On date Wednesday 2009-11-04 18:20:10 +0100, Stefano Sabatini encoded: > On date Wednesday 2009-11-04 17:21:04 +0200, Oleksandr Bondar encoded: > > Thanks for the response. > > Avoid top-posting on FFmpeg mailing lists, we're trying to resist > against this (predominant) silly way to reply to text messages. > > > When I got something working will put it here. > > > > Have one more question. > > > > Is it possible to use scale and overlay filters with dynamic values of h:w > > for scale and x:y for overlay? > > like it is possible in setpts filter, > > 'setpts=AVTB/25*(N+0.05*sin(N*2*PI/25))' > > Do you mean as a function of PTS or N? > > For the overlay filter that should be possible by extending it, with > the scale filter that's going to be more tricky since then you'll have > a variable output video size, which is currently not managed by > libavfilter.
And thinking harder at it, yes it should be possible to implement a filter cropping a given (eventually variable) area in the input video and scaling it to a fixed output size, for example to implement a Ken Burns effect. Regards. _______________________________________________ FFmpeg-soc mailing list FFmpeg-soc@mplayerhq.hu https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-soc
