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21 posts


# 40866 5-Sep-2009 14:37
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I posted this on the DVBViewer forums a while ago, and haven't had any response there. I figure there are some bright people here who might be able to help.

In newer versions of DVBViewer (including the latest v4.2.1), what essentially happens is that if the DVBViewer window is not run in full-screen mode, the video becomes quite "jumpy" - every 5 seconds or so the video will freeze for about 1 second, before resuming. It's very distracting and almost looks like it's dropping frames - although the audio is fine. If I play it in full screen mode, the video is smooth and works fine - the symptoms only occur when DVBViewer is in "windowed" mode. I am using EVR rendering mode (running on Vista Business edition) with the Cyberlink codecs for H.264, as I have a graphics card capable of hardware decoding.

Version 3.9.4 works perfectly, but is quite old. I tried the beta of 4.0 earlier this year, and it had some problems with the video being quite "jumpy". I assumed this was just a bug in the beta, so waited till the final version of 4.0 came out, and installed that. The same problem occurred, so I reverted to 3.9.4. I have tried installing the latest version (4.2.1) and the problem still exists - so yet again I have reverted back to 3.9.4.

Does anyone have any suggestions as to what the problem might be, and how to fix it?

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  # 253395 5-Sep-2009 15:24
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What video card are you using? Do you have the latest NVidia drivers if it's an NVidia carD?

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  # 253398 5-Sep-2009 15:33
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nVidia 8500GT with latest drivers.

I do want to reiterate that everything works perfectly if I use DVBViewer 3.9.4, but anything from 4.0 onwards is problematic.

I purchased a license for DVBViewer in March last year after Fossie posted instructions here on Geekzone regarding Freeview HD, so the software is legit and downloaded directly from the DVBViewer website.


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  # 253482 6-Sep-2009 05:22
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hi somebody123,
i am using the latest dvb viewer software 4.2.1 pro .
windows 7 ,
mpe2 video decoder & h_264 video decoder "microsoft dtv-dvd video decoder "
video renderer evr vista enhanced video renderer ( experimental ) i have tried other codecs including cyberlink and all have problems or have higher cpu load
running on a presario dv6000 laptop average cpu load 12%
i dont seem to have any of the problems you describe but have noticed poor video performance when using vlc to decode h_264
wmc also works fine .
so i dont think dvbviewer is the problem the likely culprit could be the cyberlink codecs .

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  # 253484 6-Sep-2009 07:16
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Thanks wiredr.

I'm struggling to believe that it's a codec issue, since the exact same codecs used with DVBViewer 3.9.4 work perfectly with no problems whatsoever.

In any case, I'm upgrading to W7 later this year so will try using the Microsoft codec then and see what happens.

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  # 253489 6-Sep-2009 09:04
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I know a few people have said changes to Media Portal have meant that good H.264 decoding now requires a 9 series NVidia card to work well. I wonder if this could be a similair issue?

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  # 253530 6-Sep-2009 13:39
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Could be - I know between 3.9.4 and 4.x they've added the ability to have two decoding configurations, so possibly something they've done there is responsible for the problem.

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