IOS 上YUV图像显示相关参考

http://stackoverflow.com/questions/8476821/repeated-scene-items-in-ios-yuv-video-capturing-output

http://stackoverflow.com/questions/4359727/iphone-yuv-channel-orientation

http://blog.csdn.net/linzhiji/article/details/6750791

http://stackoverflow.com/questions/11093061/yv12-to-rgb-using-glsl-in-ios-result-image-attached