如何从CVPixelBufferRef获取RGB(或任何其他格式)像素值？我尝试了很多方法,但还没有成功.
func captureOutput(captureOutput: AVCaptureOutput!,
didOutputSampleBuffer sampleBuffer: CMSampleBuffer!,
fromConnection connection: AVCaptureConnection!) {
let pixelBuffer: CVPixelBufferRef = CMSampleBufferGetImageBuffer(sampleBuffer)!
CVPixelBufferLockBaseAddress(pixelBuffer, 0)
let baseAddress = CVPixelBufferGetBaseAddress(pixelBuffer)
//Get individual pixel values here
CVPixelBufferUnlockBaseAddress(pixelBuffer, 0)
}