avfoundation

Engineering has provided the following information regarding this issue: CoreImage filtering and layer instruction based composition can't be used simultaneously. Layer instructions won't be run when added to an AVMutableVideoComposition that it is initialized with +[videoCompositionWithAsset:applyingCIFiltersWithHandler:]. To use layer instructions in this case, move the functionality into the handler instead of adding the layer instructions to the AVMutableVideoComposition. This is what i found from apple engineer. It says To use layer instructions in this case, move the functionality into

I am writing a little app to record multiple tracks and play them back over one another. I am using the PlaybackAndRecord mode and i am routing my output to the main speakers. Problem is that the bottom microphone is still being used for input as well so now I when I record I get the output from the other tracks really loud on the new track. Here is what I have so far: audioSession = [AVAudioSession sharedInstance]; [audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error:nil]; OSStatus propertySetError = 0; UInt32 allowMixing = true; propertySetError = AudioSessionSetProperty

My question is mostly similar to this one: Cropping image captured by AVCaptureSession I have an application which uses AVFoundation for capturing still images. My AVCaptureVideoPreviewLayer has AVLayerVideoGravityResizeAspectFill video gravity thus making preview picture which is shown to the user to be cropped from the top and from the bottom parts. When user is pressing "Capture" button, the image actually captured is differs from the preview picture shown to user. My question is how to crop captured image accordingly? Thanks in advance. I used UIImage+Resize category provided in here with