我正在使用Google Mobile Vision来处理相机帧和检测人脸。检测到人脸后,我想将框架保存到文件中,但方向错误。
func captureOutput(_ captureOutput: AVCaptureOutput!, didOutputSampleBuffer sampleBuffer: CMSampleBuffer!, from connection: AVCaptureConnection!) {
guard let image = GMVUtility.sampleBufferTo32RGBA(sampleBuffer) else {
print("No Image")
return
}
// wrong orientation when saving image here
}