Am 22.01.2019 um 09:49 schrieb Wolfgang Hugemann <[email protected]>:
>> I may misunderstand but FFmpeg treats all video as frame-based. > > Sorry, I posed the question wrong. I meant that I would like to use a > frame-count-based scale instead of a time-based scale, in the way that a > genuine frame server like AVIsynth does. > >>> * Could I (easily) extract every nth frame from a video (in order to >>> dump the result as JPEGs)? >> See the select or the fps filter or use a low output frame rate (which >> forces frame drops). > > I fear that this would provoke rounding errors, Of course not. > especially with NTSC's > 29,97 fps. To the contrast, AVIsynth's "SelectEvery(5)" is bullet-proof: > It takes every 5th frame (in presentation order), no matter what. > > ... > > I take from your answer that this approach is just impossible with > FFmpeg at the moment. LOL Carl Eugen _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
