Cast Extensions API: Factory method for creating a cast session

chrome/test/data/extensions/api_test/webrtc_cast/basics.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 sendTransport = chrome.webrtc.castSendTransport;
 var tabCapture = chrome.tabCapture;
 var udpTransport = chrome.webrtc.castUdpTransport;
+var createSession = chrome.cast.streaming.createSession;
 
 chrome.test.runTests([
-  function udpTransportCreate() {
-    udpTransport.create(function(udpId) {
-      udpTransport.start(
-          udpId,
-          {address: "127.0.0.1", port: 60613});
-      udpTransport.destroy(udpId);
-      chrome.test.succeed();
-    });
-  },
-  function sendTransportCreate() {
-    tabCapture.capture({audio: true}, function(stream) {
+  function sendTransportStart() {
+    tabCapture.capture({audio: true, video: true}, function(stream) {
       chrome.test.assertTrue(!!stream);
-      udpTransport.create(function(stream, udpId) {
-        sendTransport.create(
-            udpId,
-            stream.getAudioTracks()[0],
-            function(stream, udpId, sendTransportId) {
-          sendTransport.destroy(sendTransportId);
-          udpTransport.destroy(udpId);
-          stream.stop();
-          chrome.test.succeed();
-        }.bind(null, stream, udpId));
+      createSession(stream.getAudioTracks()[0],
+                    stream.getVideoTracks()[0],
+            function(stream, audioId, videoId, udpId) {
+        var audioParams = sendTransport.getCaps(audioId);
+        var videoParams = sendTransport.getCaps(videoId);
+        sendTransport.start(audioId, audioParams);
+        sendTransport.start(videoId, videoParams);
+        sendTransport.stop(audioId);
+        sendTransport.stop(videoId);
+        sendTransport.destroy(audioId);
+        sendTransport.destroy(videoId);
+        udpTransport.destroy(udpId);
+        stream.stop();
+        chrome.test.assertEq(audioParams.payloads[0].codecName, "OPUS");
+        chrome.test.assertEq(videoParams.payloads[0].codecName, "VP8");
+        chrome.test.succeed();
       }.bind(null, stream));
     });
   },
-  function sendTransportGetCapsAudio() {
-    tabCapture.capture({audio: true}, function(stream) {
-      chrome.test.assertTrue(!!stream);
-      udpTransport.create(function(stream, udpId) {
-        sendTransport.create(
-            udpId,
-            stream.getAudioTracks()[0],
-            function(stream, udpId, sendTransportId) {
-          var caps = sendTransport.getCaps(sendTransportId);
-          sendTransport.destroy(sendTransportId);
-          udpTransport.destroy(udpId);
-          stream.stop();
-          chrome.test.assertEq(caps.payloads[0].codecName, "OPUS");
-          chrome.test.succeed();
-        }.bind(null, stream, udpId));
-      }.bind(null, stream));
-    });
-  },
-  function sendTransportStart() {
-    function startId(id) {
-      // TODO(hclam): Give something meaningful for params.
-      var params = {
-        payloads: [],
-        rtcpFeatures: [],
-      };
-      sendTransport.start(id, params);
-    }
-    function cleanupId(id) {
-      sendTransport.stop(id);
-      sendTransport.destroy(id);
-    }
-    tabCapture.capture({audio: true, video: true}, function(stream) {
-      chrome.test.assertTrue(!!stream);
-      udpTransport.create(function(stream, udpId) {
-        // Create a transport for audio.
-        sendTransport.create(
-            udpId,
-            stream.getAudioTracks()[0],
-            function(stream, udpId, audioId) {
-          // Create a transport for video.
-          sendTransport.create(
-              udpId,
-              stream.getVideoTracks()[0],
-              function(stream, udpId, audioId, videoId) {
-            startId(audioId);
-            cleanupId(audioId);
-            startId(videoId);
-            cleanupId(videoId);
-            udpTransport.destroy(udpId);
-            stream.stop();
-            chrome.test.succeed();
-          }.bind(null, stream, udpId, audioId));
-        }.bind(null, stream, udpId));
-      }.bind(null, stream));
-    });
-  },
 ]);