[mythtv-users] VDPAU De-Interlacer broken
O&M Ugarcina
mo.ucina at gmail.com
Fri May 6 11:00:27 UTC 2011
Hello Guys,
I have been having issues with VDPAU de-interlacer lately , and was
wandering if anyone has seen a similar issue . I have fc14 32 bit with
myth .24 using latest stable nvidia drivers 260.19.44 on a gts-450 card
. To summarise it all started after I upgraded myth from a very stable
rev v0.24-199-g5367795 , on this rev everything worked 100% , then when
going to v0.24-231-gc2baf1b I got a strange audio looping-video pausing
effect .
The video would slow down in bursts then speed back up to normal speed
every 10 to 20 seconds , during these slowdown periods audio would loop
and last few words would be repeated a couple of times over , while
audio is repeating video would go on and the two would go out of sync ,
then audio and video would re-sync and play back normally for another 10
to 20 seconds . My normal playback settings are using "VDPAU High
Quality" profile . I changed the profile to "High Quality" which uses
full software decoding only , and the problem went away and the playback
is perfect . However my CPU loading increased dramatically .
Next I updated my installation of myth .24 to rev v0.24-250-g56c54fa to
see if the situation with VDPAU was better . Unfortunately it is still
broken . However I have been doing more testing to narrow down the
circumstances under which the fault manifests itself . What I have found
is that when using the VDPAU high quality profile if I set de-interlacer
to any choice that has 1x in it everything plays perfectly . Once I set
it to anything with 2x in it , then I get the audio looping-video
pausing effect . So at the moment I have selected VDPAU high quality
profile , using Advanced 1x de-interlacer , and playback is perfect .
There must be something in the 2x processing that is broken .
Best Regards
Milorad
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