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 Application freeze when capturing video/screen

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T O P I C    R E V I E W
borax1974 Posted - Feb 18 2013 : 05:48:36
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?
4   L A T E S T    R E P L I E S    (Newest First)
fab Posted - Feb 22 2013 : 04:43:41
Are resolutions higher than 320x240 displayed in the listbox?
borax1974 Posted - Feb 21 2013 : 03:33:16
I am now trying DirectShow examples but as I said I can't get resolutions higher than 320x240 in the Format Dialog.
fab Posted - Feb 20 2013 : 14:58:37
Please try DirectShow samples. VideoCapture samples uses the old VfW API, while DirectShow uses WDM api, more supported by webcam and video capture devices.
borax1974 Posted - Feb 20 2013 : 05:48:17
Any ideas? I tried Direct show examples too, but the format dialog just shows 320x240 option?

Bora Aydemir