riff.h 1.81 KB
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/*
 * RIFF codec tags
 * copyright (c) 2000 Fabrice Bellard
 *
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 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * 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
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

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/**
 * @file riff.h
 * internal header for RIFF based (de)muxers
 * do NOT include this in end user applications
 */

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#ifndef AVFORMAT_RIFF_H
#define AVFORMAT_RIFF_H
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#include "libavcodec/avcodec.h"
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#include "avio.h"

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offset_t start_tag(ByteIOContext *pb, const char *tag);
void end_tag(ByteIOContext *pb, offset_t start);

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typedef struct AVCodecTag {
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    int id;
    unsigned int tag;
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} AVCodecTag;
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void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf);
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int put_wav_header(ByteIOContext *pb, AVCodecContext *enc);
int wav_codec_get_id(unsigned int tag, int bps);
void get_wav_header(ByteIOContext *pb, AVCodecContext *codec, int size);

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extern const AVCodecTag codec_bmp_tags[];
extern const AVCodecTag codec_wav_tags[];
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unsigned int codec_get_tag(const AVCodecTag *tags, int id);
enum CodecID codec_get_id(const AVCodecTag *tags, unsigned int tag);
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void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale);

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#endif /* AVFORMAT_RIFF_H */