我有一个使用 ScreenCaptureKit 的项目。由于超出问题范围的各种原因，我配置 ScreenCaptureKit 使用的格式是kCVPixelFormatType_32BGRA——我需要原始 BGRA 数据，稍后会对其进行操作。
当我从数据构造一个CGImage或时，显示和一些窗口看起来很好（完整的代码包含在问题的底部 - 这只是转换的摘录）。NSImage
guard let cvPixelBuffer = sampleBuffer.imageBuffer else { return }
CVPixelBufferLockBaseAddress(cvPixelBuffer, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(cvPixelBuffer, .readOnly) }
let vImageBuffer: vImage_Buffer = vImage_Buffer(data: CVPixelBufferGetBaseAddress(cvPixelBuffer),
height: vImagePixelCount(CVPixelBufferGetHeight(cvPixelBuffer)),
width: vImagePixelCount(CVPixelBufferGetWidth(cvPixelBuffer)),
rowBytes: CVPixelBufferGetWidth(cvPixelBuffer) * 4)
let cgImageFormat: vImage_CGImageFormat = vImage_CGImageFormat(
bitsPerComponent: 8,
bitsPerPixel: 32,
colorSpace: CGColorSpaceCreateDeviceRGB(),
bitmapInfo: CGBitmapInfo(rawValue: CGImageAlphaInfo.last.rawValue),
renderingIntent: .defaultIntent
)!
if let cgImage: CGImage = try? vImageBuffer.createCGImage(format: cgImageFormat) {
let nsImage = NSImage(cgImage: cgImage, …