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--- webcam:mjpeg [2008/10/28 12:13] – gerald
+++ webcam:mjpeg [2008/10/28 12:56] – gerald
@@ Zeile 1: / Zeile 1: @@
-MJPEG Webcam
+MJPEG Webcam EDImax IC1500
+[[http://ic1500.wikispaces.com/|Wiki for the EDImax IC-1500 IP Camera]]
 Chinesische Billigwebcam mit WLAN
@@ Zeile 49: / Zeile 51: @@
 Das Plugin ist von der Firma 'Edimax' und ist anscheinend für den IE geschrieben. Dort funktioniert es aber auch nicht richtig, der IE beschwert sich über Fehler auf den Seiten.
+Ruby-Skript, um Bilder zu catchen: Quelle((http://spodzone.org.uk/packages/hawking-HNC230G.txt))
+<code ruby>
+#!/usr/bin/env ruby
+# Script to extract images from the Hawking HNC230G
+#
+# Copyright (C) Tim Haynes
+# HNC230G{at}stirfried.vegetable.org.uk    http://pig.sty.nu/
+#
+# Redistributable under the terms of the GNU Public License: see
+# <http://www.gnu.org/copyleft/gpl.html>
+#
+# Requires ruby, imagemagick
+#
+nopics=ARGV[1] || "1"
+nopics=nopics.to_i
+require 'socket'
+require 'RMagick'
+xsize,ysize=640,480
+puts "Connecting"
+s=TCPSocket.new('buffalo', 4321)
+nopics.times { |n|
+  puts "Requesting data"
+  s.puts("0110")
+  len=s.read(2).reverse.unpack("v")[0]
+.times {s.getc }
+  puts "Len: #{len}"
+  jpeg=s.read(len)
+  puts "Getting image"
+  img=Magick::Image.from_blob(jpeg)[0];
+  puts "Saving image"
+  img.write("foo-#{n}.jpg")
+}
+</code>
+You can get images from your camera with my PHP script and a web server in the following form:
+ Quelle((http://webserver/Edimax_IC1500.php))
+<code php>
+   <?
+     $login = "admin";
+     $pass = "xxxxxxx";
+     $ip = "aa.bb.cc.dd";
+     $port = "4321";
+     // 120 byte
+     // 3x 0x00,
+     // 1x 0x01,
+     // user name
+     // 1x 0x00,
+     // password,
+     // Nx 0x00,
+     $logincmd = pack(
+        "x3H*a*xa*x" .
+           (120 - 3 - 1 - strlen($login) - 1 - strlen($pass)),
+        "01", $login, $pass);
+     // 120 byte
+     // 3x 0x00,
+     // 1x 0x0e,
+     // Nx 0x00,
+     $framecmd = pack("x3H2x116", "0e");
+     $login_ok_reply = "0c";
+     function error($msg)
+     {
+    global $sock;
+    if ($sock) {
+        fclose($sock);
+    }
+    die($msg);
+     }
+     function request($sock, $cmd, $len)
+     {
+    $ret = fwrite($sock, $cmd, $len);
+    if (!$ret) {
+        error("request()/fwrite()==FALSE");
+    }
+    if ($ret != $len) {
+        error("request()/fwrite(): written: {$len}/{$ret}");
+    }
+    fflush($sock);
+     }
+ /*
+     function dump($data, $file)
+     {
+    $f = fopen($file, "wb");
+    if (!$f) {
+        error("dump()/fopen()");
+    }
+    $ret = fwrite($f, $data);
+    if (!$ret) {
+        error("dump()/fwrite()");
+    }
+    fclose($f);
+     }
+ */
+     $sock = fsockopen("tcp://$ip", $port);
+     if (!$sock) {
+    error("fsockopen(tcp://$ip:$port)");
+     }
+     // 350ms
+     stream_set_timeout($sock, 0, 350000);
+     request($sock, $logincmd, 120);
+     //echo("login request sent\n");
+     $ret = stream_get_contents($sock, 120);
+     //echo("login reply received\n");
+     if (strlen($ret) != 120) {
+    error("Error in reply for login. size:120/" . strlen($ret));
+     }
+     //dump($ret, "0.dump");
+     $reply = unpack("H*", $ret[3]);
+     if ($reply[1] != $login_ok_reply) {
+    error("Login incorrect!");
+     }
+     //echo("OK\n");
+     request($sock, $framecmd, 120);
+     //echo("get frame request sent\n");
+     // 6 fix byte
+     $ret = fread($sock, 6);
+     if (!$ret) {
+    error("Frame signature fread()==FALSE");
+     }
+     //dump($ret, "1.dump");
+     $sig = unpack("H*", $ret);
+     if ($sig[1] != "000700060000") {
+    error("Frame signature incorrect");
+     }
+     //echo("frame signature ok\n");
+     // 2 byte: jpeg size.
+     $ret = fread($sock, 2);
+     if (!$ret) {
+    error("Frame size fread()==FALSE");
+     }
+     //dump($ret, "2.dump");
+     $unpacked = unpack("H*", $ret);
+     sscanf($unpacked[1], "%04x", $frame_size);
+     //echo("frame_size = $frame_size\n");
+     // 20 byte ???.
+     $ret = fread($sock, 20);
+     if (!$ret) {
+    error("Skip before frame fread()==FALSE");
+     }
+     // JPEG: $frame_size byte.
+     $ret = stream_get_contents($sock, $frame_size);
+     if (!$ret) {
+    error("Frame data stream_get_contents()==FALSE");
+     }
+     if (strlen($ret) != $frame_size) {
+    error("Frame data stream_get_contents() size: " .
+       "{$frame_size}/" . strlen($ret));
+     }
+     header("Content-Type: image/jpeg");
+     header("Content-Length: $frame_size");
+     header("Content-Disposition: inline; filename=current.jpg");
+     echo($ret);
+     fclose($sock);
+ ?></code>
+Uff! Finally, habs ichs rausgefunden:
+<code>
+// Bild:
+http://gerald.webhop.org:14322/snapshot.jpg
+// stream:
+http://gerald.webhop.org:14322/snapshot.cgi
+</code>
+Vom Hersteller EdiMax gibt es auch die Software als OpenSource ((http://www.edimax.com/images/Image/OpenSourceCode/Wireless/IPCamera/IC-1500wg/IC1500_RTL865X.tar.gz))
+Mit einer URL alle Parameter verstellen:
+[[http://admin:1234@192.168.2.3/form/camera?resolution=0&quality=3&framerate=25&frequency=0&autoexposure=ON&b_value=35&c_value=50&s_value=50&h_value=50&w_value=10&enet_source=camera_left.asp]]

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