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 Application freeze when capturing video/screen		  New Topic  Reply to Topic
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borax1974

Turkey
3 Posts
Posted - Feb 18 2013 :  05:48:36  Show Profile  Reply
Hi,

I'm trying VideoCapture1 demo with a tv card. Everything works fine with 320x240. But when I change the resolution to 640x480 whole application freezes and can I have to boot the PC. I have tried with different pc's and tv cards, but freezing occurs.

The Source is seen as 'WDM Image Capture Device'

Tried with Delphi XE (ImageEn 3.1.2 and 4.1.3)

Any ideas?

borax1974

Turkey
3 Posts
Posted - Feb 20 2013 :  05:48:17  Show Profile  Reply
Any ideas? I tried Direct show examples too, but the format dialog just shows 320x240 option?

Bora Aydemir
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fab

1310 Posts
Posted - Feb 20 2013 :  14:58:37  Show Profile  Reply
Please try DirectShow samples. VideoCapture samples uses the old VfW API, while DirectShow uses WDM api, more supported by webcam and video capture devices.
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borax1974

Turkey
3 Posts
Posted - Feb 21 2013 :  03:33:16  Show Profile  Reply
I am now trying DirectShow examples but as I said I can't get resolutions higher than 320x240 in the Format Dialog.
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fab

1310 Posts
Posted - Feb 22 2013 :  04:43:41  Show Profile  Reply
Are resolutions higher than 320x240 displayed in the listbox?
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