gistfile1.m

- (void) captureStillImage
{
    AVCaptureConnection *stillImageConnection = [AVCamUtilities connectionWithMediaType:AVMediaTypeVideo fromConnections:[[self stillImageOutput] connections]];
    if ([stillImageConnection isVideoOrientationSupported])
        [stillImageConnection setVideoOrientation:orientation];
    
    [[self stillImageOutput] captureStillImageAsynchronouslyFromConnection:stillImageConnection
                                                         completionHandler:^(CMSampleBufferRef imageDataSampleBuffer, NSError *error) {
															 
															 ALAssetsLibraryWriteImageCompletionBlock completionBlock = ^(NSURL *assetURL, NSError *error) {
																 if (error) {
                                                                     if ([[self delegate] respondsToSelector:@selector(captureManager:didFailWithError:)]) {
                                                                         [[self delegate] captureManager:self didFailWithError:error];
                                                                         }
																 }
															 };
															 
															 if (imageDataSampleBuffer != NULL) {
																 NSData *imageData = [AVCaptureStillImageOutput jpegStillImageNSDataRepresentation:imageDataSampleBuffer];
																 ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
																 
                                                                 UIImage *image = [[UIImage alloc] initWithData:imageData];
																 [library writeImageToSavedPhotosAlbum:[image CGImage]
																						   orientation:(ALAssetOrientation)[image imageOrientation]
																					   completionBlock:completionBlock];
																 [image release];
																 
																 [library release];
															 }
															 else
																 completionBlock(nil, error);
															 
															 if ([[self delegate] respondsToSelector:@selector(captureManagerStillImageCaptured:)]) {
																 [[self delegate] captureManagerStillImageCaptured:self];
															 }
                                                         }];
}