I need a simple cli tool to rotate mp4 video.
jakub_lach at mailplus.pl
Tue Oct 30 22:31:38 UTC 2012
Thanks, I'm was already playing with mencoder, but I had no luck with it;
either I was destroying/misaligning audio track or loosing video quality.
(or encoding raw with 54x size increase).
I have more success with ffmpeg, e.g.
$ ffmpeg -i A.mp4 -vf "transpose=1" -r 30 -sameq -acodec copy B.mp4
Is _almost_ ideal, apart from x1.5 increase in size... playing with fps does
change it too.
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