Convert the video to specified constant frame rate by duplicating or dropping frames as necessary.
This filter accepts the following named parameters:
- fps
-
Desired output frame rate. The default is
25. - round
-
Rounding method.
Possible values are:
- zero
-
zero round towards 0
- inf
-
round away from 0
- down
-
round towards -infinity
- up
-
round towards +infinity
- near
-
round to nearest
The default is
near.
Alternatively, the options can be specified as a flat string: fps[:round].
See also the setpts filter.
Examples
-
A typical usage in order to set the fps to 25:
fps=fps=25
-
Sets the fps to 24, using abbreviation and rounding method to round to nearest:
fps=fps=film:round=near