[mythtv] Incessant flip/flop of deinterlacer in svn

[Dave]

Hi devs,

I know this has been discussed forever but i think more and more 
broadcasters are transmitting mixed frames to conserve bandwidth leading 
to spamming in mythtv logs (ok, so i can turn verbosity down) when the 
deinterlacer is turned on and off constantly:

2009-09-15 01:11:13.064 NVP(1): progressive frame seen after 4 
interlaced  frames
2009-09-15 01:11:13.145 Set video sync frame interval to 40000
2009-09-15 01:11:13.147 Disabled deinterlacing
2009-09-15 01:11:14.764 NVP(1): interlaced frame seen after 43 
progressive frames
2009-09-15 01:11:14.766 Set video sync frame interval to 40000
2009-09-15 01:11:14.766 Enabled deinterlacing
2009-09-15 01:11:14.945 NVP(1): progressive frame seen after 6 
interlaced  frames
2009-09-15 01:11:15.024 Set video sync frame interval to 40000
2009-09-15 01:11:15.027 Disabled deinterlacing
2009-09-15 01:11:15.084 NVP(1): interlaced frame seen after 4 
progressive frames
2009-09-15 01:11:15.086 Set video sync frame interval to 40000
2009-09-15 01:11:15.086 Enabled deinterlacing
2009-09-15 01:11:15.704 NVP(1): progressive frame seen after 17 
interlaced  frames
2009-09-15 01:11:15.784 Set video sync frame interval to 40000
2009-09-15 01:11:15.787 Disabled deinterlacing
2009-09-15 01:11:15.924 NVP(1): interlaced frame seen after 6 
progressive frames
2009-09-15 01:11:15.926 Set video sync frame interval to 40000
2009-09-15 01:11:15.926 Enabled deinterlacing
2009-09-15 01:11:16.184 NVP(1): progressive frame seen after 8 
interlaced  frames
2009-09-15 01:11:16.265 Set video sync frame interval to 40000
2009-09-15 01:11:16.267 Disabled deinterlacing
'video_output' mean = '41595.12', std. dev. = '12940.72', fps = '24.04'
2009-09-15 01:11:16.644 NVP(1): interlaced frame seen after 12 
progressive frames
2009-09-15 01:11:16.646 Set video sync frame interval to 40000
2009-09-15 01:11:16.646 Enabled deinterlacing


As there seems to be no fix for this except by manually (not good for 
WAF) turning progressive detection off via the menu, i'm happy to submit 
some sort of temporary bandaid to turn off detection if the rate of 
toggling exceeds a certain threshold within a 10s period (or something 
like that). This seems to be happening on more and more channels and 
becoming somewhat an irritation with jerky motion making me and the 
family dizzy.

Have i missed some post which tells me how to fix this or am i 
approaching this the wrong way ? Any comments welcome.

Thanks
D