[mythtv] ffmpeg SWSCALE!

[Richard Dale]

Here's a few screenshots of software scaling (using FFDshow on windows PCs,
not on Linux) and the before and after shots on DVDs:
http://www.htpcnews.com/index.php?option=com_content&task=view&id=132&Itemid
=48&limitstart=4

I'm experimenting with MythVideo's mplayer parameters right now.

By adding:
-sws 9 -vf pp=unsharp=l:c:7x7:5/denoise3d=12:12:12 

To mplayer's parameters this apparently this does software scaling, unsharp
mark sharpening and denoise too.

Cheers,
Richard.