FFmpeg
rawdec.h
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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. */
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. */
36 
37 typedef struct FFRawDemuxerContext {
38  const AVClass *class; /**< Class for private options. */
41 
42 extern const AVOption ff_rawvideo_options[];
43 extern const AVOption ff_raw_options[];
44 
46 
48 
50 
52 
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_RAWVIDEO_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 */
AVOption.
Definition: opt.h:246
char * video_size
String describing video size, set by a private option.
Definition: rawdec.h:32
static AVPacket pkt
Format I/O context.
Definition: avformat.h:1358
int ff_raw_video_read_header(AVFormatContext *s)
Definition: rawdec.c:71
AVOptions.
const AVOption ff_raw_options[]
Definition: rawdec.c:126
const AVOption ff_rawvideo_options[]
Definition: rawdec.c:121
char * pixel_format
Set by a private option.
Definition: rawdec.h:33
int ff_raw_subtitle_read_header(AVFormatContext *s)
Definition: rawdec.c:95
#define s(width, name)
Definition: cbs_vp9.c:257
int ff_raw_data_read_header(AVFormatContext *s)
Definition: rawdec.c:106
Describe the class of an AVClass context structure.
Definition: log.h:67
int ff_raw_audio_read_header(AVFormatContext *s)
Definition: rawdec.c:56
Rational number (pair of numerator and denominator).
Definition: rational.h:58
Main libavformat public API header.
int ff_raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt)
Definition: rawdec.c:35
AVRational framerate
AVRational describing framerate, set by a private option.
Definition: rawdec.h:34
This structure stores compressed data.
Definition: avcodec.h:1456