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1 <!doctype html> | |
2 <html> | |
3 <head> | |
4 <title>Retrieving a track from a MediaStream</title> | |
5 <link rel="author" title="Dominique Hazael-Massieux" href="mailto:dom@w3.org"/> | |
6 <link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#wi
dl-MediaStream-getTrackById-MediaStreamTrack-DOMString-trackId"> | |
7 </head> | |
8 <body> | |
9 <p class="instructions">When prompted, accept to share your video stream.</p> | |
10 <h1 class="instructions">Description</h1> | |
11 <p class="instructions">This test checks that MediaStream.getTrackById behaves a
s expected</p> | |
12 | |
13 <div id='log'></div> | |
14 <script src=/resources/testharness.js></script> | |
15 <script src=/resources/testharnessreport.js></script> | |
16 <script src="/common/vendor-prefix.js" data-prefixed-objects='[{"ancestors":["na
vigator"], "name":"getUserMedia"}]'></script> | |
17 <script> | |
18 var t = async_test("Tests that MediaStream.getTrackById works as expected", {tim
eout: 10000}); | |
19 t.step(function () { | |
20 navigator.getUserMedia( | |
21 {video: true}, | |
22 t.step_func(gotVideo), | |
23 t.step_func(function (error) { | |
24 assert_unreached('Unexpected getUserMedia error: ' + error); | |
25 })); | |
26 function gotVideo(stream) { | |
27 var track = stream.getVideoTracks()[0]; | |
28 assert_equals(track, stream.getTrackById(track.id), "getTrackById returns tr
ack of given id"); | |
29 assert_equals(stream.getTrackById(track.id + "foo"), null, "getTrackById of
inexistant id returns null"); | |
30 t.done(); | |
31 } | |
32 }); | |
33 </script> | |
34 </body> | |
35 </html> | |
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