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I'm try create application where I can record video from different cameras on device during recording. For example. User press button "start record" from front camera, after 5 second recording user press button "Switch Camera" and application change video source from front to back camera and recording continue. For camera swithcing I use next code: NSError *error; AVCaptureDeviceInput *newVideoInput; AVCaptureDevicePosition currentCameraPosition = [[videoInput device] position]; if (currentCameraPosition == AVCaptureDevicePositionBack) { currentCameraPosition = AVCaptureDevicePositionFront; } else { currentCameraPosition = AVCaptureDevicePositionBack; } AVCaptureDevice *backFacingCamera = nil; NSArray *devices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo]; for (AVCaptureDevice *device in devices) { if ([device position] == currentCameraPosition) { backFacingCamera = device; } } newVideoInput = [[AVCaptureDeviceInput alloc] initWithDevice:backFacingCamera error:&error]; if (newVideoInput != nil) { [_captureSession beginConfiguration]; [_captureSession removeInput:videoInput]; if ([_captureSession canAddInput:newVideoInput]) { [_captureSession addInput:newVideoInput]; videoInput = newVideoInput; } else { [_captureSession addInput:videoInput]; } //captureSession.sessionPreset = oriPreset; [_captureSession commitConfiguration]; } _inputCamera = backFacingCamera; After this appication change video sourse and continue writing, but... audio/video out of sync... Can anybody hehp me with this problem? Thank you.

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