FFmpeg/libavformat/rawvideodec.c
Michael Niedermayer b5da7d4c1a Merge remote-tracking branch 'qatar/master'
* qatar/master:
  avformat: Drop pointless "format" from container long names
  swscale: bury one more piece of inline asm under HAVE_INLINE_ASM.
  wv: K&R formatting cosmetics
  configure: Add missing descriptions to help output
  h264_ps: declare array of colorspace strings on its own line.
  fate: amix: specify f32 sample format for comparison
  tiny_psnr: support 32-bit float samples
  eamad/eatgq/eatqi: call special EA IDCT directly
  eamad: remove use of MpegEncContext
  mpegvideo: remove unnecessary inclusions of faandct.h
  af_asyncts: avoid overflow in out_size with large delta values
  af_asyncts: add first_pts option

Conflicts:
	configure
	libavcodec/eamad.c
	libavcodec/h264_ps.c
	libavformat/crcenc.c
	libavformat/ffmdec.c
	libavformat/ffmenc.c
	libavformat/framecrcenc.c
	libavformat/md5enc.c
	libavformat/nutdec.c
	libavformat/rawenc.c
	libavformat/yuv4mpeg.c
	tests/tiny_psnr.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-30 23:28:31 +02:00

74 lines
2.5 KiB
C

/*
* RAW video demuxer
* Copyright (c) 2001 Fabrice Bellard
*
* 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
*/
#include "avformat.h"
#include "rawdec.h"
static int rawvideo_read_packet(AVFormatContext *s, AVPacket *pkt)
{
int packet_size, ret, width, height;
AVStream *st = s->streams[0];
width = st->codec->width;
height = st->codec->height;
packet_size = avpicture_get_size(st->codec->pix_fmt, width, height);
if (packet_size < 0)
return -1;
ret= av_get_packet(s->pb, pkt, packet_size);
pkt->pts=
pkt->dts= pkt->pos / packet_size;
pkt->stream_index = 0;
if (ret < 0)
return ret;
return 0;
}
#define OFFSET(x) offsetof(FFRawVideoDemuxerContext, x)
#define DEC AV_OPT_FLAG_DECODING_PARAM
static const AVOption rawvideo_options[] = {
{ "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
{ "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "yuv420p"}, 0, 0, DEC },
{ "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, DEC },
{ NULL },
};
static const AVClass rawvideo_demuxer_class = {
.class_name = "rawvideo demuxer",
.item_name = av_default_item_name,
.option = rawvideo_options,
.version = LIBAVUTIL_VERSION_INT,
};
AVInputFormat ff_rawvideo_demuxer = {
.name = "rawvideo",
.long_name = NULL_IF_CONFIG_SMALL("raw video"),
.priv_data_size = sizeof(FFRawVideoDemuxerContext),
.read_header = ff_raw_read_header,
.read_packet = rawvideo_read_packet,
.flags = AVFMT_GENERIC_INDEX,
.extensions = "yuv,cif,qcif,rgb",
.raw_codec_id = CODEC_ID_RAWVIDEO,
.priv_class = &rawvideo_demuxer_class,
};