JMF Registry could not add item (Vista)

Question

Hello,

I'm using JMF to capture video stream (webcam) on my Java project.

The camera I'm using is recognized by JMF (JFMStudio) and I manage to get the video stream.

However, on JMF Registry Editor - there's a list of available capture devices, when I click "Add" on one of the items (including the one I need) I get a "Could not add item" error. Therefore this camera is not set in the registry of it (god know where) and later on it is not recognized by my project:

RGBFormat fmt = new RGBFormat(); // could be YUV - doesn't matter Vector v = CaptureDeviceManager.getDeviceList(fmt);

v is empty (while I know the video source is recognized by Java , since I manage to get video on JMF Studio).

Now, this happens only on Vista (where else) and not on XP.

I have a suspiction that somehow Vista security blocks Java from writing the registry file, but of course, I might be wrong.

One more comments: this is vfw:Microsoft WDM Image Capture(Win32):0 device.

Any idea ?

Answer 1

Well I've used JMF on Vista to capture a webcam image, and it worked. I did not use the JMF Studio though, so can't be of much help on there.

I posted some sample code in this post, you might take a look and see if it'll run for you.

Answer 2

Directed at anyone else in future who encounters the same issue

i had the same problem and i realized that it was because my Java Media Framework was installed under "C:\Program Files" by default. When I ran "jmfinit.exe" in \bin, I noticed I couldn't update the "jmf.properties" file

Error replicated below

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Found device Microsoft WDM Image Capture (Win32) Querying device. Please wait... Exception on commit = java.io.FileNotFoundException: C:\Program Files\JMF2.1.1e\bin..\lib\jmf.properties (Access is denied)

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I changed the security settings for the the JMF2.1.1e folder and everything works fine. I'm pretty sure installing it somewhere else works too