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freitasm

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#19694 26-Feb-2008 20:57
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Is just our reception/decoding or can anyone else confirm TV One and TV Two right now seem a bit "jumpy" or "jerky", like a movie with some missing frames sometimes?

It looks like streaming something over the Internet with dropped frames... Sound is perfect though.

Nothing has changed in my system configuration.




 

 

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freitasm

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#113230 26-Feb-2008 21:37
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TVNZ6 and Maori TV look normal. It is only TV One and TV Two...

Something with their feeds perhaps?




 

 

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  #113231 26-Feb-2008 21:40
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I've just been watching about 15 mins of Oceans 12 using GB-PVR and haven't noticed any issues.

 
 
 
 


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  #113238 26-Feb-2008 22:26
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Have you checked your CPU usage, perhaps it's maxing out?  Or are you using a H.264 Video card that is doing onboard.  Since they are live feeds now perhaps the bitrate is just that little bit higher that your CPU can't handle it.  But hey what would I know, I don't even have a PC powerful enough to play the demo streams :P




and


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  #113245 26-Feb-2008 22:48
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freitasm: Is just our reception/decoding or can anyone else confirm TV One and TV Two right now seem a bit "jumpy" or "jerky", like a movie with some missing frames sometimes?

It looks like streaming something over the Internet with dropped frames... Sound is perfect though.

Nothing has changed in my system configuration.


DTT can have lots of minor issues with things like poor cabling or borderline UHF aerials. I've just upgraded all of these to try and improve reception. Even though before I had good signal strength it is now a lot more reliable.

Otherwise try and perform a capture to check later to make sure it isn't a PC issue.




Generally known online as OpenMedia, now working for Red Hat APAC a Technology Evangelist and Product Manager. Still playing with MythTV and digital media on the side.


freitasm

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#113283 27-Feb-2008 08:40
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openmedia: DTT can have lots of minor issues with things like poor cabling or borderline UHF aerials. I've just upgraded all of these to try and improve reception. Even though before I had good signal strength it is now a lot more reliable.


The signal says 100%, and I can see Mt Kaukau from my window - about two kms away only. Using the same cable everything tht was here before when all was ok.

Will check connections though.




 

 

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freitasm

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#113284 27-Feb-2008 08:42
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BarTender: Have you checked your CPU usage, perhaps it's maxing out?  Or are you using a H.264 Video card that is doing onboard.  Since they are live feeds now perhaps the bitrate is just that little bit higher that your CPU can't handle it.  But hey what would I know, I don't even have a PC powerful enough to play the demo streams :P


The CPU is running at 55% when in full screen mode - when in windowed mode it runs a bit lower but then th video is better.

I wonder... If the CPU would be the case and one has an Intel Core 2 Duo 1.83 GHz machine with 1 GB RAM then what kind of power is in the settop box?





 

 

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  #113290 27-Feb-2008 08:51
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freitasm:
BarTender: Have you checked your CPU usage, perhaps it's maxing out? Or are you using a H.264 Video card that is doing onboard. Since they are live feeds now perhaps the bitrate is just that little bit higher that your CPU can't handle it. But hey what would I know, I don't even have a PC powerful enough to play the demo streams :P


The CPU is running at 55% when in full screen mode - when in windowed mode it runs a bit lower but then th video is better.

I wonder... If the CPU would be the case and one has an Intel Core 2 Duo 1.83 GHz machine with 1 GB RAM then what kind of power is in the settop box?



The STBs have H.264 acceleration integrated into the Silicon. They are generally around 200-300 MHz Arm style processors.

If you can offload more of the H.264 decode to your graphics card that would help.

Steve




Generally known online as OpenMedia, now working for Red Hat APAC a Technology Evangelist and Product Manager. Still playing with MythTV and digital media on the side.


 
 
 
 


Davos
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  #113304 27-Feb-2008 09:49
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I don't know if this is related, but the TCL picture on TV1 last night kept jumping from widescreen to 4:3 and back again (This was during the Dancing with the Stars timeslot as my wife was getting rather fed up with it)

freitasm

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#113305 27-Feb-2008 09:51
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I think it could be related. It's only those two channels doing this on my system. During Dancing with the Stars we saw lots of pixelations during the first hour then it stopped. But the jerky movement is still there.

As I said, nothing changed in my system and this only started happening yesterday.





 

 

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  #113374 27-Feb-2008 17:11
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Been ok here on Fitherbert,had a quick check on Kaukau,appears ok.
They were having problems with the MER fluctuating,kk only

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  #113452 27-Feb-2008 23:01
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Is the powerdvd h264 codec decently threaded, 55% cpu might just mean one core is maxed out and the other is puttering along doing the audio and other stuff.




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freitasm

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#113456 28-Feb-2008 00:48
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Hmmm. It shows as both cores pretty much the same...




 

 

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