1、先开启摄像头

sudo raspi-confug

找到 interface option - camera,enable
重启

 sudo reboot

2、装必要的库

sudo apt-get update
sudo apt-get -y install subversion
sudo apt-get -y install libjpeg8-dev
sudo apt-get -y install imagemagick
sudo apt-get -y install libv4l-dev
sudo apt-get -y install cmake
sudo apt-get -y install git

注：如果出现以下错误，说明是源不对
列软件包有未 (源不对)

下列软件包有未满足的依赖关系：

 libv4l-dev : 依赖: libv4l-0 (= 1.12.3-1) 但是 1.16.3-3 正要被安装
              依赖: libv4lconvert0 (= 1.12.3-1) 但是 1.16.3-3 正要被安装
              依赖: libv4l2rds0 (= 1.12.3-1) 但是 1.16.3-3 正要被安装

3、下载mjpg-streamer

sudo git clone https://github.com/jacksonliam/mjpg-streamer.git
cd mjpg-streamer/mjpg-streamer-experimental
sudo make all
sudo make install

要cd mjpg-streamer/mjpg-streamer-experimental进入里面之后才能输入以下的内容

csi摄像头用这个命令

./mjpg_streamer -i "./input_raspicam.so" -o "./output_http.so -w ./www"

usb摄像头用这个命令

./mjpg_streamer -i "./input_uvc.so" -o "./output_http.so -w ./www"

加权限

chmod 744 jk.sh

执行脚本命令:

./ jk.sh

这样就能运行摄像头了!!!!!

注:

使用下面指令启动普通USB摄像头：

./mjpg_streamer -i "./input_uvc.so" -o "./output_http.so -w ./www"

启动树莓派专用摄像头RaspiCamera的指令是：( CSI摄像头 )

./mjpg_streamer -i "./input_raspicam.so" -o "./output_http.so -w ./www"

如果需要改变摄像头的帧率 以及大小 请自行修改启动脚本

例如

i "./input_raspicam.so" 这个可以带参数的 i "./input_raspicam.so -fps 3 -x 320 -y 240"

启动之后

默认访问地址是http://<树莓派IP>:8080访问的是索引

通过nat123 可以实现内网映射,实现外网监控

如果想修改端口请修改-o "./output_http.so -w ./www" 为 -o "./output_http.so -w ./www -p 81"

即访问地址是 http://<树莓派IP>:81/

附参数:

MJPG Streamer Version.: 2.0
raspicam input plugin: option '--x' requires an argument
 ---------------------------------------------------------------
 Help for input plugin..: raspicam input plugin
 ---------------------------------------------------------------
 The following parameters can be passed to this plugin:

 [-fps | --framerate]...: set video framerate, default 5 frame/sec 
 [-x | --width ]........: width of frame capture, default 640
 [-y | --height]........: height of frame capture, default 480 
 [-quality].............: set JPEG quality 0-100, default 85 
 [-usestills]...........: uses stills mode instead of video mode 
 [-preview].............: Enable full screen preview
 [-timestamp]...........: Get timestamp for each frame
 
 -sh  : Set image sharpness (-100 to 100)
 -co  : Set image contrast (-100 to 100)
 -br  : Set image brightness (0 to 100)
 -sa  : Set image saturation (-100 to 100)
 -ISO : Set capture ISO
 -vs  : Turn on video stablisation
 -ev  : Set EV compensation
 -ex  : Set exposure mode (see raspistill notes)
 -awb : Set AWB mode (see raspistill notes)
 -ifx : Set image effect (see raspistill notes)
 -cfx : Set colour effect (U:V)
 -mm  : Set metering mode (see raspistill notes)
 -rot : Set image rotation (0-359)
 -stats : Compute image stats for each picture (reduces noise for -usestills)
 -drc : Dynamic range compensation level (see raspistill notes)
 -hf  : Set horizontal flip
 -vf  : Set vertical flip
 ---------------------------------------------------------------
input_init() return value signals to exit

http://192.168.0.111:8080/?action=stream

http://192.168.0.111:8080/index.html  看索引