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/*
** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com
**
** 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.
**
** Any non-GPL usage of this software or parts of this software is strictly
** forbidden.
**
** The "appropriate copyright message" mentioned in section 2c of the GPLv2
** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com"
**
** Commercial non-GPL licensing of this software is possible.
** For more info contact Nero AG through Mpeg4AAClicense@nero.com.
**/
#include <fenv.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include "neaacdec.h"
int feenableexcept(int excepts);
int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
size_t preamble = 2 + 2 + 1 + sizeof(NeAACDecConfiguration);
NeAACDecConfiguration config;
uint64_t sample_rate;
unsigned char num_channels;
NeAACDecConfigurationPtr config_ptr;
/* feenableexcept(FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW); */
if (size < preamble) return 0;
size_t len1 = data[0] | (data[1] << 8);
data += 2;
size_t len2 = data[0] | (data[1] << 8);
data += 2;
uint8_t flags = data[0];
data += 1;
memcpy(&config, data, sizeof(NeAACDecConfiguration));
data += sizeof(NeAACDecConfiguration);
size -= preamble;
if (len1 + len2 > size) return 0;
size_t len3 = size - len1 - len2;
int use_init2 = flags & 1;
int seek_before = flags & 2;
int seek_between = flags & 4;
size_t buffer_op = (flags >> 3) & 3;
int use_drm = flags & 32;
int drm_channels = (flags >> 5) & 7;
unsigned long drm_sample_rate = config.defSampleRate;
int res, ok;
const size_t kBufferSize[4] = {0, 0, 16, 16384};
size_t buffer_size = kBufferSize[buffer_op];
void* buffer = buffer_size > 0 ? (unsigned char *)malloc(buffer_size) : NULL;
unsigned char* part1 = (unsigned char *)malloc(len1);
unsigned char* part2 = (unsigned char *)malloc(len2);
unsigned char* part3 = (unsigned char *)malloc(len3);
memcpy(part1, data, len1);
data += len1;
memcpy(part2, data, len2);
data += len2;
memcpy(part3, data, len3);
data += len3;
NeAACDecHandle decoder = NeAACDecOpen();
ok = NeAACDecSetConfiguration(decoder, &config);
if (!ok) goto cleanup;
config_ptr = NeAACDecGetCurrentConfiguration(decoder);
if (!config_ptr) __builtin_trap();
if (use_init2) {
res = NeAACDecInit2(decoder, part1, len1, &sample_rate, &num_channels);
} else {
res = NeAACDecInit(decoder, part1, len1, &sample_rate, &num_channels);
}
if (use_drm) {
#ifdef DRM_SUPPORT
NeAACDecInitDRM(&decoder, drm_channels, drm_sample_rate);
#else
(void)drm_channels;
(void)drm_sample_rate;
#endif
}
if (res != 0) goto cleanup;
NeAACDecFrameInfo faad_info;
if (seek_before) {
NeAACDecPostSeekReset(decoder, 0x1234567);
}
NeAACDecDecode(decoder, &faad_info, part2, len2);
if (seek_between) {
NeAACDecPostSeekReset(decoder, -0x1234567);
}
if (buffer_op == 0) {
NeAACDecDecode(decoder, &faad_info, part3, len3);
} else {
NeAACDecDecode2(decoder, &faad_info, part3, len3, &buffer, buffer_size);
}
cleanup:
NeAACDecClose(decoder);
free(part1);
free(part2);
free(part3);
if (buffer) free(buffer);
return 0;
}
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