CVPixelBufferRef到NSImage

Question

如何將CVPixelBufferRef轉換爲NSImage或CGImageRef？我需要能夠在覈心動畫層中顯示像素緩衝區的內容。

Answer 1

要將緩衝區轉換爲圖像，需要先將緩衝區轉換爲CIImage，然後才能將其轉換爲NSImage。

let ciImage = CIImage(cvImageBuffer: pixelBuffer) 

let context = CIContext(options: nil) 

從這裏你可以去這兩個GCImage和NSImage：

let width = CVPixelBufferGetWidth(pixelBuffer) 
let height = CVPixelBufferGetHeight(pixelBuffer) 

let cgImage = context.createCGImage(ciImage, from: CGRect(x: 0, y: 0, width: width, height: height)) 

let nsImage = NSImage(cgImage: cgImage, size: CGSize(width: width, height: height))