avcapturesession

I've implemented the code below to change the orientation of an AVCaptureVideoSession based upon the UIInterfaceOrientation : - (AVCaptureVideoOrientation)interfaceOrientationToVideoOrientation:(UIInterfaceOrientation)orientation { switch (orientation) { case UIInterfaceOrientationPortrait: return AVCaptureVideoOrientationPortrait; case UIInterfaceOrientationPortraitUpsideDown: return AVCaptureVideoOrientationPortraitUpsideDown; case UIInterfaceOrientationLandscapeLeft: return AVCaptureVideoOrientationLandscapeLeft; case UIInterfaceOrientationLandscapeRight: return

I am trying to record video in my iPhone app using AVFoundation. But whenever I click the Record button app crashes with this message -[AVCaptureMovieFileOutput startRecordingToOutputFileURL:recordingDelegate:] - no active/enabled connections. I know same question asked in SO, but none of its answers helped me. My problem is the same code works with another application perfectly, and when I try using exactly same code in this app - crashes. But still photo capture is working fine. Adding my codes here - please help me, Thanks in advance -(void)viewDidLoad { [super viewDidLoad]; self

How can I do face detection in realtime just as "Camera" does? like white round shape around and over the face. I use AVCapturSession . I found that the image I saved for facial detection. Below I have attached my current code. it only captures image when I press the button and save it into the photo gallery. some please help me to create real-time round shape over according to the person's face! code class CameraFaceRecongnitionVC: UIViewController { @IBOutlet weak var imgOverlay: UIImageView! @IBOutlet weak var btnCapture: UIButton! let captureSession = AVCaptureSession() let

Use Case: I want to capture input from the camera, draw on top of the captured frames (and sound) and save the result as a .mov file. I see that I can capture input for the camera using AVCaptureSession. I can save this to a .mov file using AVCaptureMovieFileOutput. AVVideoComposition can be used to add Core Animation for playback. I assume for recording somehow too? Problem: I can't see how to modify the input before it is saved to file. The RosyWriter was almost doing what I wanted. Adding the following code to captureOutput:didOutputSampleBuffer:fromConnection: enabled me to draw onto the

I'm reading this tutorial on getting pixel data from the iPhone camera. While I have no issue running and using this code, I need to take the output of the camera data (which comes in BGRA) and convert it to ARGB so that I can use it with an external library. How do I do this? If you're on iOS 5.0, you can use vImage within the Accelerate framework to do a NEON-optimized color component swap using code like the following (drawn from Apple's WebCore source code ): vImage_Buffer src; src.height = height; src.width = width; src.rowBytes = srcBytesPerRow; src.data = srcRows; vImage_Buffer dest;

I need to hold some video frames from a captureSession in memory and write them to a file when 'something' happens. Similar to this solution , i use this code to put a frame into a NSMutableArray: - (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputSampleBuffer(CMSampleBufferRef)sampleBuffer fromConnection:(AVCaptureConnection*)connection { //... CVImageBufferRef imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer); uint8 *baseAddress = (uint8*)CVPixelBufferGetBaseAddress(imageBuffer); NSData *rawFrame = [[NSData alloc] initWithBytes:(void*)baseAddress length:(height *