chromium/third_party/ffmpeg/libavcodec/mpeg4audio.c

/*
 * MPEG-4 Audio common code
 * Copyright (c) 2008 Baptiste Coudurier <[email protected]>
 * Copyright (c) 2009 Alex Converse <[email protected]>
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "get_bits.h"
#include "mpeg4audio.h"

/**
 * Parse MPEG-4 audio configuration for ALS object type.
 * @param[in] gb       bit reader context
 * @param[in] c        MPEG4AudioConfig structure to fill
 * @return on success 0 is returned, otherwise a value < 0
 */
static int parse_config_ALS(GetBitContext *gb, MPEG4AudioConfig *c, void *logctx)
{ … }

const uint8_t ff_mpeg4audio_channels[15] = …;

static inline int get_object_type(GetBitContext *gb)
{ … }

static inline int get_sample_rate(GetBitContext *gb, int *index)
{ … }

int ff_mpeg4audio_get_config_gb(MPEG4AudioConfig *c, GetBitContext *gb,
                                int sync_extension, void *logctx)
{ … }

int avpriv_mpeg4audio_get_config2(MPEG4AudioConfig *c, const uint8_t *buf,
                                  int size, int sync_extension, void *logctx)
{ … }