Le jeudi 23 avril 2015 01:12:54 UTC+2, Randell Jesup a écrit :
> On 4/22/2015 5:45 PM, Gian-Carlo Pascutto wrote:
> > On 21/04/2015 22:24, [email protected] wrote:
> >
> >> I discovered that the pixels coming form getUserMedia() have been
> >> compressed (VP8 codec). This gives messy values to my depth pixels.
> > That sounds wrong. Why would the local video be compressed?
> >
> > Maybe you're seeing some colorspace conversion instead?
> 
> If your camera is using MJPEG (which was broken for a long time, and 
> just re-landed) then obviously the video is compressed.
> 
> Cameras are inherently noisy, and often run mini-DSPs to do color 
> correction, deflickering (florescents), denoising, low-light 
> compensation (adds noise or removes detail or both), etc.
> 
> We do prefer YPrPb 4:2:0 video, and convert to that if it isn't.
> 
> -- 
> Randell Jesup

Actually, I create the video pixels in a directshow video camera driver.
I use 24 RGB RAW color format.
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