[FFmpeg-user] custom video enhancements using ffmpeg

[Roger Pack]

> Thanks for all the suggestions. What if I want to use a simple scene cut
> detector as the above filter ? I see that there is a sc_threshold but I
> think that is used in encoding the stream in general and deciding on when
> to put I-frames in particular. Is there a way to say that I want all the
> frames where the sc_threshold is crossed to be dumped into a jpg ?

AFAIK there's no way today for one filter to talk to another [please
correct me if I'm wrong]
You might be able to use the scene detection filter, then parse its
output and use that: http://ffmpeg.org/trac/ffmpeg/ticket/442