[FFmpeg-devel] [RFC] better ogg seeking, keyframes only

Reimar Döffinger Reimar.Doeffinger
Mon Dec 1 10:42:42 CET 2008

On Mon, Dec 01, 2008 at 10:17:20AM +0100, Reimar D?ffinger wrote:
> For me this perfectly fixes seeking for
> http://mirror.bigbuckbunny.de/peach/bigbuckbunny_movies/big_buck_bunny_1080p_stereo.ogg ,
> at least when using "mplayer -demuxer lavf -vc fftheora" (it is very
> slow though).

Except for one part of the file near the end it also fixes seeking with
http://samples.mplayerhq.hu/ogg/bgc.sub.dub.ogm (maybe a frame
was incorrectly marked as keyframe by the muxer?),
and http://samples.mplayerhq.hu/ogg/basicinstinct.ogm seems to work just
fine, too.
Those are not using theora though...
Of the files in http://samples.mplayerhq.hu/ogg/Theora/
only http://samples.mplayerhq.hu/ogg/Theora/theora-a4_v6-k250-s0_2.ogg
plays at all, and indeed it does not work there.
On the other hand, e.g.
clearly has errors in both cases but never prints a "first frame is not
keyframe" warning.
Seriously, how tf is one supposed to fix anything if things are
obviously broken in every possible way everywhere already...

Reimar D?ffinger

More information about the ffmpeg-devel mailing list