CVMetalTextureCacheCreateTextureFromImage returns -6660 on macOS 10.13

Question

I\'m recording the screen from my iPhone device to my Mac. As a preview layer I am collecting sample buffers directly from a AVCaptureVideoDataOutput, from whic

Answer 1

Another way to get from a CVPixelBufferRef to MetalTexture, you could go via a CIImage and use a CIContext with a Metal device (hopefully minimises getting the CPU involved with copying the pixel buffer);

Make sure your target metal texture is appropriately sized.

CIContext* ciContext = [CIContext contextWithMTLDevice:mtlDevice
    options:[NSDictionary dictionaryWithObjectsAndKeys:@(NO),kCIContextUseSoftwareRenderer,nil]
];

id metalCommandBuffer=[mtlCommandQueue commandBufferWithUnretainedReferences];

CIImage* ciImage = [[CIImage alloc] initWithCVPixelBuffer:cvPixelBuffer];

[ciContext render:ciImage 
    toMTLTexture:metal_texture 
    commandBuffer:mtlCommandBuffer
    bounds:[ciImage extent])
    colorSpace:[ciImage colorSpace]];