[mythtv-users] NVP: Video is 30 frames behind audio (too slow), dropping frame to catch up

[Mark Hutchinson]

All done
I still have dropped frames, poor quality video and sound as a result.
Tons of this in the mythfrontend log:
2008-02-08 16:59:05.808 NVP: Video is 30 frames ahead of audio,
			doubling video frame interval to slow down.
2008-02-08 16:59:05.875 NVP: Video is 30 frames ahead of audio,
			doubling video frame interval to slow down.
2008-02-08 16:59:05.942 NVP: Video is 30 frames ahead of audio,
			doubling video frame interval to slow down.
2008-02-08 16:59:06.008 NVP: Video is 30 frames ahead of audio,
			doubling video frame interval to slow down.
2008-02-08 16:59:06.075 NVP: Video is 30 frames ahead of audio,
			doubling video frame interval to slow down.
2008-02-08 16:59:06.142 NVP: Video is 30 frames ahead of audio,
			doubling video frame interval to slow down.
2008-02-08 16:59:06.143 WriteAudio: buffer underrun

On 8-Feb-08, at 4:51 PM, Mircea Marghidanu wrote:

> Dont know if it will fix it or not, but you could try the following:
>
> . Enable the "use realtime priority threads" or something like that  
> option
> . Run the frontend with SUID root (sudo chmod +s /usr/bin/ 
> mythfrontend)
> . add Option "UseEvents" "True" to your xorg.conf just under the  
> nvidia
> stuff (Driver "Nvidia", etc)
>
> Hope it helps...
>
>
> Mark Hutchinson wrote:
>> Time for a fresh thread.
>> Here is a verbose log from my frontend.
>> I am getting dropped frames, and resulting poor video and sound.
>> NVidia 8600, SVN, Firewire DCT6200 capture, SPDIF working  
>> with .asoundrc
>> Core2duo 6300 (1.86ghz ), Raptor 32 gig with OS and database, 500 Gig
>> SATA with /video for recordings etc....
>>
>> Why all the dropping frames?
>>
>> Really need to get this fixed, anyone see any problems?
>>
>> Log attached.  Lots of removed dropped messages to save space on  
>> the log
>>
>>
>>
>>
>> __________ NOD32 2860 (20080208) Information __________
>>
>> This message was checked by NOD32 antivirus system.
>> http://www.eset.com
>>
>>
>>
>>
>> __________ NOD32 2860 (20080208) Information __________
>>
>> This message was checked by NOD32 antivirus system.
>> http://www.eset.com
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users at mythtv.org
>> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>>
>>
>>
>> __________ NOD32 2860 (20080208) Information __________
>>
>> This message was checked by NOD32 antivirus system.
>> http://www.eset.com
>>
>
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