[mythtv-users] flipping between interlaced and progressive source detection

[Andy Burns]

On 20/05/2007 17:43, Scott wrote:

> In the log below I mythtv flipping back and forth between progressive  
> and deinterlace modes during playback 

I see that on *one* DVB-T MUX inthe UK (MUX A which includes channel5)
I've using kernel de-interlace (I'm surprised that this makes the 
picture look better as I have Radeon VGA->RGB SCART cable on a 100Hz CRT 
so my display is interlaced, I'd expected de-interlacing to make 
interlaced material look worse until I tried it).

Sometimes the stream will stay on interlaced for thousands of frames, 
then rapidly switch between interlace/progressive, sometimes swithcing 
several times per second, it /seems/ to happen more during advert 
junctions but that might be subjective. Probably how they manage to 
squeeze so many (too many!) streams into one poor mux.

Myth doesn't seem to mind the switching, I do get backend crashes on 
that mux, but they don't seem to co-incide with the 
interlace/progressive switching.