用摄像头进行条码扫描识别，精选ios编程学习源码，很好的参考资料。-For barcode scanning recognition using the camera, select learning IOS programming source code, a good reference.

获取本地视频库和获取摄像头视频流 VideoUpload，精选ios编程学习源码，很好的参考资料。-To obtain the local video library and video camera access flow VideoUpload, select learning IOS programming source code, a good reference.