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 */ 113