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Reformat documentation for -vsync @var{parameter}.

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Make use of "@table @option" for showing the valid values for the
option.

Originally committed as revision 26385 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefano Sabatini 2011-01-16 12:45:42 +00:00
parent 05503cee00
commit f0e5c1c000
1 changed files with 18 additions and 9 deletions
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doc/ffmpeg.texi
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@ -670,16 +670,25 @@ Repeatedly loop output for formats that support looping such as animated GIF
Thread count.
@item -vsync @var{parameter}
Video sync method.
0 Each frame is passed with its timestamp from the demuxer to the muxer
1 Frames will be duplicated and dropped to achieve exactly the requested
constant framerate.
2 Frames are passed through with their timestamp or dropped so as to prevent
2 frames from having the same timestamp
-1 Chooses between 1 and 2 depending on muxer capabilities. This is the default method.
With -map you can select from
which stream the timestamps should be taken. You can leave either video or
audio unchanged and sync the remaining stream(s) to the unchanged one.
@table @option
@item 0
Each frame is passed with its timestamp from the demuxer to the muxer.
@item 1
Frames will be duplicated and dropped to achieve exactly the requested
constant framerate.
@item 2
Frames are passed through with their timestamp or dropped so as to
prevent 2 frames from having the same timestamp.
@item -1
Chooses between 1 and 2 depending on muxer capabilities. This is the
default method.
@end table
With -map you can select from which stream the timestamps should be
taken. You can leave either video or audio unchanged and sync the
remaining stream(s) to the unchanged one.
@item -async @var{samples_per_second}
Audio sync method. "Stretches/squeezes" the audio stream to match the timestamps,
the parameter is the maximum samples per second by which the audio is changed.