《基于v4l2的webcam应用, 本地预监》 http://blog.csdn.net/sunkwei/article/details/6530343# 一个webcam_v4l2的演示：包含两部分： 1. webcam_server: 抓v4l2, 压缩，发送 2. webcam_shower: 接收，解压，回放-" Consists of two parts: v4l2 webcam application, the local pre su

linux v4l2 camera driver unit test, grab stream into a jpeg picture on you file system

抓取 usb摄像头图片，如果是mjpeg模式图片保存为*.mjpg,如果是yuyv模式图片保存为*.yuv,每次运行抓取六张图片。 usb_test只是用来测试的。不同usb摄像头可能会报错。(Grab USB camera pictures, if it is MJPEG mode, save the picture as *.mjpg, if it is yuyv mode, save the picture as *.yuv, each run grab six pictures.)