layer12.c

@@ -0,0 +1,534 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: layer12.c,v 1.17 2004/02/05 09:02:39 rob Exp $
+ */
+
+# ifdef HAVE_CONFIG_H
+#  include "config.h"
+# endif
+
+# include "global.h"
+
+# ifdef HAVE_LIMITS_H
+#  include <limits.h>
+# else
+#  define CHAR_BIT  8
+# endif
+
+# include "fixed.h"
+# include "bit.h"
+# include "stream.h"
+# include "frame.h"
+# include "layer12.h"
+
+/*
+ * scalefactor table
+ * used in both Layer I and Layer II decoding
+ */
+static
+mad_fixed_t const sf_table[64] = {
+# include "sf_table.dat"
+};
+
+/* --- Layer I ------------------------------------------------------------- */
+
+/* linear scaling table */
+static
+mad_fixed_t const linear_table[14] = {
+  MAD_F(0x15555555),  /* 2^2  / (2^2  - 1) == 1.33333333333333 */
+  MAD_F(0x12492492),  /* 2^3  / (2^3  - 1) == 1.14285714285714 */
+  MAD_F(0x11111111),  /* 2^4  / (2^4  - 1) == 1.06666666666667 */
+  MAD_F(0x10842108),  /* 2^5  / (2^5  - 1) == 1.03225806451613 */
+  MAD_F(0x10410410),  /* 2^6  / (2^6  - 1) == 1.01587301587302 */
+  MAD_F(0x10204081),  /* 2^7  / (2^7  - 1) == 1.00787401574803 */
+  MAD_F(0x10101010),  /* 2^8  / (2^8  - 1) == 1.00392156862745 */
+  MAD_F(0x10080402),  /* 2^9  / (2^9  - 1) == 1.00195694716243 */
+  MAD_F(0x10040100),  /* 2^10 / (2^10 - 1) == 1.00097751710655 */
+  MAD_F(0x10020040),  /* 2^11 / (2^11 - 1) == 1.00048851978505 */
+  MAD_F(0x10010010),  /* 2^12 / (2^12 - 1) == 1.00024420024420 */
+  MAD_F(0x10008004),  /* 2^13 / (2^13 - 1) == 1.00012208521548 */
+  MAD_F(0x10004001),  /* 2^14 / (2^14 - 1) == 1.00006103888177 */
+  MAD_F(0x10002000)   /* 2^15 / (2^15 - 1) == 1.00003051850948 */
+};
+
+/*
+ * NAME:	I_sample()
+ * DESCRIPTION:	decode one requantized Layer I sample from a bitstream
+ */
+static
+mad_fixed_t I_sample(struct mad_bitptr *ptr, unsigned int nb)
+{
+  mad_fixed_t sample;
+
+  sample = mad_bit_read(ptr, nb);
+
+  /* invert most significant bit, extend sign, then scale to fixed format */
+
+  sample ^= 1 << (nb - 1);
+  sample |= -(sample & (1 << (nb - 1)));
+
+  sample <<= MAD_F_FRACBITS - (nb - 1);
+
+  /* requantize the sample */
+
+  /* s'' = (2^nb / (2^nb - 1)) * (s''' + 2^(-nb + 1)) */
+
+  sample += MAD_F_ONE >> (nb - 1);
+
+  return mad_f_mul(sample, linear_table[nb - 2]);
+
+  /* s' = factor * s'' */
+  /* (to be performed by caller) */
+}
+
+/*
+ * NAME:	layer->I()
+ * DESCRIPTION:	decode a single Layer I frame
+ */
+int mad_layer_I(struct mad_stream *stream, struct mad_frame *frame)
+{
+  struct mad_header *header = &frame->header;
+  unsigned int nch, bound, ch, s, sb, nb;
+  unsigned char allocation[2][32], scalefactor[2][32];
+
+  nch = MAD_NCHANNELS(header);
+
+  bound = 32;
+  if (header->mode == MAD_MODE_JOINT_STEREO) {
+    header->flags |= MAD_FLAG_I_STEREO;
+    bound = 4 + header->mode_extension * 4;
+  }
+
+  /* check CRC word */
+
+  if (header->flags & MAD_FLAG_PROTECTION) {
+    header->crc_check =
+      mad_bit_crc(stream->ptr, 4 * (bound * nch + (32 - bound)),
+		  header->crc_check);
+
+    if (header->crc_check != header->crc_target &&
+	!(frame->options & MAD_OPTION_IGNORECRC)) {
+      stream->error = MAD_ERROR_BADCRC;
+      return -1;
+    }
+  }
+
+  /* decode bit allocations */
+
+  for (sb = 0; sb < bound; ++sb) {
+    for (ch = 0; ch < nch; ++ch) {
+      nb = mad_bit_read(&stream->ptr, 4);
+
+      if (nb == 15) {
+	stream->error = MAD_ERROR_BADBITALLOC;
+	return -1;
+      }
+
+      allocation[ch][sb] = nb ? nb + 1 : 0;
+    }
+  }
+
+  for (sb = bound; sb < 32; ++sb) {
+    nb = mad_bit_read(&stream->ptr, 4);
+
+    if (nb == 15) {
+      stream->error = MAD_ERROR_BADBITALLOC;
+      return -1;
+    }
+
+    allocation[0][sb] =
+    allocation[1][sb] = nb ? nb + 1 : 0;
+  }
+
+  /* decode scalefactors */
+
+  for (sb = 0; sb < 32; ++sb) {
+    for (ch = 0; ch < nch; ++ch) {
+      if (allocation[ch][sb]) {
+	scalefactor[ch][sb] = mad_bit_read(&stream->ptr, 6);
+
+# if defined(OPT_STRICT)
+	/*
+	 * Scalefactor index 63 does not appear in Table B.1 of
+	 * ISO/IEC 11172-3. Nonetheless, other implementations accept it,
+	 * so we only reject it if OPT_STRICT is defined.
+	 */
+	if (scalefactor[ch][sb] == 63) {
+	  stream->error = MAD_ERROR_BADSCALEFACTOR;
+	  return -1;
+	}
+# endif
+      }
+    }
+  }
+
+  /* decode samples */
+
+  for (s = 0; s < 12; ++s) {
+    for (sb = 0; sb < bound; ++sb) {
+      for (ch = 0; ch < nch; ++ch) {
+	nb = allocation[ch][sb];
+	frame->sbsample[ch][s][sb] = nb ?
+	  mad_f_mul(I_sample(&stream->ptr, nb),
+		    sf_table[scalefactor[ch][sb]]) : 0;
+      }
+    }
+
+    for (sb = bound; sb < 32; ++sb) {
+      if ((nb = allocation[0][sb])) {
+	mad_fixed_t sample;
+
+	sample = I_sample(&stream->ptr, nb);
+
+	for (ch = 0; ch < nch; ++ch) {
+	  frame->sbsample[ch][s][sb] =
+	    mad_f_mul(sample, sf_table[scalefactor[ch][sb]]);
+	}
+      }
+      else {
+	for (ch = 0; ch < nch; ++ch)
+	  frame->sbsample[ch][s][sb] = 0;
+      }
+    }
+  }
+
+  return 0;
+}
+
+/* --- Layer II ------------------------------------------------------------ */
+
+/* possible quantization per subband table */
+static
+struct {
+  unsigned int sblimit;
+  unsigned char const offsets[30];
+} const sbquant_table[5] = {
+  /* ISO/IEC 11172-3 Table B.2a */
+  { 27, { 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3,	/* 0 */
+	  3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0 } },
+  /* ISO/IEC 11172-3 Table B.2b */
+  { 30, { 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3,	/* 1 */
+	  3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0 } },
+  /* ISO/IEC 11172-3 Table B.2c */
+  {  8, { 5, 5, 2, 2, 2, 2, 2, 2 } },				/* 2 */
+  /* ISO/IEC 11172-3 Table B.2d */
+  { 12, { 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 } },		/* 3 */
+  /* ISO/IEC 13818-3 Table B.1 */
+  { 30, { 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1,	/* 4 */
+	  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } }
+};
+
+/* bit allocation table */
+static
+struct {
+  unsigned short nbal;
+  unsigned short offset;
+} const bitalloc_table[8] = {
+  { 2, 0 },  /* 0 */
+  { 2, 3 },  /* 1 */
+  { 3, 3 },  /* 2 */
+  { 3, 1 },  /* 3 */
+  { 4, 2 },  /* 4 */
+  { 4, 3 },  /* 5 */
+  { 4, 4 },  /* 6 */
+  { 4, 5 }   /* 7 */
+};
+
+/* offsets into quantization class table */
+static
+unsigned char const offset_table[6][15] = {
+  { 0, 1, 16                                             },  /* 0 */
+  { 0, 1,  2, 3, 4, 5, 16                                },  /* 1 */
+  { 0, 1,  2, 3, 4, 5,  6, 7,  8,  9, 10, 11, 12, 13, 14 },  /* 2 */
+  { 0, 1,  3, 4, 5, 6,  7, 8,  9, 10, 11, 12, 13, 14, 15 },  /* 3 */
+  { 0, 1,  2, 3, 4, 5,  6, 7,  8,  9, 10, 11, 12, 13, 16 },  /* 4 */
+  { 0, 2,  4, 5, 6, 7,  8, 9, 10, 11, 12, 13, 14, 15, 16 }   /* 5 */
+};
+
+/* quantization class table */
+static
+struct quantclass {
+  unsigned short nlevels;
+  unsigned char group;
+  unsigned char bits;
+  mad_fixed_t C;
+  mad_fixed_t D;
+} const qc_table[17] = {
+# include "qc_table.dat"
+};
+
+/*
+ * NAME:	II_samples()
+ * DESCRIPTION:	decode three requantized Layer II samples from a bitstream
+ */
+static
+void II_samples(struct mad_bitptr *ptr,
+		struct quantclass const *quantclass,
+		mad_fixed_t output[3])
+{
+  unsigned int nb, s, sample[3];
+
+  if ((nb = quantclass->group)) {
+    unsigned int c, nlevels;
+
+    /* degrouping */
+    c = mad_bit_read(ptr, quantclass->bits);
+    nlevels = quantclass->nlevels;
+
+    for (s = 0; s < 3; ++s) {
+      sample[s] = c % nlevels;
+      c /= nlevels;
+    }
+  }
+  else {
+    nb = quantclass->bits;
+
+    for (s = 0; s < 3; ++s)
+      sample[s] = mad_bit_read(ptr, nb);
+  }
+
+  for (s = 0; s < 3; ++s) {
+    mad_fixed_t requantized;
+
+    /* invert most significant bit, extend sign, then scale to fixed format */
+
+    requantized  = sample[s] ^ (1 << (nb - 1));
+    requantized |= -(requantized & (1 << (nb - 1)));
+
+    requantized <<= MAD_F_FRACBITS - (nb - 1);
+
+    /* requantize the sample */
+
+    /* s'' = C * (s''' + D) */
+
+    output[s] = mad_f_mul(requantized + quantclass->D, quantclass->C);
+
+    /* s' = factor * s'' */
+    /* (to be performed by caller) */
+  }
+}
+
+/*
+ * NAME:	layer->II()
+ * DESCRIPTION:	decode a single Layer II frame
+ */
+int mad_layer_II(struct mad_stream *stream, struct mad_frame *frame)
+{
+  struct mad_header *header = &frame->header;
+  struct mad_bitptr start;
+  unsigned int index, sblimit, nbal, nch, bound, gr, ch, s, sb;
+  unsigned char const *offsets;
+  unsigned char allocation[2][32], scfsi[2][32], scalefactor[2][32][3];
+  mad_fixed_t samples[3];
+
+  nch = MAD_NCHANNELS(header);
+
+  if (header->flags & MAD_FLAG_LSF_EXT)
+    index = 4;
+  else if (header->flags & MAD_FLAG_FREEFORMAT)
+    goto freeformat;
+  else {
+    unsigned long bitrate_per_channel;
+
+    bitrate_per_channel = header->bitrate;
+    if (nch == 2) {
+      bitrate_per_channel /= 2;
+
+# if defined(OPT_STRICT)
+      /*
+       * ISO/IEC 11172-3 allows only single channel mode for 32, 48, 56, and
+       * 80 kbps bitrates in Layer II, but some encoders ignore this
+       * restriction. We enforce it if OPT_STRICT is defined.
+       */
+      if (bitrate_per_channel <= 28000 || bitrate_per_channel == 40000) {
+	stream->error = MAD_ERROR_BADMODE;
+	return -1;
+      }
+# endif
+    }
+    else {  /* nch == 1 */
+      if (bitrate_per_channel > 192000) {
+	/*
+	 * ISO/IEC 11172-3 does not allow single channel mode for 224, 256,
+	 * 320, or 384 kbps bitrates in Layer II.
+	 */
+	stream->error = MAD_ERROR_BADMODE;
+	return -1;
+      }
+    }
+
+    if (bitrate_per_channel <= 48000)
+      index = (header->samplerate == 32000) ? 3 : 2;
+    else if (bitrate_per_channel <= 80000)
+      index = 0;
+    else {
+    freeformat:
+      index = (header->samplerate == 48000) ? 0 : 1;
+    }
+  }
+
+  sblimit = sbquant_table[index].sblimit;
+  offsets = sbquant_table[index].offsets;
+
+  bound = 32;
+  if (header->mode == MAD_MODE_JOINT_STEREO) {
+    header->flags |= MAD_FLAG_I_STEREO;
+    bound = 4 + header->mode_extension * 4;
+  }
+
+  if (bound > sblimit)
+    bound = sblimit;
+
+  start = stream->ptr;
+
+  /* decode bit allocations */
+
+  for (sb = 0; sb < bound; ++sb) {
+    nbal = bitalloc_table[offsets[sb]].nbal;
+
+    for (ch = 0; ch < nch; ++ch)
+      allocation[ch][sb] = mad_bit_read(&stream->ptr, nbal);
+  }
+
+  for (sb = bound; sb < sblimit; ++sb) {
+    nbal = bitalloc_table[offsets[sb]].nbal;
+
+    allocation[0][sb] =
+    allocation[1][sb] = mad_bit_read(&stream->ptr, nbal);
+  }
+
+  /* decode scalefactor selection info */
+
+  for (sb = 0; sb < sblimit; ++sb) {
+    for (ch = 0; ch < nch; ++ch) {
+      if (allocation[ch][sb])
+	scfsi[ch][sb] = mad_bit_read(&stream->ptr, 2);
+    }
+  }
+
+  /* check CRC word */
+
+  if (header->flags & MAD_FLAG_PROTECTION) {
+    header->crc_check =
+      mad_bit_crc(start, mad_bit_length(&start, &stream->ptr),
+		  header->crc_check);
+
+    if (header->crc_check != header->crc_target &&
+	!(frame->options & MAD_OPTION_IGNORECRC)) {
+      stream->error = MAD_ERROR_BADCRC;
+      return -1;
+    }
+  }
+
+  /* decode scalefactors */
+
+  for (sb = 0; sb < sblimit; ++sb) {
+    for (ch = 0; ch < nch; ++ch) {
+      if (allocation[ch][sb]) {
+	scalefactor[ch][sb][0] = mad_bit_read(&stream->ptr, 6);
+
+	switch (scfsi[ch][sb]) {
+	case 2:
+	  scalefactor[ch][sb][2] =
+	  scalefactor[ch][sb][1] =
+	  scalefactor[ch][sb][0];
+	  break;
+
+	case 0:
+	  scalefactor[ch][sb][1] = mad_bit_read(&stream->ptr, 6);
+	  /* fall through */
+
+	case 1:
+	case 3:
+	  scalefactor[ch][sb][2] = mad_bit_read(&stream->ptr, 6);
+	}
+
+	if (scfsi[ch][sb] & 1)
+	  scalefactor[ch][sb][1] = scalefactor[ch][sb][scfsi[ch][sb] - 1];
+
+# if defined(OPT_STRICT)
+	/*
+	 * Scalefactor index 63 does not appear in Table B.1 of
+	 * ISO/IEC 11172-3. Nonetheless, other implementations accept it,
+	 * so we only reject it if OPT_STRICT is defined.
+	 */
+	if (scalefactor[ch][sb][0] == 63 ||
+	    scalefactor[ch][sb][1] == 63 ||
+	    scalefactor[ch][sb][2] == 63) {
+	  stream->error = MAD_ERROR_BADSCALEFACTOR;
+	  return -1;
+	}
+# endif
+      }
+    }
+  }
+
+  /* decode samples */
+
+  for (gr = 0; gr < 12; ++gr) {
+    for (sb = 0; sb < bound; ++sb) {
+      for (ch = 0; ch < nch; ++ch) {
+	if ((index = allocation[ch][sb])) {
+	  index = offset_table[bitalloc_table[offsets[sb]].offset][index - 1];
+
+	  II_samples(&stream->ptr, &qc_table[index], samples);
+
+	  for (s = 0; s < 3; ++s) {
+	    frame->sbsample[ch][3 * gr + s][sb] =
+	      mad_f_mul(samples[s], sf_table[scalefactor[ch][sb][gr / 4]]);
+	  }
+	}
+	else {
+	  for (s = 0; s < 3; ++s)
+	    frame->sbsample[ch][3 * gr + s][sb] = 0;
+	}
+      }
+    }
+
+    for (sb = bound; sb < sblimit; ++sb) {
+      if ((index = allocation[0][sb])) {
+	index = offset_table[bitalloc_table[offsets[sb]].offset][index - 1];
+
+	II_samples(&stream->ptr, &qc_table[index], samples);
+
+	for (ch = 0; ch < nch; ++ch) {
+	  for (s = 0; s < 3; ++s) {
+	    frame->sbsample[ch][3 * gr + s][sb] =
+	      mad_f_mul(samples[s], sf_table[scalefactor[ch][sb][gr / 4]]);
+	  }
+	}
+      }
+      else {
+	for (ch = 0; ch < nch; ++ch) {
+	  for (s = 0; s < 3; ++s)
+	    frame->sbsample[ch][3 * gr + s][sb] = 0;
+	}
+      }
+    }
+
+    for (ch = 0; ch < nch; ++ch) {
+      for (s = 0; s < 3; ++s) {
+	for (sb = sblimit; sb < 32; ++sb)
+	  frame->sbsample[ch][3 * gr + s][sb] = 0;
+      }
+    }
+  }
+
+  return 0;
+}

lib/libmad/layer12.h

@@ -0,0 +1,31 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: layer12.h,v 1.10 2004/01/23 09:41:32 rob Exp $
+ */
+
+# ifndef LIBMAD_LAYER12_H
+# define LIBMAD_LAYER12_H
+
+# include "stream.h"
+# include "frame.h"
+
+int mad_layer_I(struct mad_stream *, struct mad_frame *);
+int mad_layer_II(struct mad_stream *, struct mad_frame *);
+
+# endif

lib/libmad/layer3.h

@@ -0,0 +1,30 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: layer3.h,v 1.10 2004/01/23 09:41:32 rob Exp $
+ */
+
+# ifndef LIBMAD_LAYER3_H
+# define LIBMAD_LAYER3_H
+
+# include "stream.h"
+# include "frame.h"
+
+int mad_layer_III(struct mad_stream *, struct mad_frame *);
+
+# endif

lib/libmad/libmad.list.in

@@ -0,0 +1,21 @@
+# @configure_input@
+
+# Directories...
+$prefix=@prefix@
+$exec_prefix=@exec_prefix@
+$srcdir=@srcdir@
+
+# Product information
+%product @PACKAGE@
+%copyright GPL
+%vendor Underbit Technologies, Inc. <info@underbit.com>
+%license @srcdir@/COPYING
+%readme @srcdir@/README
+%description libmad is an MPEG audio decoder library.
+%version @VERSION@
+%packager Giuseppe "Cowo" Corbelli <cowo@lugbs.linux.it>
+
+%system all
+f 0755 root root @libdir@/libmad.la .libs/libmad.lai
+f 0644 root root @libdir@/libmad.a .libs/libmad.a
+f 0644 root root @includedir@/mad.h mad.h

lib/libmad/mad.h

@@ -0,0 +1,964 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * If you would like to negotiate alternate licensing terms, you may do
+ * so by contacting: Underbit Technologies, Inc. <info@underbit.com>
+ */
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+# define FPM_INTEL
+
+
+
+# define SIZEOF_INT 4
+# define SIZEOF_LONG 4
+# define SIZEOF_LONG_LONG 8
+
+
+/* Id: version.h,v 1.26 2004/01/23 09:41:33 rob Exp */
+
+# ifndef LIBMAD_VERSION_H
+# define LIBMAD_VERSION_H
+
+# define MAD_VERSION_MAJOR	0
+# define MAD_VERSION_MINOR	15
+# define MAD_VERSION_PATCH	1
+# define MAD_VERSION_EXTRA	" (beta)"
+
+# define MAD_VERSION_STRINGIZE(str)	#str
+# define MAD_VERSION_STRING(num)	MAD_VERSION_STRINGIZE(num)
+
+# define MAD_VERSION		MAD_VERSION_STRING(MAD_VERSION_MAJOR) "."  \
+				MAD_VERSION_STRING(MAD_VERSION_MINOR) "."  \
+				MAD_VERSION_STRING(MAD_VERSION_PATCH)  \
+				MAD_VERSION_EXTRA
+
+# define MAD_PUBLISHYEAR	"2000-2004"
+# define MAD_AUTHOR		"Underbit Technologies, Inc."
+# define MAD_EMAIL		"info@underbit.com"
+
+extern char const mad_version[];
+extern char const mad_copyright[];
+extern char const mad_author[];
+extern char const mad_build[];
+
+# endif
+
+/* Id: fixed.h,v 1.38 2004/02/17 02:02:03 rob Exp */
+
+# ifndef LIBMAD_FIXED_H
+# define LIBMAD_FIXED_H
+
+# if SIZEOF_INT >= 4
+typedef   signed int mad_fixed_t;
+
+typedef   signed int mad_fixed64hi_t;
+typedef unsigned int mad_fixed64lo_t;
+# else
+typedef   signed long mad_fixed_t;
+
+typedef   signed long mad_fixed64hi_t;
+typedef unsigned long mad_fixed64lo_t;
+# endif
+
+# if defined(_MSC_VER)
+#  define mad_fixed64_t  signed __int64
+# elif 1 || defined(__GNUC__)
+#  define mad_fixed64_t  signed long long
+# endif
+
+# if defined(FPM_FLOAT)
+typedef double mad_sample_t;
+# else
+typedef mad_fixed_t mad_sample_t;
+# endif
+
+/*
+ * Fixed-point format: 0xABBBBBBB
+ * A == whole part      (sign + 3 bits)
+ * B == fractional part (28 bits)
+ *
+ * Values are signed two's complement, so the effective range is:
+ * 0x80000000 to 0x7fffffff
+ *       -8.0 to +7.9999999962747097015380859375
+ *
+ * The smallest representable value is:
+ * 0x00000001 == 0.0000000037252902984619140625 (i.e. about 3.725e-9)
+ *
+ * 28 bits of fractional accuracy represent about
+ * 8.6 digits of decimal accuracy.
+ *
+ * Fixed-point numbers can be added or subtracted as normal
+ * integers, but multiplication requires shifting the 64-bit result
+ * from 56 fractional bits back to 28 (and rounding.)
+ *
+ * Changing the definition of MAD_F_FRACBITS is only partially
+ * supported, and must be done with care.
+ */
+
+# define MAD_F_FRACBITS		28
+
+# if MAD_F_FRACBITS == 28
+#  define MAD_F(x)		((mad_fixed_t) (x##L))
+# else
+#  if MAD_F_FRACBITS < 28
+#   warning "MAD_F_FRACBITS < 28"
+#   define MAD_F(x)		((mad_fixed_t)  \
+				 (((x##L) +  \
+				   (1L << (28 - MAD_F_FRACBITS - 1))) >>  \
+				  (28 - MAD_F_FRACBITS)))
+#  elif MAD_F_FRACBITS > 28
+#   error "MAD_F_FRACBITS > 28 not currently supported"
+#   define MAD_F(x)		((mad_fixed_t)  \
+				 ((x##L) << (MAD_F_FRACBITS - 28)))
+#  endif
+# endif
+
+# define MAD_F_MIN		((mad_fixed_t) -0x80000000L)
+# define MAD_F_MAX		((mad_fixed_t) +0x7fffffffL)
+
+# define MAD_F_ONE		MAD_F(0x10000000)
+
+# define mad_f_tofixed(x)	((mad_fixed_t)  \
+				 ((x) * (double) (1L << MAD_F_FRACBITS) + 0.5))
+# define mad_f_todouble(x)	((double)  \
+				 ((x) / (double) (1L << MAD_F_FRACBITS)))
+
+# define mad_f_intpart(x)	((x) >> MAD_F_FRACBITS)
+# define mad_f_fracpart(x)	((x) & ((1L << MAD_F_FRACBITS) - 1))
+				/* (x should be positive) */
+
+# define mad_f_fromint(x)	((x) << MAD_F_FRACBITS)
+
+# define mad_f_add(x, y)	((x) + (y))
+# define mad_f_sub(x, y)	((x) - (y))
+
+# if defined(FPM_FLOAT)
+#  error "FPM_FLOAT not yet supported"
+
+#  undef MAD_F
+#  define MAD_F(x)		mad_f_todouble(x)
+
+#  define mad_f_mul(x, y)	((x) * (y))
+#  define mad_f_scale64
+
+#  undef ASO_ZEROCHECK
+
+# elif defined(FPM_64BIT)
+
+/*
+ * This version should be the most accurate if 64-bit types are supported by
+ * the compiler, although it may not be the most efficient.
+ */
+#  if defined(OPT_ACCURACY)
+#   define mad_f_mul(x, y)  \
+    ((mad_fixed_t)  \
+     ((((mad_fixed64_t) (x) * (y)) +  \
+       (1L << (MAD_F_SCALEBITS - 1))) >> MAD_F_SCALEBITS))
+#  else
+#   define mad_f_mul(x, y)  \
+    ((mad_fixed_t) (((mad_fixed64_t) (x) * (y)) >> MAD_F_SCALEBITS))
+#  endif
+
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+
+/* --- Intel --------------------------------------------------------------- */
+
+# elif defined(FPM_INTEL)
+
+#  if defined(_MSC_VER)
+#   pragma warning(push)
+#   pragma warning(disable: 4035)  /* no return value */
+static __forceinline
+mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y)
+{
+  enum {
+    fracbits = MAD_F_FRACBITS
+  };
+
+  __asm {
+    mov eax, x
+    imul y
+    shrd eax, edx, fracbits
+  }
+
+  /* implicit return of eax */
+}
+#   pragma warning(pop)
+
+#   define mad_f_mul		mad_f_mul_inline
+#   define mad_f_scale64
+#  else
+/*
+ * This Intel version is fast and accurate; the disposition of the least
+ * significant bit depends on OPT_ACCURACY via mad_f_scale64().
+ */
+#   define MAD_F_MLX(hi, lo, x, y)  \
+    asm ("imull %3"  \
+	 : "=a" (lo), "=d" (hi)  \
+	 : "%a" (x), "rm" (y)  \
+	 : "cc")
+
+#   if defined(OPT_ACCURACY)
+/*
+ * This gives best accuracy but is not very fast.
+ */
+#    define MAD_F_MLA(hi, lo, x, y)  \
+    ({ mad_fixed64hi_t __hi;  \
+       mad_fixed64lo_t __lo;  \
+       MAD_F_MLX(__hi, __lo, (x), (y));  \
+       asm ("addl %2,%0\n\t"  \
+	    "adcl %3,%1"  \
+	    : "=rm" (lo), "=rm" (hi)  \
+	    : "r" (__lo), "r" (__hi), "0" (lo), "1" (hi)  \
+	    : "cc");  \
+    })
+#   endif  /* OPT_ACCURACY */
+
+#   if defined(OPT_ACCURACY)
+/*
+ * Surprisingly, this is faster than SHRD followed by ADC.
+ */
+#    define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed64hi_t __hi_;  \
+       mad_fixed64lo_t __lo_;  \
+       mad_fixed_t __result;  \
+       asm ("addl %4,%2\n\t"  \
+	    "adcl %5,%3"  \
+	    : "=rm" (__lo_), "=rm" (__hi_)  \
+	    : "0" (lo), "1" (hi),  \
+	      "ir" (1L << (MAD_F_SCALEBITS - 1)), "ir" (0)  \
+	    : "cc");  \
+       asm ("shrdl %3,%2,%1"  \
+	    : "=rm" (__result)  \
+	    : "0" (__lo_), "r" (__hi_), "I" (MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+#   elif defined(OPT_INTEL)
+/*
+ * Alternate Intel scaling that may or may not perform better.
+ */
+#    define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result;  \
+       asm ("shrl %3,%1\n\t"  \
+	    "shll %4,%2\n\t"  \
+	    "orl %2,%1"  \
+	    : "=rm" (__result)  \
+	    : "0" (lo), "r" (hi),  \
+	      "I" (MAD_F_SCALEBITS), "I" (32 - MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+#   else
+#    define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result;  \
+       asm ("shrdl %3,%2,%1"  \
+	    : "=rm" (__result)  \
+	    : "0" (lo), "r" (hi), "I" (MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+#   endif  /* OPT_ACCURACY */
+
+#   define MAD_F_SCALEBITS  MAD_F_FRACBITS
+#  endif
+
+/* --- ARM ----------------------------------------------------------------- */
+
+# elif defined(FPM_ARM)
+
+/* 
+ * This ARM V4 version is as accurate as FPM_64BIT but much faster. The
+ * least significant bit is properly rounded at no CPU cycle cost!
+ */
+# if 1
+/*
+ * This is faster than the default implementation via MAD_F_MLX() and
+ * mad_f_scale64().
+ */
+#  define mad_f_mul(x, y)  \
+    ({ mad_fixed64hi_t __hi;  \
+       mad_fixed64lo_t __lo;  \
+       mad_fixed_t __result;  \
+       asm ("smull	%0, %1, %3, %4\n\t"  \
+	    "movs	%0, %0, lsr %5\n\t"  \
+	    "adc	%2, %0, %1, lsl %6"  \
+	    : "=&r" (__lo), "=&r" (__hi), "=r" (__result)  \
+	    : "%r" (x), "r" (y),  \
+	      "M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+# endif
+
+#  define MAD_F_MLX(hi, lo, x, y)  \
+    asm ("smull	%0, %1, %2, %3"  \
+	 : "=&r" (lo), "=&r" (hi)  \
+	 : "%r" (x), "r" (y))
+
+#  define MAD_F_MLA(hi, lo, x, y)  \
+    asm ("smlal	%0, %1, %2, %3"  \
+	 : "+r" (lo), "+r" (hi)  \
+	 : "%r" (x), "r" (y))
+
+#  define MAD_F_MLN(hi, lo)  \
+    asm ("rsbs	%0, %2, #0\n\t"  \
+	 "rsc	%1, %3, #0"  \
+	 : "=r" (lo), "=r" (hi)  \
+	 : "0" (lo), "1" (hi)  \
+	 : "cc")
+
+#  define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result;  \
+       asm ("movs	%0, %1, lsr %3\n\t"  \
+	    "adc	%0, %0, %2, lsl %4"  \
+	    : "=&r" (__result)  \
+	    : "r" (lo), "r" (hi),  \
+	      "M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+
+/* --- MIPS ---------------------------------------------------------------- */
+
+# elif defined(FPM_MIPS)
+
+/*
+ * This MIPS version is fast and accurate; the disposition of the least
+ * significant bit depends on OPT_ACCURACY via mad_f_scale64().
+ */
+#  define MAD_F_MLX(hi, lo, x, y)  \
+    asm ("mult	%2,%3"  \
+	 : "=l" (lo), "=h" (hi)  \
+	 : "%r" (x), "r" (y))
+
+# if defined(HAVE_MADD_ASM)
+#  define MAD_F_MLA(hi, lo, x, y)  \
+    asm ("madd	%2,%3"  \
+	 : "+l" (lo), "+h" (hi)  \
+	 : "%r" (x), "r" (y))
+# elif defined(HAVE_MADD16_ASM)
+/*
+ * This loses significant accuracy due to the 16-bit integer limit in the
+ * multiply/accumulate instruction.
+ */
+#  define MAD_F_ML0(hi, lo, x, y)  \
+    asm ("mult	%2,%3"  \
+	 : "=l" (lo), "=h" (hi)  \
+	 : "%r" ((x) >> 12), "r" ((y) >> 16))
+#  define MAD_F_MLA(hi, lo, x, y)  \
+    asm ("madd16	%2,%3"  \
+	 : "+l" (lo), "+h" (hi)  \
+	 : "%r" ((x) >> 12), "r" ((y) >> 16))
+#  define MAD_F_MLZ(hi, lo)  ((mad_fixed_t) (lo))
+# endif
+
+# if defined(OPT_SPEED)
+#  define mad_f_scale64(hi, lo)  \
+    ((mad_fixed_t) ((hi) << (32 - MAD_F_SCALEBITS)))
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+# endif
+
+/* --- SPARC --------------------------------------------------------------- */
+
+# elif defined(FPM_SPARC)
+
+/*
+ * This SPARC V8 version is fast and accurate; the disposition of the least
+ * significant bit depends on OPT_ACCURACY via mad_f_scale64().
+ */
+#  define MAD_F_MLX(hi, lo, x, y)  \
+    asm ("smul %2, %3, %0\n\t"  \
+	 "rd %%y, %1"  \
+	 : "=r" (lo), "=r" (hi)  \
+	 : "%r" (x), "rI" (y))
+
+/* --- PowerPC ------------------------------------------------------------- */
+
+# elif defined(FPM_PPC)
+
+/*
+ * This PowerPC version is fast and accurate; the disposition of the least
+ * significant bit depends on OPT_ACCURACY via mad_f_scale64().
+ */
+#  define MAD_F_MLX(hi, lo, x, y)  \
+    do {  \
+      asm ("mullw %0,%1,%2"  \
+	   : "=r" (lo)  \
+	   : "%r" (x), "r" (y));  \
+      asm ("mulhw %0,%1,%2"  \
+	   : "=r" (hi)  \
+	   : "%r" (x), "r" (y));  \
+    }  \
+    while (0)
+
+#  if defined(OPT_ACCURACY)
+/*
+ * This gives best accuracy but is not very fast.
+ */
+#   define MAD_F_MLA(hi, lo, x, y)  \
+    ({ mad_fixed64hi_t __hi;  \
+       mad_fixed64lo_t __lo;  \
+       MAD_F_MLX(__hi, __lo, (x), (y));  \
+       asm ("addc %0,%2,%3\n\t"  \
+	    "adde %1,%4,%5"  \
+	    : "=r" (lo), "=r" (hi)  \
+	    : "%r" (lo), "r" (__lo),  \
+	      "%r" (hi), "r" (__hi)  \
+	    : "xer");  \
+    })
+#  endif
+
+#  if defined(OPT_ACCURACY)
+/*
+ * This is slower than the truncating version below it.
+ */
+#   define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result, __round;  \
+       asm ("rotrwi %0,%1,%2"  \
+	    : "=r" (__result)  \
+	    : "r" (lo), "i" (MAD_F_SCALEBITS));  \
+       asm ("extrwi %0,%1,1,0"  \
+	    : "=r" (__round)  \
+	    : "r" (__result));  \
+       asm ("insrwi %0,%1,%2,0"  \
+	    : "+r" (__result)  \
+	    : "r" (hi), "i" (MAD_F_SCALEBITS));  \
+       asm ("add %0,%1,%2"  \
+	    : "=r" (__result)  \
+	    : "%r" (__result), "r" (__round));  \
+       __result;  \
+    })
+#  else
+#   define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result;  \
+       asm ("rotrwi %0,%1,%2"  \
+	    : "=r" (__result)  \
+	    : "r" (lo), "i" (MAD_F_SCALEBITS));  \
+       asm ("insrwi %0,%1,%2,0"  \
+	    : "+r" (__result)  \
+	    : "r" (hi), "i" (MAD_F_SCALEBITS));  \
+       __result;  \
+    })
+#  endif
+
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+
+/* --- Default ------------------------------------------------------------- */
+
+# elif defined(FPM_DEFAULT)
+
+/*
+ * This version is the most portable but it loses significant accuracy.
+ * Furthermore, accuracy is biased against the second argument, so care
+ * should be taken when ordering operands.
+ *
+ * The scale factors are constant as this is not used with SSO.
+ *
+ * Pre-rounding is required to stay within the limits of compliance.
+ */
+#  if defined(OPT_SPEED)
+#   define mad_f_mul(x, y)	(((x) >> 12) * ((y) >> 16))
+#  else
+#   define mad_f_mul(x, y)	((((x) + (1L << 11)) >> 12) *  \
+				 (((y) + (1L << 15)) >> 16))
+#  endif
+
+/* ------------------------------------------------------------------------- */
+
+# else
+#  error "no FPM selected"
+# endif
+
+/* default implementations */
+
+# if !defined(mad_f_mul)
+#  define mad_f_mul(x, y)  \
+    ({ register mad_fixed64hi_t __hi;  \
+       register mad_fixed64lo_t __lo;  \
+       MAD_F_MLX(__hi, __lo, (x), (y));  \
+       mad_f_scale64(__hi, __lo);  \
+    })
+# endif
+
+# if !defined(MAD_F_MLA)
+#  define MAD_F_ML0(hi, lo, x, y)	((lo)  = mad_f_mul((x), (y)))
+#  define MAD_F_MLA(hi, lo, x, y)	((lo) += mad_f_mul((x), (y)))
+#  define MAD_F_MLN(hi, lo)		((lo)  = -(lo))
+#  define MAD_F_MLZ(hi, lo)		((void) (hi), (mad_fixed_t) (lo))
+# endif
+
+# if !defined(MAD_F_ML0)
+#  define MAD_F_ML0(hi, lo, x, y)	MAD_F_MLX((hi), (lo), (x), (y))
+# endif
+
+# if !defined(MAD_F_MLN)
+#  define MAD_F_MLN(hi, lo)		((hi) = ((lo) = -(lo)) ? ~(hi) : -(hi))
+# endif
+
+# if !defined(MAD_F_MLZ)
+#  define MAD_F_MLZ(hi, lo)		mad_f_scale64((hi), (lo))
+# endif
+
+# if !defined(mad_f_scale64)
+#  if defined(OPT_ACCURACY)
+#   define mad_f_scale64(hi, lo)  \
+    ((((mad_fixed_t)  \
+       (((hi) << (32 - (MAD_F_SCALEBITS - 1))) |  \
+	((lo) >> (MAD_F_SCALEBITS - 1)))) + 1) >> 1)
+#  else
+#   define mad_f_scale64(hi, lo)  \
+    ((mad_fixed_t)  \
+     (((hi) << (32 - MAD_F_SCALEBITS)) |  \
+      ((lo) >> MAD_F_SCALEBITS)))
+#  endif
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+# endif
+
+/* C routines */
+
+mad_fixed_t mad_f_abs(mad_fixed_t);
+mad_fixed_t mad_f_div(mad_fixed_t, mad_fixed_t);
+
+# endif
+
+/* Id: bit.h,v 1.12 2004/01/23 09:41:32 rob Exp */
+
+# ifndef LIBMAD_BIT_H
+# define LIBMAD_BIT_H
+
+struct mad_bitptr {
+  unsigned char const *byte;
+  unsigned short cache;
+  unsigned short left;
+};
+
+void mad_bit_init(struct mad_bitptr *, unsigned char const *);
+
+# define mad_bit_finish(bitptr)		/* nothing */
+
+unsigned int mad_bit_length(struct mad_bitptr const *,
+			    struct mad_bitptr const *);
+
+# define mad_bit_bitsleft(bitptr)  ((bitptr)->left)
+unsigned char const *mad_bit_nextbyte(struct mad_bitptr const *);
+
+void mad_bit_skip(struct mad_bitptr *, unsigned int);
+unsigned long mad_bit_read(struct mad_bitptr *, unsigned int);
+void mad_bit_write(struct mad_bitptr *, unsigned int, unsigned long);
+
+unsigned short mad_bit_crc(struct mad_bitptr, unsigned int, unsigned short);
+
+# endif
+
+/* Id: timer.h,v 1.16 2004/01/23 09:41:33 rob Exp */
+
+# ifndef LIBMAD_TIMER_H
+# define LIBMAD_TIMER_H
+
+typedef struct {
+  signed long seconds;		/* whole seconds */
+  unsigned long fraction;	/* 1/MAD_TIMER_RESOLUTION seconds */
+} mad_timer_t;
+
+extern mad_timer_t const mad_timer_zero;
+
+# define MAD_TIMER_RESOLUTION	352800000UL
+
+enum mad_units {
+  MAD_UNITS_HOURS	 =    -2,
+  MAD_UNITS_MINUTES	 =    -1,
+  MAD_UNITS_SECONDS	 =     0,
+
+  /* metric units */
+
+  MAD_UNITS_DECISECONDS	 =    10,
+  MAD_UNITS_CENTISECONDS =   100,
+  MAD_UNITS_MILLISECONDS =  1000,
+
+  /* audio sample units */
+
+  MAD_UNITS_8000_HZ	 =  8000,
+  MAD_UNITS_11025_HZ	 = 11025,
+  MAD_UNITS_12000_HZ	 = 12000,
+
+  MAD_UNITS_16000_HZ	 = 16000,
+  MAD_UNITS_22050_HZ	 = 22050,
+  MAD_UNITS_24000_HZ	 = 24000,
+
+  MAD_UNITS_32000_HZ	 = 32000,
+  MAD_UNITS_44100_HZ	 = 44100,
+  MAD_UNITS_48000_HZ	 = 48000,
+
+  /* video frame/field units */
+
+  MAD_UNITS_24_FPS	 =    24,
+  MAD_UNITS_25_FPS	 =    25,
+  MAD_UNITS_30_FPS	 =    30,
+  MAD_UNITS_48_FPS	 =    48,
+  MAD_UNITS_50_FPS	 =    50,
+  MAD_UNITS_60_FPS	 =    60,
+
+  /* CD audio frames */
+
+  MAD_UNITS_75_FPS	 =    75,
+
+  /* video drop-frame units */
+
+  MAD_UNITS_23_976_FPS	 =   -24,
+  MAD_UNITS_24_975_FPS	 =   -25,
+  MAD_UNITS_29_97_FPS	 =   -30,
+  MAD_UNITS_47_952_FPS	 =   -48,
+  MAD_UNITS_49_95_FPS	 =   -50,
+  MAD_UNITS_59_94_FPS	 =   -60
+};
+
+# define mad_timer_reset(timer)	((void) (*(timer) = mad_timer_zero))
+
+int mad_timer_compare(mad_timer_t, mad_timer_t);
+
+# define mad_timer_sign(timer)	mad_timer_compare((timer), mad_timer_zero)
+
+void mad_timer_negate(mad_timer_t *);
+mad_timer_t mad_timer_abs(mad_timer_t);
+
+void mad_timer_set(mad_timer_t *, unsigned long, unsigned long, unsigned long);
+void mad_timer_add(mad_timer_t *, mad_timer_t);
+void mad_timer_multiply(mad_timer_t *, signed long);
+
+signed long mad_timer_count(mad_timer_t, enum mad_units);
+unsigned long mad_timer_fraction(mad_timer_t, unsigned long);
+void mad_timer_string(mad_timer_t, char *, char const *,
+		      enum mad_units, enum mad_units, unsigned long);
+
+# endif
+
+/* Id: stream.h,v 1.20 2004/02/05 09:02:39 rob Exp */
+
+# ifndef LIBMAD_STREAM_H
+# define LIBMAD_STREAM_H
+
+
+# define MAD_BUFFER_GUARD	8
+# define MAD_BUFFER_MDLEN	(511 + 2048 + MAD_BUFFER_GUARD)
+
+enum mad_error {
+  MAD_ERROR_NONE	   = 0x0000,	/* no error */
+
+  MAD_ERROR_BUFLEN	   = 0x0001,	/* input buffer too small (or EOF) */
+  MAD_ERROR_BUFPTR	   = 0x0002,	/* invalid (null) buffer pointer */
+
+  MAD_ERROR_NOMEM	   = 0x0031,	/* not enough memory */
+
+  MAD_ERROR_LOSTSYNC	   = 0x0101,	/* lost synchronization */
+  MAD_ERROR_BADLAYER	   = 0x0102,	/* reserved header layer value */
+  MAD_ERROR_BADBITRATE	   = 0x0103,	/* forbidden bitrate value */
+  MAD_ERROR_BADSAMPLERATE  = 0x0104,	/* reserved sample frequency value */
+  MAD_ERROR_BADEMPHASIS	   = 0x0105,	/* reserved emphasis value */
+
+  MAD_ERROR_BADCRC	   = 0x0201,	/* CRC check failed */
+  MAD_ERROR_BADBITALLOC	   = 0x0211,	/* forbidden bit allocation value */
+  MAD_ERROR_BADSCALEFACTOR = 0x0221,	/* bad scalefactor index */
+  MAD_ERROR_BADMODE        = 0x0222,	/* bad bitrate/mode combination */
+  MAD_ERROR_BADFRAMELEN	   = 0x0231,	/* bad frame length */
+  MAD_ERROR_BADBIGVALUES   = 0x0232,	/* bad big_values count */
+  MAD_ERROR_BADBLOCKTYPE   = 0x0233,	/* reserved block_type */
+  MAD_ERROR_BADSCFSI	   = 0x0234,	/* bad scalefactor selection info */
+  MAD_ERROR_BADDATAPTR	   = 0x0235,	/* bad main_data_begin pointer */
+  MAD_ERROR_BADPART3LEN	   = 0x0236,	/* bad audio data length */
+  MAD_ERROR_BADHUFFTABLE   = 0x0237,	/* bad Huffman table select */
+  MAD_ERROR_BADHUFFDATA	   = 0x0238,	/* Huffman data overrun */
+  MAD_ERROR_BADSTEREO	   = 0x0239	/* incompatible block_type for JS */
+};
+
+# define MAD_RECOVERABLE(error)	((error) & 0xff00)
+
+struct mad_stream {
+  unsigned char const *buffer;		/* input bitstream buffer */
+  unsigned char const *bufend;		/* end of buffer */
+  unsigned long skiplen;		/* bytes to skip before next frame */
+
+  int sync;				/* stream sync found */
+  unsigned long freerate;		/* free bitrate (fixed) */
+
+  unsigned char const *this_frame;	/* start of current frame */
+  unsigned char const *next_frame;	/* start of next frame */
+  struct mad_bitptr ptr;		/* current processing bit pointer */
+
+  struct mad_bitptr anc_ptr;		/* ancillary bits pointer */
+  unsigned int anc_bitlen;		/* number of ancillary bits */
+
+  unsigned char (*main_data)[MAD_BUFFER_MDLEN];
+					/* Layer III main_data() */
+  unsigned int md_len;			/* bytes in main_data */
+
+  int options;				/* decoding options (see below) */
+  enum mad_error error;			/* error code (see above) */
+};
+
+enum {
+  MAD_OPTION_IGNORECRC      = 0x0001,	/* ignore CRC errors */
+  MAD_OPTION_HALFSAMPLERATE = 0x0002	/* generate PCM at 1/2 sample rate */
+# if 0  /* not yet implemented */
+  MAD_OPTION_LEFTCHANNEL    = 0x0010,	/* decode left channel only */
+  MAD_OPTION_RIGHTCHANNEL   = 0x0020,	/* decode right channel only */
+  MAD_OPTION_SINGLECHANNEL  = 0x0030	/* combine channels */
+# endif
+};
+
+void mad_stream_init(struct mad_stream *);
+void mad_stream_finish(struct mad_stream *);
+
+# define mad_stream_options(stream, opts)  \
+    ((void) ((stream)->options = (opts)))
+
+void mad_stream_buffer(struct mad_stream *,
+		       unsigned char const *, unsigned long);
+void mad_stream_skip(struct mad_stream *, unsigned long);
+
+int mad_stream_sync(struct mad_stream *);
+
+char const *mad_stream_errorstr(struct mad_stream const *);
+
+# endif
+
+/* Id: frame.h,v 1.20 2004/01/23 09:41:32 rob Exp */
+
+# ifndef LIBMAD_FRAME_H
+# define LIBMAD_FRAME_H
+
+
+enum mad_layer {
+  MAD_LAYER_I   = 1,			/* Layer I */
+  MAD_LAYER_II  = 2,			/* Layer II */
+  MAD_LAYER_III = 3			/* Layer III */
+};
+
+enum mad_mode {
+  MAD_MODE_SINGLE_CHANNEL = 0,		/* single channel */
+  MAD_MODE_DUAL_CHANNEL	  = 1,		/* dual channel */
+  MAD_MODE_JOINT_STEREO	  = 2,		/* joint (MS/intensity) stereo */
+  MAD_MODE_STEREO	  = 3		/* normal LR stereo */
+};
+
+enum mad_emphasis {
+  MAD_EMPHASIS_NONE	  = 0,		/* no emphasis */
+  MAD_EMPHASIS_50_15_US	  = 1,		/* 50/15 microseconds emphasis */
+  MAD_EMPHASIS_CCITT_J_17 = 3,		/* CCITT J.17 emphasis */
+  MAD_EMPHASIS_RESERVED   = 2		/* unknown emphasis */
+};
+
+struct mad_header {
+  enum mad_layer layer;			/* audio layer (1, 2, or 3) */
+  enum mad_mode mode;			/* channel mode (see above) */
+  int mode_extension;			/* additional mode info */
+  enum mad_emphasis emphasis;		/* de-emphasis to use (see above) */
+
+  unsigned long bitrate;		/* stream bitrate (bps) */
+  unsigned int samplerate;		/* sampling frequency (Hz) */
+
+  unsigned short crc_check;		/* frame CRC accumulator */
+  unsigned short crc_target;		/* final target CRC checksum */
+
+  int flags;				/* flags (see below) */
+  int private_bits;			/* private bits (see below) */
+
+  mad_timer_t duration;			/* audio playing time of frame */
+};
+
+struct mad_frame {
+  struct mad_header header;		/* MPEG audio header */
+
+  int options;				/* decoding options (from stream) */
+
+  mad_fixed_t sbsample[2][36][32];	/* synthesis subband filter samples */
+  mad_fixed_t (*overlap)[2][32][18];	/* Layer III block overlap data */
+};
+
+# define MAD_NCHANNELS(header)		((header)->mode ? 2 : 1)
+# define MAD_NSBSAMPLES(header)  \
+  ((header)->layer == MAD_LAYER_I ? 12 :  \
+   (((header)->layer == MAD_LAYER_III &&  \
+     ((header)->flags & MAD_FLAG_LSF_EXT)) ? 18 : 36))
+
+enum {
+  MAD_FLAG_NPRIVATE_III	= 0x0007,	/* number of Layer III private bits */
+  MAD_FLAG_INCOMPLETE	= 0x0008,	/* header but not data is decoded */
+
+  MAD_FLAG_PROTECTION	= 0x0010,	/* frame has CRC protection */
+  MAD_FLAG_COPYRIGHT	= 0x0020,	/* frame is copyright */
+  MAD_FLAG_ORIGINAL	= 0x0040,	/* frame is original (else copy) */
+  MAD_FLAG_PADDING	= 0x0080,	/* frame has additional slot */
+
+  MAD_FLAG_I_STEREO	= 0x0100,	/* uses intensity joint stereo */
+  MAD_FLAG_MS_STEREO	= 0x0200,	/* uses middle/side joint stereo */
+  MAD_FLAG_FREEFORMAT	= 0x0400,	/* uses free format bitrate */
+
+  MAD_FLAG_LSF_EXT	= 0x1000,	/* lower sampling freq. extension */
+  MAD_FLAG_MC_EXT	= 0x2000,	/* multichannel audio extension */
+  MAD_FLAG_MPEG_2_5_EXT	= 0x4000	/* MPEG 2.5 (unofficial) extension */
+};
+
+enum {
+  MAD_PRIVATE_HEADER	= 0x0100,	/* header private bit */
+  MAD_PRIVATE_III	= 0x001f	/* Layer III private bits (up to 5) */
+};
+
+void mad_header_init(struct mad_header *);
+
+# define mad_header_finish(header)  /* nothing */
+
+int mad_header_decode(struct mad_header *, struct mad_stream *);
+
+void mad_frame_init(struct mad_frame *);
+void mad_frame_finish(struct mad_frame *);
+
+int mad_frame_decode(struct mad_frame *, struct mad_stream *);
+
+void mad_frame_mute(struct mad_frame *);
+
+# endif
+
+/* Id: synth.h,v 1.15 2004/01/23 09:41:33 rob Exp */
+
+# ifndef LIBMAD_SYNTH_H
+# define LIBMAD_SYNTH_H
+
+
+struct mad_pcm {
+  unsigned int samplerate;		/* sampling frequency (Hz) */
+  unsigned short channels;		/* number of channels */
+  unsigned short length;		/* number of samples per channel */
+  mad_fixed_t samples[2][1152];		/* PCM output samples [ch][sample] */
+};
+
+struct mad_synth {
+  mad_fixed_t filter[2][2][2][16][8];	/* polyphase filterbank outputs */
+  					/* [ch][eo][peo][s][v] */
+
+  unsigned int phase;			/* current processing phase */
+
+  struct mad_pcm pcm;			/* PCM output */
+};
+
+/* single channel PCM selector */
+enum {
+  MAD_PCM_CHANNEL_SINGLE = 0
+};
+
+/* dual channel PCM selector */
+enum {
+  MAD_PCM_CHANNEL_DUAL_1 = 0,
+  MAD_PCM_CHANNEL_DUAL_2 = 1
+};
+
+/* stereo PCM selector */
+enum {
+  MAD_PCM_CHANNEL_STEREO_LEFT  = 0,
+  MAD_PCM_CHANNEL_STEREO_RIGHT = 1
+};
+
+void mad_synth_init(struct mad_synth *);
+
+# define mad_synth_finish(synth)  /* nothing */
+
+void mad_synth_mute(struct mad_synth *);
+
+void mad_synth_frame(struct mad_synth *, struct mad_frame const *);
+
+# endif
+
+/* Id: decoder.h,v 1.17 2004/01/23 09:41:32 rob Exp */
+
+# ifndef LIBMAD_DECODER_H
+# define LIBMAD_DECODER_H
+
+
+enum mad_decoder_mode {
+  MAD_DECODER_MODE_SYNC  = 0,
+  MAD_DECODER_MODE_ASYNC
+};
+
+enum mad_flow {
+  MAD_FLOW_CONTINUE = 0x0000,	/* continue normally */
+  MAD_FLOW_STOP     = 0x0010,	/* stop decoding normally */
+  MAD_FLOW_BREAK    = 0x0011,	/* stop decoding and signal an error */
+  MAD_FLOW_IGNORE   = 0x0020	/* ignore the current frame */
+};
+
+struct mad_decoder {
+  enum mad_decoder_mode mode;
+
+  int options;
+
+  struct {
+    long pid;
+    int in;
+    int out;
+  } async;
+
+  struct {
+    struct mad_stream stream;
+    struct mad_frame frame;
+    struct mad_synth synth;
+  } *sync;
+
+  void *cb_data;
+
+  enum mad_flow (*input_func)(void *, struct mad_stream *);
+  enum mad_flow (*header_func)(void *, struct mad_header const *);
+  enum mad_flow (*filter_func)(void *,
+			       struct mad_stream const *, struct mad_frame *);
+  enum mad_flow (*output_func)(void *,
+			       struct mad_header const *, struct mad_pcm *);
+  enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);
+  enum mad_flow (*message_func)(void *, void *, unsigned int *);
+};
+
+void mad_decoder_init(struct mad_decoder *, void *,
+		      enum mad_flow (*)(void *, struct mad_stream *),
+		      enum mad_flow (*)(void *, struct mad_header const *),
+		      enum mad_flow (*)(void *,
+					struct mad_stream const *,
+					struct mad_frame *),
+		      enum mad_flow (*)(void *,
+					struct mad_header const *,
+					struct mad_pcm *),
+		      enum mad_flow (*)(void *,
+					struct mad_stream *,
+					struct mad_frame *),
+		      enum mad_flow (*)(void *, void *, unsigned int *));
+int mad_decoder_finish(struct mad_decoder *);
+
+# define mad_decoder_options(decoder, opts)  \
+    ((void) ((decoder)->options = (opts)))
+
+int mad_decoder_run(struct mad_decoder *, enum mad_decoder_mode);
+int mad_decoder_message(struct mad_decoder *, void *, unsigned int *);
+
+# endif
+
+# ifdef __cplusplus
+}
+# endif

lib/libmad/mad.h.sed

@@ -0,0 +1,36 @@
+#
+# libmad - MPEG audio decoder library
+# Copyright (C) 2000-2004 Underbit Technologies, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# $Id: mad.h.sed,v 1.9 2004/01/23 09:41:32 rob Exp $
+#
+
+/^\/\*$/{
+N
+s/ \* libmad - /&/
+t copy
+b next
+: copy
+g
+n
+s|^ \* \$\(Id: .*\) \$$|/* \1 */|p
+/^ \*\/$/d
+b copy
+}
+/^# *include "/d
+: next
+p

lib/libmad/minimad.c

@@ -0,0 +1,222 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: minimad.c,v 1.4 2004/01/23 09:41:32 rob Exp $
+ */
+
+# include <stdio.h>
+# include <unistd.h>
+# include <sys/stat.h>
+# include <sys/mman.h>
+
+# include "mad.h"
+
+/*
+ * This is perhaps the simplest example use of the MAD high-level API.
+ * Standard input is mapped into memory via mmap(), then the high-level API
+ * is invoked with three callbacks: input, output, and error. The output
+ * callback converts MAD's high-resolution PCM samples to 16 bits, then
+ * writes them to standard output in little-endian, stereo-interleaved
+ * format.
+ */
+
+static int decode(unsigned char const *, unsigned long);
+
+int main(int argc, char *argv[])
+{
+  struct stat stat;
+  void *fdm;
+
+  if (argc != 1)
+    return 1;
+
+  if (fstat(STDIN_FILENO, &stat) == -1 ||
+      stat.st_size == 0)
+    return 2;
+
+  fdm = mmap(0, stat.st_size, PROT_READ, MAP_SHARED, STDIN_FILENO, 0);
+  if (fdm == MAP_FAILED)
+    return 3;
+
+  decode(fdm, stat.st_size);
+
+  if (munmap(fdm, stat.st_size) == -1)
+    return 4;
+
+  return 0;
+}
+
+/*
+ * This is a private message structure. A generic pointer to this structure
+ * is passed to each of the callback functions. Put here any data you need
+ * to access from within the callbacks.
+ */
+
+struct buffer {
+  unsigned char const *start;
+  unsigned long length;
+};
+
+/*
+ * This is the input callback. The purpose of this callback is to (re)fill
+ * the stream buffer which is to be decoded. In this example, an entire file
+ * has been mapped into memory, so we just call mad_stream_buffer() with the
+ * address and length of the mapping. When this callback is called a second
+ * time, we are finished decoding.
+ */
+
+static
+enum mad_flow input(void *data,
+		    struct mad_stream *stream)
+{
+  struct buffer *buffer = data;
+
+  if (!buffer->length)
+    return MAD_FLOW_STOP;
+
+  mad_stream_buffer(stream, buffer->start, buffer->length);
+
+  buffer->length = 0;
+
+  return MAD_FLOW_CONTINUE;
+}
+
+/*
+ * The following utility routine performs simple rounding, clipping, and
+ * scaling of MAD's high-resolution samples down to 16 bits. It does not
+ * perform any dithering or noise shaping, which would be recommended to
+ * obtain any exceptional audio quality. It is therefore not recommended to
+ * use this routine if high-quality output is desired.
+ */
+
+static inline
+signed int scale(mad_fixed_t sample)
+{
+  /* round */
+  sample += (1L << (MAD_F_FRACBITS - 16));
+
+  /* clip */
+  if (sample >= MAD_F_ONE)
+    sample = MAD_F_ONE - 1;
+  else if (sample < -MAD_F_ONE)
+    sample = -MAD_F_ONE;
+
+  /* quantize */
+  return sample >> (MAD_F_FRACBITS + 1 - 16);
+}
+
+/*
+ * This is the output callback function. It is called after each frame of
+ * MPEG audio data has been completely decoded. The purpose of this callback
+ * is to output (or play) the decoded PCM audio.
+ */
+
+static
+enum mad_flow output(void *data,
+		     struct mad_header const *header,
+		     struct mad_pcm *pcm)
+{
+  unsigned int nchannels, nsamples;
+  mad_fixed_t const *left_ch, *right_ch;
+
+  /* pcm->samplerate contains the sampling frequency */
+
+  nchannels = pcm->channels;
+  nsamples  = pcm->length;
+  left_ch   = pcm->samples[0];
+  right_ch  = pcm->samples[1];
+
+  while (nsamples--) {
+    signed int sample;
+
+    /* output sample(s) in 16-bit signed little-endian PCM */
+
+    sample = scale(*left_ch++);
+    putchar((sample >> 0) & 0xff);
+    putchar((sample >> 8) & 0xff);
+
+    if (nchannels == 2) {
+      sample = scale(*right_ch++);
+      putchar((sample >> 0) & 0xff);
+      putchar((sample >> 8) & 0xff);
+    }
+  }
+
+  return MAD_FLOW_CONTINUE;
+}
+
+/*
+ * This is the error callback function. It is called whenever a decoding
+ * error occurs. The error is indicated by stream->error; the list of
+ * possible MAD_ERROR_* errors can be found in the mad.h (or stream.h)
+ * header file.
+ */
+
+static
+enum mad_flow error(void *data,
+		    struct mad_stream *stream,
+		    struct mad_frame *frame)
+{
+  struct buffer *buffer = data;
+
+  fprintf(stderr, "decoding error 0x%04x (%s) at byte offset %u\n",
+	  stream->error, mad_stream_errorstr(stream),
+	  stream->this_frame - buffer->start);
+
+  /* return MAD_FLOW_BREAK here to stop decoding (and propagate an error) */
+
+  return MAD_FLOW_CONTINUE;
+}
+
+/*
+ * This is the function called by main() above to perform all the decoding.
+ * It instantiates a decoder object and configures it with the input,
+ * output, and error callback functions above. A single call to
+ * mad_decoder_run() continues until a callback function returns
+ * MAD_FLOW_STOP (to stop decoding) or MAD_FLOW_BREAK (to stop decoding and
+ * signal an error).
+ */
+
+static
+int decode(unsigned char const *start, unsigned long length)
+{
+  struct buffer buffer;
+  struct mad_decoder decoder;
+  int result;
+
+  /* initialize our private message structure */
+
+  buffer.start  = start;
+  buffer.length = length;
+
+  /* configure input, output, and error functions */
+
+  mad_decoder_init(&decoder, &buffer,
+		   input, 0 /* header */, 0 /* filter */, output,
+		   error, 0 /* message */);
+
+  /* start decoding */
+
+  result = mad_decoder_run(&decoder, MAD_DECODER_MODE_SYNC);
+
+  /* release the decoder */
+
+  mad_decoder_finish(&decoder);
+
+  return result;
+}

lib/libmad/missing

@@ -0,0 +1,336 @@
+#! /bin/sh
+# Common stub for a few missing GNU programs while installing.
+# Copyright (C) 1996, 1997, 1999, 2000, 2002 Free Software Foundation, Inc.
+# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+if test $# -eq 0; then
+  echo 1>&2 "Try \`$0 --help' for more information"
+  exit 1
+fi
+
+run=:
+
+# In the cases where this matters, `missing' is being run in the
+# srcdir already.
+if test -f configure.ac; then
+  configure_ac=configure.ac
+else
+  configure_ac=configure.in
+fi
+
+case "$1" in
+--run)
+  # Try to run requested program, and just exit if it succeeds.
+  run=
+  shift
+  "$@" && exit 0
+  ;;
+esac
+
+# If it does not exist, or fails to run (possibly an outdated version),
+# try to emulate it.
+case "$1" in
+
+  -h|--h|--he|--hel|--help)
+    echo "\
+$0 [OPTION]... PROGRAM [ARGUMENT]...
+
+Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
+error status if there is no known handling for PROGRAM.
+
+Options:
+  -h, --help      display this help and exit
+  -v, --version   output version information and exit
+  --run           try to run the given command, and emulate it if it fails
+
+Supported PROGRAM values:
+  aclocal      touch file \`aclocal.m4'
+  autoconf     touch file \`configure'
+  autoheader   touch file \`config.h.in'
+  automake     touch all \`Makefile.in' files
+  bison        create \`y.tab.[ch]', if possible, from existing .[ch]
+  flex         create \`lex.yy.c', if possible, from existing .c
+  help2man     touch the output file
+  lex          create \`lex.yy.c', if possible, from existing .c
+  makeinfo     touch the output file
+  tar          try tar, gnutar, gtar, then tar without non-portable flags
+  yacc         create \`y.tab.[ch]', if possible, from existing .[ch]"
+    ;;
+
+  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+    echo "missing 0.4 - GNU automake"
+    ;;
+
+  -*)
+    echo 1>&2 "$0: Unknown \`$1' option"
+    echo 1>&2 "Try \`$0 --help' for more information"
+    exit 1
+    ;;
+
+  aclocal*)
+    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+       # We have it, but it failed.
+       exit 1
+    fi
+
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
+         to install the \`Automake' and \`Perl' packages.  Grab them from
+         any GNU archive site."
+    touch aclocal.m4
+    ;;
+
+  autoconf)
+    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+       # We have it, but it failed.
+       exit 1
+    fi
+
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified \`${configure_ac}'.  You might want to install the
+         \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
+         archive site."
+    touch configure
+    ;;
+
+  autoheader)
+    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+       # We have it, but it failed.
+       exit 1
+    fi
+
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified \`acconfig.h' or \`${configure_ac}'.  You might want
+         to install the \`Autoconf' and \`GNU m4' packages.  Grab them
+         from any GNU archive site."
+    files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
+    test -z "$files" && files="config.h"
+    touch_files=
+    for f in $files; do
+      case "$f" in
+      *:*) touch_files="$touch_files "`echo "$f" |
+				       sed -e 's/^[^:]*://' -e 's/:.*//'`;;
+      *) touch_files="$touch_files $f.in";;
+      esac
+    done
+    touch $touch_files
+    ;;
+
+  automake*)
+    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+       # We have it, but it failed.
+       exit 1
+    fi
+
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
+         You might want to install the \`Automake' and \`Perl' packages.
+         Grab them from any GNU archive site."
+    find . -type f -name Makefile.am -print |
+	   sed 's/\.am$/.in/' |
+	   while read f; do touch "$f"; done
+    ;;
+
+  autom4te)
+    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+       # We have it, but it failed.
+       exit 1
+    fi
+
+    echo 1>&2 "\
+WARNING: \`$1' is needed, and you do not seem to have it handy on your
+         system.  You might have modified some files without having the
+         proper tools for further handling them.
+         You can get \`$1Help2man' as part of \`Autoconf' from any GNU
+         archive site."
+
+    file=`echo "$*" | sed -n 's/.*--output[ =]*\([^ ]*\).*/\1/p'`
+    test -z "$file" && file=`echo "$*" | sed -n 's/.*-o[ ]*\([^ ]*\).*/\1/p'`
+    if test -f "$file"; then
+	touch $file
+    else
+	test -z "$file" || exec >$file
+	echo "#! /bin/sh"
+	echo "# Created by GNU Automake missing as a replacement of"
+	echo "#  $ $@"
+	echo "exit 0"
+	chmod +x $file
+	exit 1
+    fi
+    ;;
+
+  bison|yacc)
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified a \`.y' file.  You may need the \`Bison' package
+         in order for those modifications to take effect.  You can get
+         \`Bison' from any GNU archive site."
+    rm -f y.tab.c y.tab.h
+    if [ $# -ne 1 ]; then
+        eval LASTARG="\${$#}"
+	case "$LASTARG" in
+	*.y)
+	    SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
+	    if [ -f "$SRCFILE" ]; then
+	         cp "$SRCFILE" y.tab.c
+	    fi
+	    SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
+	    if [ -f "$SRCFILE" ]; then
+	         cp "$SRCFILE" y.tab.h
+	    fi
+	  ;;
+	esac
+    fi
+    if [ ! -f y.tab.h ]; then
+	echo >y.tab.h
+    fi
+    if [ ! -f y.tab.c ]; then
+	echo 'main() { return 0; }' >y.tab.c
+    fi
+    ;;
+
+  lex|flex)
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified a \`.l' file.  You may need the \`Flex' package
+         in order for those modifications to take effect.  You can get
+         \`Flex' from any GNU archive site."
+    rm -f lex.yy.c
+    if [ $# -ne 1 ]; then
+        eval LASTARG="\${$#}"
+	case "$LASTARG" in
+	*.l)
+	    SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
+	    if [ -f "$SRCFILE" ]; then
+	         cp "$SRCFILE" lex.yy.c
+	    fi
+	  ;;
+	esac
+    fi
+    if [ ! -f lex.yy.c ]; then
+	echo 'main() { return 0; }' >lex.yy.c
+    fi
+    ;;
+
+  help2man)
+    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+       # We have it, but it failed.
+       exit 1
+    fi
+
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+	 you modified a dependency of a manual page.  You may need the
+	 \`Help2man' package in order for those modifications to take
+	 effect.  You can get \`Help2man' from any GNU archive site."
+
+    file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
+    if test -z "$file"; then
+	file=`echo "$*" | sed -n 's/.*--output=\([^ ]*\).*/\1/p'`
+    fi
+    if [ -f "$file" ]; then
+	touch $file
+    else
+	test -z "$file" || exec >$file
+	echo ".ab help2man is required to generate this page"
+	exit 1
+    fi
+    ;;
+
+  makeinfo)
+    if test -z "$run" && (makeinfo --version) > /dev/null 2>&1; then
+       # We have makeinfo, but it failed.
+       exit 1
+    fi
+
+    echo 1>&2 "\
+WARNING: \`$1' is missing on your system.  You should only need it if
+         you modified a \`.texi' or \`.texinfo' file, or any other file
+         indirectly affecting the aspect of the manual.  The spurious
+         call might also be the consequence of using a buggy \`make' (AIX,
+         DU, IRIX).  You might want to install the \`Texinfo' package or
+         the \`GNU make' package.  Grab either from any GNU archive site."
+    file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
+    if test -z "$file"; then
+      file=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
+      file=`sed -n '/^@setfilename/ { s/.* \([^ ]*\) *$/\1/; p; q; }' $file`
+    fi
+    touch $file
+    ;;
+
+  tar)
+    shift
+    if test -n "$run"; then
+      echo 1>&2 "ERROR: \`tar' requires --run"
+      exit 1
+    fi
+
+    # We have already tried tar in the generic part.
+    # Look for gnutar/gtar before invocation to avoid ugly error
+    # messages.
+    if (gnutar --version > /dev/null 2>&1); then
+       gnutar "$@" && exit 0
+    fi
+    if (gtar --version > /dev/null 2>&1); then
+       gtar "$@" && exit 0
+    fi
+    firstarg="$1"
+    if shift; then
+	case "$firstarg" in
+	*o*)
+	    firstarg=`echo "$firstarg" | sed s/o//`
+	    tar "$firstarg" "$@" && exit 0
+	    ;;
+	esac
+	case "$firstarg" in
+	*h*)
+	    firstarg=`echo "$firstarg" | sed s/h//`
+	    tar "$firstarg" "$@" && exit 0
+	    ;;
+	esac
+    fi
+
+    echo 1>&2 "\
+WARNING: I can't seem to be able to run \`tar' with the given arguments.
+         You may want to install GNU tar or Free paxutils, or check the
+         command line arguments."
+    exit 1
+    ;;
+
+  *)
+    echo 1>&2 "\
+WARNING: \`$1' is needed, and you do not seem to have it handy on your
+         system.  You might have modified some files without having the
+         proper tools for further handling them.  Check the \`README' file,
+         it often tells you about the needed prerequirements for installing
+         this package.  You may also peek at any GNU archive site, in case
+         some other package would contain this missing \`$1' program."
+    exit 1
+    ;;
+esac
+
+exit 0

lib/libmad/mkinstalldirs

@@ -0,0 +1,111 @@
+#! /bin/sh
+# mkinstalldirs --- make directory hierarchy
+# Author: Noah Friedman <friedman@prep.ai.mit.edu>
+# Created: 1993-05-16
+# Public domain
+
+errstatus=0
+dirmode=""
+
+usage="\
+Usage: mkinstalldirs [-h] [--help] [-m mode] dir ..."
+
+# process command line arguments
+while test $# -gt 0 ; do
+  case $1 in
+    -h | --help | --h*)         # -h for help
+      echo "$usage" 1>&2
+      exit 0
+      ;;
+    -m)                         # -m PERM arg
+      shift
+      test $# -eq 0 && { echo "$usage" 1>&2; exit 1; }
+      dirmode=$1
+      shift
+      ;;
+    --)                         # stop option processing
+      shift
+      break
+      ;;
+    -*)                         # unknown option
+      echo "$usage" 1>&2
+      exit 1
+      ;;
+    *)                          # first non-opt arg
+      break
+      ;;
+  esac
+done
+
+for file
+do
+  if test -d "$file"; then
+    shift
+  else
+    break
+  fi
+done
+
+case $# in
+  0) exit 0 ;;
+esac
+
+case $dirmode in
+  '')
+    if mkdir -p -- . 2>/dev/null; then
+      echo "mkdir -p -- $*"
+      exec mkdir -p -- "$@"
+    fi
+    ;;
+  *)
+    if mkdir -m "$dirmode" -p -- . 2>/dev/null; then
+      echo "mkdir -m $dirmode -p -- $*"
+      exec mkdir -m "$dirmode" -p -- "$@"
+    fi
+    ;;
+esac
+
+for file
+do
+  set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
+  shift
+
+  pathcomp=
+  for d
+  do
+    pathcomp="$pathcomp$d"
+    case $pathcomp in
+      -*) pathcomp=./$pathcomp ;;
+    esac
+
+    if test ! -d "$pathcomp"; then
+      echo "mkdir $pathcomp"
+
+      mkdir "$pathcomp" || lasterr=$?
+
+      if test ! -d "$pathcomp"; then
+  	errstatus=$lasterr
+      else
+  	if test ! -z "$dirmode"; then
+	  echo "chmod $dirmode $pathcomp"
+    	  lasterr=""
+  	  chmod "$dirmode" "$pathcomp" || lasterr=$?
+
+  	  if test ! -z "$lasterr"; then
+  	    errstatus=$lasterr
+  	  fi
+  	fi
+      fi
+    fi
+
+    pathcomp="$pathcomp/"
+  done
+done
+
+exit $errstatus
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# End:
+# mkinstalldirs ends here

lib/libmad/msvc++/Makefile.am

@@ -0,0 +1,24 @@
+##
+## libmad - MPEG audio decoder library
+## Copyright (C) 2000-2004 Underbit Technologies, Inc.
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+##
+## $Id: Makefile.am,v 1.3 2004/01/23 09:41:33 rob Exp $
+##
+
+## Process this file with automake to produce Makefile.in
+
+EXTRA_DIST =		mad.h config.h libmad.dsp

lib/libmad/msvc++/Makefile.in

@@ -0,0 +1,312 @@
+# Makefile.in generated by automake 1.8.2 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004  Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+top_builddir = ..
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = @INSTALL@
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+host_triplet = @host@
+subdir = msvc++
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+SOURCES =
+DIST_SOURCES =
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMDEP_FALSE = @AMDEP_FALSE@
+AMDEP_TRUE = @AMDEP_TRUE@
+AMTAR = @AMTAR@
+AR = @AR@
+ASO = @ASO@
+ASO_OBJS = @ASO_OBJS@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+CC = @CC@
+CCAS = @CCAS@
+CCASFLAGS = @CCASFLAGS@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+ECHO = @ECHO@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+EXEEXT = @EXEEXT@
+F77 = @F77@
+FFLAGS = @FFLAGS@
+FPM = @FPM@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LDFLAGS = @LDFLAGS@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LIBTOOL = @LIBTOOL@
+LIBTOOL_DEPS = @LIBTOOL_DEPS@
+LN_S = @LN_S@
+LTLIBOBJS = @LTLIBOBJS@
+MAKEINFO = @MAKEINFO@
+OBJEXT = @OBJEXT@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+RANLIB = @RANLIB@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+STRIP = @STRIP@
+VERSION = @VERSION@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_F77 = @ac_ct_F77@
+ac_ct_RANLIB = @ac_ct_RANLIB@
+ac_ct_STRIP = @ac_ct_STRIP@
+am__fastdepCC_FALSE = @am__fastdepCC_FALSE@
+am__fastdepCC_TRUE = @am__fastdepCC_TRUE@
+am__fastdepCXX_FALSE = @am__fastdepCXX_FALSE@
+am__fastdepCXX_TRUE = @am__fastdepCXX_TRUE@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+datadir = @datadir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+EXTRA_DIST = mad.h config.h libmad.dsp
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
+		&& exit 0; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign  msvc++/Makefile'; \
+	cd $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign  msvc++/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+distclean-libtool:
+	-rm -f libtool
+uninstall-info-am:
+tags: TAGS
+TAGS:
+
+ctags: CTAGS
+CTAGS:
+
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's|.|.|g'`; \
+	list='$(DISTFILES)'; for file in $$list; do \
+	  case $$file in \
+	    $(srcdir)/*) file=`echo "$$file" | sed "s|^$$srcdirstrip/||"`;; \
+	    $(top_srcdir)/*) file=`echo "$$file" | sed "s|^$$topsrcdirstrip/|$(top_builddir)/|"`;; \
+	  esac; \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+	  if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+	    dir="/$$dir"; \
+	    $(mkdir_p) "$(distdir)$$dir"; \
+	  else \
+	    dir=''; \
+	  fi; \
+	  if test -d $$d/$$file; then \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+	    fi; \
+	    cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+	  else \
+	    test -f $(distdir)/$$file \
+	    || cp -p $$d/$$file $(distdir)/$$file \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-libtool
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-exec-am:
+
+install-info: install-info-am
+
+install-man:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-info-am
+
+.PHONY: all all-am check check-am clean clean-generic clean-libtool \
+	distclean distclean-generic distclean-libtool distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-exec install-exec-am \
+	install-info install-info-am install-man install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am uninstall uninstall-am \
+	uninstall-info-am
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

lib/libmad/msvc++/config.h

@@ -0,0 +1,130 @@
+/* config.h.  Generated by configure.  */
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Define to enable diagnostic debugging support. */
+/* #undef DEBUG */
+
+/* Define to enable experimental code. */
+/* #undef EXPERIMENTAL */
+
+/* Define to 1 if you have the <assert.h> header file. */
+#define HAVE_ASSERT_H 1
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+/* #undef HAVE_DLFCN_H */
+
+/* Define to 1 if you have the <errno.h> header file. */
+#define HAVE_ERRNO_H 1
+
+/* Define to 1 if you have the `fcntl' function. */
+/* #undef HAVE_FCNTL */
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#define HAVE_FCNTL_H 1
+
+/* Define to 1 if you have the `fork' function. */
+/* #undef HAVE_FORK */
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the <limits.h> header file. */
+#define HAVE_LIMITS_H 1
+
+/* Define if your MIPS CPU supports a 2-operand MADD16 instruction. */
+/* #undef HAVE_MADD16_ASM */
+
+/* Define if your MIPS CPU supports a 2-operand MADD instruction. */
+/* #undef HAVE_MADD_ASM */
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the `pipe' function. */
+/* #undef HAVE_PIPE */
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
+/* #undef HAVE_SYS_WAIT_H */
+
+/* Define to 1 if you have the <unistd.h> header file. */
+/* #undef HAVE_UNISTD_H */
+
+/* Define to 1 if you have the `waitpid' function. */
+/* #undef HAVE_WAITPID */
+
+/* Define to disable debugging assertions. */
+/* #undef NDEBUG */
+
+/* Define to optimize for accuracy over speed. */
+/* #undef OPT_ACCURACY */
+
+/* Define to optimize for speed over accuracy. */
+/* #undef OPT_SPEED */
+
+/* Define to enable a fast subband synthesis approximation optimization. */
+/* #undef OPT_SSO */
+
+/* Define to influence a strict interpretation of the ISO/IEC standards, even
+   if this is in opposition with best accepted practices. */
+/* #undef OPT_STRICT */
+
+/* Name of package */
+#define PACKAGE "libmad"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "support@underbit.com"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "MPEG Audio Decoder"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "MPEG Audio Decoder 0.15.1b"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "libmad"
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "0.15.1b"
+
+/* The size of a `int', as computed by sizeof. */
+#define SIZEOF_INT 4
+
+/* The size of a `long', as computed by sizeof. */
+#define SIZEOF_LONG 4
+
+/* The size of a `long long', as computed by sizeof. */
+#define SIZEOF_LONG_LONG 8
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Version number of package */
+#define VERSION "0.15.1b"
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Define as `__inline' if that's what the C compiler calls it, or to nothing
+   if it is not supported. */
+#define inline __inline
+
+/* Define to `int' if <sys/types.h> does not define. */
+/* #undef pid_t */

lib/libmad/msvc++/libmad.dsp

@@ -0,0 +1,214 @@
+# Microsoft Developer Studio Project File - Name="libmad" - Package Owner=<4>
+# Microsoft Developer Studio Generated Build File, Format Version 6.00
+# ** DO NOT EDIT **
+
+# TARGTYPE "Win32 (x86) Static Library" 0x0104
+
+CFG=libmad - Win32 Debug
+!MESSAGE This is not a valid makefile. To build this project using NMAKE,
+!MESSAGE use the Export Makefile command and run
+!MESSAGE 
+!MESSAGE NMAKE /f "libmad.mak".
+!MESSAGE 
+!MESSAGE You can specify a configuration when running NMAKE
+!MESSAGE by defining the macro CFG on the command line. For example:
+!MESSAGE 
+!MESSAGE NMAKE /f "libmad.mak" CFG="libmad - Win32 Debug"
+!MESSAGE 
+!MESSAGE Possible choices for configuration are:
+!MESSAGE 
+!MESSAGE "libmad - Win32 Release" (based on "Win32 (x86) Static Library")
+!MESSAGE "libmad - Win32 Debug" (based on "Win32 (x86) Static Library")
+!MESSAGE 
+
+# Begin Project
+# PROP AllowPerConfigDependencies 0
+# PROP Scc_ProjName ""
+# PROP Scc_LocalPath ""
+CPP=cl.exe
+RSC=rc.exe
+
+!IF  "$(CFG)" == "libmad - Win32 Release"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "Release"
+# PROP BASE Intermediate_Dir "Release"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 0
+# PROP Output_Dir "Release"
+# PROP Intermediate_Dir "Release"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_MBCS" /D "_LIB" /YX /FD /c
+# ADD CPP /nologo /GX /O2 /I "." /D "NDEBUG" /D "FPM_INTEL" /D "WIN32" /D "_MBCS" /D "_LIB" /D "HAVE_CONFIG_H" /D "ASO_ZEROCHECK" /FD /c
+# SUBTRACT CPP /YX
+# ADD BASE RSC /l 0x409 /d "NDEBUG"
+# ADD RSC /l 0x409 /d "NDEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LIB32=link.exe -lib
+# ADD BASE LIB32 /nologo
+# ADD LIB32 /nologo
+
+!ELSEIF  "$(CFG)" == "libmad - Win32 Debug"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "Debug"
+# PROP BASE Intermediate_Dir "Debug"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 1
+# PROP Output_Dir "Debug"
+# PROP Intermediate_Dir "Debug"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_MBCS" /D "_LIB" /YX /FD /GZ /c
+# ADD CPP /nologo /Gm /GX /ZI /Od /I "." /D "FPM_DEFAULT" /D "_LIB" /D "HAVE_CONFIG_H" /D "ASO_ZEROCHECK" /D "WIN32" /D "_DEBUG" /D "_MBCS" /D "DEBUG" /FD /GZ /c
+# SUBTRACT CPP /YX
+# ADD BASE RSC /l 0x409 /d "_DEBUG"
+# ADD RSC /l 0x409 /d "_DEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LIB32=link.exe -lib
+# ADD BASE LIB32 /nologo
+# ADD LIB32 /nologo
+
+!ENDIF 
+
+# Begin Target
+
+# Name "libmad - Win32 Release"
+# Name "libmad - Win32 Debug"
+# Begin Group "Source Files"
+
+# PROP Default_Filter "c"
+# Begin Source File
+
+SOURCE=..\bit.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\decoder.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\fixed.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\frame.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\huffman.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\layer12.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\layer3.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\stream.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\synth.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\timer.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\version.c
+# End Source File
+# End Group
+# Begin Group "Header Files"
+
+# PROP Default_Filter "h"
+# Begin Source File
+
+SOURCE=..\bit.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\config.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\decoder.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\fixed.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\frame.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\global.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\huffman.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\layer12.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\layer3.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\stream.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\synth.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\timer.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\version.h
+# End Source File
+# End Group
+# Begin Group "Data Files"
+
+# PROP Default_Filter "dat"
+# Begin Source File
+
+SOURCE=..\D.dat
+# End Source File
+# Begin Source File
+
+SOURCE=..\imdct_s.dat
+# End Source File
+# Begin Source File
+
+SOURCE=..\qc_table.dat
+# End Source File
+# Begin Source File
+
+SOURCE=..\rq_table.dat
+# End Source File
+# Begin Source File
+
+SOURCE=..\sf_table.dat
+# End Source File
+# End Group
+# End Target
+# End Project

lib/libmad/msvc++/mad.h

@@ -0,0 +1,948 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * If you would like to negotiate alternate licensing terms, you may do
+ * so by contacting: Underbit Technologies, Inc. <info@underbit.com>
+ */
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+# define FPM_INTEL
+
+
+
+# define SIZEOF_INT 4
+# define SIZEOF_LONG 4
+# define SIZEOF_LONG_LONG 8
+
+
+/* Id: version.h,v 1.24 2003/05/27 22:40:37 rob Exp */
+
+# ifndef LIBMAD_VERSION_H
+# define LIBMAD_VERSION_H
+
+# define MAD_VERSION_MAJOR	0
+# define MAD_VERSION_MINOR	15
+# define MAD_VERSION_PATCH	1
+# define MAD_VERSION_EXTRA	" (beta)"
+
+# define MAD_VERSION_STRINGIZE(str)	#str
+# define MAD_VERSION_STRING(num)	MAD_VERSION_STRINGIZE(num)
+
+# define MAD_VERSION		MAD_VERSION_STRING(MAD_VERSION_MAJOR) "."  \
+				MAD_VERSION_STRING(MAD_VERSION_MINOR) "."  \
+				MAD_VERSION_STRING(MAD_VERSION_PATCH)  \
+				MAD_VERSION_EXTRA
+
+# define MAD_PUBLISHYEAR	"2000-2003"
+# define MAD_AUTHOR		"Underbit Technologies, Inc."
+# define MAD_EMAIL		"info@underbit.com"
+
+extern char const mad_version[];
+extern char const mad_copyright[];
+extern char const mad_author[];
+extern char const mad_build[];
+
+# endif
+
+/* Id: fixed.h,v 1.36 2003/05/28 04:36:00 rob Exp */
+
+# ifndef LIBMAD_FIXED_H
+# define LIBMAD_FIXED_H
+
+# if SIZEOF_INT >= 4
+typedef   signed int mad_fixed_t;
+
+typedef   signed int mad_fixed64hi_t;
+typedef unsigned int mad_fixed64lo_t;
+# else
+typedef   signed long mad_fixed_t;
+
+typedef   signed long mad_fixed64hi_t;
+typedef unsigned long mad_fixed64lo_t;
+# endif
+
+# if defined(_MSC_VER)
+#  define mad_fixed64_t  signed __int64
+# elif 1 || defined(__GNUC__)
+#  define mad_fixed64_t  signed long long
+# endif
+
+# if defined(FPM_FLOAT)
+typedef double mad_sample_t;
+# else
+typedef mad_fixed_t mad_sample_t;
+# endif
+
+/*
+ * Fixed-point format: 0xABBBBBBB
+ * A == whole part      (sign + 3 bits)
+ * B == fractional part (28 bits)
+ *
+ * Values are signed two's complement, so the effective range is:
+ * 0x80000000 to 0x7fffffff
+ *       -8.0 to +7.9999999962747097015380859375
+ *
+ * The smallest representable value is:
+ * 0x00000001 == 0.0000000037252902984619140625 (i.e. about 3.725e-9)
+ *
+ * 28 bits of fractional accuracy represent about
+ * 8.6 digits of decimal accuracy.
+ *
+ * Fixed-point numbers can be added or subtracted as normal
+ * integers, but multiplication requires shifting the 64-bit result
+ * from 56 fractional bits back to 28 (and rounding.)
+ *
+ * Changing the definition of MAD_F_FRACBITS is only partially
+ * supported, and must be done with care.
+ */
+
+# define MAD_F_FRACBITS		28
+
+# if MAD_F_FRACBITS == 28
+#  define MAD_F(x)		((mad_fixed_t) (x##L))
+# else
+#  if MAD_F_FRACBITS < 28
+#   warning "MAD_F_FRACBITS < 28"
+#   define MAD_F(x)		((mad_fixed_t)  \
+				 (((x##L) +  \
+				   (1L << (28 - MAD_F_FRACBITS - 1))) >>  \
+				  (28 - MAD_F_FRACBITS)))
+#  elif MAD_F_FRACBITS > 28
+#   error "MAD_F_FRACBITS > 28 not currently supported"
+#   define MAD_F(x)		((mad_fixed_t)  \
+				 ((x##L) << (MAD_F_FRACBITS - 28)))
+#  endif
+# endif
+
+# define MAD_F_MIN		((mad_fixed_t) -0x80000000L)
+# define MAD_F_MAX		((mad_fixed_t) +0x7fffffffL)
+
+# define MAD_F_ONE		MAD_F(0x10000000)
+
+# define mad_f_tofixed(x)	((mad_fixed_t)  \
+				 ((x) * (double) (1L << MAD_F_FRACBITS) + 0.5))
+# define mad_f_todouble(x)	((double)  \
+				 ((x) / (double) (1L << MAD_F_FRACBITS)))
+
+# define mad_f_intpart(x)	((x) >> MAD_F_FRACBITS)
+# define mad_f_fracpart(x)	((x) & ((1L << MAD_F_FRACBITS) - 1))
+				/* (x should be positive) */
+
+# define mad_f_fromint(x)	((x) << MAD_F_FRACBITS)
+
+# define mad_f_add(x, y)	((x) + (y))
+# define mad_f_sub(x, y)	((x) - (y))
+
+# if defined(FPM_FLOAT)
+#  error "FPM_FLOAT not yet supported"
+
+#  undef MAD_F
+#  define MAD_F(x)		mad_f_todouble(x)
+
+#  define mad_f_mul(x, y)	((x) * (y))
+#  define mad_f_scale64
+
+#  undef ASO_ZEROCHECK
+
+# elif defined(FPM_64BIT)
+
+/*
+ * This version should be the most accurate if 64-bit types are supported by
+ * the compiler, although it may not be the most efficient.
+ */
+#  if defined(OPT_ACCURACY)
+#   define mad_f_mul(x, y)  \
+    ((mad_fixed_t)  \
+     ((((mad_fixed64_t) (x) * (y)) +  \
+       (1L << (MAD_F_SCALEBITS - 1))) >> MAD_F_SCALEBITS))
+#  else
+#   define mad_f_mul(x, y)  \
+    ((mad_fixed_t) (((mad_fixed64_t) (x) * (y)) >> MAD_F_SCALEBITS))
+#  endif
+
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+
+/* --- Intel --------------------------------------------------------------- */
+
+# elif defined(FPM_INTEL)
+
+#  if defined(_MSC_VER)
+#   pragma warning(push)
+#   pragma warning(disable: 4035)  /* no return value */
+static __forceinline
+mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y)
+{
+  enum {
+    fracbits = MAD_F_FRACBITS
+  };
+
+  __asm {
+    mov eax, x
+    imul y
+    shrd eax, edx, fracbits
+  }
+
+  /* implicit return of eax */
+}
+#   pragma warning(pop)
+
+#   define mad_f_mul		mad_f_mul_inline
+#   define mad_f_scale64
+#  else
+/*
+ * This Intel version is fast and accurate; the disposition of the least
+ * significant bit depends on OPT_ACCURACY via mad_f_scale64().
+ */
+#   define MAD_F_MLX(hi, lo, x, y)  \
+    asm ("imull %3"  \
+	 : "=a" (lo), "=d" (hi)  \
+	 : "%a" (x), "rm" (y)  \
+	 : "cc")
+
+#   if defined(OPT_ACCURACY)
+/*
+ * This gives best accuracy but is not very fast.
+ */
+#    define MAD_F_MLA(hi, lo, x, y)  \
+    ({ mad_fixed64hi_t __hi;  \
+       mad_fixed64lo_t __lo;  \
+       MAD_F_MLX(__hi, __lo, (x), (y));  \
+       asm ("addl %2,%0\n\t"  \
+	    "adcl %3,%1"  \
+	    : "=rm" (lo), "=rm" (hi)  \
+	    : "r" (__lo), "r" (__hi), "0" (lo), "1" (hi)  \
+	    : "cc");  \
+    })
+#   endif  /* OPT_ACCURACY */
+
+#   if defined(OPT_ACCURACY)
+/*
+ * Surprisingly, this is faster than SHRD followed by ADC.
+ */
+#    define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed64hi_t __hi_;  \
+       mad_fixed64lo_t __lo_;  \
+       mad_fixed_t __result;  \
+       asm ("addl %4,%2\n\t"  \
+	    "adcl %5,%3"  \
+	    : "=rm" (__lo_), "=rm" (__hi_)  \
+	    : "0" (lo), "1" (hi),  \
+	      "ir" (1L << (MAD_F_SCALEBITS - 1)), "ir" (0)  \
+	    : "cc");  \
+       asm ("shrdl %3,%2,%1"  \
+	    : "=rm" (__result)  \
+	    : "0" (__lo_), "r" (__hi_), "I" (MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+#    else
+#    define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result;  \
+       asm ("shrdl %3,%2,%1"  \
+	    : "=rm" (__result)  \
+	    : "0" (lo), "r" (hi), "I" (MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+#   endif  /* OPT_ACCURACY */
+
+#   define MAD_F_SCALEBITS  MAD_F_FRACBITS
+#  endif
+
+/* --- ARM ----------------------------------------------------------------- */
+
+# elif defined(FPM_ARM)
+
+/* 
+ * This ARM V4 version is as accurate as FPM_64BIT but much faster. The
+ * least significant bit is properly rounded at no CPU cycle cost!
+ */
+# if 1
+/*
+ * This is faster than the default implementation via MAD_F_MLX() and
+ * mad_f_scale64().
+ */
+#  define mad_f_mul(x, y)  \
+    ({ mad_fixed64hi_t __hi;  \
+       mad_fixed64lo_t __lo;  \
+       mad_fixed_t __result;  \
+       asm ("smull	%0, %1, %3, %4\n\t"  \
+	    "movs	%0, %0, lsr %5\n\t"  \
+	    "adc	%2, %0, %1, lsl %6"  \
+	    : "=&r" (__lo), "=&r" (__hi), "=r" (__result)  \
+	    : "%r" (x), "r" (y),  \
+	      "M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+# endif
+
+#  define MAD_F_MLX(hi, lo, x, y)  \
+    asm ("smull	%0, %1, %2, %3"  \
+	 : "=&r" (lo), "=&r" (hi)  \
+	 : "%r" (x), "r" (y))
+
+#  define MAD_F_MLA(hi, lo, x, y)  \
+    asm ("smlal	%0, %1, %2, %3"  \
+	 : "+r" (lo), "+r" (hi)  \
+	 : "%r" (x), "r" (y))
+
+#  define MAD_F_MLN(hi, lo)  \
+    asm ("rsbs	%0, %2, #0\n\t"  \
+	 "rsc	%1, %3, #0"  \
+	 : "=r" (lo), "=r" (hi)  \
+	 : "0" (lo), "1" (hi)  \
+	 : "cc")
+
+#  define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result;  \
+       asm ("movs	%0, %1, lsr %3\n\t"  \
+	    "adc	%0, %0, %2, lsl %4"  \
+	    : "=&r" (__result)  \
+	    : "r" (lo), "r" (hi),  \
+	      "M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS)  \
+	    : "cc");  \
+       __result;  \
+    })
+
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+
+/* --- MIPS ---------------------------------------------------------------- */
+
+# elif defined(FPM_MIPS)
+
+/*
+ * This MIPS version is fast and accurate; the disposition of the least
+ * significant bit depends on OPT_ACCURACY via mad_f_scale64().
+ */
+#  define MAD_F_MLX(hi, lo, x, y)  \
+    asm ("mult	%2,%3"  \
+	 : "=l" (lo), "=h" (hi)  \
+	 : "%r" (x), "r" (y))
+
+# if defined(HAVE_MADD_ASM)
+#  define MAD_F_MLA(hi, lo, x, y)  \
+    asm ("madd	%2,%3"  \
+	 : "+l" (lo), "+h" (hi)  \
+	 : "%r" (x), "r" (y))
+# elif defined(HAVE_MADD16_ASM)
+/*
+ * This loses significant accuracy due to the 16-bit integer limit in the
+ * multiply/accumulate instruction.
+ */
+#  define MAD_F_ML0(hi, lo, x, y)  \
+    asm ("mult	%2,%3"  \
+	 : "=l" (lo), "=h" (hi)  \
+	 : "%r" ((x) >> 12), "r" ((y) >> 16))
+#  define MAD_F_MLA(hi, lo, x, y)  \
+    asm ("madd16	%2,%3"  \
+	 : "+l" (lo), "+h" (hi)  \
+	 : "%r" ((x) >> 12), "r" ((y) >> 16))
+#  define MAD_F_MLZ(hi, lo)  ((mad_fixed_t) (lo))
+# endif
+
+# if defined(OPT_SPEED)
+#  define mad_f_scale64(hi, lo)  \
+    ((mad_fixed_t) ((hi) << (32 - MAD_F_SCALEBITS)))
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+# endif
+
+/* --- SPARC --------------------------------------------------------------- */
+
+# elif defined(FPM_SPARC)
+
+/*
+ * This SPARC V8 version is fast and accurate; the disposition of the least
+ * significant bit depends on OPT_ACCURACY via mad_f_scale64().
+ */
+#  define MAD_F_MLX(hi, lo, x, y)  \
+    asm ("smul %2, %3, %0\n\t"  \
+	 "rd %%y, %1"  \
+	 : "=r" (lo), "=r" (hi)  \
+	 : "%r" (x), "rI" (y))
+
+/* --- PowerPC ------------------------------------------------------------- */
+
+# elif defined(FPM_PPC)
+
+/*
+ * This PowerPC version is fast and accurate; the disposition of the least
+ * significant bit depends on OPT_ACCURACY via mad_f_scale64().
+ */
+#  define MAD_F_MLX(hi, lo, x, y)  \
+    do {  \
+      asm ("mullw %0,%1,%2"  \
+	   : "=r" (lo)  \
+	   : "%r" (x), "r" (y));  \
+      asm ("mulhw %0,%1,%2"  \
+	   : "=r" (hi)  \
+	   : "%r" (x), "r" (y));  \
+    }  \
+    while (0)
+
+#  if defined(OPT_ACCURACY)
+/*
+ * This gives best accuracy but is not very fast.
+ */
+#   define MAD_F_MLA(hi, lo, x, y)  \
+    ({ mad_fixed64hi_t __hi;  \
+       mad_fixed64lo_t __lo;  \
+       MAD_F_MLX(__hi, __lo, (x), (y));  \
+       asm ("addc %0,%2,%3\n\t"  \
+	    "adde %1,%4,%5"  \
+	    : "=r" (lo), "=r" (hi)  \
+	    : "%r" (lo), "r" (__lo),  \
+	      "%r" (hi), "r" (__hi)  \
+	    : "xer");  \
+    })
+#  endif
+
+#  if defined(OPT_ACCURACY)
+/*
+ * This is slower than the truncating version below it.
+ */
+#   define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result, __round;  \
+       asm ("rotrwi %0,%1,%2"  \
+	    : "=r" (__result)  \
+	    : "r" (lo), "i" (MAD_F_SCALEBITS));  \
+       asm ("extrwi %0,%1,1,0"  \
+	    : "=r" (__round)  \
+	    : "r" (__result));  \
+       asm ("insrwi %0,%1,%2,0"  \
+	    : "+r" (__result)  \
+	    : "r" (hi), "i" (MAD_F_SCALEBITS));  \
+       asm ("add %0,%1,%2"  \
+	    : "=r" (__result)  \
+	    : "%r" (__result), "r" (__round));  \
+       __result;  \
+    })
+#  else
+#   define mad_f_scale64(hi, lo)  \
+    ({ mad_fixed_t __result;  \
+       asm ("rotrwi %0,%1,%2"  \
+	    : "=r" (__result)  \
+	    : "r" (lo), "i" (MAD_F_SCALEBITS));  \
+       asm ("insrwi %0,%1,%2,0"  \
+	    : "+r" (__result)  \
+	    : "r" (hi), "i" (MAD_F_SCALEBITS));  \
+       __result;  \
+    })
+#  endif
+
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+
+/* --- Default ------------------------------------------------------------- */
+
+# elif defined(FPM_DEFAULT)
+
+/*
+ * This version is the most portable but it loses significant accuracy.
+ * Furthermore, accuracy is biased against the second argument, so care
+ * should be taken when ordering operands.
+ *
+ * The scale factors are constant as this is not used with SSO.
+ *
+ * Pre-rounding is required to stay within the limits of compliance.
+ */
+#  if defined(OPT_SPEED)
+#   define mad_f_mul(x, y)	(((x) >> 12) * ((y) >> 16))
+#  else
+#   define mad_f_mul(x, y)	((((x) + (1L << 11)) >> 12) *  \
+				 (((y) + (1L << 15)) >> 16))
+#  endif
+
+/* ------------------------------------------------------------------------- */
+
+# else
+#  error "no FPM selected"
+# endif
+
+/* default implementations */
+
+# if !defined(mad_f_mul)
+#  define mad_f_mul(x, y)  \
+    ({ register mad_fixed64hi_t __hi;  \
+       register mad_fixed64lo_t __lo;  \
+       MAD_F_MLX(__hi, __lo, (x), (y));  \
+       mad_f_scale64(__hi, __lo);  \
+    })
+# endif
+
+# if !defined(MAD_F_MLA)
+#  define MAD_F_ML0(hi, lo, x, y)	((lo)  = mad_f_mul((x), (y)))
+#  define MAD_F_MLA(hi, lo, x, y)	((lo) += mad_f_mul((x), (y)))
+#  define MAD_F_MLN(hi, lo)		((lo)  = -(lo))
+#  define MAD_F_MLZ(hi, lo)		((void) (hi), (mad_fixed_t) (lo))
+# endif
+
+# if !defined(MAD_F_ML0)
+#  define MAD_F_ML0(hi, lo, x, y)	MAD_F_MLX((hi), (lo), (x), (y))
+# endif
+
+# if !defined(MAD_F_MLN)
+#  define MAD_F_MLN(hi, lo)		((hi) = ((lo) = -(lo)) ? ~(hi) : -(hi))
+# endif
+
+# if !defined(MAD_F_MLZ)
+#  define MAD_F_MLZ(hi, lo)		mad_f_scale64((hi), (lo))
+# endif
+
+# if !defined(mad_f_scale64)
+#  if defined(OPT_ACCURACY)
+#   define mad_f_scale64(hi, lo)  \
+    ((((mad_fixed_t)  \
+       (((hi) << (32 - (MAD_F_SCALEBITS - 1))) |  \
+	((lo) >> (MAD_F_SCALEBITS - 1)))) + 1) >> 1)
+#  else
+#   define mad_f_scale64(hi, lo)  \
+    ((mad_fixed_t)  \
+     (((hi) << (32 - MAD_F_SCALEBITS)) |  \
+      ((lo) >> MAD_F_SCALEBITS)))
+#  endif
+#  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+# endif
+
+/* C routines */
+
+mad_fixed_t mad_f_abs(mad_fixed_t);
+mad_fixed_t mad_f_div(mad_fixed_t, mad_fixed_t);
+
+# endif
+
+/* Id: bit.h,v 1.11 2003/05/27 22:40:36 rob Exp */
+
+# ifndef LIBMAD_BIT_H
+# define LIBMAD_BIT_H
+
+struct mad_bitptr {
+  unsigned char const *byte;
+  unsigned short cache;
+  unsigned short left;
+};
+
+void mad_bit_init(struct mad_bitptr *, unsigned char const *);
+
+# define mad_bit_finish(bitptr)		/* nothing */
+
+unsigned int mad_bit_length(struct mad_bitptr const *,
+			    struct mad_bitptr const *);
+
+# define mad_bit_bitsleft(bitptr)  ((bitptr)->left)
+unsigned char const *mad_bit_nextbyte(struct mad_bitptr const *);
+
+void mad_bit_skip(struct mad_bitptr *, unsigned int);
+unsigned long mad_bit_read(struct mad_bitptr *, unsigned int);
+void mad_bit_write(struct mad_bitptr *, unsigned int, unsigned long);
+
+unsigned short mad_bit_crc(struct mad_bitptr, unsigned int, unsigned short);
+
+# endif
+
+/* Id: timer.h,v 1.15 2003/05/27 22:40:37 rob Exp */
+
+# ifndef LIBMAD_TIMER_H
+# define LIBMAD_TIMER_H
+
+typedef struct {
+  signed long seconds;		/* whole seconds */
+  unsigned long fraction;	/* 1/MAD_TIMER_RESOLUTION seconds */
+} mad_timer_t;
+
+extern mad_timer_t const mad_timer_zero;
+
+# define MAD_TIMER_RESOLUTION	352800000UL
+
+enum mad_units {
+  MAD_UNITS_HOURS	 =    -2,
+  MAD_UNITS_MINUTES	 =    -1,
+  MAD_UNITS_SECONDS	 =     0,
+
+  /* metric units */
+
+  MAD_UNITS_DECISECONDS	 =    10,
+  MAD_UNITS_CENTISECONDS =   100,
+  MAD_UNITS_MILLISECONDS =  1000,
+
+  /* audio sample units */
+
+  MAD_UNITS_8000_HZ	 =  8000,
+  MAD_UNITS_11025_HZ	 = 11025,
+  MAD_UNITS_12000_HZ	 = 12000,
+
+  MAD_UNITS_16000_HZ	 = 16000,
+  MAD_UNITS_22050_HZ	 = 22050,
+  MAD_UNITS_24000_HZ	 = 24000,
+
+  MAD_UNITS_32000_HZ	 = 32000,
+  MAD_UNITS_44100_HZ	 = 44100,
+  MAD_UNITS_48000_HZ	 = 48000,
+
+  /* video frame/field units */
+
+  MAD_UNITS_24_FPS	 =    24,
+  MAD_UNITS_25_FPS	 =    25,
+  MAD_UNITS_30_FPS	 =    30,
+  MAD_UNITS_48_FPS	 =    48,
+  MAD_UNITS_50_FPS	 =    50,
+  MAD_UNITS_60_FPS	 =    60,
+
+  /* CD audio frames */
+
+  MAD_UNITS_75_FPS	 =    75,
+
+  /* video drop-frame units */
+
+  MAD_UNITS_23_976_FPS	 =   -24,
+  MAD_UNITS_24_975_FPS	 =   -25,
+  MAD_UNITS_29_97_FPS	 =   -30,
+  MAD_UNITS_47_952_FPS	 =   -48,
+  MAD_UNITS_49_95_FPS	 =   -50,
+  MAD_UNITS_59_94_FPS	 =   -60
+};
+
+# define mad_timer_reset(timer)	((void) (*(timer) = mad_timer_zero))
+
+int mad_timer_compare(mad_timer_t, mad_timer_t);
+
+# define mad_timer_sign(timer)	mad_timer_compare((timer), mad_timer_zero)
+
+void mad_timer_negate(mad_timer_t *);
+mad_timer_t mad_timer_abs(mad_timer_t);
+
+void mad_timer_set(mad_timer_t *, unsigned long, unsigned long, unsigned long);
+void mad_timer_add(mad_timer_t *, mad_timer_t);
+void mad_timer_multiply(mad_timer_t *, signed long);
+
+signed long mad_timer_count(mad_timer_t, enum mad_units);
+unsigned long mad_timer_fraction(mad_timer_t, unsigned long);
+void mad_timer_string(mad_timer_t, char *, char const *,
+		      enum mad_units, enum mad_units, unsigned long);
+
+# endif
+
+/* Id: stream.h,v 1.18 2003/05/27 22:40:37 rob Exp */
+
+# ifndef LIBMAD_STREAM_H
+# define LIBMAD_STREAM_H
+
+
+# define MAD_BUFFER_GUARD	8
+# define MAD_BUFFER_MDLEN	(511 + 2048 + MAD_BUFFER_GUARD)
+
+enum mad_error {
+  MAD_ERROR_NONE	   = 0x0000,	/* no error */
+
+  MAD_ERROR_BUFLEN	   = 0x0001,	/* input buffer too small (or EOF) */
+  MAD_ERROR_BUFPTR	   = 0x0002,	/* invalid (null) buffer pointer */
+
+  MAD_ERROR_NOMEM	   = 0x0031,	/* not enough memory */
+
+  MAD_ERROR_LOSTSYNC	   = 0x0101,	/* lost synchronization */
+  MAD_ERROR_BADLAYER	   = 0x0102,	/* reserved header layer value */
+  MAD_ERROR_BADBITRATE	   = 0x0103,	/* forbidden bitrate value */
+  MAD_ERROR_BADSAMPLERATE  = 0x0104,	/* reserved sample frequency value */
+  MAD_ERROR_BADEMPHASIS	   = 0x0105,	/* reserved emphasis value */
+
+  MAD_ERROR_BADCRC	   = 0x0201,	/* CRC check failed */
+  MAD_ERROR_BADBITALLOC	   = 0x0211,	/* forbidden bit allocation value */
+  MAD_ERROR_BADSCALEFACTOR = 0x0221,	/* bad scalefactor index */
+  MAD_ERROR_BADFRAMELEN	   = 0x0231,	/* bad frame length */
+  MAD_ERROR_BADBIGVALUES   = 0x0232,	/* bad big_values count */
+  MAD_ERROR_BADBLOCKTYPE   = 0x0233,	/* reserved block_type */
+  MAD_ERROR_BADSCFSI	   = 0x0234,	/* bad scalefactor selection info */
+  MAD_ERROR_BADDATAPTR	   = 0x0235,	/* bad main_data_begin pointer */
+  MAD_ERROR_BADPART3LEN	   = 0x0236,	/* bad audio data length */
+  MAD_ERROR_BADHUFFTABLE   = 0x0237,	/* bad Huffman table select */
+  MAD_ERROR_BADHUFFDATA	   = 0x0238,	/* Huffman data overrun */
+  MAD_ERROR_BADSTEREO	   = 0x0239	/* incompatible block_type for JS */
+};
+
+# define MAD_RECOVERABLE(error)	((error) & 0xff00)
+
+struct mad_stream {
+  unsigned char const *buffer;		/* input bitstream buffer */
+  unsigned char const *bufend;		/* end of buffer */
+  unsigned long skiplen;		/* bytes to skip before next frame */
+
+  int sync;				/* stream sync found */
+  unsigned long freerate;		/* free bitrate (fixed) */
+
+  unsigned char const *this_frame;	/* start of current frame */
+  unsigned char const *next_frame;	/* start of next frame */
+  struct mad_bitptr ptr;		/* current processing bit pointer */
+
+  struct mad_bitptr anc_ptr;		/* ancillary bits pointer */
+  unsigned int anc_bitlen;		/* number of ancillary bits */
+
+  unsigned char (*main_data)[MAD_BUFFER_MDLEN];
+					/* Layer III main_data() */
+  unsigned int md_len;			/* bytes in main_data */
+
+  int options;				/* decoding options (see below) */
+  enum mad_error error;			/* error code (see above) */
+};
+
+enum {
+  MAD_OPTION_IGNORECRC      = 0x0001,	/* ignore CRC errors */
+  MAD_OPTION_HALFSAMPLERATE = 0x0002	/* generate PCM at 1/2 sample rate */
+# if 0  /* not yet implemented */
+  MAD_OPTION_LEFTCHANNEL    = 0x0010,	/* decode left channel only */
+  MAD_OPTION_RIGHTCHANNEL   = 0x0020,	/* decode right channel only */
+  MAD_OPTION_SINGLECHANNEL  = 0x0030	/* combine channels */
+# endif
+};
+
+void mad_stream_init(struct mad_stream *);
+void mad_stream_finish(struct mad_stream *);
+
+# define mad_stream_options(stream, opts)  \
+    ((void) ((stream)->options = (opts)))
+
+void mad_stream_buffer(struct mad_stream *,
+		       unsigned char const *, unsigned long);
+void mad_stream_skip(struct mad_stream *, unsigned long);
+
+int mad_stream_sync(struct mad_stream *);
+
+char const *mad_stream_errorstr(struct mad_stream const *);
+
+# endif
+
+/* Id: frame.h,v 1.19 2003/05/27 22:40:36 rob Exp */
+
+# ifndef LIBMAD_FRAME_H
+# define LIBMAD_FRAME_H
+
+
+enum mad_layer {
+  MAD_LAYER_I   = 1,			/* Layer I */
+  MAD_LAYER_II  = 2,			/* Layer II */
+  MAD_LAYER_III = 3			/* Layer III */
+};
+
+enum mad_mode {
+  MAD_MODE_SINGLE_CHANNEL = 0,		/* single channel */
+  MAD_MODE_DUAL_CHANNEL	  = 1,		/* dual channel */
+  MAD_MODE_JOINT_STEREO	  = 2,		/* joint (MS/intensity) stereo */
+  MAD_MODE_STEREO	  = 3		/* normal LR stereo */
+};
+
+enum mad_emphasis {
+  MAD_EMPHASIS_NONE	  = 0,		/* no emphasis */
+  MAD_EMPHASIS_50_15_US	  = 1,		/* 50/15 microseconds emphasis */
+  MAD_EMPHASIS_CCITT_J_17 = 3,		/* CCITT J.17 emphasis */
+  MAD_EMPHASIS_RESERVED   = 2		/* unknown emphasis */
+};
+
+struct mad_header {
+  enum mad_layer layer;			/* audio layer (1, 2, or 3) */
+  enum mad_mode mode;			/* channel mode (see above) */
+  int mode_extension;			/* additional mode info */
+  enum mad_emphasis emphasis;		/* de-emphasis to use (see above) */
+
+  unsigned long bitrate;		/* stream bitrate (bps) */
+  unsigned int samplerate;		/* sampling frequency (Hz) */
+
+  unsigned short crc_check;		/* frame CRC accumulator */
+  unsigned short crc_target;		/* final target CRC checksum */
+
+  int flags;				/* flags (see below) */
+  int private_bits;			/* private bits (see below) */
+
+  mad_timer_t duration;			/* audio playing time of frame */
+};
+
+struct mad_frame {
+  struct mad_header header;		/* MPEG audio header */
+
+  int options;				/* decoding options (from stream) */
+
+  mad_fixed_t sbsample[2][36][32];	/* synthesis subband filter samples */
+  mad_fixed_t (*overlap)[2][32][18];	/* Layer III block overlap data */
+};
+
+# define MAD_NCHANNELS(header)		((header)->mode ? 2 : 1)
+# define MAD_NSBSAMPLES(header)  \
+  ((header)->layer == MAD_LAYER_I ? 12 :  \
+   (((header)->layer == MAD_LAYER_III &&  \
+     ((header)->flags & MAD_FLAG_LSF_EXT)) ? 18 : 36))
+
+enum {
+  MAD_FLAG_NPRIVATE_III	= 0x0007,	/* number of Layer III private bits */
+  MAD_FLAG_INCOMPLETE	= 0x0008,	/* header but not data is decoded */
+
+  MAD_FLAG_PROTECTION	= 0x0010,	/* frame has CRC protection */
+  MAD_FLAG_COPYRIGHT	= 0x0020,	/* frame is copyright */
+  MAD_FLAG_ORIGINAL	= 0x0040,	/* frame is original (else copy) */
+  MAD_FLAG_PADDING	= 0x0080,	/* frame has additional slot */
+
+  MAD_FLAG_I_STEREO	= 0x0100,	/* uses intensity joint stereo */
+  MAD_FLAG_MS_STEREO	= 0x0200,	/* uses middle/side joint stereo */
+  MAD_FLAG_FREEFORMAT	= 0x0400,	/* uses free format bitrate */
+
+  MAD_FLAG_LSF_EXT	= 0x1000,	/* lower sampling freq. extension */
+  MAD_FLAG_MC_EXT	= 0x2000,	/* multichannel audio extension */
+  MAD_FLAG_MPEG_2_5_EXT	= 0x4000	/* MPEG 2.5 (unofficial) extension */
+};
+
+enum {
+  MAD_PRIVATE_HEADER	= 0x0100,	/* header private bit */
+  MAD_PRIVATE_III	= 0x001f	/* Layer III private bits (up to 5) */
+};
+
+void mad_header_init(struct mad_header *);
+
+# define mad_header_finish(header)  /* nothing */
+
+int mad_header_decode(struct mad_header *, struct mad_stream *);
+
+void mad_frame_init(struct mad_frame *);
+void mad_frame_finish(struct mad_frame *);
+
+int mad_frame_decode(struct mad_frame *, struct mad_stream *);
+
+void mad_frame_mute(struct mad_frame *);
+
+# endif
+
+/* Id: synth.h,v 1.14 2003/05/27 22:40:37 rob Exp */
+
+# ifndef LIBMAD_SYNTH_H
+# define LIBMAD_SYNTH_H
+
+
+struct mad_pcm {
+  unsigned int samplerate;		/* sampling frequency (Hz) */
+  unsigned short channels;		/* number of channels */
+  unsigned short length;		/* number of samples per channel */
+  mad_fixed_t samples[2][1152];		/* PCM output samples [ch][sample] */
+};
+
+struct mad_synth {
+  mad_fixed_t filter[2][2][2][16][8];	/* polyphase filterbank outputs */
+  					/* [ch][eo][peo][s][v] */
+
+  unsigned int phase;			/* current processing phase */
+
+  struct mad_pcm pcm;			/* PCM output */
+};
+
+/* single channel PCM selector */
+enum {
+  MAD_PCM_CHANNEL_SINGLE = 0
+};
+
+/* dual channel PCM selector */
+enum {
+  MAD_PCM_CHANNEL_DUAL_1 = 0,
+  MAD_PCM_CHANNEL_DUAL_2 = 1
+};
+
+/* stereo PCM selector */
+enum {
+  MAD_PCM_CHANNEL_STEREO_LEFT  = 0,
+  MAD_PCM_CHANNEL_STEREO_RIGHT = 1
+};
+
+void mad_synth_init(struct mad_synth *);
+
+# define mad_synth_finish(synth)  /* nothing */
+
+void mad_synth_mute(struct mad_synth *);
+
+void mad_synth_frame(struct mad_synth *, struct mad_frame const *);
+
+# endif
+
+/* Id: decoder.h,v 1.16 2003/05/27 22:40:36 rob Exp */
+
+# ifndef LIBMAD_DECODER_H
+# define LIBMAD_DECODER_H
+
+
+enum mad_decoder_mode {
+  MAD_DECODER_MODE_SYNC  = 0,
+  MAD_DECODER_MODE_ASYNC
+};
+
+enum mad_flow {
+  MAD_FLOW_CONTINUE = 0x0000,	/* continue normally */
+  MAD_FLOW_STOP     = 0x0010,	/* stop decoding normally */
+  MAD_FLOW_BREAK    = 0x0011,	/* stop decoding and signal an error */
+  MAD_FLOW_IGNORE   = 0x0020	/* ignore the current frame */
+};
+
+struct mad_decoder {
+  enum mad_decoder_mode mode;
+
+  int options;
+
+  struct {
+    long pid;
+    int in;
+    int out;
+  } async;
+
+  struct {
+    struct mad_stream stream;
+    struct mad_frame frame;
+    struct mad_synth synth;
+  } *sync;
+
+  void *cb_data;
+
+  enum mad_flow (*input_func)(void *, struct mad_stream *);
+  enum mad_flow (*header_func)(void *, struct mad_header const *);
+  enum mad_flow (*filter_func)(void *,
+			       struct mad_stream const *, struct mad_frame *);
+  enum mad_flow (*output_func)(void *,
+			       struct mad_header const *, struct mad_pcm *);
+  enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);
+  enum mad_flow (*message_func)(void *, void *, unsigned int *);
+};
+
+void mad_decoder_init(struct mad_decoder *, void *,
+		      enum mad_flow (*)(void *, struct mad_stream *),
+		      enum mad_flow (*)(void *, struct mad_header const *),
+		      enum mad_flow (*)(void *,
+					struct mad_stream const *,
+					struct mad_frame *),
+		      enum mad_flow (*)(void *,
+					struct mad_header const *,
+					struct mad_pcm *),
+		      enum mad_flow (*)(void *,
+					struct mad_stream *,
+					struct mad_frame *),
+		      enum mad_flow (*)(void *, void *, unsigned int *));
+int mad_decoder_finish(struct mad_decoder *);
+
+# define mad_decoder_options(decoder, opts)  \
+    ((void) ((decoder)->options = (opts)))
+
+int mad_decoder_run(struct mad_decoder *, enum mad_decoder_mode);
+int mad_decoder_message(struct mad_decoder *, void *, unsigned int *);
+
+# endif
+
+# ifdef __cplusplus
+}
+# endif

lib/libmad/qc_table.dat

@@ -0,0 +1,77 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: qc_table.dat,v 1.7 2004/01/23 09:41:32 rob Exp $
+ */
+
+/*
+ * These are the Layer II classes of quantization.
+ * The table is derived from Table B.4 of ISO/IEC 11172-3.
+ */
+
+  {     3, 2,  5,
+    MAD_F(0x15555555) /* 1.33333333333 => 1.33333333209, e  0.00000000124 */,
+    MAD_F(0x08000000) /* 0.50000000000 => 0.50000000000, e  0.00000000000 */ },
+  {     5, 3,  7,
+    MAD_F(0x1999999a) /* 1.60000000000 => 1.60000000149, e -0.00000000149 */,
+    MAD_F(0x08000000) /* 0.50000000000 => 0.50000000000, e  0.00000000000 */ },
+  {     7, 0,  3,
+    MAD_F(0x12492492) /* 1.14285714286 => 1.14285714179, e  0.00000000107 */,
+    MAD_F(0x04000000) /* 0.25000000000 => 0.25000000000, e  0.00000000000 */ },
+  {     9, 4, 10,
+    MAD_F(0x1c71c71c) /* 1.77777777777 => 1.77777777612, e  0.00000000165 */,
+    MAD_F(0x08000000) /* 0.50000000000 => 0.50000000000, e  0.00000000000 */ },
+  {    15, 0,  4,
+    MAD_F(0x11111111) /* 1.06666666666 => 1.06666666642, e  0.00000000024 */,
+    MAD_F(0x02000000) /* 0.12500000000 => 0.12500000000, e  0.00000000000 */ },
+  {    31, 0,  5,
+    MAD_F(0x10842108) /* 1.03225806452 => 1.03225806355, e  0.00000000097 */,
+    MAD_F(0x01000000) /* 0.06250000000 => 0.06250000000, e  0.00000000000 */ },
+  {    63, 0,  6,
+    MAD_F(0x10410410) /* 1.01587301587 => 1.01587301493, e  0.00000000094 */,
+    MAD_F(0x00800000) /* 0.03125000000 => 0.03125000000, e  0.00000000000 */ },
+  {   127, 0,  7,
+    MAD_F(0x10204081) /* 1.00787401575 => 1.00787401572, e  0.00000000003 */,
+    MAD_F(0x00400000) /* 0.01562500000 => 0.01562500000, e  0.00000000000 */ },
+  {   255, 0,  8,
+    MAD_F(0x10101010) /* 1.00392156863 => 1.00392156839, e  0.00000000024 */,
+    MAD_F(0x00200000) /* 0.00781250000 => 0.00781250000, e  0.00000000000 */ },
+  {   511, 0,  9,
+    MAD_F(0x10080402) /* 1.00195694716 => 1.00195694715, e  0.00000000001 */,
+    MAD_F(0x00100000) /* 0.00390625000 => 0.00390625000, e  0.00000000000 */ },
+  {  1023, 0, 10,
+    MAD_F(0x10040100) /* 1.00097751711 => 1.00097751617, e  0.00000000094 */,
+    MAD_F(0x00080000) /* 0.00195312500 => 0.00195312500, e  0.00000000000 */ },
+  {  2047, 0, 11,
+    MAD_F(0x10020040) /* 1.00048851979 => 1.00048851967, e  0.00000000012 */,
+    MAD_F(0x00040000) /* 0.00097656250 => 0.00097656250, e  0.00000000000 */ },
+  {  4095, 0, 12,
+    MAD_F(0x10010010) /* 1.00024420024 => 1.00024420023, e  0.00000000001 */,
+    MAD_F(0x00020000) /* 0.00048828125 => 0.00048828125, e  0.00000000000 */ },
+  {  8191, 0, 13,
+    MAD_F(0x10008004) /* 1.00012208522 => 1.00012208521, e  0.00000000001 */,
+    MAD_F(0x00010000) /* 0.00024414063 => 0.00024414062, e  0.00000000000 */ },
+  { 16383, 0, 14,
+    MAD_F(0x10004001) /* 1.00006103888 => 1.00006103888, e -0.00000000000 */,
+    MAD_F(0x00008000) /* 0.00012207031 => 0.00012207031, e -0.00000000000 */ },
+  { 32767, 0, 15,
+    MAD_F(0x10002000) /* 1.00003051851 => 1.00003051758, e  0.00000000093 */,
+    MAD_F(0x00004000) /* 0.00006103516 => 0.00006103516, e  0.00000000000 */ },
+  { 65535, 0, 16,
+    MAD_F(0x10001000) /* 1.00001525902 => 1.00001525879, e  0.00000000023 */,
+    MAD_F(0x00002000) /* 0.00003051758 => 0.00003051758, e  0.00000000000 */ }

lib/libmad/sf_table.dat

@@ -0,0 +1,106 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: sf_table.dat,v 1.7 2004/01/23 09:41:33 rob Exp $
+ */
+
+/*
+ * These are the scalefactor values for Layer I and Layer II.
+ * The values are from Table B.1 of ISO/IEC 11172-3.
+ *
+ * There is some error introduced by the 32-bit fixed-point representation;
+ * the amount of error is shown. For 16-bit PCM output, this shouldn't be
+ * too much of a problem.
+ *
+ * Strictly speaking, Table B.1 has only 63 entries (0-62), thus a strict
+ * interpretation of ISO/IEC 11172-3 would suggest that a scalefactor index of
+ * 63 is invalid. However, for better compatibility with current practices, we
+ * add a 64th entry.
+ */
+
+  MAD_F(0x20000000),  /* 2.000000000000 => 2.000000000000, e  0.000000000000 */
+  MAD_F(0x1965fea5),  /* 1.587401051968 => 1.587401051074, e  0.000000000894 */
+  MAD_F(0x1428a2fa),  /* 1.259921049895 => 1.259921051562, e -0.000000001667 */
+  MAD_F(0x10000000),  /* 1.000000000000 => 1.000000000000, e  0.000000000000 */
+  MAD_F(0x0cb2ff53),  /* 0.793700525984 => 0.793700527400, e -0.000000001416 */
+  MAD_F(0x0a14517d),  /* 0.629960524947 => 0.629960525781, e -0.000000000833 */
+  MAD_F(0x08000000),  /* 0.500000000000 => 0.500000000000, e  0.000000000000 */
+  MAD_F(0x06597fa9),  /* 0.396850262992 => 0.396850261837, e  0.000000001155 */
+
+  MAD_F(0x050a28be),  /* 0.314980262474 => 0.314980261028, e  0.000000001446 */
+  MAD_F(0x04000000),  /* 0.250000000000 => 0.250000000000, e  0.000000000000 */
+  MAD_F(0x032cbfd5),  /* 0.198425131496 => 0.198425132781, e -0.000000001285 */
+  MAD_F(0x0285145f),  /* 0.157490131237 => 0.157490130514, e  0.000000000723 */
+  MAD_F(0x02000000),  /* 0.125000000000 => 0.125000000000, e  0.000000000000 */
+  MAD_F(0x01965fea),  /* 0.099212565748 => 0.099212564528, e  0.000000001220 */
+  MAD_F(0x01428a30),  /* 0.078745065618 => 0.078745067120, e -0.000000001501 */
+  MAD_F(0x01000000),  /* 0.062500000000 => 0.062500000000, e  0.000000000000 */
+
+  MAD_F(0x00cb2ff5),  /* 0.049606282874 => 0.049606282264, e  0.000000000610 */
+  MAD_F(0x00a14518),  /* 0.039372532809 => 0.039372533560, e -0.000000000751 */
+  MAD_F(0x00800000),  /* 0.031250000000 => 0.031250000000, e  0.000000000000 */
+  MAD_F(0x006597fb),  /* 0.024803141437 => 0.024803142995, e -0.000000001558 */
+  MAD_F(0x0050a28c),  /* 0.019686266405 => 0.019686266780, e -0.000000000375 */
+  MAD_F(0x00400000),  /* 0.015625000000 => 0.015625000000, e  0.000000000000 */
+  MAD_F(0x0032cbfd),  /* 0.012401570719 => 0.012401569635, e  0.000000001084 */
+  MAD_F(0x00285146),  /* 0.009843133202 => 0.009843133390, e -0.000000000188 */
+
+  MAD_F(0x00200000),  /* 0.007812500000 => 0.007812500000, e  0.000000000000 */
+  MAD_F(0x001965ff),  /* 0.006200785359 => 0.006200786680, e -0.000000001321 */
+  MAD_F(0x001428a3),  /* 0.004921566601 => 0.004921566695, e -0.000000000094 */
+  MAD_F(0x00100000),  /* 0.003906250000 => 0.003906250000, e  0.000000000000 */
+  MAD_F(0x000cb2ff),  /* 0.003100392680 => 0.003100391477, e  0.000000001202 */
+  MAD_F(0x000a1451),  /* 0.002460783301 => 0.002460781485, e  0.000000001816 */
+  MAD_F(0x00080000),  /* 0.001953125000 => 0.001953125000, e  0.000000000000 */
+  MAD_F(0x00065980),  /* 0.001550196340 => 0.001550197601, e -0.000000001262 */
+
+  MAD_F(0x00050a29),  /* 0.001230391650 => 0.001230392605, e -0.000000000955 */
+  MAD_F(0x00040000),  /* 0.000976562500 => 0.000976562500, e  0.000000000000 */
+  MAD_F(0x00032cc0),  /* 0.000775098170 => 0.000775098801, e -0.000000000631 */
+  MAD_F(0x00028514),  /* 0.000615195825 => 0.000615194440, e  0.000000001385 */
+  MAD_F(0x00020000),  /* 0.000488281250 => 0.000488281250, e  0.000000000000 */
+  MAD_F(0x00019660),  /* 0.000387549085 => 0.000387549400, e -0.000000000315 */
+  MAD_F(0x0001428a),  /* 0.000307597913 => 0.000307597220, e  0.000000000693 */
+  MAD_F(0x00010000),  /* 0.000244140625 => 0.000244140625, e  0.000000000000 */
+
+  MAD_F(0x0000cb30),  /* 0.000193774542 => 0.000193774700, e -0.000000000158 */
+  MAD_F(0x0000a145),  /* 0.000153798956 => 0.000153798610, e  0.000000000346 */
+  MAD_F(0x00008000),  /* 0.000122070313 => 0.000122070313, e  0.000000000000 */
+  MAD_F(0x00006598),  /* 0.000096887271 => 0.000096887350, e -0.000000000079 */
+  MAD_F(0x000050a3),  /* 0.000076899478 => 0.000076901168, e -0.000000001689 */
+  MAD_F(0x00004000),  /* 0.000061035156 => 0.000061035156, e  0.000000000000 */
+  MAD_F(0x000032cc),  /* 0.000048443636 => 0.000048443675, e -0.000000000039 */
+  MAD_F(0x00002851),  /* 0.000038449739 => 0.000038448721, e  0.000000001018 */
+
+  MAD_F(0x00002000),  /* 0.000030517578 => 0.000030517578, e  0.000000000000 */
+  MAD_F(0x00001966),  /* 0.000024221818 => 0.000024221838, e -0.000000000020 */
+  MAD_F(0x00001429),  /* 0.000019224870 => 0.000019226223, e -0.000000001354 */
+  MAD_F(0x00001000),  /* 0.000015258789 => 0.000015258789, e -0.000000000000 */
+  MAD_F(0x00000cb3),  /* 0.000012110909 => 0.000012110919, e -0.000000000010 */
+  MAD_F(0x00000a14),  /* 0.000009612435 => 0.000009611249, e  0.000000001186 */
+  MAD_F(0x00000800),  /* 0.000007629395 => 0.000007629395, e -0.000000000000 */
+  MAD_F(0x00000659),  /* 0.000006055454 => 0.000006053597, e  0.000000001858 */
+
+  MAD_F(0x0000050a),  /* 0.000004806217 => 0.000004805624, e  0.000000000593 */
+  MAD_F(0x00000400),  /* 0.000003814697 => 0.000003814697, e  0.000000000000 */
+  MAD_F(0x0000032d),  /* 0.000003027727 => 0.000003028661, e -0.000000000934 */
+  MAD_F(0x00000285),  /* 0.000002403109 => 0.000002402812, e  0.000000000296 */
+  MAD_F(0x00000200),  /* 0.000001907349 => 0.000001907349, e -0.000000000000 */
+  MAD_F(0x00000196),  /* 0.000001513864 => 0.000001512468, e  0.000000001396 */
+  MAD_F(0x00000143),  /* 0.000001201554 => 0.000001203269, e -0.000000001714 */
+  MAD_F(0x00000000)   /* this compatibility entry is not part of Table B.1 */

lib/libmad/stream.c

@@ -0,0 +1,161 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: stream.c,v 1.12 2004/02/05 09:02:39 rob Exp $
+ */
+
+# ifdef HAVE_CONFIG_H
+#  include "config.h"
+# endif
+
+# include "global.h"
+
+# include <stdlib.h>
+
+# include "bit.h"
+# include "stream.h"
+
+/*
+ * NAME:	stream->init()
+ * DESCRIPTION:	initialize stream struct
+ */
+void mad_stream_init(struct mad_stream *stream)
+{
+  stream->buffer     = 0;
+  stream->bufend     = 0;
+  stream->skiplen    = 0;
+
+  stream->sync       = 0;
+  stream->freerate   = 0;
+
+  stream->this_frame = 0;
+  stream->next_frame = 0;
+  mad_bit_init(&stream->ptr, 0);
+
+  mad_bit_init(&stream->anc_ptr, 0);
+  stream->anc_bitlen = 0;
+
+  stream->main_data  = 0;
+  stream->md_len     = 0;
+
+  stream->options    = 0;
+  stream->error      = MAD_ERROR_NONE;
+}
+
+/*
+ * NAME:	stream->finish()
+ * DESCRIPTION:	deallocate any dynamic memory associated with stream
+ */
+void mad_stream_finish(struct mad_stream *stream)
+{
+  if (stream->main_data) {
+    free(stream->main_data);
+    stream->main_data = 0;
+  }
+
+  mad_bit_finish(&stream->anc_ptr);
+  mad_bit_finish(&stream->ptr);
+}
+
+/*
+ * NAME:	stream->buffer()
+ * DESCRIPTION:	set stream buffer pointers
+ */
+void mad_stream_buffer(struct mad_stream *stream,
+		       unsigned char const *buffer, unsigned long length)
+{
+  stream->buffer = buffer;
+  stream->bufend = buffer + length;
+
+  stream->this_frame = buffer;
+  stream->next_frame = buffer;
+
+  stream->sync = 1;
+
+  mad_bit_init(&stream->ptr, buffer);
+}
+
+/*
+ * NAME:	stream->skip()
+ * DESCRIPTION:	arrange to skip bytes before the next frame
+ */
+void mad_stream_skip(struct mad_stream *stream, unsigned long length)
+{
+  stream->skiplen += length;
+}
+
+/*
+ * NAME:	stream->sync()
+ * DESCRIPTION:	locate the next stream sync word
+ */
+int mad_stream_sync(struct mad_stream *stream)
+{
+  register unsigned char const *ptr, *end;
+
+  ptr = mad_bit_nextbyte(&stream->ptr);
+  end = stream->bufend;
+
+  while (ptr < end - 1 &&
+	 !(ptr[0] == 0xff && (ptr[1] & 0xe0) == 0xe0))
+    ++ptr;
+
+  if (end - ptr < MAD_BUFFER_GUARD)
+    return -1;
+
+  mad_bit_init(&stream->ptr, ptr);
+
+  return 0;
+}
+
+/*
+ * NAME:	stream->errorstr()
+ * DESCRIPTION:	return a string description of the current error condition
+ */
+char const *mad_stream_errorstr(struct mad_stream const *stream)
+{
+  switch (stream->error) {
+  case MAD_ERROR_NONE:		 return "no error";
+
+  case MAD_ERROR_BUFLEN:	 return "input buffer too small (or EOF)";
+  case MAD_ERROR_BUFPTR:	 return "invalid (null) buffer pointer";
+
+  case MAD_ERROR_NOMEM:		 return "not enough memory";
+
+  case MAD_ERROR_LOSTSYNC:	 return "lost synchronization";
+  case MAD_ERROR_BADLAYER:	 return "reserved header layer value";
+  case MAD_ERROR_BADBITRATE:	 return "forbidden bitrate value";
+  case MAD_ERROR_BADSAMPLERATE:	 return "reserved sample frequency value";
+  case MAD_ERROR_BADEMPHASIS:	 return "reserved emphasis value";
+
+  case MAD_ERROR_BADCRC:	 return "CRC check failed";
+  case MAD_ERROR_BADBITALLOC:	 return "forbidden bit allocation value";
+  case MAD_ERROR_BADSCALEFACTOR: return "bad scalefactor index";
+  case MAD_ERROR_BADMODE:	 return "bad bitrate/mode combination";
+  case MAD_ERROR_BADFRAMELEN:	 return "bad frame length";
+  case MAD_ERROR_BADBIGVALUES:	 return "bad big_values count";
+  case MAD_ERROR_BADBLOCKTYPE:	 return "reserved block_type";
+  case MAD_ERROR_BADSCFSI:	 return "bad scalefactor selection info";
+  case MAD_ERROR_BADDATAPTR:	 return "bad main_data_begin pointer";
+  case MAD_ERROR_BADPART3LEN:	 return "bad audio data length";
+  case MAD_ERROR_BADHUFFTABLE:	 return "bad Huffman table select";
+  case MAD_ERROR_BADHUFFDATA:	 return "Huffman data overrun";
+  case MAD_ERROR_BADSTEREO:	 return "incompatible block_type for JS";
+  }
+
+  return 0;
+}

lib/libmad/stream.h

@@ -0,0 +1,108 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: stream.h,v 1.20 2004/02/05 09:02:39 rob Exp $
+ */
+
+# ifndef LIBMAD_STREAM_H
+# define LIBMAD_STREAM_H
+
+# include "bit.h"
+
+# define MAD_BUFFER_GUARD	8
+# define MAD_BUFFER_MDLEN	(511 + 2048 + MAD_BUFFER_GUARD)
+
+enum mad_error {
+  MAD_ERROR_NONE	   = 0x0000,	/* no error */
+
+  MAD_ERROR_BUFLEN	   = 0x0001,	/* input buffer too small (or EOF) */
+  MAD_ERROR_BUFPTR	   = 0x0002,	/* invalid (null) buffer pointer */
+
+  MAD_ERROR_NOMEM	   = 0x0031,	/* not enough memory */
+
+  MAD_ERROR_LOSTSYNC	   = 0x0101,	/* lost synchronization */
+  MAD_ERROR_BADLAYER	   = 0x0102,	/* reserved header layer value */
+  MAD_ERROR_BADBITRATE	   = 0x0103,	/* forbidden bitrate value */
+  MAD_ERROR_BADSAMPLERATE  = 0x0104,	/* reserved sample frequency value */
+  MAD_ERROR_BADEMPHASIS	   = 0x0105,	/* reserved emphasis value */
+
+  MAD_ERROR_BADCRC	   = 0x0201,	/* CRC check failed */
+  MAD_ERROR_BADBITALLOC	   = 0x0211,	/* forbidden bit allocation value */
+  MAD_ERROR_BADSCALEFACTOR = 0x0221,	/* bad scalefactor index */
+  MAD_ERROR_BADMODE        = 0x0222,	/* bad bitrate/mode combination */
+  MAD_ERROR_BADFRAMELEN	   = 0x0231,	/* bad frame length */
+  MAD_ERROR_BADBIGVALUES   = 0x0232,	/* bad big_values count */
+  MAD_ERROR_BADBLOCKTYPE   = 0x0233,	/* reserved block_type */
+  MAD_ERROR_BADSCFSI	   = 0x0234,	/* bad scalefactor selection info */
+  MAD_ERROR_BADDATAPTR	   = 0x0235,	/* bad main_data_begin pointer */
+  MAD_ERROR_BADPART3LEN	   = 0x0236,	/* bad audio data length */
+  MAD_ERROR_BADHUFFTABLE   = 0x0237,	/* bad Huffman table select */
+  MAD_ERROR_BADHUFFDATA	   = 0x0238,	/* Huffman data overrun */
+  MAD_ERROR_BADSTEREO	   = 0x0239	/* incompatible block_type for JS */
+};
+
+# define MAD_RECOVERABLE(error)	((error) & 0xff00)
+
+struct mad_stream {
+  unsigned char const *buffer;		/* input bitstream buffer */
+  unsigned char const *bufend;		/* end of buffer */
+  unsigned long skiplen;		/* bytes to skip before next frame */
+
+  int sync;				/* stream sync found */
+  unsigned long freerate;		/* free bitrate (fixed) */
+
+  unsigned char const *this_frame;	/* start of current frame */
+  unsigned char const *next_frame;	/* start of next frame */
+  struct mad_bitptr ptr;		/* current processing bit pointer */
+
+  struct mad_bitptr anc_ptr;		/* ancillary bits pointer */
+  unsigned int anc_bitlen;		/* number of ancillary bits */
+
+  unsigned char (*main_data)[MAD_BUFFER_MDLEN];
+					/* Layer III main_data() */
+  unsigned int md_len;			/* bytes in main_data */
+
+  int options;				/* decoding options (see below) */
+  enum mad_error error;			/* error code (see above) */
+};
+
+enum {
+  MAD_OPTION_IGNORECRC      = 0x0001,	/* ignore CRC errors */
+  MAD_OPTION_HALFSAMPLERATE = 0x0002	/* generate PCM at 1/2 sample rate */
+# if 0  /* not yet implemented */
+  MAD_OPTION_LEFTCHANNEL    = 0x0010,	/* decode left channel only */
+  MAD_OPTION_RIGHTCHANNEL   = 0x0020,	/* decode right channel only */
+  MAD_OPTION_SINGLECHANNEL  = 0x0030	/* combine channels */
+# endif
+};
+
+void mad_stream_init(struct mad_stream *);
+void mad_stream_finish(struct mad_stream *);
+
+# define mad_stream_options(stream, opts)  \
+    ((void) ((stream)->options = (opts)))
+
+void mad_stream_buffer(struct mad_stream *,
+		       unsigned char const *, unsigned long);
+void mad_stream_skip(struct mad_stream *, unsigned long);
+
+int mad_stream_sync(struct mad_stream *);
+
+char const *mad_stream_errorstr(struct mad_stream const *);
+
+# endif

lib/libmad/synth.c

@@ -0,0 +1,857 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: synth.c,v 1.25 2004/01/23 09:41:33 rob Exp $
+ */
+
+# ifdef HAVE_CONFIG_H
+#  include "config.h"
+# endif
+
+# include "global.h"
+
+# include "fixed.h"
+# include "frame.h"
+# include "synth.h"
+
+/*
+ * NAME:	synth->init()
+ * DESCRIPTION:	initialize synth struct
+ */
+void mad_synth_init(struct mad_synth *synth)
+{
+  mad_synth_mute(synth);
+
+  synth->phase = 0;
+
+  synth->pcm.samplerate = 0;
+  synth->pcm.channels   = 0;
+  synth->pcm.length     = 0;
+}
+
+/*
+ * NAME:	synth->mute()
+ * DESCRIPTION:	zero all polyphase filterbank values, resetting synthesis
+ */
+void mad_synth_mute(struct mad_synth *synth)
+{
+  unsigned int ch, s, v;
+
+  for (ch = 0; ch < 2; ++ch) {
+    for (s = 0; s < 16; ++s) {
+      for (v = 0; v < 8; ++v) {
+	synth->filter[ch][0][0][s][v] = synth->filter[ch][0][1][s][v] =
+	synth->filter[ch][1][0][s][v] = synth->filter[ch][1][1][s][v] = 0;
+      }
+    }
+  }
+}
+
+/*
+ * An optional optimization called here the Subband Synthesis Optimization
+ * (SSO) improves the performance of subband synthesis at the expense of
+ * accuracy.
+ *
+ * The idea is to simplify 32x32->64-bit multiplication to 32x32->32 such
+ * that extra scaling and rounding are not necessary. This often allows the
+ * compiler to use faster 32-bit multiply-accumulate instructions instead of
+ * explicit 64-bit multiply, shift, and add instructions.
+ *
+ * SSO works like this: a full 32x32->64-bit multiply of two mad_fixed_t
+ * values requires the result to be right-shifted 28 bits to be properly
+ * scaled to the same fixed-point format. Right shifts can be applied at any
+ * time to either operand or to the result, so the optimization involves
+ * careful placement of these shifts to minimize the loss of accuracy.
+ *
+ * First, a 14-bit shift is applied with rounding at compile-time to the D[]
+ * table of coefficients for the subband synthesis window. This only loses 2
+ * bits of accuracy because the lower 12 bits are always zero. A second
+ * 12-bit shift occurs after the DCT calculation. This loses 12 bits of
+ * accuracy. Finally, a third 2-bit shift occurs just before the sample is
+ * saved in the PCM buffer. 14 + 12 + 2 == 28 bits.
+ */
+
+/* FPM_DEFAULT without OPT_SSO will actually lose accuracy and performance */
+
+# if defined(FPM_DEFAULT) && !defined(OPT_SSO)
+#  define OPT_SSO
+# endif
+
+/* second SSO shift, with rounding */
+
+# if defined(OPT_SSO)
+#  define SHIFT(x)  (((x) + (1L << 11)) >> 12)
+# else
+#  define SHIFT(x)  (x)
+# endif
+
+/* possible DCT speed optimization */
+
+# if defined(OPT_SPEED) && defined(MAD_F_MLX)
+#  define OPT_DCTO
+#  define MUL(x, y)  \
+    ({ mad_fixed64hi_t hi;  \
+       mad_fixed64lo_t lo;  \
+       MAD_F_MLX(hi, lo, (x), (y));  \
+       hi << (32 - MAD_F_SCALEBITS - 3);  \
+    })
+# else
+#  undef OPT_DCTO
+#  define MUL(x, y)  mad_f_mul((x), (y))
+# endif
+
+/*
+ * NAME:	dct32()
+ * DESCRIPTION:	perform fast in[32]->out[32] DCT
+ */
+static
+void dct32(mad_fixed_t const in[32], unsigned int slot,
+	   mad_fixed_t lo[16][8], mad_fixed_t hi[16][8])
+{
+  mad_fixed_t t0,   t1,   t2,   t3,   t4,   t5,   t6,   t7;
+  mad_fixed_t t8,   t9,   t10,  t11,  t12,  t13,  t14,  t15;
+  mad_fixed_t t16,  t17,  t18,  t19,  t20,  t21,  t22,  t23;
+  mad_fixed_t t24,  t25,  t26,  t27,  t28,  t29,  t30,  t31;
+  mad_fixed_t t32,  t33,  t34,  t35,  t36,  t37,  t38,  t39;
+  mad_fixed_t t40,  t41,  t42,  t43,  t44,  t45,  t46,  t47;
+  mad_fixed_t t48,  t49,  t50,  t51,  t52,  t53,  t54,  t55;
+  mad_fixed_t t56,  t57,  t58,  t59,  t60,  t61,  t62,  t63;
+  mad_fixed_t t64,  t65,  t66,  t67,  t68,  t69,  t70,  t71;
+  mad_fixed_t t72,  t73,  t74,  t75,  t76,  t77,  t78,  t79;
+  mad_fixed_t t80,  t81,  t82,  t83,  t84,  t85,  t86,  t87;
+  mad_fixed_t t88,  t89,  t90,  t91,  t92,  t93,  t94,  t95;
+  mad_fixed_t t96,  t97,  t98,  t99,  t100, t101, t102, t103;
+  mad_fixed_t t104, t105, t106, t107, t108, t109, t110, t111;
+  mad_fixed_t t112, t113, t114, t115, t116, t117, t118, t119;
+  mad_fixed_t t120, t121, t122, t123, t124, t125, t126, t127;
+  mad_fixed_t t128, t129, t130, t131, t132, t133, t134, t135;
+  mad_fixed_t t136, t137, t138, t139, t140, t141, t142, t143;
+  mad_fixed_t t144, t145, t146, t147, t148, t149, t150, t151;
+  mad_fixed_t t152, t153, t154, t155, t156, t157, t158, t159;
+  mad_fixed_t t160, t161, t162, t163, t164, t165, t166, t167;
+  mad_fixed_t t168, t169, t170, t171, t172, t173, t174, t175;
+  mad_fixed_t t176;
+
+  /* costab[i] = cos(PI / (2 * 32) * i) */
+
+# if defined(OPT_DCTO)
+#  define costab1	MAD_F(0x7fd8878e)
+#  define costab2	MAD_F(0x7f62368f)
+#  define costab3	MAD_F(0x7e9d55fc)
+#  define costab4	MAD_F(0x7d8a5f40)
+#  define costab5	MAD_F(0x7c29fbee)
+#  define costab6	MAD_F(0x7a7d055b)
+#  define costab7	MAD_F(0x78848414)
+#  define costab8	MAD_F(0x7641af3d)
+#  define costab9	MAD_F(0x73b5ebd1)
+#  define costab10	MAD_F(0x70e2cbc6)
+#  define costab11	MAD_F(0x6dca0d14)
+#  define costab12	MAD_F(0x6a6d98a4)
+#  define costab13	MAD_F(0x66cf8120)
+#  define costab14	MAD_F(0x62f201ac)
+#  define costab15	MAD_F(0x5ed77c8a)
+#  define costab16	MAD_F(0x5a82799a)
+#  define costab17	MAD_F(0x55f5a4d2)
+#  define costab18	MAD_F(0x5133cc94)
+#  define costab19	MAD_F(0x4c3fdff4)
+#  define costab20	MAD_F(0x471cece7)
+#  define costab21	MAD_F(0x41ce1e65)
+#  define costab22	MAD_F(0x3c56ba70)
+#  define costab23	MAD_F(0x36ba2014)
+#  define costab24	MAD_F(0x30fbc54d)
+#  define costab25	MAD_F(0x2b1f34eb)
+#  define costab26	MAD_F(0x25280c5e)
+#  define costab27	MAD_F(0x1f19f97b)
+#  define costab28	MAD_F(0x18f8b83c)
+#  define costab29	MAD_F(0x12c8106f)
+#  define costab30	MAD_F(0x0c8bd35e)
+#  define costab31	MAD_F(0x0647d97c)
+# else
+#  define costab1	MAD_F(0x0ffb10f2)  /* 0.998795456 */
+#  define costab2	MAD_F(0x0fec46d2)  /* 0.995184727 */
+#  define costab3	MAD_F(0x0fd3aac0)  /* 0.989176510 */
+#  define costab4	MAD_F(0x0fb14be8)  /* 0.980785280 */
+#  define costab5	MAD_F(0x0f853f7e)  /* 0.970031253 */
+#  define costab6	MAD_F(0x0f4fa0ab)  /* 0.956940336 */
+#  define costab7	MAD_F(0x0f109082)  /* 0.941544065 */
+#  define costab8	MAD_F(0x0ec835e8)  /* 0.923879533 */
+#  define costab9	MAD_F(0x0e76bd7a)  /* 0.903989293 */
+#  define costab10	MAD_F(0x0e1c5979)  /* 0.881921264 */
+#  define costab11	MAD_F(0x0db941a3)  /* 0.857728610 */
+#  define costab12	MAD_F(0x0d4db315)  /* 0.831469612 */
+#  define costab13	MAD_F(0x0cd9f024)  /* 0.803207531 */
+#  define costab14	MAD_F(0x0c5e4036)  /* 0.773010453 */
+#  define costab15	MAD_F(0x0bdaef91)  /* 0.740951125 */
+#  define costab16	MAD_F(0x0b504f33)  /* 0.707106781 */
+#  define costab17	MAD_F(0x0abeb49a)  /* 0.671558955 */
+#  define costab18	MAD_F(0x0a267993)  /* 0.634393284 */
+#  define costab19	MAD_F(0x0987fbfe)  /* 0.595699304 */
+#  define costab20	MAD_F(0x08e39d9d)  /* 0.555570233 */
+#  define costab21	MAD_F(0x0839c3cd)  /* 0.514102744 */
+#  define costab22	MAD_F(0x078ad74e)  /* 0.471396737 */
+#  define costab23	MAD_F(0x06d74402)  /* 0.427555093 */
+#  define costab24	MAD_F(0x061f78aa)  /* 0.382683432 */
+#  define costab25	MAD_F(0x0563e69d)  /* 0.336889853 */
+#  define costab26	MAD_F(0x04a5018c)  /* 0.290284677 */
+#  define costab27	MAD_F(0x03e33f2f)  /* 0.242980180 */
+#  define costab28	MAD_F(0x031f1708)  /* 0.195090322 */
+#  define costab29	MAD_F(0x0259020e)  /* 0.146730474 */
+#  define costab30	MAD_F(0x01917a6c)  /* 0.098017140 */
+#  define costab31	MAD_F(0x00c8fb30)  /* 0.049067674 */
+# endif
+
+  t0   = in[0]  + in[31];  t16  = MUL(in[0]  - in[31], costab1);
+  t1   = in[15] + in[16];  t17  = MUL(in[15] - in[16], costab31);
+
+  t41  = t16 + t17;
+  t59  = MUL(t16 - t17, costab2);
+  t33  = t0  + t1;
+  t50  = MUL(t0  - t1,  costab2);
+
+  t2   = in[7]  + in[24];  t18  = MUL(in[7]  - in[24], costab15);
+  t3   = in[8]  + in[23];  t19  = MUL(in[8]  - in[23], costab17);
+
+  t42  = t18 + t19;
+  t60  = MUL(t18 - t19, costab30);
+  t34  = t2  + t3;
+  t51  = MUL(t2  - t3,  costab30);
+
+  t4   = in[3]  + in[28];  t20  = MUL(in[3]  - in[28], costab7);
+  t5   = in[12] + in[19];  t21  = MUL(in[12] - in[19], costab25);
+
+  t43  = t20 + t21;
+  t61  = MUL(t20 - t21, costab14);
+  t35  = t4  + t5;
+  t52  = MUL(t4  - t5,  costab14);
+
+  t6   = in[4]  + in[27];  t22  = MUL(in[4]  - in[27], costab9);
+  t7   = in[11] + in[20];  t23  = MUL(in[11] - in[20], costab23);
+
+  t44  = t22 + t23;
+  t62  = MUL(t22 - t23, costab18);
+  t36  = t6  + t7;
+  t53  = MUL(t6  - t7,  costab18);
+
+  t8   = in[1]  + in[30];  t24  = MUL(in[1]  - in[30], costab3);
+  t9   = in[14] + in[17];  t25  = MUL(in[14] - in[17], costab29);
+
+  t45  = t24 + t25;
+  t63  = MUL(t24 - t25, costab6);
+  t37  = t8  + t9;
+  t54  = MUL(t8  - t9,  costab6);
+
+  t10  = in[6]  + in[25];  t26  = MUL(in[6]  - in[25], costab13);
+  t11  = in[9]  + in[22];  t27  = MUL(in[9]  - in[22], costab19);
+
+  t46  = t26 + t27;
+  t64  = MUL(t26 - t27, costab26);
+  t38  = t10 + t11;
+  t55  = MUL(t10 - t11, costab26);
+
+  t12  = in[2]  + in[29];  t28  = MUL(in[2]  - in[29], costab5);
+  t13  = in[13] + in[18];  t29  = MUL(in[13] - in[18], costab27);
+
+  t47  = t28 + t29;
+  t65  = MUL(t28 - t29, costab10);
+  t39  = t12 + t13;
+  t56  = MUL(t12 - t13, costab10);
+
+  t14  = in[5]  + in[26];  t30  = MUL(in[5]  - in[26], costab11);
+  t15  = in[10] + in[21];  t31  = MUL(in[10] - in[21], costab21);
+
+  t48  = t30 + t31;
+  t66  = MUL(t30 - t31, costab22);
+  t40  = t14 + t15;
+  t57  = MUL(t14 - t15, costab22);
+
+  t69  = t33 + t34;  t89  = MUL(t33 - t34, costab4);
+  t70  = t35 + t36;  t90  = MUL(t35 - t36, costab28);
+  t71  = t37 + t38;  t91  = MUL(t37 - t38, costab12);
+  t72  = t39 + t40;  t92  = MUL(t39 - t40, costab20);
+  t73  = t41 + t42;  t94  = MUL(t41 - t42, costab4);
+  t74  = t43 + t44;  t95  = MUL(t43 - t44, costab28);
+  t75  = t45 + t46;  t96  = MUL(t45 - t46, costab12);
+  t76  = t47 + t48;  t97  = MUL(t47 - t48, costab20);
+
+  t78  = t50 + t51;  t100 = MUL(t50 - t51, costab4);
+  t79  = t52 + t53;  t101 = MUL(t52 - t53, costab28);
+  t80  = t54 + t55;  t102 = MUL(t54 - t55, costab12);
+  t81  = t56 + t57;  t103 = MUL(t56 - t57, costab20);
+
+  t83  = t59 + t60;  t106 = MUL(t59 - t60, costab4);
+  t84  = t61 + t62;  t107 = MUL(t61 - t62, costab28);
+  t85  = t63 + t64;  t108 = MUL(t63 - t64, costab12);
+  t86  = t65 + t66;  t109 = MUL(t65 - t66, costab20);
+
+  t113 = t69  + t70;
+  t114 = t71  + t72;
+
+  /*  0 */ hi[15][slot] = SHIFT(t113 + t114);
+  /* 16 */ lo[ 0][slot] = SHIFT(MUL(t113 - t114, costab16));
+
+  t115 = t73  + t74;
+  t116 = t75  + t76;
+
+  t32  = t115 + t116;
+
+  /*  1 */ hi[14][slot] = SHIFT(t32);
+
+  t118 = t78  + t79;
+  t119 = t80  + t81;
+
+  t58  = t118 + t119;
+
+  /*  2 */ hi[13][slot] = SHIFT(t58);
+
+  t121 = t83  + t84;
+  t122 = t85  + t86;
+
+  t67  = t121 + t122;
+
+  t49  = (t67 * 2) - t32;
+
+  /*  3 */ hi[12][slot] = SHIFT(t49);
+
+  t125 = t89  + t90;
+  t126 = t91  + t92;
+
+  t93  = t125 + t126;
+
+  /*  4 */ hi[11][slot] = SHIFT(t93);
+
+  t128 = t94  + t95;
+  t129 = t96  + t97;
+
+  t98  = t128 + t129;
+
+  t68  = (t98 * 2) - t49;
+
+  /*  5 */ hi[10][slot] = SHIFT(t68);
+
+  t132 = t100 + t101;
+  t133 = t102 + t103;
+
+  t104 = t132 + t133;
+
+  t82  = (t104 * 2) - t58;
+
+  /*  6 */ hi[ 9][slot] = SHIFT(t82);
+
+  t136 = t106 + t107;
+  t137 = t108 + t109;
+
+  t110 = t136 + t137;
+
+  t87  = (t110 * 2) - t67;
+
+  t77  = (t87 * 2) - t68;
+
+  /*  7 */ hi[ 8][slot] = SHIFT(t77);
+
+  t141 = MUL(t69 - t70, costab8);
+  t142 = MUL(t71 - t72, costab24);
+  t143 = t141 + t142;
+
+  /*  8 */ hi[ 7][slot] = SHIFT(t143);
+  /* 24 */ lo[ 8][slot] =
+	     SHIFT((MUL(t141 - t142, costab16) * 2) - t143);
+
+  t144 = MUL(t73 - t74, costab8);
+  t145 = MUL(t75 - t76, costab24);
+  t146 = t144 + t145;
+
+  t88  = (t146 * 2) - t77;
+
+  /*  9 */ hi[ 6][slot] = SHIFT(t88);
+
+  t148 = MUL(t78 - t79, costab8);
+  t149 = MUL(t80 - t81, costab24);
+  t150 = t148 + t149;
+
+  t105 = (t150 * 2) - t82;
+
+  /* 10 */ hi[ 5][slot] = SHIFT(t105);
+
+  t152 = MUL(t83 - t84, costab8);
+  t153 = MUL(t85 - t86, costab24);
+  t154 = t152 + t153;
+
+  t111 = (t154 * 2) - t87;
+
+  t99  = (t111 * 2) - t88;
+
+  /* 11 */ hi[ 4][slot] = SHIFT(t99);
+
+  t157 = MUL(t89 - t90, costab8);
+  t158 = MUL(t91 - t92, costab24);
+  t159 = t157 + t158;
+
+  t127 = (t159 * 2) - t93;
+
+  /* 12 */ hi[ 3][slot] = SHIFT(t127);
+
+  t160 = (MUL(t125 - t126, costab16) * 2) - t127;
+
+  /* 20 */ lo[ 4][slot] = SHIFT(t160);
+  /* 28 */ lo[12][slot] =
+	     SHIFT((((MUL(t157 - t158, costab16) * 2) - t159) * 2) - t160);
+
+  t161 = MUL(t94 - t95, costab8);
+  t162 = MUL(t96 - t97, costab24);
+  t163 = t161 + t162;
+
+  t130 = (t163 * 2) - t98;
+
+  t112 = (t130 * 2) - t99;
+
+  /* 13 */ hi[ 2][slot] = SHIFT(t112);
+
+  t164 = (MUL(t128 - t129, costab16) * 2) - t130;
+
+  t166 = MUL(t100 - t101, costab8);
+  t167 = MUL(t102 - t103, costab24);
+  t168 = t166 + t167;
+
+  t134 = (t168 * 2) - t104;
+
+  t120 = (t134 * 2) - t105;
+
+  /* 14 */ hi[ 1][slot] = SHIFT(t120);
+
+  t135 = (MUL(t118 - t119, costab16) * 2) - t120;
+
+  /* 18 */ lo[ 2][slot] = SHIFT(t135);
+
+  t169 = (MUL(t132 - t133, costab16) * 2) - t134;
+
+  t151 = (t169 * 2) - t135;
+
+  /* 22 */ lo[ 6][slot] = SHIFT(t151);
+
+  t170 = (((MUL(t148 - t149, costab16) * 2) - t150) * 2) - t151;
+
+  /* 26 */ lo[10][slot] = SHIFT(t170);
+  /* 30 */ lo[14][slot] =
+	     SHIFT((((((MUL(t166 - t167, costab16) * 2) -
+		       t168) * 2) - t169) * 2) - t170);
+
+  t171 = MUL(t106 - t107, costab8);
+  t172 = MUL(t108 - t109, costab24);
+  t173 = t171 + t172;
+
+  t138 = (t173 * 2) - t110;
+
+  t123 = (t138 * 2) - t111;
+
+  t139 = (MUL(t121 - t122, costab16) * 2) - t123;
+
+  t117 = (t123 * 2) - t112;
+
+  /* 15 */ hi[ 0][slot] = SHIFT(t117);
+
+  t124 = (MUL(t115 - t116, costab16) * 2) - t117;
+
+  /* 17 */ lo[ 1][slot] = SHIFT(t124);
+
+  t131 = (t139 * 2) - t124;
+
+  /* 19 */ lo[ 3][slot] = SHIFT(t131);
+
+  t140 = (t164 * 2) - t131;
+
+  /* 21 */ lo[ 5][slot] = SHIFT(t140);
+
+  t174 = (MUL(t136 - t137, costab16) * 2) - t138;
+
+  t155 = (t174 * 2) - t139;
+
+  t147 = (t155 * 2) - t140;
+
+  /* 23 */ lo[ 7][slot] = SHIFT(t147);
+
+  t156 = (((MUL(t144 - t145, costab16) * 2) - t146) * 2) - t147;
+
+  /* 25 */ lo[ 9][slot] = SHIFT(t156);
+
+  t175 = (((MUL(t152 - t153, costab16) * 2) - t154) * 2) - t155;
+
+  t165 = (t175 * 2) - t156;
+
+  /* 27 */ lo[11][slot] = SHIFT(t165);
+
+  t176 = (((((MUL(t161 - t162, costab16) * 2) -
+	     t163) * 2) - t164) * 2) - t165;
+
+  /* 29 */ lo[13][slot] = SHIFT(t176);
+  /* 31 */ lo[15][slot] =
+	     SHIFT((((((((MUL(t171 - t172, costab16) * 2) -
+			 t173) * 2) - t174) * 2) - t175) * 2) - t176);
+
+  /*
+   * Totals:
+   *  80 multiplies
+   *  80 additions
+   * 119 subtractions
+   *  49 shifts (not counting SSO)
+   */
+}
+
+# undef MUL
+# undef SHIFT
+
+/* third SSO shift and/or D[] optimization preshift */
+
+# if defined(OPT_SSO)
+#  if MAD_F_FRACBITS != 28
+#   error "MAD_F_FRACBITS must be 28 to use OPT_SSO"
+#  endif
+#  define ML0(hi, lo, x, y)	((lo)  = (x) * (y))
+#  define MLA(hi, lo, x, y)	((lo) += (x) * (y))
+#  define MLN(hi, lo)		((lo)  = -(lo))
+#  define MLZ(hi, lo)		((void) (hi), (mad_fixed_t) (lo))
+#  define SHIFT(x)		((x) >> 2)
+#  define PRESHIFT(x)		((MAD_F(x) + (1L << 13)) >> 14)
+# else
+#  define ML0(hi, lo, x, y)	MAD_F_ML0((hi), (lo), (x), (y))
+#  define MLA(hi, lo, x, y)	MAD_F_MLA((hi), (lo), (x), (y))
+#  define MLN(hi, lo)		MAD_F_MLN((hi), (lo))
+#  define MLZ(hi, lo)		MAD_F_MLZ((hi), (lo))
+#  define SHIFT(x)		(x)
+#  if defined(MAD_F_SCALEBITS)
+#   undef  MAD_F_SCALEBITS
+#   define MAD_F_SCALEBITS	(MAD_F_FRACBITS - 12)
+#   define PRESHIFT(x)		(MAD_F(x) >> 12)
+#  else
+#   define PRESHIFT(x)		MAD_F(x)
+#  endif
+# endif
+
+static
+mad_fixed_t const D[17][32] = {
+# include "D.dat"
+};
+
+# if defined(ASO_SYNTH)
+void synth_full(struct mad_synth *, struct mad_frame const *,
+		unsigned int, unsigned int);
+# else
+/*
+ * NAME:	synth->full()
+ * DESCRIPTION:	perform full frequency PCM synthesis
+ */
+static
+void synth_full(struct mad_synth *synth, struct mad_frame const *frame,
+		unsigned int nch, unsigned int ns)
+{
+  unsigned int phase, ch, s, sb, pe, po;
+  mad_fixed_t *pcm1, *pcm2, (*filter)[2][2][16][8];
+  mad_fixed_t const (*sbsample)[36][32];
+  register mad_fixed_t (*fe)[8], (*fx)[8], (*fo)[8];
+  register mad_fixed_t const (*Dptr)[32], *ptr;
+  register mad_fixed64hi_t hi;
+  register mad_fixed64lo_t lo;
+
+  for (ch = 0; ch < nch; ++ch) {
+    sbsample = &frame->sbsample[ch];
+    filter   = &synth->filter[ch];
+    phase    = synth->phase;
+    pcm1     = synth->pcm.samples[ch];
+
+    for (s = 0; s < ns; ++s) {
+      dct32((*sbsample)[s], phase >> 1,
+	    (*filter)[0][phase & 1], (*filter)[1][phase & 1]);
+
+      pe = phase & ~1;
+      po = ((phase - 1) & 0xf) | 1;
+
+      /* calculate 32 samples */
+
+      fe = &(*filter)[0][ phase & 1][0];
+      fx = &(*filter)[0][~phase & 1][0];
+      fo = &(*filter)[1][~phase & 1][0];
+
+      Dptr = &D[0];
+
+      ptr = *Dptr + po;
+      ML0(hi, lo, (*fx)[0], ptr[ 0]);
+      MLA(hi, lo, (*fx)[1], ptr[14]);
+      MLA(hi, lo, (*fx)[2], ptr[12]);
+      MLA(hi, lo, (*fx)[3], ptr[10]);
+      MLA(hi, lo, (*fx)[4], ptr[ 8]);
+      MLA(hi, lo, (*fx)[5], ptr[ 6]);
+      MLA(hi, lo, (*fx)[6], ptr[ 4]);
+      MLA(hi, lo, (*fx)[7], ptr[ 2]);
+      MLN(hi, lo);
+
+      ptr = *Dptr + pe;
+      MLA(hi, lo, (*fe)[0], ptr[ 0]);
+      MLA(hi, lo, (*fe)[1], ptr[14]);
+      MLA(hi, lo, (*fe)[2], ptr[12]);
+      MLA(hi, lo, (*fe)[3], ptr[10]);
+      MLA(hi, lo, (*fe)[4], ptr[ 8]);
+      MLA(hi, lo, (*fe)[5], ptr[ 6]);
+      MLA(hi, lo, (*fe)[6], ptr[ 4]);
+      MLA(hi, lo, (*fe)[7], ptr[ 2]);
+
+      *pcm1++ = SHIFT(MLZ(hi, lo));
+
+      pcm2 = pcm1 + 30;
+
+      for (sb = 1; sb < 16; ++sb) {
+	++fe;
+	++Dptr;
+
+	/* D[32 - sb][i] == -D[sb][31 - i] */
+
+	ptr = *Dptr + po;
+	ML0(hi, lo, (*fo)[0], ptr[ 0]);
+	MLA(hi, lo, (*fo)[1], ptr[14]);
+	MLA(hi, lo, (*fo)[2], ptr[12]);
+	MLA(hi, lo, (*fo)[3], ptr[10]);
+	MLA(hi, lo, (*fo)[4], ptr[ 8]);
+	MLA(hi, lo, (*fo)[5], ptr[ 6]);
+	MLA(hi, lo, (*fo)[6], ptr[ 4]);
+	MLA(hi, lo, (*fo)[7], ptr[ 2]);
+	MLN(hi, lo);
+
+	ptr = *Dptr + pe;
+	MLA(hi, lo, (*fe)[7], ptr[ 2]);
+	MLA(hi, lo, (*fe)[6], ptr[ 4]);
+	MLA(hi, lo, (*fe)[5], ptr[ 6]);
+	MLA(hi, lo, (*fe)[4], ptr[ 8]);
+	MLA(hi, lo, (*fe)[3], ptr[10]);
+	MLA(hi, lo, (*fe)[2], ptr[12]);
+	MLA(hi, lo, (*fe)[1], ptr[14]);
+	MLA(hi, lo, (*fe)[0], ptr[ 0]);
+
+	*pcm1++ = SHIFT(MLZ(hi, lo));
+
+	ptr = *Dptr - pe;
+	ML0(hi, lo, (*fe)[0], ptr[31 - 16]);
+	MLA(hi, lo, (*fe)[1], ptr[31 - 14]);
+	MLA(hi, lo, (*fe)[2], ptr[31 - 12]);
+	MLA(hi, lo, (*fe)[3], ptr[31 - 10]);
+	MLA(hi, lo, (*fe)[4], ptr[31 -  8]);
+	MLA(hi, lo, (*fe)[5], ptr[31 -  6]);
+	MLA(hi, lo, (*fe)[6], ptr[31 -  4]);
+	MLA(hi, lo, (*fe)[7], ptr[31 -  2]);
+
+	ptr = *Dptr - po;
+	MLA(hi, lo, (*fo)[7], ptr[31 -  2]);
+	MLA(hi, lo, (*fo)[6], ptr[31 -  4]);
+	MLA(hi, lo, (*fo)[5], ptr[31 -  6]);
+	MLA(hi, lo, (*fo)[4], ptr[31 -  8]);
+	MLA(hi, lo, (*fo)[3], ptr[31 - 10]);
+	MLA(hi, lo, (*fo)[2], ptr[31 - 12]);
+	MLA(hi, lo, (*fo)[1], ptr[31 - 14]);
+	MLA(hi, lo, (*fo)[0], ptr[31 - 16]);
+
+	*pcm2-- = SHIFT(MLZ(hi, lo));
+
+	++fo;
+      }
+
+      ++Dptr;
+
+      ptr = *Dptr + po;
+      ML0(hi, lo, (*fo)[0], ptr[ 0]);
+      MLA(hi, lo, (*fo)[1], ptr[14]);
+      MLA(hi, lo, (*fo)[2], ptr[12]);
+      MLA(hi, lo, (*fo)[3], ptr[10]);
+      MLA(hi, lo, (*fo)[4], ptr[ 8]);
+      MLA(hi, lo, (*fo)[5], ptr[ 6]);
+      MLA(hi, lo, (*fo)[6], ptr[ 4]);
+      MLA(hi, lo, (*fo)[7], ptr[ 2]);
+
+      *pcm1 = SHIFT(-MLZ(hi, lo));
+      pcm1 += 16;
+
+      phase = (phase + 1) % 16;
+    }
+  }
+}
+# endif
+
+/*
+ * NAME:	synth->half()
+ * DESCRIPTION:	perform half frequency PCM synthesis
+ */
+static
+void synth_half(struct mad_synth *synth, struct mad_frame const *frame,
+		unsigned int nch, unsigned int ns)
+{
+  unsigned int phase, ch, s, sb, pe, po;
+  mad_fixed_t *pcm1, *pcm2, (*filter)[2][2][16][8];
+  mad_fixed_t const (*sbsample)[36][32];
+  register mad_fixed_t (*fe)[8], (*fx)[8], (*fo)[8];
+  register mad_fixed_t const (*Dptr)[32], *ptr;
+  register mad_fixed64hi_t hi;
+  register mad_fixed64lo_t lo;
+
+  for (ch = 0; ch < nch; ++ch) {
+    sbsample = &frame->sbsample[ch];
+    filter   = &synth->filter[ch];
+    phase    = synth->phase;
+    pcm1     = synth->pcm.samples[ch];
+
+    for (s = 0; s < ns; ++s) {
+      dct32((*sbsample)[s], phase >> 1,
+	    (*filter)[0][phase & 1], (*filter)[1][phase & 1]);
+
+      pe = phase & ~1;
+      po = ((phase - 1) & 0xf) | 1;
+
+      /* calculate 16 samples */
+
+      fe = &(*filter)[0][ phase & 1][0];
+      fx = &(*filter)[0][~phase & 1][0];
+      fo = &(*filter)[1][~phase & 1][0];
+
+      Dptr = &D[0];
+
+      ptr = *Dptr + po;
+      ML0(hi, lo, (*fx)[0], ptr[ 0]);
+      MLA(hi, lo, (*fx)[1], ptr[14]);
+      MLA(hi, lo, (*fx)[2], ptr[12]);
+      MLA(hi, lo, (*fx)[3], ptr[10]);
+      MLA(hi, lo, (*fx)[4], ptr[ 8]);
+      MLA(hi, lo, (*fx)[5], ptr[ 6]);
+      MLA(hi, lo, (*fx)[6], ptr[ 4]);
+      MLA(hi, lo, (*fx)[7], ptr[ 2]);
+      MLN(hi, lo);
+
+      ptr = *Dptr + pe;
+      MLA(hi, lo, (*fe)[0], ptr[ 0]);
+      MLA(hi, lo, (*fe)[1], ptr[14]);
+      MLA(hi, lo, (*fe)[2], ptr[12]);
+      MLA(hi, lo, (*fe)[3], ptr[10]);
+      MLA(hi, lo, (*fe)[4], ptr[ 8]);
+      MLA(hi, lo, (*fe)[5], ptr[ 6]);
+      MLA(hi, lo, (*fe)[6], ptr[ 4]);
+      MLA(hi, lo, (*fe)[7], ptr[ 2]);
+
+      *pcm1++ = SHIFT(MLZ(hi, lo));
+
+      pcm2 = pcm1 + 14;
+
+      for (sb = 1; sb < 16; ++sb) {
+	++fe;
+	++Dptr;
+
+	/* D[32 - sb][i] == -D[sb][31 - i] */
+
+	if (!(sb & 1)) {
+	  ptr = *Dptr + po;
+	  ML0(hi, lo, (*fo)[0], ptr[ 0]);
+	  MLA(hi, lo, (*fo)[1], ptr[14]);
+	  MLA(hi, lo, (*fo)[2], ptr[12]);
+	  MLA(hi, lo, (*fo)[3], ptr[10]);
+	  MLA(hi, lo, (*fo)[4], ptr[ 8]);
+	  MLA(hi, lo, (*fo)[5], ptr[ 6]);
+	  MLA(hi, lo, (*fo)[6], ptr[ 4]);
+	  MLA(hi, lo, (*fo)[7], ptr[ 2]);
+	  MLN(hi, lo);
+
+	  ptr = *Dptr + pe;
+	  MLA(hi, lo, (*fe)[7], ptr[ 2]);
+	  MLA(hi, lo, (*fe)[6], ptr[ 4]);
+	  MLA(hi, lo, (*fe)[5], ptr[ 6]);
+	  MLA(hi, lo, (*fe)[4], ptr[ 8]);
+	  MLA(hi, lo, (*fe)[3], ptr[10]);
+	  MLA(hi, lo, (*fe)[2], ptr[12]);
+	  MLA(hi, lo, (*fe)[1], ptr[14]);
+	  MLA(hi, lo, (*fe)[0], ptr[ 0]);
+
+	  *pcm1++ = SHIFT(MLZ(hi, lo));
+
+	  ptr = *Dptr - po;
+	  ML0(hi, lo, (*fo)[7], ptr[31 -  2]);
+	  MLA(hi, lo, (*fo)[6], ptr[31 -  4]);
+	  MLA(hi, lo, (*fo)[5], ptr[31 -  6]);
+	  MLA(hi, lo, (*fo)[4], ptr[31 -  8]);
+	  MLA(hi, lo, (*fo)[3], ptr[31 - 10]);
+	  MLA(hi, lo, (*fo)[2], ptr[31 - 12]);
+	  MLA(hi, lo, (*fo)[1], ptr[31 - 14]);
+	  MLA(hi, lo, (*fo)[0], ptr[31 - 16]);
+
+	  ptr = *Dptr - pe;
+	  MLA(hi, lo, (*fe)[0], ptr[31 - 16]);
+	  MLA(hi, lo, (*fe)[1], ptr[31 - 14]);
+	  MLA(hi, lo, (*fe)[2], ptr[31 - 12]);
+	  MLA(hi, lo, (*fe)[3], ptr[31 - 10]);
+	  MLA(hi, lo, (*fe)[4], ptr[31 -  8]);
+	  MLA(hi, lo, (*fe)[5], ptr[31 -  6]);
+	  MLA(hi, lo, (*fe)[6], ptr[31 -  4]);
+	  MLA(hi, lo, (*fe)[7], ptr[31 -  2]);
+
+	  *pcm2-- = SHIFT(MLZ(hi, lo));
+	}
+
+	++fo;
+      }
+
+      ++Dptr;
+
+      ptr = *Dptr + po;
+      ML0(hi, lo, (*fo)[0], ptr[ 0]);
+      MLA(hi, lo, (*fo)[1], ptr[14]);
+      MLA(hi, lo, (*fo)[2], ptr[12]);
+      MLA(hi, lo, (*fo)[3], ptr[10]);
+      MLA(hi, lo, (*fo)[4], ptr[ 8]);
+      MLA(hi, lo, (*fo)[5], ptr[ 6]);
+      MLA(hi, lo, (*fo)[6], ptr[ 4]);
+      MLA(hi, lo, (*fo)[7], ptr[ 2]);
+
+      *pcm1 = SHIFT(-MLZ(hi, lo));
+      pcm1 += 8;
+
+      phase = (phase + 1) % 16;
+    }
+  }
+}
+
+/*
+ * NAME:	synth->frame()
+ * DESCRIPTION:	perform PCM synthesis of frame subband samples
+ */
+void mad_synth_frame(struct mad_synth *synth, struct mad_frame const *frame)
+{
+  unsigned int nch, ns;
+  void (*synth_frame)(struct mad_synth *, struct mad_frame const *,
+		      unsigned int, unsigned int);
+
+  nch = MAD_NCHANNELS(&frame->header);
+  ns  = MAD_NSBSAMPLES(&frame->header);
+
+  synth->pcm.samplerate = frame->header.samplerate;
+  synth->pcm.channels   = nch;
+  synth->pcm.length     = 32 * ns;
+
+  synth_frame = synth_full;
+
+  if (frame->options & MAD_OPTION_HALFSAMPLERATE) {
+    synth->pcm.samplerate /= 2;
+    synth->pcm.length     /= 2;
+
+    synth_frame = synth_half;
+  }
+
+  synth_frame(synth, frame, nch, ns);
+
+  synth->phase = (synth->phase + ns) % 16;
+}

lib/libmad/synth.h

@@ -0,0 +1,69 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: synth.h,v 1.15 2004/01/23 09:41:33 rob Exp $
+ */
+
+# ifndef LIBMAD_SYNTH_H
+# define LIBMAD_SYNTH_H
+
+# include "fixed.h"
+# include "frame.h"
+
+struct mad_pcm {
+  unsigned int samplerate;		/* sampling frequency (Hz) */
+  unsigned short channels;		/* number of channels */
+  unsigned short length;		/* number of samples per channel */
+  mad_fixed_t samples[2][1152];		/* PCM output samples [ch][sample] */
+};
+
+struct mad_synth {
+  mad_fixed_t filter[2][2][2][16][8];	/* polyphase filterbank outputs */
+  					/* [ch][eo][peo][s][v] */
+
+  unsigned int phase;			/* current processing phase */
+
+  struct mad_pcm pcm;			/* PCM output */
+};
+
+/* single channel PCM selector */
+enum {
+  MAD_PCM_CHANNEL_SINGLE = 0
+};
+
+/* dual channel PCM selector */
+enum {
+  MAD_PCM_CHANNEL_DUAL_1 = 0,
+  MAD_PCM_CHANNEL_DUAL_2 = 1
+};
+
+/* stereo PCM selector */
+enum {
+  MAD_PCM_CHANNEL_STEREO_LEFT  = 0,
+  MAD_PCM_CHANNEL_STEREO_RIGHT = 1
+};
+
+void mad_synth_init(struct mad_synth *);
+
+# define mad_synth_finish(synth)  /* nothing */
+
+void mad_synth_mute(struct mad_synth *);
+
+void mad_synth_frame(struct mad_synth *, struct mad_frame const *);
+
+# endif

lib/libmad/timer.c

@@ -0,0 +1,485 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: timer.c,v 1.18 2004/01/23 09:41:33 rob Exp $
+ */
+
+# ifdef HAVE_CONFIG_H
+#  include "config.h"
+# endif
+
+# include "global.h"
+
+# include <stdio.h>
+
+# ifdef HAVE_ASSERT_H
+#  include <assert.h>
+# endif
+
+# include "timer.h"
+
+mad_timer_t const mad_timer_zero = { 0, 0 };
+
+/*
+ * NAME:	timer->compare()
+ * DESCRIPTION:	indicate relative order of two timers
+ */
+int mad_timer_compare(mad_timer_t timer1, mad_timer_t timer2)
+{
+  signed long diff;
+
+  diff = timer1.seconds - timer2.seconds;
+  if (diff < 0)
+    return -1;
+  else if (diff > 0)
+    return +1;
+
+  diff = timer1.fraction - timer2.fraction;
+  if (diff < 0)
+    return -1;
+  else if (diff > 0)
+    return +1;
+
+  return 0;
+}
+
+/*
+ * NAME:	timer->negate()
+ * DESCRIPTION:	invert the sign of a timer
+ */
+void mad_timer_negate(mad_timer_t *timer)
+{
+  timer->seconds = -timer->seconds;
+
+  if (timer->fraction) {
+    timer->seconds -= 1;
+    timer->fraction = MAD_TIMER_RESOLUTION - timer->fraction;
+  }
+}
+
+/*
+ * NAME:	timer->abs()
+ * DESCRIPTION:	return the absolute value of a timer
+ */
+mad_timer_t mad_timer_abs(mad_timer_t timer)
+{
+  if (timer.seconds < 0)
+    mad_timer_negate(&timer);
+
+  return timer;
+}
+
+/*
+ * NAME:	reduce_timer()
+ * DESCRIPTION:	carry timer fraction into seconds
+ */
+static
+void reduce_timer(mad_timer_t *timer)
+{
+  timer->seconds  += timer->fraction / MAD_TIMER_RESOLUTION;
+  timer->fraction %= MAD_TIMER_RESOLUTION;
+}
+
+/*
+ * NAME:	gcd()
+ * DESCRIPTION:	compute greatest common denominator
+ */
+static
+unsigned long gcd(unsigned long num1, unsigned long num2)
+{
+  unsigned long tmp;
+
+  while (num2) {
+    tmp  = num2;
+    num2 = num1 % num2;
+    num1 = tmp;
+  }
+
+  return num1;
+}
+
+/*
+ * NAME:	reduce_rational()
+ * DESCRIPTION:	convert rational expression to lowest terms
+ */
+static
+void reduce_rational(unsigned long *numer, unsigned long *denom)
+{
+  unsigned long factor;
+
+  factor = gcd(*numer, *denom);
+
+  assert(factor != 0);
+
+  *numer /= factor;
+  *denom /= factor;
+}
+
+/*
+ * NAME:	scale_rational()
+ * DESCRIPTION:	solve numer/denom == ?/scale avoiding overflowing
+ */
+static
+unsigned long scale_rational(unsigned long numer, unsigned long denom,
+			     unsigned long scale)
+{
+  reduce_rational(&numer, &denom);
+  reduce_rational(&scale, &denom);
+
+  assert(denom != 0);
+
+  if (denom < scale)
+    return numer * (scale / denom) + numer * (scale % denom) / denom;
+  if (denom < numer)
+    return scale * (numer / denom) + scale * (numer % denom) / denom;
+
+  return numer * scale / denom;
+}
+
+/*
+ * NAME:	timer->set()
+ * DESCRIPTION:	set timer to specific (positive) value
+ */
+void mad_timer_set(mad_timer_t *timer, unsigned long seconds,
+		   unsigned long numer, unsigned long denom)
+{
+  timer->seconds = seconds;
+  if (numer >= denom && denom > 0) {
+    timer->seconds += numer / denom;
+    numer %= denom;
+  }
+
+  switch (denom) {
+  case 0:
+  case 1:
+    timer->fraction = 0;
+    break;
+
+  case MAD_TIMER_RESOLUTION:
+    timer->fraction = numer;
+    break;
+
+  case 1000:
+    timer->fraction = numer * (MAD_TIMER_RESOLUTION /  1000);
+    break;
+
+  case 8000:
+    timer->fraction = numer * (MAD_TIMER_RESOLUTION /  8000);
+    break;
+
+  case 11025:
+    timer->fraction = numer * (MAD_TIMER_RESOLUTION / 11025);
+    break;
+
+  case 12000:
+    timer->fraction = numer * (MAD_TIMER_RESOLUTION / 12000);
+    break;
+
+  case 16000:
+    timer->fraction = numer * (MAD_TIMER_RESOLUTION / 16000);
+    break;
+
+  case 22050:
+    timer->fraction = numer * (MAD_TIMER_RESOLUTION / 22050);
+    break;
+
+  case 24000:
+    timer->fraction = numer * (MAD_TIMER_RESOLUTION / 24000);
+    break;
+
+  case 32000:
+    timer->fraction = numer * (MAD_TIMER_RESOLUTION / 32000);
+    break;
+
+  case 44100:
+    timer->fraction = numer * (MAD_TIMER_RESOLUTION / 44100);
+    break;
+
+  case 48000:
+    timer->fraction = numer * (MAD_TIMER_RESOLUTION / 48000);
+    break;
+
+  default:
+    timer->fraction = scale_rational(numer, denom, MAD_TIMER_RESOLUTION);
+    break;
+  }
+
+  if (timer->fraction >= MAD_TIMER_RESOLUTION)
+    reduce_timer(timer);
+}
+
+/*
+ * NAME:	timer->add()
+ * DESCRIPTION:	add one timer to another
+ */
+void mad_timer_add(mad_timer_t *timer, mad_timer_t incr)
+{
+  timer->seconds  += incr.seconds;
+  timer->fraction += incr.fraction;
+
+  if (timer->fraction >= MAD_TIMER_RESOLUTION)
+    reduce_timer(timer);
+}
+
+/*
+ * NAME:	timer->multiply()
+ * DESCRIPTION:	multiply a timer by a scalar value
+ */
+void mad_timer_multiply(mad_timer_t *timer, signed long scalar)
+{
+  mad_timer_t addend;
+  unsigned long factor;
+
+  factor = scalar;
+  if (scalar < 0) {
+    factor = -scalar;
+    mad_timer_negate(timer);
+  }
+
+  addend = *timer;
+  *timer = mad_timer_zero;
+
+  while (factor) {
+    if (factor & 1)
+      mad_timer_add(timer, addend);
+
+    mad_timer_add(&addend, addend);
+    factor >>= 1;
+  }
+}
+
+/*
+ * NAME:	timer->count()
+ * DESCRIPTION:	return timer value in selected units
+ */
+signed long mad_timer_count(mad_timer_t timer, enum mad_units units)
+{
+  switch (units) {
+  case MAD_UNITS_HOURS:
+    return timer.seconds / 60 / 60;
+
+  case MAD_UNITS_MINUTES:
+    return timer.seconds / 60;
+
+  case MAD_UNITS_SECONDS:
+    return timer.seconds;
+
+  case MAD_UNITS_DECISECONDS:
+  case MAD_UNITS_CENTISECONDS:
+  case MAD_UNITS_MILLISECONDS:
+
+  case MAD_UNITS_8000_HZ:
+  case MAD_UNITS_11025_HZ:
+  case MAD_UNITS_12000_HZ:
+  case MAD_UNITS_16000_HZ:
+  case MAD_UNITS_22050_HZ:
+  case MAD_UNITS_24000_HZ:
+  case MAD_UNITS_32000_HZ:
+  case MAD_UNITS_44100_HZ:
+  case MAD_UNITS_48000_HZ:
+
+  case MAD_UNITS_24_FPS:
+  case MAD_UNITS_25_FPS:
+  case MAD_UNITS_30_FPS:
+  case MAD_UNITS_48_FPS:
+  case MAD_UNITS_50_FPS:
+  case MAD_UNITS_60_FPS:
+  case MAD_UNITS_75_FPS:
+    return timer.seconds * (signed long) units +
+      (signed long) scale_rational(timer.fraction, MAD_TIMER_RESOLUTION,
+				   units);
+
+  case MAD_UNITS_23_976_FPS:
+  case MAD_UNITS_24_975_FPS:
+  case MAD_UNITS_29_97_FPS:
+  case MAD_UNITS_47_952_FPS:
+  case MAD_UNITS_49_95_FPS:
+  case MAD_UNITS_59_94_FPS:
+    return (mad_timer_count(timer, -units) + 1) * 1000 / 1001;
+  }
+
+  /* unsupported units */
+  return 0;
+}
+
+/*
+ * NAME:	timer->fraction()
+ * DESCRIPTION:	return fractional part of timer in arbitrary terms
+ */
+unsigned long mad_timer_fraction(mad_timer_t timer, unsigned long denom)
+{
+  timer = mad_timer_abs(timer);
+
+  switch (denom) {
+  case 0:
+    return timer.fraction ?
+      MAD_TIMER_RESOLUTION / timer.fraction : MAD_TIMER_RESOLUTION + 1;
+
+  case MAD_TIMER_RESOLUTION:
+    return timer.fraction;
+
+  default:
+    return scale_rational(timer.fraction, MAD_TIMER_RESOLUTION, denom);
+  }
+}
+
+/*
+ * NAME:	timer->string()
+ * DESCRIPTION:	write a string representation of a timer using a template
+ */
+void mad_timer_string(mad_timer_t timer,
+		      char *dest, char const *format, enum mad_units units,
+		      enum mad_units fracunits, unsigned long subparts)
+{
+  unsigned long hours, minutes, seconds, sub;
+  unsigned int frac;
+
+  timer = mad_timer_abs(timer);
+
+  seconds = timer.seconds;
+  frac = sub = 0;
+
+  switch (fracunits) {
+  case MAD_UNITS_HOURS:
+  case MAD_UNITS_MINUTES:
+  case MAD_UNITS_SECONDS:
+    break;
+
+  case MAD_UNITS_DECISECONDS:
+  case MAD_UNITS_CENTISECONDS:
+  case MAD_UNITS_MILLISECONDS:
+
+  case MAD_UNITS_8000_HZ:
+  case MAD_UNITS_11025_HZ:
+  case MAD_UNITS_12000_HZ:
+  case MAD_UNITS_16000_HZ:
+  case MAD_UNITS_22050_HZ:
+  case MAD_UNITS_24000_HZ:
+  case MAD_UNITS_32000_HZ:
+  case MAD_UNITS_44100_HZ:
+  case MAD_UNITS_48000_HZ:
+
+  case MAD_UNITS_24_FPS:
+  case MAD_UNITS_25_FPS:
+  case MAD_UNITS_30_FPS:
+  case MAD_UNITS_48_FPS:
+  case MAD_UNITS_50_FPS:
+  case MAD_UNITS_60_FPS:
+  case MAD_UNITS_75_FPS:
+    {
+      unsigned long denom;
+
+      denom = MAD_TIMER_RESOLUTION / fracunits;
+
+      frac = timer.fraction / denom;
+      sub  = scale_rational(timer.fraction % denom, denom, subparts);
+    }
+    break;
+
+  case MAD_UNITS_23_976_FPS:
+  case MAD_UNITS_24_975_FPS:
+  case MAD_UNITS_29_97_FPS:
+  case MAD_UNITS_47_952_FPS:
+  case MAD_UNITS_49_95_FPS:
+  case MAD_UNITS_59_94_FPS:
+    /* drop-frame encoding */
+    /* N.B. this is only well-defined for MAD_UNITS_29_97_FPS */
+    {
+      unsigned long frame, cycle, d, m;
+
+      frame = mad_timer_count(timer, fracunits);
+
+      cycle = -fracunits * 60 * 10 - (10 - 1) * 2;
+
+      d = frame / cycle;
+      m = frame % cycle;
+      frame += (10 - 1) * 2 * d;
+      if (m > 2)
+	frame += 2 * ((m - 2) / (cycle / 10));
+
+      frac    = frame % -fracunits;
+      seconds = frame / -fracunits;
+    }
+    break;
+  }
+
+  switch (units) {
+  case MAD_UNITS_HOURS:
+    minutes = seconds / 60;
+    hours   = minutes / 60;
+
+    sprintf(dest, format,
+	    hours,
+	    (unsigned int) (minutes % 60),
+	    (unsigned int) (seconds % 60),
+	    frac, sub);
+    break;
+
+  case MAD_UNITS_MINUTES:
+    minutes = seconds / 60;
+
+    sprintf(dest, format,
+	    minutes,
+	    (unsigned int) (seconds % 60),
+	    frac, sub);
+    break;
+
+  case MAD_UNITS_SECONDS:
+    sprintf(dest, format,
+	    seconds,
+	    frac, sub);
+    break;
+
+  case MAD_UNITS_23_976_FPS:
+  case MAD_UNITS_24_975_FPS:
+  case MAD_UNITS_29_97_FPS:
+  case MAD_UNITS_47_952_FPS:
+  case MAD_UNITS_49_95_FPS:
+  case MAD_UNITS_59_94_FPS:
+    if (fracunits < 0) {
+      /* not yet implemented */
+      sub = 0;
+    }
+
+    /* fall through */
+
+  case MAD_UNITS_DECISECONDS:
+  case MAD_UNITS_CENTISECONDS:
+  case MAD_UNITS_MILLISECONDS:
+
+  case MAD_UNITS_8000_HZ:
+  case MAD_UNITS_11025_HZ:
+  case MAD_UNITS_12000_HZ:
+  case MAD_UNITS_16000_HZ:
+  case MAD_UNITS_22050_HZ:
+  case MAD_UNITS_24000_HZ:
+  case MAD_UNITS_32000_HZ:
+  case MAD_UNITS_44100_HZ:
+  case MAD_UNITS_48000_HZ:
+
+  case MAD_UNITS_24_FPS:
+  case MAD_UNITS_25_FPS:
+  case MAD_UNITS_30_FPS:
+  case MAD_UNITS_48_FPS:
+  case MAD_UNITS_50_FPS:
+  case MAD_UNITS_60_FPS:
+  case MAD_UNITS_75_FPS:
+    sprintf(dest, format, mad_timer_count(timer, units), sub);
+    break;
+  }
+}

lib/libmad/timer.h

@@ -0,0 +1,100 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: timer.h,v 1.16 2004/01/23 09:41:33 rob Exp $
+ */
+
+# ifndef LIBMAD_TIMER_H
+# define LIBMAD_TIMER_H
+
+typedef struct {
+  signed long seconds;		/* whole seconds */
+  unsigned long fraction;	/* 1/MAD_TIMER_RESOLUTION seconds */
+} mad_timer_t;
+
+extern mad_timer_t const mad_timer_zero;
+
+# define MAD_TIMER_RESOLUTION	352800000UL
+
+enum mad_units {
+  MAD_UNITS_HOURS	 =    -2,
+  MAD_UNITS_MINUTES	 =    -1,
+  MAD_UNITS_SECONDS	 =     0,
+
+  /* metric units */
+
+  MAD_UNITS_DECISECONDS	 =    10,
+  MAD_UNITS_CENTISECONDS =   100,
+  MAD_UNITS_MILLISECONDS =  1000,
+
+  /* audio sample units */
+
+  MAD_UNITS_8000_HZ	 =  8000,
+  MAD_UNITS_11025_HZ	 = 11025,
+  MAD_UNITS_12000_HZ	 = 12000,
+
+  MAD_UNITS_16000_HZ	 = 16000,
+  MAD_UNITS_22050_HZ	 = 22050,
+  MAD_UNITS_24000_HZ	 = 24000,
+
+  MAD_UNITS_32000_HZ	 = 32000,
+  MAD_UNITS_44100_HZ	 = 44100,
+  MAD_UNITS_48000_HZ	 = 48000,
+
+  /* video frame/field units */
+
+  MAD_UNITS_24_FPS	 =    24,
+  MAD_UNITS_25_FPS	 =    25,
+  MAD_UNITS_30_FPS	 =    30,
+  MAD_UNITS_48_FPS	 =    48,
+  MAD_UNITS_50_FPS	 =    50,
+  MAD_UNITS_60_FPS	 =    60,
+
+  /* CD audio frames */
+
+  MAD_UNITS_75_FPS	 =    75,
+
+  /* video drop-frame units */
+
+  MAD_UNITS_23_976_FPS	 =   -24,
+  MAD_UNITS_24_975_FPS	 =   -25,
+  MAD_UNITS_29_97_FPS	 =   -30,
+  MAD_UNITS_47_952_FPS	 =   -48,
+  MAD_UNITS_49_95_FPS	 =   -50,
+  MAD_UNITS_59_94_FPS	 =   -60
+};
+
+# define mad_timer_reset(timer)	((void) (*(timer) = mad_timer_zero))
+
+int mad_timer_compare(mad_timer_t, mad_timer_t);
+
+# define mad_timer_sign(timer)	mad_timer_compare((timer), mad_timer_zero)
+
+void mad_timer_negate(mad_timer_t *);
+mad_timer_t mad_timer_abs(mad_timer_t);
+
+void mad_timer_set(mad_timer_t *, unsigned long, unsigned long, unsigned long);
+void mad_timer_add(mad_timer_t *, mad_timer_t);
+void mad_timer_multiply(mad_timer_t *, signed long);
+
+signed long mad_timer_count(mad_timer_t, enum mad_units);
+unsigned long mad_timer_fraction(mad_timer_t, unsigned long);
+void mad_timer_string(mad_timer_t, char *, char const *,
+		      enum mad_units, enum mad_units, unsigned long);
+
+# endif

lib/libmad/version.c

@@ -0,0 +1,91 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: version.c,v 1.15 2004/01/23 09:41:33 rob Exp $
+ */
+
+# ifdef HAVE_CONFIG_H
+#  include "config.h"
+# endif
+
+# include "global.h"
+
+# include "version.h"
+
+char const mad_version[]   = "MPEG Audio Decoder " MAD_VERSION;
+char const mad_copyright[] = "Copyright (C) " MAD_PUBLISHYEAR " " MAD_AUTHOR;
+char const mad_author[]    = MAD_AUTHOR " <" MAD_EMAIL ">";
+
+char const mad_build[] = ""
+# if defined(DEBUG)
+  "DEBUG "
+# elif defined(NDEBUG)
+  "NDEBUG "
+# endif
+
+# if defined(EXPERIMENTAL)
+  "EXPERIMENTAL "
+# endif
+
+# if defined(FPM_64BIT)
+  "FPM_64BIT "
+# elif defined(FPM_INTEL)
+  "FPM_INTEL "
+# elif defined(FPM_ARM)
+  "FPM_ARM "
+# elif defined(FPM_MIPS)
+  "FPM_MIPS "
+# elif defined(FPM_SPARC)
+  "FPM_SPARC "
+# elif defined(FPM_PPC)
+  "FPM_PPC "
+# elif defined(FPM_DEFAULT)
+  "FPM_DEFAULT "
+# endif
+
+# if defined(ASO_IMDCT)
+  "ASO_IMDCT "
+# endif
+# if defined(ASO_INTERLEAVE1)
+  "ASO_INTERLEAVE1 "
+# endif
+# if defined(ASO_INTERLEAVE2)
+  "ASO_INTERLEAVE2 "
+# endif
+# if defined(ASO_ZEROCHECK)
+  "ASO_ZEROCHECK "
+# endif
+
+# if defined(OPT_SPEED)
+  "OPT_SPEED "
+# elif defined(OPT_ACCURACY)
+  "OPT_ACCURACY "
+# endif
+
+# if defined(OPT_SSO)
+  "OPT_SSO "
+# endif
+
+# if defined(OPT_DCTO)  /* never defined here */
+  "OPT_DCTO "
+# endif
+
+# if defined(OPT_STRICT)
+  "OPT_STRICT "
+# endif
+;

lib/libmad/version.h

@@ -0,0 +1,47 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: version.h,v 1.26 2004/01/23 09:41:33 rob Exp $
+ */
+
+# ifndef LIBMAD_VERSION_H
+# define LIBMAD_VERSION_H
+
+# define MAD_VERSION_MAJOR	0
+# define MAD_VERSION_MINOR	15
+# define MAD_VERSION_PATCH	1
+# define MAD_VERSION_EXTRA	" (beta)"
+
+# define MAD_VERSION_STRINGIZE(str)	#str
+# define MAD_VERSION_STRING(num)	MAD_VERSION_STRINGIZE(num)
+
+# define MAD_VERSION		MAD_VERSION_STRING(MAD_VERSION_MAJOR) "."  \
+				MAD_VERSION_STRING(MAD_VERSION_MINOR) "."  \
+				MAD_VERSION_STRING(MAD_VERSION_PATCH)  \
+				MAD_VERSION_EXTRA
+
+# define MAD_PUBLISHYEAR	"2000-2004"
+# define MAD_AUTHOR		"Underbit Technologies, Inc."
+# define MAD_EMAIL		"info@underbit.com"
+
+extern char const mad_version[];
+extern char const mad_copyright[];
+extern char const mad_author[];
+extern char const mad_build[];
+
+# endif