用的是ov的摄像头,在用xawtv打开时,可以看到捕获的画面还算流畅. 自己改编了一个video4linux的程序,但是效率很低 从ioctl (dev, VIDIOCMCAPTURE, &vid_mmap) 到ioctl (dev, VIDIOCSYNC, &vid_mmap.frame) 程序运行一共用了0.25s左右-use the ov cameras, on the xawtv opened, can see the screen capture fairly flue

xawtv绝版源码，适合初学v4l编程者-xawtv out-of-print source, suitable for novice programmers v4l

基于Linux系统的摄像头UVC测试程序 实现简单的视频录像拍照等功能(Linux camera based on the UVC test procedures, simple video, video and other functions)