linux下面视频的采集，h264硬编码，可以直接使用gcc编译就可以采集视频流。-The following video capture in linux, h264 hard-coded, you can directly use the gcc compiler can capture video streams.

强大经典的共享内存库.利用循环BUF解决进程之间的视频流传输问题,零拷贝.-Powerful classic shared memory libraries. Use recycled BUF settlement process between the video streaming issues, zero-copy.