[FFmpeg-devel] [PATCH] Fix VC1 "Incomplete extradata" for mkv files generated by eac3to

Kostya kostya.shishkov
Mon Oct 5 17:39:54 CEST 2009

On Mon, Oct 05, 2009 at 10:03:49PM +1100, Andrew Dennison wrote:
> Some mkv files with VC-1 fail to play in mplayer reporting "Incomplete
> extradata". Some investigation indicated the extradata was one byte
> longer in the mkv file compared to the original HD-DVD .evo. It
> appears that the extradata had a leading byte, equivalent to the size
> byte of WVC1 however it was 0 and thus not skipped by the current
> code.
> With this simple patch against curent mplayer svn the original .evo
> and converted .mkv both play. Conversion was performed with eac3to.

In principle patch looks ok but can you provide a sample?
> Please cc me as I'm not subscribed.
> Andrew

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