Solved: Serious Problem #2 - Videos do not start everytime
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10-15-2013, 04:30 PM
Post: #16
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RE: Serious Problem #2 - Videos do not start everytime
Dear Fritz,
The VideoLab Library is actually a Visual Wrapper around DirectShow. I reviewed the code and the VideoLab Library is not flipping the image at all. DirectShow was the culpit. see: http://msdn.microsoft.com/en-us/library/...s.85).aspx Sometimes "biHeight" is negative. When it does, then the image is flipped. In my case, the IDS DirectDraw driver was the cause of the problem. There has to be a timing issue because we figured out that the more code that was written during the initialization process(code that was never bound the DirectShow Graph that we are using), the more frequent the problem was there. =>By adding the following Parameter in the Windows Registry, the problem was solved. => HKEY_LOCAL_MACHINE\SOFTWARE\IDS\uEye\DirectShow => FlipImageVertical = 1 Like I told you before, I will not insist that our problems are having the same cause. I do want you to know that I reviewed the VideoLab code and that it is actually just a wrapper around DirectX. If you place your demo application on a dropbox folder in a zipfile (including source code) I will download it and review it at my place. Maybe I can help you this way. Best regards, Peter |
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