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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 |