[mythtv-users] Playback problem -- random short pauses

[Andre]

On 1 Jun 2011, at 18:22, Steven Adeff wrote:

> On Wed, Jun 1, 2011 at 7:50 AM, Andre <mythtv-list at dinkum.org.uk> wrote:
>> I had #2 with UK SD, post 0.24 and pre BBC One HD, removing vdpauhqscaling seems to have removed #2
>> for me based on a couple of hours of BBC3 sample, it comes back when hqscaling is back on so I'm pretty
>> confident the sample is enough.
>> 
>> Another possible odd clue is that I used to see a great deal of stutter at the end of each show, specifically at
>> the fade to black and credits, this would go totally nuts for the first 20 sec. This seems better with the local
>> disk build than the nfs boot, just two or three stutters now. This is on all h264 HD channels not just BBC HD
>> so not specific to the BBC's bleeding edge encoders.
> 
> is this when watching live tv or recorded? (ie is it issue #1 or #3)?

I only watch recorded and it's too repeatable to be #1, usually the pauses are heisenbug in nature, not there when you look for them again but although it's slightly different each time there are always some pauses there.

I know that encoder profiles often change at this time, the content can go from telecine'd 25fps to 50i as graphics are inserted, credits are squeezed etc. maybe that's related? When I've tried vdpau ivtc it usually goes nuts at the end of a show as the interstitial or ads are mixed in.


> 
>> Although I'm in the UK, I work with various foreign broadcasters too so I have off air examples of many of their
>> HD transmissions to test with. I'll run through my test library and see if there is any obvious pattern related to
>> rates or encoder manufacturer.
>> 
>> I'm assuming that mythvideo & myth recordings playback are now the same player code with the same setup?
> 
> yes, from my understanding. I have not tried to watch a file from my
> recorded content through MythVideo yet to see if the issue emerges,

I've tried a few things but I need to go make some seektables before I can really compare much.


> but none of the normal x264 or mpeg2 content I've played through
> MythVideo have had the issue. it is what initially made me think the
> problem was due to mysql.

H'mm I'll hold off on the seek tables then... I'll just be careful not to ff!

Andre


> 
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> Steve
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