Man / CODEC固有オプション / -mpegopts
2010-03-09 (火) 11:40:26更新
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MPEG muxer (-mpegopts)

The MPEG muxer can generate 5 types of streams, each of which has reasonable default parameters that the user can override. Generally, when generating MPEG files, it is advisable to disable MEncoder's frame-skip code (see -noskip, -mc as well as the harddup and softskip video filters).

format=<mpeg1 | mpeg2 | xvcd | xsvcd | dvd>

stream format (default: mpeg2)

size=<up to 65535>

Pack size in bytes, do not change unless you know exactly what you are doing (default: 2048).

muxrate=<int>

Nominal muxrate in kbit/s used in the pack headers (default: 1800 kb/s). Will be updated as necessary in the case of 'format=mpeg1' or 'mpeg2'.

tsaf

Sets timestamps on all frames, if possible.

(no)reorder

Enables the frame reordering code, that stores frames in decoding (rather than display) order (de- fault: disabled). Use it only if you believe the video frames in the original stream were stored in- correctly. Works only with MPEG-1/2 video.

init_vpts=<100-700>

initial video pts, in milliseconds (default: 200)

init_apts=<100-700>

initial audio pts, in milliseconds (default: 200)

vdelay=<1-32760>

Initial video delay time, in milliseconds (default: 0), use it if you want to delay video with respect to audio.

drop

When used with init_adelay the muxer drops the part of audio that was anticipated.

vwidth, vheight=<1-4095>

Set the video width and height when video is MPEG-1/2.

vpswidth, vpsheight=<1-4095>

Set pan and scan video width and height when video is MPEG-2.

vaspect=<1 | 4/3 | 16/9 | 221/100>

Sets the aspect ratio for MPEG-1/2 video.

vbitrate=<int>

Sets the video bitrate in kbit/s for MPEG-1/2 video.

vframerate=<24000/1001 | 24 | 25 | 30000/1001 | 30 | 50 | 60000/1001 | 60 >

Sets the framerate for MPEG-1/2 video. This option will be ignored if used with the telecine option.

telecine

Enables soft telecine mode: the muxer will trick the video stream so as to make it look like encoded at 30000/1001 or 30 fps; it only works with MPEG-2 video when the output framerate, eventually con- verted with -ofps, is either 24000/1001 or 24 fps. Any other framerate is incompatible with this op- tion.






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