libavformat/rawdec.h

   1 /*
   2  * RAW demuxers
   3  * Copyright (C) 2007  Aurelien Jacobs <aurel@gnuage.org>
   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 #ifndef AVFORMAT_RAWDEC_H
  23 #define AVFORMAT_RAWDEC_H
  24
  25 #include "avformat.h"
  26 #include "libavutil/log.h"
  27 #include "libavutil/opt.h"
  28
  29 typedef struct FFRawVideoDemuxerContext {
  30     const AVClass *class;     /**< Class for private options. */
  31     int raw_packet_size;
  32     char *video_size;         /**< String describing video size, set by a private option. */
  33     char *pixel_format;       /**< Set by a private option. */
  34     AVRational framerate;     /**< AVRational describing framerate, set by a private option. */
  35 } FFRawVideoDemuxerContext;
  36
  37 typedef struct FFRawDemuxerContext {
  38     const AVClass *class;     /**< Class for private options. */
  39     int raw_packet_size;
  40 } FFRawDemuxerContext;
  41
  42 extern const AVOption ff_rawvideo_options[];
  43 extern const AVOption ff_raw_options[];
  44
  45 int ff_raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt);
  46
  47 int ff_raw_audio_read_header(AVFormatContext *s);
  48
  49 int ff_raw_video_read_header(AVFormatContext *s);
  50
  51 int ff_raw_subtitle_read_header(AVFormatContext *s);
  52
  53 int ff_raw_data_read_header(AVFormatContext *s);
  54
  55 #define FF_RAW_DEMUXER_CLASS(name)\
  56 static const AVClass name ## _demuxer_class = {\
  57     .class_name = #name " demuxer",\
  58     .item_name  = av_default_item_name,\
  59     .option     = ff_raw_options,\
  60     .version    = LIBAVUTIL_VERSION_INT,\
  61 };
  62
  63 #define FF_RAWVIDEO_DEMUXER_CLASS(name)\
  64 static const AVClass name ## _demuxer_class = {\
  65     .class_name = #name " demuxer",\
  66     .item_name  = av_default_item_name,\
  67     .option     = ff_rawvideo_options,\
  68     .version    = LIBAVUTIL_VERSION_INT,\
  69 };
  70
  71 #define FF_DEF_RAWVIDEO_DEMUXER2(shortname, longname, probe, ext, id, flag)\
  72 FF_RAWVIDEO_DEMUXER_CLASS(shortname)\
  73 AVInputFormat ff_ ## shortname ## _demuxer = {\
  74     .name           = #shortname,\
  75     .long_name      = NULL_IF_CONFIG_SMALL(longname),\
  76     .read_probe     = probe,\
  77     .read_header    = ff_raw_video_read_header,\
  78     .read_packet    = ff_raw_read_partial_packet,\
  79     .extensions     = ext,\
  80     .flags          = flag,\
  81     .raw_codec_id   = id,\
  82     .priv_data_size = sizeof(FFRawVideoDemuxerContext),\
  83     .priv_class     = &shortname ## _demuxer_class,\
  84 };
  85
  86 #define FF_DEF_RAWVIDEO_DEMUXER(shortname, longname, probe, ext, id)\
  87 FF_DEF_RAWVIDEO_DEMUXER2(shortname, longname, probe, ext, id, AVFMT_GENERIC_INDEX)
  88
  89 #define FF_RAWSUB_DEMUXER_CLASS(name)\
  90 static const AVClass name ## _demuxer_class = {\
  91     .class_name = #name " demuxer",\
  92     .item_name  = av_default_item_name,\
  93     .option     = ff_raw_options,\
  94     .version    = LIBAVUTIL_VERSION_INT,\
  95 };
  96
  97 #define FF_DEF_RAWSUB_DEMUXER(shortname, longname, probe, ext, id, flag)\
  98 FF_RAWSUB_DEMUXER_CLASS(shortname)\
  99 AVInputFormat ff_ ## shortname ## _demuxer = {\
 100     .name           = #shortname,\
 101     .long_name      = NULL_IF_CONFIG_SMALL(longname),\
 102     .read_probe     = probe,\
 103     .read_header    = ff_raw_subtitle_read_header,\
 104     .read_packet    = ff_raw_read_partial_packet,\
 105     .extensions     = ext,\
 106     .flags          = flag,\
 107     .raw_codec_id   = id,\
 108     .priv_data_size = sizeof(FFRawDemuxerContext),\
 109     .priv_class     = &shortname ## _demuxer_class,\
 110 };
 111
 112 #endif /* AVFORMAT_RAWDEC_H */