avcapturesession

This SO answer addresses how to do a screen capture of a UIView . We need something similar, but instead of a single image, the goal is to produce a video of everything appearing within a UIView over 60 seconds -- conceptually like recording only the layers of that UIView , ignoring other layers. Our video app superimposes layers on whatever the user is recording, and the ultimate goal is to produce a master video merging those layers with the original video. However, using AVVideoCompositionCoreAnimationTool to merge layers with the original video is very, very, very slow: exporting a 60

I am using standard AVFoundation classes to capture video and show preview ( http://developer.apple.com/library/ios/#qa/qa1702/_index.html ) Here is my code: - (void)setupCaptureSession { NSError *error = nil; [self setCaptureSession: [[AVCaptureSession alloc] init]]; self.captureSession.sessionPreset = AVCaptureSessionPresetMedium; device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo]; if ([device isFocusModeSupported:AVCaptureFocusModeContinuousAutoFocus] && [device lockForConfiguration:&error]) { [device setFocusMode:AVCaptureFocusModeContinuousAutoFocus]; [device

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; //

I have a UIViewController in which I use AVCaptureSession to show the camera and it is working just fine and fast. I placed a UIButton object on top of this camera view and added a IBAction for the button. This is how it looks like right now: Now I want to get the picture of the current camera view when the user taps the button: @IBAction func takePicture(sender: AnyObject) { // omg, what do do?! } I have no idea whatsoever on how I can do that. I imagined there could have been something like: let captureSession = AVCaptureSession() var myDearPicture = captureSession.takePicture() as UIImage /

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