mjpeg-streamer的移植

在编译之前先安装必要的库
在ubuntu12.04下
$ sudo apt-get install libjpeg8-dev imagemagick libv4l-dev
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另外：
The videodev.h header file that MJPG-Streamer needs has been replaced with a videodev2.h. To make MJPG-Streamer happy you have to create a symbolic link:
做个软链接
$ sudo ln -s /usr/include/linux/videodev2.h /usr/include/linux/videodev.h
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1 下载mjpeg-streamer  mjpg-streamer-code-182.zip  r63版本有点老 编译会有很多问题
   wget http://sourceforge.net/code-snap ... reamer-code-182.zip
2 修改Makefile
  CC = ARM-linux-gnueabihf-gcc
3 编译
  make USE_LIBV4L2=true clean all
  错误：
mjpg_streamer.c:27:28: fatal error: linux/videodev.h: No such file or directory
        compilation terminated.
  解决：根据mjpg-streamer的文档，编译需要libjpeg，但是mjpg-streamer的代码依赖是libjpeg7的，我们使用的是libjpeg8，文件名不同，所以要做一个软连接
  
sudo ln -s /usr/include/libv4l1-videodev.h  /usr/include/linux/videodev.h
  
3 编译成功会生成相关文件
4  安装 MJPG-Streamer
$ sudo make install
输出信息如下：
make install
install --mode=755 mjpg_streamer /usr/local/bin
install --mode=644 input_uvc.so output_file.so output_udp.so output_http.so input_testpicture.so input_file.so /usr/local/lib/
install --mode=755 -d /usr/local/www
install --mode=644 -D www/* /usr/local/www
5 启动 camera
$ mkdir /tmp/stream
$mjpg_streamer -i "/usr/local/lib/input_uvc.so -d /dev/video0 -y -r 320x240 -f 15" -o "/usr/local/lib/output_http.so -p 8090 -w /usr/local/www/"

启动信息如下：
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root@ubuntu:/home/ubuntu/sample/test#  mjpg_streamer -i "/usr/local/lib/input_uvc.so -d /dev/video0 -y -r 320x240 -f 15" -o "/usr/local/lib/output_http.so -p 8090 -w /usr/local/www/"
MJPG Streamer Version: svn rev: exported
i: Using V4L2 device.: /dev/video0
i: Desired Resolution: 320 x 240
i: Frames Per Second.: 15
i: Format............: YUV
i: JPEG Quality......: 80
Adding control for Pan (relative)
UVCIOC_CTRL_ADD - Error: Inappropriate ioctl for device
Addi[  745.514720] uvcvideo: Failed to query (GET_DEF) UVC control 13 on unit 1: -32 (exp. 8).
ng control for Tilt (relative)
UVCIOC_CTRL_ADD - Error: Inappropriate ioctl for device
Adding control for Pan Reset
UVCIOC_CTRL_ADD - Error: Inappropriate ioctl for device
Adding control for Tilt Reset
UVCIOC_CTRL_ADD - Error: Inappropriate ioctl for device
Adding control for Pan/tilt Reset
UVCIOC_CTRL_ADD - Error: Inappropriate ioctl for device
Adding control for Focus (absolute)
UVCIOC_CTRL_ADD - Error: Inappropriate ioctl for device
mapping control for Pan (relative)
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for Tilt (relative)
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for Pan Reset
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for Tilt Reset
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for Pan/tilt Reset
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for Focus (absolute)
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for LED1 Mode
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for LED1 Frequency
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for Disable video processing
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for Raw bits per pixel
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
o: www-folder-path...: /usr/local/www/
o: HTTP TCP port.....: 8090
o: username:password.: disabled
o: commands..........: enabled
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6 在浏览器中浏览视频
http://192.168.1.122:8090/
此时就可以在浏览器中看到视频信息