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124 lines
3.9 KiB
124 lines
3.9 KiB
/*
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** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
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** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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**
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** Any non-GPL usage of this software or parts of this software is strictly
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** forbidden.
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**
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** The "appropriate copyright message" mentioned in section 2c of the GPLv2
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** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com"
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**
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** Commercial non-GPL licensing of this software is possible.
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** For more info contact Nero AG through Mpeg4AAClicense@nero.com.
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**/
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#include <fenv.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdlib.h>
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#include "neaacdec.h"
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int feenableexcept(int excepts);
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int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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size_t preamble = 2 + 2 + 1 + sizeof(NeAACDecConfiguration);
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NeAACDecConfiguration config;
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uint64_t sample_rate;
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unsigned char num_channels;
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NeAACDecConfigurationPtr config_ptr;
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/* feenableexcept(FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW); */
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if (size < preamble) return 0;
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size_t len1 = data[0] | (data[1] << 8);
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data += 2;
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size_t len2 = data[0] | (data[1] << 8);
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data += 2;
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uint8_t flags = data[0];
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data += 1;
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memcpy(&config, data, sizeof(NeAACDecConfiguration));
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data += sizeof(NeAACDecConfiguration);
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size -= preamble;
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if (len1 + len2 > size) return 0;
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size_t len3 = size - len1 - len2;
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int use_init2 = flags & 1;
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int seek_before = flags & 2;
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int seek_between = flags & 4;
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size_t buffer_op = (flags >> 3) & 3;
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int use_drm = flags & 32;
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int drm_channels = (flags >> 5) & 7;
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unsigned long drm_sample_rate = config.defSampleRate;
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int res, ok;
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const size_t kBufferSize[4] = {0, 0, 16, 16384};
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size_t buffer_size = kBufferSize[buffer_op];
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void* buffer = buffer_size > 0 ? (unsigned char *)malloc(buffer_size) : NULL;
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unsigned char* part1 = (unsigned char *)malloc(len1);
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unsigned char* part2 = (unsigned char *)malloc(len2);
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unsigned char* part3 = (unsigned char *)malloc(len3);
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memcpy(part1, data, len1);
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data += len1;
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memcpy(part2, data, len2);
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data += len2;
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memcpy(part3, data, len3);
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data += len3;
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NeAACDecHandle decoder = NeAACDecOpen();
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ok = NeAACDecSetConfiguration(decoder, &config);
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if (!ok) goto cleanup;
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config_ptr = NeAACDecGetCurrentConfiguration(decoder);
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if (!config_ptr) __builtin_trap();
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if (use_init2) {
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res = NeAACDecInit2(decoder, part1, len1, &sample_rate, &num_channels);
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} else {
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res = NeAACDecInit(decoder, part1, len1, &sample_rate, &num_channels);
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}
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if (use_drm) {
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#ifdef DRM_SUPPORT
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NeAACDecInitDRM(&decoder, drm_channels, drm_sample_rate);
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#else
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(void)drm_channels;
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(void)drm_sample_rate;
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#endif
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}
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if (res != 0) goto cleanup;
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NeAACDecFrameInfo faad_info;
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if (seek_before) {
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NeAACDecPostSeekReset(decoder, 0x1234567);
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}
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NeAACDecDecode(decoder, &faad_info, part2, len2);
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if (seek_between) {
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NeAACDecPostSeekReset(decoder, -0x1234567);
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}
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if (buffer_op == 0) {
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NeAACDecDecode(decoder, &faad_info, part3, len3);
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} else {
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NeAACDecDecode2(decoder, &faad_info, part3, len3, &buffer, buffer_size);
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}
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cleanup:
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NeAACDecClose(decoder);
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free(part1);
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free(part2);
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free(part3);
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if (buffer) free(buffer);
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return 0;
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}
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