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    <p>I got it all working! With the options dictionary set to compatibility, they say its possible to use the Buffer pool, Here is working samples and Code for writing without the buffer, but its a good place to start.</p> <p>Here is the sample code <a href="https://github.com/RudyAramayo/AVAssetWriterInputPixelBufferAdaptorSample" rel="nofollow">link</a></p> <p>Here is the code you need:</p> <pre><code>- (void) testCompressionSession { CGSize size = CGSizeMake(480, 320); NSString *betaCompressionDirectory = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/Movie.m4v"]; NSError *error = nil; unlink([betaCompressionDirectory UTF8String]); //----initialize compression engine AVAssetWriter *videoWriter = [[AVAssetWriter alloc] initWithURL:[NSURL fileURLWithPath:betaCompressionDirectory] fileType:AVFileTypeQuickTimeMovie error:&amp;error]; NSParameterAssert(videoWriter); if(error) NSLog(@"error = %@", [error localizedDescription]); NSDictionary *videoSettings = [NSDictionary dictionaryWithObjectsAndKeys:AVVideoCodecH264, AVVideoCodecKey, [NSNumber numberWithInt:size.width], AVVideoWidthKey, [NSNumber numberWithInt:size.height], AVVideoHeightKey, nil]; AVAssetWriterInput *writerInput = [AVAssetWriterInput assetWriterInputWithMediaType:AVMediaTypeVideo outputSettings:videoSettings]; NSDictionary *sourcePixelBufferAttributesDictionary = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithInt:kCVPixelFormatType_32ARGB], kCVPixelBufferPixelFormatTypeKey, nil]; AVAssetWriterInputPixelBufferAdaptor *adaptor = [AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput:writerInput sourcePixelBufferAttributes:sourcePixelBufferAttributesDictionary]; NSParameterAssert(writerInput); NSParameterAssert([videoWriter canAddInput:writerInput]); if ([videoWriter canAddInput:writerInput]) NSLog(@"I can add this input"); else NSLog(@"i can't add this input"); [videoWriter addInput:writerInput]; [videoWriter startWriting]; [videoWriter startSessionAtSourceTime:kCMTimeZero]; //--- // insert demo debugging code to write the same image repeated as a movie CGImageRef theImage = [[UIImage imageNamed:@"Lotus.png"] CGImage]; dispatch_queue_t dispatchQueue = dispatch_queue_create("mediaInputQueue", NULL); int __block frame = 0; [writerInput requestMediaDataWhenReadyOnQueue:dispatchQueue usingBlock:^{ while ([writerInput isReadyForMoreMediaData]) { if(++frame &gt;= 120) { [writerInput markAsFinished]; [videoWriter finishWriting]; [videoWriter release]; break; } CVPixelBufferRef buffer = (CVPixelBufferRef)[self pixelBufferFromCGImage:theImage size:size]; if (buffer) { if(![adaptor appendPixelBuffer:buffer withPresentationTime:CMTimeMake(frame, 20)]) NSLog(@"FAIL"); else NSLog(@"Success:%d", frame); CFRelease(buffer); } } }]; NSLog(@"outside for loop"); } - (CVPixelBufferRef )pixelBufferFromCGImage:(CGImageRef)image size:(CGSize)size { NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithBool:YES], kCVPixelBufferCGImageCompatibilityKey, [NSNumber numberWithBool:YES], kCVPixelBufferCGBitmapContextCompatibilityKey, nil]; CVPixelBufferRef pxbuffer = NULL; CVReturn status = CVPixelBufferCreate(kCFAllocatorDefault, size.width, size.height, kCVPixelFormatType_32ARGB, (CFDictionaryRef) options, &amp;pxbuffer); // CVReturn status = CVPixelBufferPoolCreatePixelBuffer(NULL, adaptor.pixelBufferPool, &amp;pxbuffer); NSParameterAssert(status == kCVReturnSuccess &amp;&amp; pxbuffer != NULL); CVPixelBufferLockBaseAddress(pxbuffer, 0); void *pxdata = CVPixelBufferGetBaseAddress(pxbuffer); NSParameterAssert(pxdata != NULL); CGColorSpaceRef rgbColorSpace = CGColorSpaceCreateDeviceRGB(); CGContextRef context = CGBitmapContextCreate(pxdata, size.width, size.height, 8, 4*size.width, rgbColorSpace, kCGImageAlphaPremultipliedFirst); NSParameterAssert(context); CGContextDrawImage(context, CGRectMake(0, 0, CGImageGetWidth(image), CGImageGetHeight(image)), image); CGColorSpaceRelease(rgbColorSpace); CGContextRelease(context); CVPixelBufferUnlockBaseAddress(pxbuffer, 0); return pxbuffer; } </code></pre>
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