diff options
Diffstat (limited to 'demux/demux_rawvideo.c')
-rw-r--r-- | demux/demux_rawvideo.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/demux/demux_rawvideo.c b/demux/demux_rawvideo.c new file mode 100644 index 0000000000..e84caafd01 --- /dev/null +++ b/demux/demux_rawvideo.c @@ -0,0 +1,172 @@ +/* + * This file is part of MPlayer. + * + * MPlayer is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * MPlayer 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with MPlayer; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#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 +}; |