Hi Carl, Thanks for your answer.
> Your video does not contain a scene change;-( Ouch! Perhaps, I misunderstood "scene change". It is a test surveillance camera. So mostly no change. I wanted to get images when people passed by. > The following does approximately what you want > but I am not sure if the select filter is > appropriate at all: > -vf select='gt(scene\,0.03)' I see. Then, by lowering the threshold, I would get, at least, some images. > You could also test mpdecimate with very high > custom values, see: > https://ffmpeg.org/ffmpeg-filters.html#mpdecimate Thanks. I will try both. - Takenori On Thu, Jan 7, 2016 at 6:09 PM, Carl Eugen Hoyos <[email protected]> wrote: > Takenori Sato <tsato <at> cloudian.com> writes: > >> I tried to get scene changes with the following >> command, but failed to extract any scenes. > > Your video does not contain a scene change;-( > > The following does approximately what you want > but I am not sure if the select filter is > appropriate at all: > -vf select='gt(scene\,0.03)' > You could also test mpdecimate with very high > custom values, see: > https://ffmpeg.org/ffmpeg-filters.html#mpdecimate > > Carl Eugen > > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
