Is working fine. I'm working on a video that's a basically a slideshow of images morphing through different steps. frame 1: step 1 frame +8: step 2 +7 frames: step 3 +6: step 4 +8: step 5 .. +7: step n
So the number of frames between animation steps is variable, randomly, with a media of 7. If I put: "pick a frame every 7", the resulting extracted frames are "jagged", with non-uniform morphing between them. As you may imagine, I have no experience on codec and video in general. Is there any filter that fly through frames and extract only a frame if it's different from the previous? thanks Il giorno ven 26 apr 2019 alle ore 15:15 Moritz Barsnick <[email protected]> ha scritto: > On Fri, Apr 26, 2019 at 14:54:07 +0200, francesco piasentini wrote: > > Thanks Moritz! > > it worked out very well: > > Nice! > > > .\ffmpeg -i input.wmv -ss 00:00:12.000 -vf select='not(mod(n\,7))' -vsync > > vfr -compression_algo raw -pix_fmt rgb24 output.tiff -hide_banner > > > > is there the possibility to have a grayscale 8bit output? > > Sure. You can just change the "-pix_fmt" argument to "gray", that will > create 8 bit gray, and it will be handled properly by the tiff muxer. > > You can see all available "pixel formats" by: > > $ ffmpeg -pix_fmts > (Not every output codec/format supports every "pixel format", of > course.) > > Moritz > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
