Pixel formats, CVPixelBufferRefs and glReadPixels

Question

I\'m using glReadPixels to read data into a CVPixelBufferRef. I use the CVPixelBufferRef as the input into an AVAssetWriter

Answer 1

It's kind of a shot in the dark, but have you tried GL_BGRA for glReadPixels with kCVPixelFormatType_32BGRA for CVPixelBufferCreate?

I suggest this because Technical Q&A QA1501 doesn't list any RGBA format as supported.