[mythtv-users] Video is X frames behind audio dropping frame

[William Powers]

On Sep 28, 2010, at 10:57 AM, Michelle Dupuis <mdupuis at ocg.ca> wrote:

> I have a new ION based box, with filter set to VDPAU NORMAL.  When  
> playing back recorded TV there is obvious dropped frames and the FE  
> log shows the error below.
>
> I have no clue has to start investigating this one....can anyone  
> help?  My CPU is at 25% and the top process is X
>
> 2010-09-28 11:53:16.940 NVP(0): Video is 3.8941 frames behind audio  
> (too slow), dropping frame to catch up.
> 2010-09-28 11:53:16.940 NVP(0): Video is 3.40058 frames behind audio  
> (too slow), dropping frame to catch up.
> 2010-09-28 11:53:17.239 NVP(0): Video is 3.45488 frames behind audio  
> (too slow), dropping frame to catch up.
> 2010-09-28 11:53:17.239 NVP(0): Video is 4.30121 frames behind audio  
> (too slow), dropping frame to catch up.
> 2010-09-28 11:53:17.240 NVP(0): Video is 4.69597 frames behind audio  
> (too slow), dropping frame to catch up.
> 2010-09-28 11:53:17.240 NVP(0): Video is 4.75201 frames behind audio  
> (too slow), dropping frame to catch up.
> 'video_output' mean = '16974.28', std. dev. = '29847.53', fps =  
> '58.91'
> 2010-09-28 11:53:17.240 NVP(0): Video is 4.539 frames behind audio  
> (too slow), dropping frame to catch up.
> 2010-09-28 11:53:17.240 NVP(0): Video is 4.12427 frames behind audio  
> (too slow), dropping frame to catch up.
> 2010-09-28 11:53:17.241 NVP(0): Video is 3.5882 frames behind audio  
> (too slow), dropping frame to catch up.
> 2010-09-28 11:53:17.559 NVP(0): Video is 4.04884 frames behind audio  
> (too slow), dropping frame to catch up.
>
Go to the Wiki article for VDPAU and follow the recommendations  
there.  From my recent experience with a 9300 graphics Mini-ITX  
motherboard, I had to disable the composite extension in X and use the  
VDPAU Slim playback profile to get smooth playback of HDPVR  
recordings. YMMV.