[MPlayer-dev-eng] [patch] backports/fixes from uoti demux_mkv.c for comp_algo==3

[Reimar Döffinger]

On Fri, Aug 13, 2010 at 12:27:13PM +0200, Aurelien Jacobs wrote:
> demux_mkv.c is full of potential mem leak, integer overflow, null
> pointer deference and so on.
> Fixing them all would be quite some work (IMHO not worth at all).
> Fixing just one is not much helpfull...

I think he fixed quite a few issues, IMO it's a good idea to do,
also because unfortunately some distributions still ship with
old code where
1) demux_mkv is the default
2) libavformat is too old for -demuxer lavf to be usable.