Fixes for FFMpeg or MPlayer AC3 audio

[Vallimar]

For anyone who has compiled their own recent versions of either FFMpeg or MPlayer knows, the AC3
audio is a problem when using MEncoder. The reason for this is that FFMpeg switched to a planar audio
format awhile ago but MPlayer did not support it up until just over a month ago. I had been reverting the
code in ffmpeg for the last few versions to work around this problem but earlier today I did some testing
of backporting the fix(es) in MPlayer svn to an earlier working checkout. If you want to try these out for
yourself, pick one and go with it. Only use one or the other, they will not work together at the same time.

The FFMpeg patch should work with all recent versions, 1.1 -> 2.0. I've been using it on 2.0 and 2.01 as
recently as today. The last known good checkout date for MPlayer is 2013-08-11. After that you will have
to use a git checkout of FFMpeg in order to compile, but even then, recent versions haven't worked with UMS
for me, so I would stick to the 8/11 or an earlier checkout.

The MPlayer patch has not had extensive testing as I only threw it together a couple hours ago, but audio
appeared to be working fine on the several anime mkv's I sampled at random.

[DeFlanko]

Nice Vallimar!

Is this only for the Linux OS?

[Vallimar]

Nice Vallimar!

Is this only for the Linux OS?

Well, the patches are not Linux specific, you can apply them and compile under Windows also and should work the same.