[Ffmpeg-devel] problems with the ffmpeg theora decoder

Diego Biurrun diego
Wed Jul 6 09:32:06 CEST 2005

On Tue, Jun 28, 2005 at 08:28:24PM +0200, bond wrote:
> i have now extensively test the libavcodec theora decoder (in mplayer) and
> noticed the following problems
> 1) theora-a4_v6-k250-s0_2.ogg
> small artefacts around frames 1000-1200 in the background near the window on
> the right side, where parts of the glas seem to be displayed over the frame
> of the window
> 2) exp_test2.ogg, susie-exp.ogg
> files being created with derf's theora encoder, which uses also theora
> features not being part of vp3 and are not playing at all with libavcodec
> 3) the ogg demuxer of ffmpeg doesnt search till the keyframes only when
> searching and therefore shows missing keyframes artefacts
> 4) non-vp3_huffman-tables.ogg
> the file should contain vorbis audio, but somehow the ogg demuxer doesnt
> find it? mplayers ogg demuxer finds it
> i have uploaded all the samples to incoming/theora

Moved to


More information about the ffmpeg-devel mailing list