小编Mic*_*elG的帖子

我试图在原始帖子中回答这个问题,但是不会让我这么做.希望有更多权限的人可以将其合并到原始问题中.

好的,这是一个更完整的答案.首先,设置捕获:

// Create capture session
self.captureSession = [[AVCaptureSession alloc] init];

[self.captureSession setSessionPreset:AVCaptureSessionPresetPhoto];

// Setup capture input
self.inputDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
AVCaptureDeviceInput *captureInput = [AVCaptureDeviceInput deviceInputWithDevice:self.inputDevice
                                                                           error:nil];
[self.captureSession addInput:captureInput];

// Setup video processing (capture output)
AVCaptureVideoDataOutput *captureOutput = [[AVCaptureVideoDataOutput alloc] init];
// Don't add frames to the queue if frames are already processing
captureOutput.alwaysDiscardsLateVideoFrames = YES;

// Create a serial queue to handle processing of frames
_videoQueue = dispatch_queue_create("cameraQueue", NULL);
[captureOutput setSampleBufferDelegate:self queue:_videoQueue];

// Set the video output to store …