这是一个linux下的视频采集编程，这是从linuxtv官网的一个视频采集的例子，基于v4l2标准采集，在linux下编译后就可以直接运行了。-This is a video capture program under linux, this is an example of a video the official website of the acquisition linuxtv based v4l2 standard collection, compiled in linux can

linux平台实现Usb摄像头采集图像,采用V4L2驱动实现。-Implementation of Usb camera image acquisition Linux platform, using the V4L2 driver implementation.