2017-01-30 9:51 GMT+11:00 YIRAN LI <[email protected]>: > > > 2017-01-24 15:54 GMT+11:00 YIRAN LI <[email protected]>: > >> >> >> 2017-01-24 10:57 GMT+11:00 Carl Eugen Hoyos <[email protected]>: >> >>> 2017-01-23 18:31 GMT+01:00 John Stebbins <[email protected]>: >>> > What I know about muxers is: >>> > >>> > MP4,MOV - yes >>> >>> Just to make sure: >>> libavformat does not support vfr in mov (but avi works fine) >>> >>> Hi Carl, >> >> This is the mov file I generated with ffmpeg-2.2.1 which is a quite old >> version. https://dl.dropboxusercontent.com/u/89678527/30.mov >> >> The frames I send to av_write_frame is in total 1 min long. 30 fps in >> first 1/3 min, 30*3/4 fps in 2nd 1/3 min, 30 * 1/2 fps in 3rd 1/3 min. >> >> While you say libavformat doesn't support vfr in mov, that file plays >> quite well. Could you have a look at the file to see if there's any problem? >> >> Thanks >> > > Hi Carl, > > Could you elaborate how/why ffmpeg's implementation of mov is unable to > produce valid vfr videos because we do need to support vfr output via > ffmpeg. > > Thanks >
Hi Carl, I found this in the mail list. Is this still the reason for possible problem in MP4 vfr. Does it mean as long as I guarantee frame time stamps starts from 0 and are monotonic increasing then the generated mov/mp4 will be good for all players and editors? Thanks > > >> >> Please remember to not top-post here, it is considered rude. >>> >>> Carl Eugen >>> _______________________________________________ >>> Libav-user mailing list >>> [email protected] >>> http://ffmpeg.org/mailman/listinfo/libav-user >>> >> >> >
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