说明：  网上大多数linux/unix视频采集程序都是基于video4linux的.而基于V4L2的程序比较少. 本人自己写的基于video4linux2(V4L2)的视频采集程序.已经测试成功.编译请用GCC,或者交叉编译器arm-gcc之类.
(linux/unix Video Collection procedures are based on the video4linux The. For the V4L2 the procedure is relatively small. I wrote it myself on video4linux2 (V4L 2) Video Collection procedures. has been tested successfully. Please GCC compiler. or cross compiler arm-like gcc.)