Giampaolo Bellini wrote: > > Hi all... > > In my application, I'm moving from a CCD camera (connected to a > framegrabber) to a usb Creative Webcam... I'm in trouble converting > the > > VIDEO_PALETTE_YUV420P buffer into VIDEO_PALETTE_RGB32 ; is there a > function one can call to perform such conversion ? > > > thanks in advance, > > > Gimpaolo
Short answer: yes, but not in V4L. Get ffmpeg ( http://ffmpeg.sourceforge.net ) and use img_convert.
Longer answer: there are a number of technicalities when calling that function; they are probably OT (are they really?) for this list, but I would be glad to help by direct E-mail if they are. Opinions?
But they require knowing one thing: in V4l, what *exactly* is VIDEO_PALETTE_RGB32? I never used it much, since YUV420P is *the* format when using ffmpeg; from the few notes I took down, seems it is actually B-G-R-X in byte order, with X all 8 bits zero. Can someone confirm?
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