Pull request:  ffmpeg fix to properly detect video in SageTV recordings (ffmpeg bug #2147)

Xbmc fails to play most of my recorded TV content, due to a bug in ffmpeg which makes it think most of my SageTV recordings have no video.  The bug was fixed upstream, and I would be deeply grateful the fix could be pulled into xbmc.


> commit c071b006436d663b977068f8d23cbc061f40491f
> Author: Michael Niedermayer <michaelni@gmx.at>
> Date:   Mon Jan 21 04:21:56 2013 +0100
>
>     mpeg12demux: Fallback to startcode for stream type identification.
>
>    Fixes Ticket2147
>    Fixes SageTV support
>
>    Based-on patch by Andrew Gallatin
>    Signed-off-by: Michael Niedermayer <michaelni@gmx.at>