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metalx1000

Basic Webcam Video Stream to Canvas - with Effects - FX

metalx1000
Jul 23rd, 2013
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  1. <!DOCTYPE html>
  2. <html>
  3. <head>
  4.     <!--Based on Code from http://blog.teamtreehouse.com/accessing-the-device-camera-with-getusermedia-->
  5.   <title>Basic Webcam Video Stream to Canvas - with Effects - FX</title>
  6.     <style>
  7.     body {
  8.       background: #F7F7F7;
  9.       margin: 0;
  10.       padding: 0;
  11.     }
  12.  
  13.     #video-container {
  14.       margin: 2em auto 0;
  15.       width: 500px;
  16.       padding: 2em;
  17.       background: white;
  18.       -webkit-box-shadow: 0 1px 10px #D9D9D9;
  19.       -moz-box-shadow: 0 1px 10px #D9D9D9;
  20.       -ms-box-shadow: 0 1px 10px #D9D9D9;
  21.       -o-box-shadow: 0 1px 10px #D9D9D9;
  22.       box-shadow: 0 1px 10px #D9D9D9;
  23.     }
  24.  
  25.         #camera-stream {
  26.             //-webkit-filter: sepia(1);
  27.             //-webkit-filter: blur(3px);
  28.             //-webkit-filter: grayscale(1);
  29.             //-webkit-filter: sepia(1);
  30.             //-webkit-filter: brightness(2.5);
  31.             //-webkit-filter: contrast(5);
  32.             //-webkit-filter: hue-rotate(125deg);
  33.             //-webkit-filter: invert(1);
  34.             //-webkit-filter: saturate(3);
  35.             //-webkit-filter: opacity(0.3);  
  36.         }
  37.     </style>
  38. </head>
  39. <body>
  40.   <div id="video-container">
  41.     <video id="camera-stream" width="500" autoplay></video>
  42.   </div>
  43.     <script>
  44.         window.onload = function() {
  45.        
  46.           // Normalize the various vendor prefixed versions of getUserMedia.
  47.           navigator.getUserMedia = (navigator.getUserMedia ||
  48.                                     navigator.webkitGetUserMedia ||
  49.                                     navigator.mozGetUserMedia ||
  50.                                     navigator.msGetUserMedia);
  51.        
  52.             if (navigator.getUserMedia) {
  53.               // Request the camera.
  54.               navigator.getUserMedia(
  55.                 // Constraints
  56.                 {
  57.                   video: true
  58.                 },
  59.        
  60.                 // Success Callback
  61.                 function(localMediaStream) {
  62.                     // Get a reference to the video element on the page.
  63.                     var vid = document.getElementById('camera-stream');
  64.        
  65.                     // Create an object URL for the video stream and use this
  66.                     // to set the video source.
  67.                     vid.src = window.URL.createObjectURL(localMediaStream);
  68.        
  69.                 },
  70.        
  71.                 // Error Callback
  72.                 function(err) {
  73.                   // Log the error to the console.
  74.                   console.log('The following error occurred when trying to use getUserMedia: ' + err);
  75.                 }
  76.               );
  77.  
  78.             } else {
  79.               alert('Sorry, your browser does not support getUserMedia');
  80.             }
  81.  
  82.         }  
  83.     </script>
  84. </body>
  85. </html>
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