Video Capture Capabilities available on chrome://media-internals

content/browser/resources/media/client_renderer.js

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var ClientRenderer = (function() {
   var ClientRenderer = function() {
     this.playerListElement = document.getElementById('player-list');
     this.propertiesTable =
         document.getElementById('property-table').querySelector('tbody');
     this.logTable = document.getElementById('log').querySelector('tbody');
@@ skipping 104 matching lines @@
       if (player === this.selectedPlayer) {
         this.drawProperties_(player.properties);
         this.drawLog_();
         this.drawGraphs_();
       }
       if (key === 'name' || key === 'url') {
         this.redrawPlayerList_(players);
       }
     },
 
+    redrawVideoCaptureCapabilities: function(videoCaptureCapabilities, keys) {
+      var copyButtonElement =
+          document.getElementById('video-capture-capabilities-copy-button');
+      copyButtonElement.onclick = function() {
+        window.prompt('Copy to clipboard: Ctrl+C, Enter',
+                      JSON.stringify(videoCaptureCapabilities))
+      }
+
+      var videoTableBodyElement  =
+          document.getElementById('video-capture-capabilities-tbody');
+      removeChildren(videoTableBodyElement);
+
+      for (var component in videoCaptureCapabilities) {
+        var tableRow =  document.createElement('tr');
+        var device = videoCaptureCapabilities[ component ];
+        for (var i in keys) {
+          var value = device[keys[i]];
+          var tableCell = document.createElement('td');
+          var cellElement;
+          if ((typeof value) == (typeof [])) {
+            cellElement = document.createElement('ul');
+            for (var i in value) {
+              var format = value[i];
+              var li = document.createElement('li');
+              li.appendChild(document.createTextNode(format))
+              cellElement.appendChild(li)
+            }
+          } else {
+            cellElement = document.createTextNode(
+                ((typeof value) == 'undefined') ? 'n/a' : value);
+          }
+          tableCell.appendChild(cellElement)
+          tableRow.appendChild(tableCell);
+        }
+        videoTableBodyElement.appendChild(tableRow);
+      }
+    },
+
     redrawAudioComponentList_: function(componentType, components) {
       function redrawList(renderer, baseName, element) {
         var fragment = document.createDocumentFragment();
         for (id in components) {
           var li = document.createElement('li');
           var friendlyName = baseName + ' ' + id;
           li.appendChild(createButton(
               friendlyName, renderer.selectAudioComponent_.bind(
                   renderer, componentType, id, components[id], friendlyName)));
           fragment.appendChild(li);
@@ skipping 222 matching lines @@
       if (this.selectedPlayer) {
         removeChildren(this.logTable);
         this.selectedPlayerLogIndex = 0;
         this.drawLog_();
       }
     },
   };
 
   return ClientRenderer;
 })();