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I'm writing some frames to video with AVAssetWriterInputPixelBufferAdaptor, and when I write a lot of frames my app crashes because of memory allocation. How can I prevent that? Here is the code: AVAssetWriterInput *writerInput = [AVAssetWriterInput assetWriterInputWithMediaType:AVMediaTypeVideo outputSettings:videoSettings]; NSDictionary *sourcePixelBufferAttributesDictionary = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithInt:kCVPixelFormatType_32ARGB], kCVPixelBufferPixelFormatTypeKey, nil]; AVAssetWriterInputPixelBufferAdaptor *adaptor = [AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput:writerInput sourcePixelBufferAttributes:sourcePixelBufferAttributesDictionary]; CVPixelBufferRef buffer = NULL; buffer = (CVPixelBufferRef)[self pixelBufferFromCGImage:[tmpImg CGImage] size:size]; if (buffer) { if(![adaptor appendPixelBuffer:buffer withPresentationTime:presentTime]) NSLog(@"FAIL"); else NSLog(@"Success:%d",i); CFRelease(buffer); } When using Xcode Instruments, the leak seems to occur in if(![adaptor appendPixelBuffer:buffer withPresentationTime:presentTime]) (the AVAssetWriterInputPixelBufferAdaptor ) Could really use some assistance or a pointer to a working example. Thanks!

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