text: //
  //  PBJVisionUtilities.h
  //  PBJVision
  //
  //  Created by Patrick Piemonte on 5/20/13.
  //  Copyright (c) 2013-present, Patrick Piemonte, http://patrickpiemonte.com
  //
  //  Permission is hereby granted, free of charge, to any person obtaining a copy of
  //  this software and associated documentation files (the "Software"), to deal in
  //  the Software without restriction, including without limitation the rights to
  //  use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
  //  the Software, and to permit persons to whom the Software is furnished to do so,
  //  subject to the following conditions:
  //
  //  The above copyright notice and this permission notice shall be included in all
  //  copies or substantial portions of the Software.
  //
  //  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  //  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
  //  FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
  //  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  //  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  //  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  //
  
  #import <Foundation/Foundation.h>
  #import <AVFoundation/AVFoundation.h>
  
  @interface PBJVisionUtilities : NSObject
  
  // devices and connections
  
  + (AVCaptureDevice *)captureDeviceForPosition:(AVCaptureDevicePosition)position;
  + (AVCaptureDevice *)audioDevice;
  + (AVCaptureConnection *)connectionWithMediaType:(NSString *)mediaType fromConnections:(NSArray *)connections;
  
  // sample buffers
  
  + (CMSampleBufferRef)createOffsetSampleBufferWithSampleBuffer:(CMSampleBufferRef)sampleBuffer withTimeOffset:(CMTime)timeOffset;
  
  + (UIImage *)uiimageFromJPEGData:(NSData *)jpegData;
  
  // orientation
  
  + (UIImageOrientation)uiimageOrientationFromExifOrientation:(NSInteger)exifOrientation;
  + (CGFloat)angleOffsetFromPortraitOrientationToOrientation:(AVCaptureVideoOrientation)orientation;
  
  // storage
  
  + (uint64_t)availableStorageSpaceInBytes;
  
  @end
  
  @interface NSString (PBJExtras)
  
  + (NSString *)PBJformattedTimestampStringFromDate:(NSDate *)date;
  
  @end
  