avcapture

I am currently trying to figure out how to use iOS 10's AVCapturePhotoOutput method and am having trouble doing so. I feel like I am about to get it right but continue receiving an error: Terminating app due to uncaught exception 'NSGenericException', reason: '-[AVCapturePhotoOutput capturePhotoWithSettings:delegate:] No active and enabled video connection' I have tried to put this line of code in either the AVCapturePhotoCaptureDelegate or my didPressTakePhoto function: if let videoConnection = stillImageOutput.connection(withMediaType: AVMediaTypeVideo) { videoConnection.videoOrientation =

I want to pull frames from the live-feed of AVCaptureSession and I am using Apple's AVCam as a test case. Here is the link to AVCam: https://developer.apple.com/library/ios/samplecode/AVCam/Introduction/Intro.html I found that that captureOutput:didOutputSampleBuffer:fromConnection is NOT called and I would like to know why or what I am doing wrong. Here is what I have done: (1) I make the AVCamViewController a delegate @interface AVCamViewController () <AVCaptureFileOutputRecordingDelegate, AVCaptureVideoDataOutputSampleBufferDelegate> (2) I created an AVCaptureVideoDataOutput object and add

I want to display the stream of the front and the back facing camera of an iPad2 in two UIViews next to each other. To stream the image of one device I use the following code AVCaptureDeviceInput *captureInputFront = [AVCaptureDeviceInput deviceInputWithDevice:[AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo] error:nil]; AVCaptureSession *session = [[AVCaptureSession alloc] init]; session addInput:captureInputFront]; session setSessionPreset:AVCaptureSessionPresetMedium]; session startRunning]; AVCaptureVideoPreviewLayer *prevLayer = [AVCaptureVideoPreviewLayer layerWithSession

What is the most efficient way to capture frames from a MTKView ? If possible, I would like to save a .mov file from the frames in realtime. Is it possible to render into an AVPlayer frame or something? It is currently drawing with this code (based on @warrenm PerformanceShaders project ): func draw(in view: MTKView) { _ = inflightSemaphore.wait(timeout: DispatchTime.distantFuture) updateBuffers() let commandBuffer = commandQueue.makeCommandBuffer() commandBuffer.addCompletedHandler{ [weak self] commandBuffer in if let strongSelf = self { strongSelf.inflightSemaphore.signal() } } // Dispatch

Hi I want to setup AV capture session to capture images with specific resolution (and, if possible, with specific quality) using iphone camera. here's setupping AV session code // Create and configure a capture session and start it running - (void)setupCaptureSession { NSError *error = nil; // Create the session self.captureSession = [[AVCaptureSession alloc] init]; // Configure the session to produce lower resolution video frames, if your // processing algorithm can cope. We'll specify medium quality for the // chosen device. captureSession.sessionPreset = AVCaptureSessionPresetMedium; //

Whats the best method to find the image resolution going to be captured using setting AVCaptureSessionPresetPhoto . I am trying to find the resolution before capturing the image. With the function below, you can programmatically get the resolution from activeFormat before capture begins, though not before adding inputs and outputs: https://developer.apple.com/library/ios/documentation/AVFoundation/Reference/AVCaptureDevice_Class/index.html#//apple_ref/occ/instp/AVCaptureDevice/activeFormat private func getCaptureResolution() -> CGSize { // Define default resolution var resolution = CGSize

My app is landscape only. I'm presenting the AVCaptureVideoPreviewLayer like this: self.previewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:session]; [self.previewLayer setBackgroundColor:[[UIColor blackColor] CGColor]]; [self.previewLayer setVideoGravity:AVLayerVideoGravityResizeAspect]; NSLog(@"previewView: %@", self.previewView); CALayer *rootLayer = [self.previewView layer]; [rootLayer setMasksToBounds:YES]; [self.previewLayer setFrame:[rootLayer bounds]]; NSLog(@"previewlayer: %f, %f, %f, %f", self.previewLayer.frame.origin.x, self.previewLayer.frame.origin.y, self