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@ -4147,27 +4147,45 @@ previous output PTS |
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@end table |
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Some examples follow: |
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@subsection Examples |
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@itemize |
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@item |
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Start counting PTS from zero |
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@example |
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# start counting PTS from zero |
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setpts=PTS-STARTPTS |
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@end example |
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# fast motion |
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@item |
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Apply fast motion effect: |
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@example |
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setpts=0.5*PTS |
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@end example |
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# slow motion |
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@item |
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Apply slow motion effect: |
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@example |
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setpts=2.0*PTS |
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@end example |
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# fixed rate 25 fps |
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@item |
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Set fixed rate of 25 frames per second: |
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@example |
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setpts=N/(25*TB) |
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@end example |
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# fixed rate 25 fps with some jitter |
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@item |
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Set fixed rate 25 fps with some jitter: |
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@example |
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setpts='1/(25*TB) * (N + 0.05 * sin(N*2*PI/25))' |
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@end example |
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# apply an offset of 10 seconds to the input PTS |
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@item |
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Apply an offset of 10 seconds to the input PTS: |
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@example |
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setpts=PTS+10/TB |
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@end example |
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@end itemize |
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@section settb, asettb |
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