aac5773f
 hucm
功能基本完成，接口待打磨
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/*
* RAW demuxers
* Copyright (C) 2007 Aurelien Jacobs <aurel@gnuage.org>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFORMAT_RAWDEC_H
#define AVFORMAT_RAWDEC_H
#include "avformat.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
typedef struct FFRawVideoDemuxerContext {
const AVClass *class; /**< Class for private options. */
int raw_packet_size;
char *video_size; /**< String describing video size, set by a private option. */
char *pixel_format; /**< Set by a private option. */
AVRational framerate; /**< AVRational describing framerate, set by a private option. */
} FFRawVideoDemuxerContext;
typedef struct FFRawDemuxerContext {
const AVClass *class; /**< Class for private options. */
int raw_packet_size;
} FFRawDemuxerContext;
extern const AVOption ff_rawvideo_options[];
extern const AVOption ff_raw_options[];
int ff_raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt);
int ff_raw_audio_read_header(AVFormatContext *s);
int ff_raw_video_read_header(AVFormatContext *s);
int ff_raw_subtitle_read_header(AVFormatContext *s);
int ff_raw_data_read_header(AVFormatContext *s);
#define FF_RAW_DEMUXER_CLASS(name)\
static const AVClass name ## _demuxer_class = {\
.class_name = #name " demuxer",\
.item_name = av_default_item_name,\
.option = ff_raw_options,\
.version = LIBAVUTIL_VERSION_INT,\
};
#define FF_RAWVIDEO_DEMUXER_CLASS(name)\
static const AVClass name ## _demuxer_class = {\
.class_name = #name " demuxer",\
.item_name = av_default_item_name,\
.option = ff_rawvideo_options,\
.version = LIBAVUTIL_VERSION_INT,\
};
#define FF_DEF_RAWVIDEO_DEMUXER2(shortname, longname, probe, ext, id, flag)\
FF_RAWVIDEO_DEMUXER_CLASS(shortname)\
AVInputFormat ff_ ## shortname ## _demuxer = {\
.name = #shortname,\
.long_name = NULL_IF_CONFIG_SMALL(longname),\
.read_probe = probe,\
.read_header = ff_raw_video_read_header,\
.read_packet = ff_raw_read_partial_packet,\
.extensions = ext,\
.flags = flag,\
.raw_codec_id = id,\
.priv_data_size = sizeof(FFRawVideoDemuxerContext),\
.priv_class = &shortname ## _demuxer_class,\
};
#define FF_DEF_RAWVIDEO_DEMUXER(shortname, longname, probe, ext, id)\
FF_DEF_RAWVIDEO_DEMUXER2(shortname, longname, probe, ext, id, AVFMT_GENERIC_INDEX)
#define FF_RAWSUB_DEMUXER_CLASS(name)\
static const AVClass name ## _demuxer_class = {\
.class_name = #name " demuxer",\
.item_name = av_default_item_name,\
.option = ff_raw_options,\
.version = LIBAVUTIL_VERSION_INT,\
};
#define FF_DEF_RAWSUB_DEMUXER(shortname, longname, probe, ext, id, flag)\
FF_RAWVIDEO_DEMUXER_CLASS(shortname)\
AVInputFormat ff_ ## shortname ## _demuxer = {\
.name = #shortname,\
.long_name = NULL_IF_CONFIG_SMALL(longname),\
.read_probe = probe,\
.read_header = ff_raw_subtitle_read_header,\
.read_packet = ff_raw_read_partial_packet,\
.extensions = ext,\
.flags = flag,\
.raw_codec_id = id,\
.priv_data_size = sizeof(FFRawDemuxerContext),\
.priv_class = &shortname ## _demuxer_class,\
};
#endif /* AVFORMAT_RAWDEC_H */
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