Hi again, Am 15.01.19 um 12:54 schrieb Carl Eugen Hoyos: >>>>>> tbn >>>>> This is the container timebase, 90k for mpeg streams. >>>> For what stands 90k? For 90,000 milli seconds? >>> It stands for a timebase of 1/90000 >> Is it 1/90000 second? > I suspect timebase is a fraction and has no unit but I may be wrong.
Timebase without unit? What does it serve for? If it's 1/90000 h, then it would be equal to 1/25 s, which would perfectly align with the fps 25 of the file. >>> which is the timebase for all mpeg streams (and cannot be changed afaik). >> Do you mean MPEG-2 with "mpeg"? > MPEG program and MPEG transport streams are (also) > defined in the MPEG-2 standard (that also defines > several other things). > >> My MPEG-4 stream has 12800 tbn > Command line and complete, uncut console output missing. I here refer to the output in my post from 2019-01-12 22:32 GMT+01:00 >> i.e. then the video player is able to write 50 half-frames per >> second to the output display, which provides better quality >> than 25 merged progressive frames per second. > Only (old!) CRTs can do this, so I assume this has no > relevance here. You may be right. Technically I don't see an obstacle for a software player to feed the video display buffer with 50 half-frames per second, as most displays refresh rate is at least 50 per sec. > The "idet" filter can do this. I have tried that with: $ ffmpeg -i CYD_atadenoise_H.264_mp3-q4.mp4 -vf idet and get: Trailing options were found on the commandline. At least one output file must be specified. Now I'm confused what to do, as I don't want to create another big file. How is the correct syntax? -Ulf _______________________________________________ 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".
