On Apr 3, 2008, at 11:34 AM, Jonathan del Strother wrote:

CALayer says that 'contents' is "typically a CGImageRef, but may be
something else".  I (optimistically) tried assigning the
CVPixelBufferRef directly to the contents, but apparently that's not
included in the mysterious 'something else' list.

Could you point out where it says that? Typically you would set the contents property either as a CGImageRef, or as the value of the contents of another layer (which would cause them to share contents).

The only way I've found of going from CVPixelBufferRef to CGImageRef
is via CIImage, something like the following :


If you have a CVPixelBufferRef, you can use the various functions defined for a CVPixelBuffer to access the base address, row bytes, width, height and other attributes to create a CGImageRef directly from it via CGImageCreate(). You should be able to find more information by consulting the CoreVideo and Quartz references.
--
David Duncan
Apple DTS Animation and Printing
[EMAIL PROTECTED]



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