libavformat/riff.h

   1 /*
   2  * RIFF codec tags
   3  * copyright (c) 2000 Fabrice Bellard
   4  *
   5  * This file is part of FFmpeg.
   6  *
   7  * FFmpeg is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * FFmpeg is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with FFmpeg; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 /**
  23  * @file libavformat/riff.h
  24  * internal header for RIFF based (de)muxers
  25  * do NOT include this in end user applications
  26  */
  27
  28 #ifndef AVFORMAT_RIFF_H
  29 #define AVFORMAT_RIFF_H
  30
  31 #include "libavcodec/avcodec.h"
  32 #include "avio.h"
  33
  34 int64_t ff_start_tag(ByteIOContext *pb, const char *tag);
  35 void ff_end_tag(ByteIOContext *pb, int64_t start);
  36
  37 typedef struct AVCodecTag {
  38     int id;
  39     unsigned int tag;
  40 } AVCodecTag;
  41
  42 void ff_put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf);
  43 int ff_put_wav_header(ByteIOContext *pb, AVCodecContext *enc);
  44 enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps);
  45 void ff_get_wav_header(ByteIOContext *pb, AVCodecContext *codec, int size);
  46
  47 extern const AVCodecTag ff_codec_bmp_tags[];
  48 extern const AVCodecTag ff_codec_wav_tags[];
  49
  50 unsigned int ff_codec_get_tag(const AVCodecTag *tags, int id);
  51 enum CodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag);
  52 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale);
  53
  54 #endif /* AVFORMAT_RIFF_H */