2016-12-05 17:56 GMT+01:00 Toerless Eckert <[email protected]>: >> > Only mplayer can correctly play back aspect changes with AVI, >> > kodi, ffplay, vlc all just play back with the initial aspect ratio. >> >> The reason may be that aspect ratio change in avi is not well >> specified. > > Yeah.... how do i compare a badly documented Microsoft format that
I suspect that the MS specification of avi does not support aspect ratio change, just MEncoder's implementation. > does support what i want with a probably much better specified > open source format (matroska) that seemingly does not do what i want ;-)) Did you verify that this isn't just a bug in FFmpeg? >> > The PS files created with "-f vob" or "-f dvd" in ffmpeg have about >> > the same size as avi and are correctly played back with AR changes >> > by ffplay, vlc, kodi. The versions of mplayer i tried only plays back >> > mpeg2 video in PS, not h264. Alas, i have some important apps that >> > leverage mplayer. >> >> This should work with -demuxer lavf but it seems that the usual h264 >> timestamp problem hits us. > > http://grouper.ieee.org/groups/1722/contributions/2015/IEEE1722_H264_Timestamps.pdf > ? I forgot: Patch (very) welcome, note that the relevant document, H.222, is not easy to implement though. [...] > I am not aware that any commercial media creates h264 inside MPEG-2 PS As said this is not true (not even that you are not aware). Carl Eugen _______________________________________________ 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".
