1、trecorderdemo只支持显示到LCD ， camerademo 只支持拍照，
2、用 mjpg_streamer 报错以下信息：
root@TinaLinux:/# mjpg_streamer -i "input_uvc.so -y -r 640x480 -d /dev/video0 -f
10" -o "output_http.so -w /www/webcam"
MJPG-streamer [239]: starting application
MJPG Streamer Version: svn rev: Unversioned directory
MJPG-streamer [239]: MJPG Streamer Version: svn rev: Unversioned directory
i: Using V4L2 device.: /dev/video0
MJPG-streamer [239]: Using V4L2 device.: /dev/video0
i: Desired Resolution: 640 x 480
MJPG-streamer [239]: Desired Resolution: 640 x 480
i: Frames Per Second.: 10
MJPG-streamer [239]: Frames Per Second.: 10
i: Format............: YUYV
MJPG-streamer [239]: Format............: YUYV
i: JPEG Quality......: 80
MJPG-streamer [239]: JPEG Quality......: 80
i: TV-Norm...........: DEFAULT
MJPG-streamer [239]: TV-Norm...........: DEFAULT
ERROR opening V4L interface: No such file or directory
Init v4L2 failed !! exit fatal
i: init_VideoIn failed
MJPG-streamer [239]: init_VideoIn failed
root@TinaLinux:/#
想在t113 搭建 http 服务器 ，客户端访问网页直接显示 摄像头捕获的图像