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111 lines
3.1 KiB
111 lines
3.1 KiB
<html>
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<head>
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<title>Tremor - Build</title>
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<link rel=stylesheet href="style.css" type="text/css">
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</head>
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<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
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<table border=0 width=100%>
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<tr>
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<td><p class=tiny>Tremor documentation</p></td>
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<td align=right><p class=tiny>Tremor version 1.0 - 20020403</p></td>
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</tr>
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</table>
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<h1>Tremor: Building libvorbisidec</h1>
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<p>
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The C source in the Tremor package will build on any ANSI C compiler
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and function completely and properly on any platform. The included
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build system assumes GNU build system and make tools (m4, automake,
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autoconf, libtool and gmake). GCC is not required, although GCC is
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the most tested compiler. To build using GNU tools, type in the
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source directory:
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<p>
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<pre><tt>
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./autogen.sh
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gmake
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</tt></pre>
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<p>
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or if GNU make is the standard make on the build system:
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<pre><tt>
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./autogen.sh
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make
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</tt></pre>
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<p>
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Currently, the source implements playback in pure C on all platforms
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except ARM, where a [currently] small amount of assembly (see the file
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asm_arm.h) is used to implement 64 bit math operations and
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fast LSP computation. If building on ARM without the benefit of GNU
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build system tools, be sure that <tt>_ARM_ASSEM_</tt> is #defined by
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the build system if this assembly is desired, else the resulting
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library will use whatever 64 bit math builtins the compiler
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implements.
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<p>
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No math library is required by this source. No floating point
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operations are used at any point in either setup or decode. This
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decoder library will properly decode any past, current or future
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Vorbis I file or stream.
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<p>
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The GNU build system produces static and, when supported by the OS,
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dynamic libraries named 'libvorbisidec'. This library exposes an API
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nearly identical to the BSD reference library's 'libvorbisfile',
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including all the features familiar to users of vorbisfile. This API
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is similar enough that the proper header file to include is named
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'ivorbisfile.h', included in the source build directory.
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Lower level libvorbis-style headers and structures are
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in 'ivorbiscodec.h', also included in the source build directory. A
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simple example program, ivorbisfile_example.c, can be built with 'make
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ivorbisfile_example'.
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<p>
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(We've summarized <a href="diff.html">differences between the free,
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reference vorbisfile library and Tremor's libvorbisidec in a separate
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document</a>.)
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<h3>Notes</h3>
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<p>Tremor requires a native 64 bit integer type to compile and
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function; The GNU build system will locate and typedef
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<tt>ogg_int64_t</tt> to the appropriate native type. If not using the
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GNU build tools, you will need to define <tt>ogg_int64_t</tt> as a
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64-bit type inside your system's project file/Makefile, etc. On win32,
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for example, this should be defined as <tt>__int64</tt>.
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<p>
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<br><br>
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<hr noshade>
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<table border=0 width=100%>
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<tr valign=top>
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<td><p class=tiny>copyright © 2002 Xiph.org</p></td>
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<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/">Ogg Vorbis</a></p></td>
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</tr><tr>
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<td><p class=tiny>Tremor documentation</p></td>
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<td align=right><p class=tiny>Tremor version 1.0 - 20020403</p></td>
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</tr>
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</table>
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</body>
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</html>
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