K-lite Codec crashing issue

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K-lite Codec crashing issue

Post by wasyl on Fri Mar 20, 2015 12:19 am

Hi

I have a C# windows form application in which I am playing videos one by one using WMP activex object and WPF MediaElement (I have included it using element host into windows forms). When application starts user selects either WMP or Media Element to play the videos. Then application starts the playing videos one by one from predefined local directory.

The video formats are almost all the leading formats like wmv, avi, mpg, mpeg, mp4, mkv, flv, mov, vob, 3gp. I am using K-lite codecs full pack so that all these formats can play in the player.

Now, the problem is that after installing the k-lite and my application everything works perfectly (All videos plays perfectly). But after sometime some videos stops playing in both the components. At that time I checked whether it plays in actual (native) windows media player or not but it does not play in it also. Then if I uninstalls the K-lite and installs it again, video starts playing both in my application as well as native WM Player. This behavior happens again after some time.

The time after it happens can be anything between hours to days and every time it happens with different video formats. Also I checked it with different hardware and the behavior is same. What could be this problem? Is it a components (WMP activex and Media element) problem? Is it really that codecs crashing issue? or is this issue of codecs conflict with graphics driver?

Also, I have disabled the hardware acceleration in registry.

wasyl

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Re: K-lite Codec crashing issue

Post by Admin on Fri Mar 20, 2015 12:39 am

If it crashes, then you would get a crash dialog. So I think the DirectShow graph builder is failing somehow.

Do you files still play in MPC-HC when the stop playing with WMP?

Does this fix it?
Codec Tweak Tool > Fixes > Clear ActiveMovie Filter Cache

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Re: K-lite Codec crashing issue

Post by wasyl on Fri Mar 20, 2015 8:41 pm

Codec Tweak Tool > Fixes > Clear ActiveMovie Filter Cache

That fic the problem. Thank you Very Happy

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Re: K-lite Codec crashing issue

Post by Admin on Sat Mar 21, 2015 5:35 am

Good. I expected that would do the trick.

The problem may return. I suspect you have some third party filter installed that triggers a bug in the standard DirectShow graph builder from Windows. To fix the problem permanently, we need to identify what triggers the problem.

You can generate a list of all installed codecs. Copy the list here and I can check if it contains any suspicious candidates that might be the cause.
Codec Tweak Tool > Generate Log

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Re: K-lite Codec crashing issue

Post by Admin on Sat Mar 21, 2015 5:40 am

And if the problem returns, I would be interested in the contents of the following Registry key:
HKCU\Software\Microsoft\Multimedia\ActiveMovie\Filter Cache

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Re: K-lite Codec crashing issue

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