[mythtv] New MPEG2 commercial-cut code ready for testing

[Cory Papenfuss]

> mpeg2fix-0.10 works great, no infinite loops, no segfaults.  Just 
> QMAT_SHIFTs.  I'll check the quality on the resultant cuts later today for 
> blockiness or other artifacts.  Thanks for all your work so far!

 	I checked 0.10, and you were right... the fix for the error with
"Need to insert 7394 frames > max allowed: 20" is no longer there.

 	The "blockiness" is still present, though.  Not really blockiness 
as it is frame in != frame out.  The .yuv files look like the original. 
The I-frame inserted looks like it's encoded differently... like without 
interlacing, and coarser quantization.  I tried changing the  c->qmax = 1 
but had not discernable difference.

 	Still have the
"Warning, QMAT_SHIFT is larger then 21, overflows possible" as well.

-Cory


-- 

*************************************************************************
* Cory Papenfuss                                                        *
* Electrical Engineering candidate Ph.D. graduate student               *
* Virginia Polytechnic Institute and State University                   *
*************************************************************************