| <!doctype html> |
| <meta charset=utf-8> |
| <title>RTCRtpReceiver.prototype.getParameters</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="dictionary-helper.js"></script> |
| <script src="RTCPeerConnection-helper.js"></script> |
| <script src="RTCRtpParameters-helper.js"></script> |
| <script> |
| 'use strict'; |
| |
| // Test is based on the following editor draft: |
| // https://w3c.github.io/webrtc-pc/archives/20170605/webrtc.html |
| |
| // The following helper functions are called from RTCRtpParameters-helper.js: |
| // validateReceiverRtpParameters |
| |
| /* |
| Validates the RTCRtpParameters returned from RTCRtpReceiver.prototype.getParameters |
| |
| 5.3. RTCRtpReceiver Interface |
| getParameters |
| When getParameters is called, the RTCRtpParameters dictionary is constructed |
| as follows: |
| |
| - The headerExtensions sequence is populated based on the header extensions that |
| the receiver is currently prepared to receive. |
| |
| - The codecs sequence is populated based on the codecs that the receiver is currently |
| prepared to receive. |
| |
| - rtcp.reducedSize is set to true if the receiver is currently prepared to receive |
| reduced-size RTCP packets, and false otherwise. rtcp.cname is left undefined. |
| */ |
| promise_test(async t => { |
| const pc = new RTCPeerConnection(); |
| t.add_cleanup(() => pc.close()); |
| pc.addTransceiver('audio'); |
| const callee = await doOfferAnswerExchange(t, pc); |
| const param = callee.getTransceivers()[0].receiver.getParameters(); |
| validateReceiverRtpParameters(param); |
| |
| assert_greater_than(param.headerExtensions.length, 0); |
| assert_greater_than(param.codecs.length, 0); |
| }, 'getParameters() with audio receiver'); |
| |
| promise_test(async t => { |
| const pc = new RTCPeerConnection(); |
| t.add_cleanup(() => pc.close()); |
| pc.addTransceiver('video'); |
| const callee = await doOfferAnswerExchange(t, pc); |
| const param = callee.getTransceivers()[0].receiver.getParameters(); |
| validateReceiverRtpParameters(param); |
| |
| assert_greater_than(param.headerExtensions.length, 0); |
| assert_greater_than(param.codecs.length, 0); |
| }, 'getParameters() with video receiver'); |
| |
| promise_test(async t => { |
| const pc = new RTCPeerConnection(); |
| t.add_cleanup(() => pc.close()); |
| pc.addTransceiver('video', { |
| sendEncodings: [ |
| { rid: "rid1" }, |
| { rid: "rid2" } |
| ] |
| }); |
| const callee = await doOfferAnswerExchange(t, pc); |
| const param = callee.getTransceivers()[0].receiver.getParameters(); |
| validateReceiverRtpParameters(param); |
| assert_greater_than(param.headerExtensions.length, 0); |
| assert_greater_than(param.codecs.length, 0); |
| }, 'getParameters() with simulcast video receiver'); |
| |
| promise_test(async t => { |
| const stream = await getNoiseStream({video: true}); |
| t.add_cleanup(() => stream.getTracks().forEach(track => track.stop())); |
| const [track] = stream.getTracks(); |
| const caller = new RTCPeerConnection(); |
| t.add_cleanup(() => caller.close()); |
| caller.addTrack(track); |
| const callee = new RTCPeerConnection(); |
| t.add_cleanup(() => callee.close()); |
| callee.addTrack(track); |
| var callerReceiver = caller.getTransceivers()[0].receiver; |
| assert_equals(callerReceiver.getParameters().codecs.length, 0); |
| assert_equals(callerReceiver.getParameters().headerExtensions.length, 0, |
| "no caller header extensions before offer"); |
| const offer = await caller.createOffer(); |
| await caller.setLocalDescription(offer); |
| await callee.setRemoteDescription(offer); |
| var calleeReceiver = callee.getTransceivers()[0].receiver; |
| // Callee transceiver exists only after offer - population of parameters |
| // should only occur after answer. |
| assert_equals(calleeReceiver.getParameters().headerExtensions.length, 0, |
| "no callee header extensions before answer"); |
| assert_equals(calleeReceiver.getParameters().codecs.length, 0); |
| const answer = await callee.createAnswer(); |
| await callee.setLocalDescription(answer); |
| assert_greater_than(calleeReceiver.getParameters().codecs.length, 0, |
| "callee codecs after answer"); |
| await caller.setRemoteDescription(answer); |
| assert_greater_than(callerReceiver.getParameters().codecs.length, 0, |
| "caller codecs after answer"); |
| assert_greater_than(callerReceiver.getParameters().headerExtensions.length, 0, |
| "caller header extensions after O/A"); |
| assert_greater_than(calleeReceiver.getParameters().headerExtensions.length, 0, |
| "callee header extensions after O/A"); |
| }, 'getParameters() surfaces codecs on two-way receiver at the right time'); |
| |
| </script> |
