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#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include "m_option.h"
#include "stream/stream.h"
#include "demuxer.h"
#include "stheader.h"
#include "libmpcodecs/img_format.h"
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;
const m_option_t demux_rawvideo_opts[] = {
// 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 },
{ "16cif", &size_id, CONF_TYPE_FLAG,0,0,7, NULL },
{ "sif", &size_id, CONF_TYPE_FLAG,0,0,8, NULL },
// format:
{ "format", &format, CONF_TYPE_IMGFMT, 0, 0 , 0, NULL },
// below options are obsolete
{ "i420", &format, CONF_TYPE_FLAG, 0, 0 , IMGFMT_I420, NULL },
{ "yv12", &format, CONF_TYPE_FLAG, 0, 0 , IMGFMT_YV12, NULL },
{ "nv12", &format, CONF_TYPE_FLAG, 0, 0 , IMGFMT_NV12, NULL },
{ "hm12", &format, CONF_TYPE_FLAG, 0, 0 , IMGFMT_HM12, NULL },
{ "yuy2", &format, CONF_TYPE_FLAG, 0, 0 , IMGFMT_YUY2, NULL },
{ "uyvy", &format, CONF_TYPE_FLAG, 0, 0 , IMGFMT_UYVY, 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}
};
static demuxer_t* 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;
case 7: width=1408;height=1152;break;
case 8: width=352; height=240; 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_NV12:
case IMGFMT_HM12:
case IMGFMT_YV12: imgsize=width*height+2*(width>>1)*(height>>1);break;
case IMGFMT_YUY2:
case IMGFMT_UYVY: imgsize=width*height*2;break;
case IMGFMT_Y800:
case IMGFMT_Y8: imgsize=width*height;break;
default:
if (IMGFMT_IS_RGB(format))
imgsize = width * height * ((IMGFMT_RGB_DEPTH(format) + 7) >> 3);
else if (IMGFMT_IS_BGR(format))
imgsize = width * height * ((IMGFMT_BGR_DEPTH(format) + 7) >> 3);
else {
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 demuxer;
}
static int demux_rawvideo_fill_buffer(demuxer_t* demuxer, demux_stream_t *ds) {
sh_video_t* sh = demuxer->video->sh;
off_t pos;
if(demuxer->stream->eof) return 0;
if(ds!=demuxer->video) return 0;
pos = stream_tell(demuxer->stream);
ds_read_packet(ds,demuxer->stream,imgsize,(pos/imgsize)*sh->frametime,pos,0x10);
return 1;
}
static void demux_rawvideo_seek(demuxer_t *demuxer,float rel_seek_secs,float audio_delay,int flags){
stream_t* s = demuxer->stream;
sh_video_t* sh_video = demuxer->video->sh;
off_t pos;
pos = (flags & SEEK_ABSOLUTE) ? demuxer->movi_start : stream_tell(s);
if(flags & SEEK_FACTOR)
pos += ((demuxer->movi_end - demuxer->movi_start)*rel_seek_secs);
else
pos += (rel_seek_secs*sh_video->i_bps);
if(pos < 0) pos = 0;
if(demuxer->movi_end && pos > demuxer->movi_end) pos = (demuxer->movi_end-imgsize);
pos/=imgsize;
stream_seek(s,pos*imgsize);
//sh_video->timer=pos * sh_video->frametime;
demuxer->video->pts = pos * sh_video->frametime;
// printf("demux_rawvideo: streamtell=%d\n",(int)stream_tell(demuxer->stream));
}
const demuxer_desc_t demuxer_desc_rawvideo = {
"Raw video demuxer",
"rawvideo",
"rawvideo",
"?",
"",
DEMUXER_TYPE_RAWVIDEO,
0, // no autodetect
NULL,
demux_rawvideo_fill_buffer,
demux_rawvideo_open,
NULL,
demux_rawvideo_seek,
NULL
};
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