On Feb 8, 2016, at 2:41 PM, Motti Shneor <[email protected]> wrote:
> 
> […] I see strange warnings in the console: "Fallingback to pbuffer. FBO 
> status is 36054” for every captured video frame (30 a sec…). 

> Can someone tell me what is the source of this error line? what is FBO, and 
> what has fallen-back? where is a documentation of the error, and is there a 
> workaround the problem?

FBO is framebuffer object, a feature of OpenGL, which Core Image is using under 
the hood.  The status is GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT.  Due to the 
problem using an FBO, Core Image has switched (fallen back) to using a PBuffer 
(pixel buffer), an old, deprecated feature of OpenGL, instead.

I'm afraid I don't know why using an FBO has failed.  You might try the 
mac-opengl or quartz-dev mailing lists.  You can also open a bug report with 
Apple and then open a developer technical support incident with them asking for 
a workaround for the bug.

Regards,
Ken


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