[mythtv] hdtv reorg, crc checking

[Doug Larrick]

On Tue, 3 Feb 2004, Daniel Thor Kristjansson wrote:
> >
> > Thanks, but that is mostly the work of Jason Hoos and Doug Larrick.
> 
> Yes I know, but they only have so much time.  It is nice to
> have another person improving the system!

I agree.  My time has also dropped off recently due to some (happy)  
family matters.

It also means more eyes to check over changes to the code.

My current (slow) project is to implement a 'bob' deinterlace filter,  
which shows each field sequentially (at double the frame rate).  This  
is ideal for those of us with CRT HDTV's which would do this processing  
internally anyway when presented with a proper interlaced 1080i stream.

The problem I'm seeing may be related to the slow OSD issue (or maybe  
not).  It seems that it takes the video card a considerable amount of  
time to display a 1920x1080 frame (can't imagine why :-) ), potentially  
longer than NuppelVideoPlayer's sync code is allowing.  This problem  
causes unsmooth motion (uneven frame cadence), which is on the border  
of acceptable at 30 fps (normal 1080i), but really bad at 60 fps (after  
bob deinterlacing).  I just need to find the time to do some more  
instrumenting of the code.

-Doug
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