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author | arpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2003-01-22 23:51:04 +0000 |
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committer | arpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2003-01-22 23:51:04 +0000 |
commit | e819653a236d4f234d2fea2e501abc0b317a6241 (patch) | |
tree | 46a27592f5de853cc2dbe2152dedaaaf5a6dfd22 /libmpdemux/demux_rawvideo.c | |
parent | c16edd2efd00b7bc24c2ab7d0f531e7744617bd9 (diff) | |
download | mpv-e819653a236d4f234d2fea2e501abc0b317a6241.tar.bz2 mpv-e819653a236d4f234d2fea2e501abc0b317a6241.tar.xz |
raw video demuxer, requested by Michael
(try mplayer -rawvideo on:cif mobile.cif)
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9066 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'libmpdemux/demux_rawvideo.c')
-rw-r--r-- | libmpdemux/demux_rawvideo.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/libmpdemux/demux_rawvideo.c b/libmpdemux/demux_rawvideo.c new file mode 100644 index 0000000000..2686e7bfb5 --- /dev/null +++ b/libmpdemux/demux_rawvideo.c @@ -0,0 +1,120 @@ + +#include "config.h" + +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> +#include <string.h> + +#include "../cfgparser.h" + +#include "stream.h" +#include "demuxer.h" +#include "stheader.h" + +#include "../libmpcodecs/img_format.h" + +int use_rawvideo = 0; +static int format = IMGFMT_I420; +static int size_id = 0; +static int width = 0; +static int height = 0; +static float fps = 25; +static int imgsize=0; + +config_t demux_rawvideo_opts[] = { + { "on", &use_rawvideo, CONF_TYPE_FLAG, 0,0, 1, NULL }, + // size: + { "w", &width, CONF_TYPE_INT,CONF_RANGE,1,8192, NULL }, + { "h", &height, CONF_TYPE_INT,CONF_RANGE,1,8192, NULL }, + { "sqcif", &size_id, CONF_TYPE_FLAG,0,0,1, NULL }, + { "qcif", &size_id, CONF_TYPE_FLAG,0,0,2, NULL }, + { "cif", &size_id, CONF_TYPE_FLAG,0,0,3, NULL }, + { "4cif", &size_id, CONF_TYPE_FLAG,0,0,4, NULL }, + { "pal", &size_id, CONF_TYPE_FLAG,0,0,5, NULL }, + { "ntsc", &size_id, CONF_TYPE_FLAG,0,0,6, NULL }, + // format: + { "format", &format, CONF_TYPE_INT, 0, 0 , 0, NULL }, + { "y420", &format, CONF_TYPE_FLAG, 0, 0 , IMGFMT_I420, NULL }, + { "yv12", &format, CONF_TYPE_FLAG, 0, 0 , IMGFMT_YV12, NULL }, + { "yuy2", &format, CONF_TYPE_FLAG, 0, 0 , IMGFMT_YUY2, NULL }, + { "y8", &format, CONF_TYPE_FLAG, 0, 0 , IMGFMT_Y8, NULL }, + // misc: + { "fps", &fps, CONF_TYPE_FLOAT,CONF_RANGE,0.001,1000, NULL }, + { "size", &imgsize, CONF_TYPE_INT, CONF_RANGE, 1 , 8192*8192*4, NULL }, + + {NULL, NULL, 0, 0, 0, 0, NULL} +}; + + +int demux_rawvideo_open(demuxer_t* demuxer) { + sh_video_t* sh_video; + + switch(size_id){ + case 1: width=128; height=96; break; + case 2: width=176; height=144; break; + case 3: width=352; height=288; break; + case 4: width=704; height=576; break; + case 5: width=720; height=576; break; + case 6: width=720; height=480; break; + } + if(!width || !height){ + mp_msg(MSGT_DEMUX,MSGL_ERR,"rawvideo: width or height not specified!\n"); + return 0; + } + + if(!imgsize) + switch(format){ + case IMGFMT_I420: + case IMGFMT_IYUV: + case IMGFMT_YV12: imgsize=width*height+2*(width>>1)*(height>>1);break; + case IMGFMT_YUY2: imgsize=width*height*2;break; + case IMGFMT_Y8: imgsize=width*height;break; + default: + mp_msg(MSGT_DEMUX,MSGL_ERR,"rawvideo: img size not specified and unknown format!\n"); + return 0; + } + + sh_video = new_sh_video(demuxer,0); + sh_video->format=format; + sh_video->fps=fps; + sh_video->frametime=1.0/fps; + sh_video->disp_w=width; + sh_video->disp_h=height; + sh_video->i_bps=fps*imgsize; + + demuxer->movi_start = demuxer->stream->start_pos; + demuxer->movi_end = demuxer->stream->end_pos; + + demuxer->video->sh = sh_video; + sh_video->ds = demuxer->video; + + return 1; +} + +int demux_rawvideo_fill_buffer(demuxer_t* demuxer, demux_stream_t *ds) { + + if(demuxer->stream->eof) return 0; + if(ds!=demuxer->video) return 0; + + ds_read_packet(ds,demuxer->stream,imgsize,0,stream_tell(demuxer->stream),0x10); + + return 1; +} + +void demux_rawvideo_seek(demuxer_t *demuxer,float rel_seek_secs,int flags){ + stream_t* s = demuxer->stream; + sh_video_t* sh_video = demuxer->video->sh; + off_t pos; + + pos = (flags & 1) ? demuxer->movi_start : stream_tell(s); + if(flags & 2) + pos += ((demuxer->movi_end - demuxer->movi_start)*rel_seek_secs); + else + pos += (rel_seek_secs*sh_video->i_bps); + + pos/=imgsize; + stream_seek(s,pos*imgsize); + sh_video->timer=pos * sh_video->frametime; +// printf("demux_rawvideo: streamtell=%d\n",(int)stream_tell(demuxer->stream)); +} |