Carl Eugen Hoyos <ceffm...@gmail.com> writes: > Am Sa., 12. Nov. 2022 um 13:57 Uhr schrieb Cecil Westerhof via > ffmpeg-user <ffmpeg-user@ffmpeg.org>: >> >> Michael Koch <astroelectro...@t-online.de> writes: >> >> > Am 12.11.2022 um 12:39 schrieb Cecil Westerhof via ffmpeg-user: >> >> I have a few videos that have a 50 fps. But the computer I am playing >> >> them on cannot handle that properly. Can I use ffmpeg to change the >> >> fps to 25? While still having the same length. >> >> >> > >> > sure, that's easy: >> > ffmpeg -i in.mp4 -r 25 out.mp4 >> >> That really is easy. :-D >> >> I should add a '-preset veryfast'. That makes it go about three times >> as fast (on my system). >> >> But that still takes a lot of time. Maybe I ask something stupid, but >> would it be possible to drop every other frame and copy the rest? > > Unfortunately not if your input is h264, that is technically not possible.
That will be the case with most of them. :'-( But it is mostly a problem with videos I download from YouTube. To circumvent this problem I can just use: bestvideo[fps<=30] -- Cecil Westerhof Senior Software Engineer LinkedIn: http://www.linkedin.com/in/cecilwesterhof _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".