Am Di., 2. März 2021 um 20:51 Uhr schrieb Mark Filipak (ffmpeg) <markfili...@bog.us>: > > On 2021-03-02 13:31, Carl Eugen Hoyos wrote: > > Am Di., 2. März 2021 um 17:50 Uhr schrieb Mark Filipak (ffmpeg) > > <markfili...@bog.us>: > >> > >> I've searched the docs one-by-one. I seek a simpler way to repeat a frame. > > > > Increase the frame rate, either with the fps filter or the ffmpeg option > > "-r". > > They differ in their greediness and verbosity on the status line. > > Thank you, Carl Eugen, I have noted that reality. > > Since I've assumed that AVFrame *is* the format of the frames in the filter > pipeline (and therefore int64_t), and based on an assumption that TB is > also 64 bits, I've adopted TB = 1/(720000 ticks/s)...
timebase is not 64bit, I believe this was already mentioned. > ...so, for a 24fps CFR INPUT to a 24fps CFR OUTPUT for example, If your input is cfr and you want cfr output, there should be no reason to mess with timestamps. > ffmpeg -i INPUT -vf > settb=expr=1/720000,setpts=N*30000...setpts=N/24/TB,fps=24 OUTPUT In addition to above, note that setpts is rarely a good idea as it is supposed to break A/V sync. Using the filter several times does not improve the situation. Perhaps you should go back several (dozen) steps: You have already explained that you have little interest in becoming a C programmer (which is 100% reasonable), you therefore should not be interested in the internal representations of FFmpeg (no, you cannot improve them: The people who have written this code most likely understand analog video as good as you but they are light years ahead of you concerning digital video). It is possible you have found other bugs in FFmpeg (many exist and you have already found two or three). If you want us to improve the project, simply post the command line you tested including the complete, uncut console output and explain what you don't like in the output file. (You would have avoided a lot of flames lately...) The fact that you cannot force a timebase when writing to Matroska is not a bug that you have to report. Carl Eugen _______________________________________________ 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".