chromium/third_party/ffmpeg/libavcodec/avcodec.c

/*
 * AVCodecContext functions for libavcodec
 *
 * 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
 */

/**
 * @file
 * AVCodecContext functions for libavcodec
 */

#include "config.h"
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/bprint.h"
#include "libavutil/channel_layout.h"
#include "libavutil/emms.h"
#include "libavutil/fifo.h"
#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/thread.h"
#include "avcodec.h"
#include "avcodec_internal.h"
#include "bsf.h"
#include "codec_desc.h"
#include "codec_internal.h"
#include "decode.h"
#include "encode.h"
#include "frame_thread_encoder.h"
#include "hwconfig.h"
#include "internal.h"
#include "refstruct.h"
#include "thread.h"

/**
 * Maximum size in bytes of extradata.
 * This value was chosen such that every bit of the buffer is
 * addressable by a 32-bit signed integer as used by get_bits.
 */
#define FF_MAX_EXTRADATA_SIZE …

const SideDataMap ff_sd_global_map[] = …;


int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
{ … }

int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
{ … }

static AVMutex codec_mutex = …;

static void lock_avcodec(const FFCodec *codec)
{ … }

static void unlock_avcodec(const FFCodec *codec)
{ … }

static int64_t get_bit_rate(AVCodecContext *ctx)
{ … }

int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
{ … }

void avcodec_flush_buffers(AVCodecContext *avctx)
{ … }

void avsubtitle_free(AVSubtitle *sub)
{ … }

av_cold void ff_codec_close(AVCodecContext *avctx)
{ … }

#if FF_API_AVCODEC_CLOSE
int avcodec_close(AVCodecContext *avctx)
{ … }
#endif

static const char *unknown_if_null(const char *str)
{ … }

void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
{ … }

int avcodec_is_open(AVCodecContext *s)
{ … }

int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
{ … }