CVPixelBufferRef转换为NSImage

Question

我该如何将CVPixelBufferRef转换为NSImage或CGImageRef？我需要能够在Core Animation层中显示像素缓冲区的内容。

- Drew C

Answer 1

将缓冲区转换为图像，您需要先将缓冲区转换为 CIImage，然后再将其转换为 NSImage。

let ciImage = CIImage(cvImageBuffer: pixelBuffer)

let context = CIContext(options: nil)

从这里您可以访问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))

- mangerlahn