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libavformat/riff.h

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00001 /*
00002  * RIFF codec tags
00003  * copyright (c) 2000 Fabrice Bellard
00004  *
00005  * This file is part of FFmpeg.
00006  *
00007  * FFmpeg is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or (at your option) any later version.
00011  *
00012  * FFmpeg is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with FFmpeg; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00020  */
00021 
00028 #ifndef AVFORMAT_RIFF_H
00029 #define AVFORMAT_RIFF_H
00030 
00031 #include "libavcodec/avcodec.h"
00032 #include "avio.h"
00033 
00034 int64_t ff_start_tag(ByteIOContext *pb, const char *tag);
00035 void ff_end_tag(ByteIOContext *pb, int64_t start);
00036 
00037 typedef struct AVCodecTag {
00038     enum CodecID id;
00039     unsigned int tag;
00040 } AVCodecTag;
00041 
00042 void ff_put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf);
00043 int ff_put_wav_header(ByteIOContext *pb, AVCodecContext *enc);
00044 enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps);
00045 void ff_get_wav_header(ByteIOContext *pb, AVCodecContext *codec, int size);
00046 
00047 extern const AVCodecTag ff_codec_bmp_tags[];
00048 extern const AVCodecTag ff_codec_wav_tags[];
00049 
00050 unsigned int ff_codec_get_tag(const AVCodecTag *tags, int id);
00051 enum CodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag);
00052 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale);
00053 
00054 #endif /* AVFORMAT_RIFF_H */

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