Hi,
When a Video Capture Device supports RGB then in dshowvideosrc the video rgb data is converted from bottom-up to top-down with a "for" and "memcpy"s. (because gstreamer wants top-down).
According to this document:
http://msdn.microsoft.com/en-us/library/ms787796(VS.85).aspx it should be possible to use a negative height in order to get a top-down rgb data.
And so we could avoid the "for" + "memcopy"s.
I tried on two different Video Capture Devices that can only output RGB24. I set the VIDEOINFOHEADER.bmiHeader.biHeight to -height instead of +height)
But I got a crash which happens in a Windows dll.
Does anybody know any informations about it ?
Thx
Sincerely
Julien
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