Hi, Am 13.01.19 um 00:25 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? > which is the timebase > for all mpeg streams (and cannot be changed afaik). Do you mean MPEG-2 with "mpeg"? My MPEG-4 stream has 12800 tbn >> Does 50 tbc mean, that I still have 50 interlaced half-frames per >> second, or why is the codecs timebase 50? > No, it means that the codec timebase is 1/50. > > (The reason that these answers do not really help you > is that the values are not necessarily meant for you, > they typically have more meaning for developers.) > > [...] > >>> libx264 does not support PAFF encoding. >> What is PAFF? > H.264 field-encoding, another method of h.264 interlaced > encoding exists, MBAFF (which is supported by libx264). So if I want to retain the interlacing from the vob file, I should use MBAFF. What is the ffmpeg option for this? Which is the de-interlacing method, libx264 uses by default? I'm interested in that, because I imagine, that it would be better for the quality to retain the interlacing, 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. Does my assumption hold? But unfortunately I do not know, if my video (DVD-R recorded from a VHS cassette) originally was telecined from an analogue celluloid film or was produced directly on video tape (which should be true interlaced). Any idea, how I can detect this? It was a low budget production in 1982. -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".
