How I Make Hd Smooth

[Imbalanced Zero]

Previously I had been getting bad jitter when watching BBC HD on Vista. So I had a look on the net to see if I could do anything about it.

 

Firstly I don't know if this has any real effect, but it seems to work for me. Under filters I choose DVB Source and change the latency setting to 1000ms. I have no idea what this really does, but it seems to help.

 

And finally the most important changes are in the registry when using the Cyberlink H.264 Codec. I have had to add more dword entries, but it really seems to help(the ones is bold are the ones i have added):

 

 

Windows Registry Editor Version 5.00

 

[HKEY_CURRENT_USER\Software\Cyberlink\Common\cl264dec\DVBViewer]

"UIUseHVA"=dword:00000001

"UIVMode"=dword:00000002

"UIGamma"=dword:00000000

"UICB"=dword:00000000

"UICR"=dword:00000000

"UICON"=dword:00000000

"UISAT"=dword:00000000

"TwinviewDXVA"=dword:00000001

"DecodeAllFrames"=dword:00000001

"SyncDelivery"=dword:00000001

"IHWMC"=dword:00000001

 

You could copy and paste this into a new reg file like dvbviewercodec.reg and merge it into the registry.

 

Now when I watch BBC HD i don't get the jerkiness i used to get and the over time the fps doesn't decrease over time and jitter is minimal. Everything is a lot smoother and I am truly happy again!

 

Hope this helps a few people.

Edited April 3, 2007 by Imbalanced Zero

[rocket_robot]

Previously I had been getting bad jitter when watching BBC HD on Vista. So I had a look on the net to see if I could do anything about it.

 

Firstly I don't know if this has any real effect, but it seems to work for me. Under filters I choose DVB Source and change the latency setting to 1000ms. I have no idea what this really does, but it seems to help.

 

And finally the most important changes are in the registry when using the Cyberlink H.264 Codec. I have had to add more dword entries, but it really seems to help(the ones is bold are the ones i have added):

Windows Registry Editor Version 5.00

 

[HKEY_CURRENT_USER\Software\Cyberlink\Common\cl264dec\DVBViewer]

"UIUseHVA"=dword:00000001

"UIVMode"=dword:00000002

"UIGamma"=dword:00000000

"UICB"=dword:00000000

"UICR"=dword:00000000

"UICON"=dword:00000000

"UISAT"=dword:00000000

"TwinviewDXVA"=dword:00000001

"DecodeAllFrames"=dword:00000001

"SyncDelivery"=dword:00000001

"IHWMC"=dword:00000001

 

You could copy and paste this into a new reg file like dvbviewercodec.reg and merge it into the registry.

 

Now when I watch BBC HD i don't get the jerkiness i used to get and the over time the fps doesn't decrease over time and jitter is minimal. Everything is a lot smoother and I am truly happy again!

 

Hope this helps a few people.

 

Hi,

 

I have tried this and I am still getting this jerkiness. It is wierd it is not strainght away, only after about a minute or so with the Cyberlik decoder. If I use CoreAVC (v1.2 only as 1.3 does not work) it is jerky all the time.

The strange thing is, if I record some bbc hd then play it back in media center classic, then playback is smooth with both decoders.

 

My CPU runs at about 30% when the picture is jerky, and 50% when smooth, so I am not CPU bound. Anyone any ideas?

 

As I am writing this, I just thought of trying if playback is jery in DVBViewer, when I playback a recording, i'll do this tomorrow.

[Gae41]

Hi,

 

I have tried this and I am still getting this jerkiness. It is wierd it is not strainght away, only after about a minute or so with the Cyberlik decoder. If I use CoreAVC (v1.2 only as 1.3 does not work) it is jerky all the time.

The strange thing is, if I record some bbc hd then play it back in media center classic, then playback is smooth with both decoders.

 

My CPU runs at about 30% when the picture is jerky, and 50% when smooth, so I am not CPU bound. Anyone any ideas?

 

As I am writing this, I just thought of trying if playback is jery in DVBViewer, when I playback a recording, i'll do this tomorrow.

 

 

It took me a while fiddling with settings until I got BBC HD running smoothly in DVBViewer. Then I too found that every now and then the picture goes jerky for a few seconds, then runs smoothly for a few seconds, goes jerky again and keeps repeating. My solution? I went into "View" in the menu, scrolled down and clicked "rebuild graph". The picture goes black for a second or so, rebuilds itself and then all the jerkiness goes and the picture is silky smooth once more. If I switch channels and come back to BBC HD later on, sometimes it happens again and I have to repeat the "build graph" operation once more. It usually solves the problem.

Hope it works for you people.

 

Gae

Edited April 22, 2007 by Gae41