chromium/third_party/ffmpeg/libavcodec/opus_parser.c

/*
 * Copyright (c) 2013-2014 Mozilla Corporation
 *
 * 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
 * Opus parser
 *
 * Determines the duration for each packet.
 */

#include "libavutil/mem.h"
#include "avcodec.h"
#include "bytestream.h"
#include "opus.h"
#include "opus_parse.h"
#include "parser.h"

OpusParserContext;

static const uint8_t *parse_opus_ts_header(const uint8_t *start, int *payload_len, int buf_len)
{ … }

/**
 * Find the end of the current frame in the bitstream.
 * @return the position of the first byte of the next frame, or -1
 */
static int opus_find_frame_end(AVCodecParserContext *ctx, AVCodecContext *avctx,
                               const uint8_t *buf, int buf_size, int *header_len)
{ … }

static int opus_parse(AVCodecParserContext *ctx, AVCodecContext *avctx,
                       const uint8_t **poutbuf, int *poutbuf_size,
                       const uint8_t *buf, int buf_size)
{ … }

const AVCodecParser ff_opus_parser = …;