avfoundation

Been pulling my hair out trying to figure out the current best path from AVFoundation videos to an openGLTexture, most of what I find is related to iOS, and I can't seem to make it work well in OSX. First of all, this is how I set up the videoOutput: NSDictionary *pbOptions = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithInt:kCVPixelFormatType_422YpCbCr8], kCVPixelBufferPixelFormatTypeKey, [NSDictionary dictionary], kCVPixelBufferIOSurfacePropertiesKey, nil]; self.playeroutput = [[AVPlayerItemVideoOutput alloc] initWithPixelBufferAttributes:pbOptions]; self.playeroutput

I am using UIImagePickerController to record a video. and am using AVPlayer to play a video. and adding AVPlayerLayer to UIImagePickerController's cameraOverlayView so that i can see video while recording. My requirement is I need to watch video while recording video using UIImagePickerController using headset i need to listen audio from playing video need to record my voice to recording video only my voice should be recorded but not playing video's audio. every thing working but 4. audio from playing video also mix with my voice. how to handle this case? My final goal is Out put for the

The Problem: During every playback, the audio is between 1-2 seconds behind the video. The Setup: The assets are loaded with AVURLAssets from a media stream. To write the composition, I'm using AVMutableCompositions and AVMutableCompositionTracks with asymmetric timescales. The audio and video are both streamed to the device. The timescale for audio is 44100; the timescale for video is 600. The playback is done with AVPlayer. Attempted Solutions: Using videoAssetTrack.timeRange for [composition insertTimeRange] . Using CMTimeRangeMake(kCMTimeZero, videoAssetTrack.duration); Using

I'm trying to merge two videos I get after recording using the camera as a UIImagePickerController. I've succeeded with combining the videos into one but I have some problems with the orientation of the videos. As I've understood it with the UIImagePickerController is that all videos are captured in landscape, this means that the videos recorded in portrait are rotated 90°. After each recording I add the new video to an array func imagePickerController(picker: UIImagePickerController!, didFinishPickingMediaWithInfo info:NSDictionary) { let tempImage = info[UIImagePickerControllerMediaURL] as

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 *

I want to play stream audio from the Internet. I wrote code that plays stream but it don't have any buffer so if signal is weak application stop playing audio. This is my code: import UIKit import AVFoundation import MediaPlayer import AudioToolbox class ViewController: UIViewController { var playerItem:AVPlayerItem? var player:AVPlayer? @IBOutlet weak var PlayButton: UIButton! override func viewDidLoad() { super.viewDidLoad() var buffer = AVAudioBuffer () let url = NSURL (string: "http://radio.afera.com.pl/afera64.aac") playerItem = AVPlayerItem(URL: url!) player = AVPlayer(playerItem: