On Tue, Mar 09, 2021 at 11:26:49PM +1030, Rodney Baker wrote: > On Tuesday, 9 March 2021 23:17:34 ACDT Peter White wrote: > > On Tue, Mar 09, 2021 at 01:07:41PM +0100, Nicolas George wrote: > > > Peter White (12021-03-09): > > > > ffmpeg -i input.mkv -an -sn -c copy -f null - > > > > > > -c copy tells ffmpeg to dispense with the decoder, which means it does > > > not count frames but packets. Have you tried telling ffprobe to count > > > packets? > > > > I have now, but it returns 'N/A'. Now that I see that, I might have > > tried it way back when, even, and have forgotten about it. > > > > ffprobe -count_packets -select_streams v:0 -show_entries > [...] > > Stream #0:0: Video: hevc (Main 10), yuv420p10le(tv, bt709), 768x432 [SAR > > 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 23.98 tbc (default) Metadata: > > BPS-eng : 1021384 > > DURATION-eng : 00:21:40.716000000 > > NUMBER_OF_FRAMES-eng: 31186 > > Isn't this exactly what you're looking for? > [...]
Yes, in this particular case the frame count was written to the metadata but one cannot rely on that as was established previously. A universal solution is the aim. Plus, I tend not to trust metadata that can be arbitrarily manipulated. Peter _______________________________________________ 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".
