[MEncoder-users] Output variable framerate?

Guillaume POIRIER poirierg at gmail.com
Sat Jan 21 19:04:47 CET 2006


On 1/21/06, Pierre Thibault <thibault at physics.cornell.edu> wrote:
> Hello,
> I have a video (ripped from DVD) that contains two types of scenes:
> genuine 30fps interlaced scenes and 24fps scenes telecined to 30fps.
> When I use -vf pullup with -ofps 29.97, mencoder does a great job at
> removing all the interlacing artifacts in both types of scenes, but
> generates one extra frame every other 5 in the telecined case, giving
> a jerky output. When instead I use -vf pullup with -ofps 24, the 30fps
> scenes become jerky because of the frames dropped. So, ideally, I
> would like to encode in a variable framerate, going from 30fps to
> 24fps, depending on the scene. Is there a way to inform mencoder to do
> such a thing? For instance, I could first run  -vf pullup -ofps 29.97,
> then another run when mencoder detects patterns of duplicate frames to
> infer the lower framerate in the scenes where it is the case.
> Thank you for any information you could give me about that!

MEncoder can't currently do what you're after.


Life is pleasant. Death is peaceful. It's the transition that's troublesome.
    Isaac Asimov (1920 - 1992)

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