I have developed an application which captures video stream using DirectShow. While capturing, video is displayed on the canvas area. This works fine for the first time. But when again clicking on Start capturing button, video is getting captured, it doesn't display in the canvas area. Don;t know whether actually the camera is capturing the video or not.
You can debug to check if the code flow path is different from the first one in the second case.
If this doesn't help consider reinitialization of variables you are using before you display the video on the canvas.
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