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| author | Stefano Sabatini <stefasab@gmail.com> | 2012-08-23 11:52:45 +0200 |
|---|---|---|
| committer | Stefano Sabatini <stefasab@gmail.com> | 2012-08-24 12:54:45 +0200 |
| commit | c45178cf5bf94189c7d275be7a99d9e4f8f16009 (patch) | |
| tree | 2b2d369c3b853c267f8050b2d497142e36ae4bc4 /doc/filters.texi | |
| parent | 0043db29676fee12290e70e0097810292d3bc40c (diff) | |
| download | ffmpeg-c45178cf5bf94189c7d275be7a99d9e4f8f16009.tar.gz | |
doc/filters: itemize examples for *setpts filters
Diffstat (limited to 'doc/filters.texi')
| -rw-r--r-- | doc/filters.texi | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 534526cfd6..c2b65a9fad 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -4147,27 +4147,45 @@ previous output PTS @end table -Some examples follow: +@subsection Examples +@itemize +@item +Start counting PTS from zero @example -# start counting PTS from zero setpts=PTS-STARTPTS +@end example -# fast motion +@item +Apply fast motion effect: +@example setpts=0.5*PTS +@end example -# slow motion +@item +Apply slow motion effect: +@example setpts=2.0*PTS +@end example -# fixed rate 25 fps +@item +Set fixed rate of 25 frames per second: +@example setpts=N/(25*TB) +@end example -# fixed rate 25 fps with some jitter +@item +Set fixed rate 25 fps with some jitter: +@example setpts='1/(25*TB) * (N + 0.05 * sin(N*2*PI/25))' +@end example -# apply an offset of 10 seconds to the input PTS +@item +Apply an offset of 10 seconds to the input PTS: +@example setpts=PTS+10/TB @end example +@end itemize @section settb, asettb |