In this post I will outline the process I used to setup a streaming usb webcam with a web server running php on a TPLink TL-WR703N running OpenWrt.
Webcam
First we will setup the webcam and make sure that we can view the stream on the lan. Note: When you setup the webcam make sure that you set it up on a different port than the one that you want the web server on. I put the webcam on port 8081 and the web server on port 8080. You can do this by editing the following file:
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/etc/config/mjpg-streamer |
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Config mjpg-streamer core option device "/dev/video0" option resolution "640x480" option fps "5" option port "8080" option enabled "true" |
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Web Server
Next we will install a web server, I used lighttpd.
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opkg update opkg install lighttpd lighttpd-mod-cgi |
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Now lets edit the configuration file:
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/etc/lighttpd/lighttpd.conf |
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Enable the mod_cgi module:
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server.modules = ( [..] "mod_cgi" [..] } |
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Allow index.php as index:
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index-file.names = ("index.html","default.html","index.htm","default.htm","index.php") |
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Set the server root directory:
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server.document-root = "/www/pub_www/" |
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Set the server port:
Under CGI Module add:
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cgi.assign = (".php => "/usr/bin/php") |
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Create a new folder for the document root:
Start lighttpd:
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/etc/init.d/lighttpd start |
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Or have lighttpd start on startup:
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/etc/init.d/lighttpd enable |
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PHP Server
Now lets setup the php server. I installed PHP4 because it is a much smaller package.
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opkg update opkg install php4 php4-cgi |
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Edit the config file:
Setup the root folder:
To test the php setup we will create the file /www/pub_www/phpinfo.php with the following content:
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<?php php phpinfo() ?>; |
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Now restart the server:
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/etc/init.d/lighttpd restart |
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Browse to the phpinfo.php page (http://192.168.1.1:8080/phpinfo.php)
PHP Webcam Page
Now we will create a php page that includes the webcam stream.
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<?php /* Usage: <img src="thisfile.php"> */ $server = "localhost"; // camera server $port = 8081; // camera server port $url = "/?action=stream"; // url on camera server $fp = fsockopen($server, $port, $errno, $errstr, 30); if( !$fp ){ echo "$errstr ($errno)<br />n"; }else{ $urlstring = "GET ".$url." HTTP/1.0rnrn"; fwrite( $fp, $urlstring ); while( $str = trim( fgets( $fp, 4096 ) ) )header( $str ); fpassthru( $fp ); fclose( $fp ); } ?> |
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Firewall Setup
Once the server is all setup we will configure the firewall so that it is accessible from the wan.
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config redirect option src wan option src_dport 80 option dest lan option dest_ip 192.168.1.1 option dest_port 8000 option proto tcp config rule option src wan option dest_port 8000 option target ACCEPT option proto tcp |
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Now restart the firewall:
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/etc/init.d/firewall restart |
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