RTCRtpSender-getParameters.html (2004B)
1 <!doctype html> 2 <meta charset=utf-8> 3 <title>RTCRtpSender.prototype.getParameters</title> 4 <script src="/resources/testharness.js"></script> 5 <script src="/resources/testharnessreport.js"></script> 6 <script src="dictionary-helper.js"></script> 7 <script src="RTCPeerConnection-helper.js"></script> 8 <script src="RTCRtpParameters-helper.js"></script> 9 <script> 10 'use strict'; 11 12 promise_test(async t => { 13 const stream = await getNoiseStream({video: true}); 14 t.add_cleanup(() => stream.getTracks().forEach(track => track.stop())); 15 const [track] = stream.getTracks(); 16 const caller = new RTCPeerConnection(); 17 t.add_cleanup(() => caller.close()); 18 caller.addTrack(track); 19 const callee = new RTCPeerConnection(); 20 t.add_cleanup(() => callee.close()); 21 callee.addTrack(track); 22 var callerSender = caller.getTransceivers()[0].sender; 23 assert_equals(callerSender.getParameters().codecs.length, 0); 24 assert_equals(callerSender.getParameters().headerExtensions.length, 0, 25 "caller header extensions before offer"); 26 const offer = await caller.createOffer(); 27 await caller.setLocalDescription(offer); 28 await callee.setRemoteDescription(offer); 29 // Check that it is a single 2-way transceiver. 30 assert_equals(callee.getTransceivers().length, 1); 31 var calleeSender = callee.getTransceivers()[0].sender; 32 assert_equals(calleeSender.getParameters().codecs.length, 0); 33 const answer = await callee.createAnswer(); 34 await callee.setLocalDescription(answer); 35 assert_greater_than(calleeSender.getParameters().codecs.length, 0, 36 "callee codecs after answer"); 37 await caller.setRemoteDescription(answer); 38 assert_greater_than(callerSender.getParameters().codecs.length, 0, 39 "caller codecs after answer"); 40 assert_greater_than(callerSender.getParameters().headerExtensions.length, 0, 41 "caller header extensions after answer"); 42 }, 'getParameters() surfaces codecs on two-way sender with addTrack at the right time'); 43 44 </script>