Hi, since openmoko does not support hardware rotation I thought I'd reencode videos for it and rotate them to fit to the 240x320 display mode. This turned out to to be somewhat tricky. In the following I use the shortest debconf9 video I could find as an example:
1) /usr/share/doc/ffmpeg/html/libavfilter.html mentions that a -vfilters option could do rotation. However, despite documentation it does not exist: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=594108 2) trying to read generate ogg/theora with mencoder segfaults: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=594110 3) Finally on the #theora IRC channel I was adviced to use both mencoder and mplayer with an intermediate file. wget http://ftp.acc.umu.se/pub/debian-meetings/2009/debconf9/low/1050_Lightning_talk_Redirecting_require.ogv mencoder 1050_Lightning_talk_Redirecting_require.ogv -oac pcm -ovc lavc -lavcopts vcodec=ffvhuff -vf scale=320:240,rotate=1 -o output.avi ffmpeg -i output.avi -acodec libvorbis output.ogv almost works in debian unstable. The only problem is that some video frames are lost => The audio plays normally but last few seconds of video are not played at all and video generally lacks behind audio. Given the example file above, can anybody come up with a set of commands that work in debian (stable, testing or unstable) and have working av sync? (Please do not suggest me to get potentially non-free stuff from http://debian-multimedia.org/ -- I don't want to rely on software that can not be included in debian if at all possible.) -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/84eidomeb1....@sauna.l.org
