[mythtv-users] Seek Table Question

Brian Walter blwalter at gmail.com
Thu Jun 7 18:41:38 UTC 2007


Bryan Mayland wrote:
> Brian Walter wrote:
>   
>> I noticed when running a mythcommflag --rebuild on my video directory,
>> that it appears sql statements are queued up, then posted en mass (this
>> is from watching the progress bar, as well as watching 'top' on the sql
>> server).
>>
>> Is this the same behavior mythbackend uses while recording a program?
>>   
>>     
> Depends on which recorder is being used.  I know that the mpeg2recorder 
> (used for PVR-150/500/250/350 capture) flushes the "position map" to the 
> database every 30 keyframes, and every 5 for the 30.
> _______________________________________________
>   
Thanks!  just out of curiosity, *approx* how often do key frames come 
along?  Give this information, I'm noticing that little *burps* seem to 
happen in some recordings at regular intervals - usually between 10-13 
seconds.  The corruption is in the file - not playback, so I'm looking 
form something that happens on a fairly regular basis.


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