| <!doctype html> |
| <meta charset=utf-8> |
| <title>RTCRtpParameters encodings</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/webrtc/dictionary-helper.js"></script> |
| <script src="/webrtc/RTCRtpParameters-helper.js"></script> |
| <script> |
| 'use strict'; |
| |
| // Test is based on the following editor draft: |
| // https://w3c.github.io/webrtc-svc/ |
| |
| // Get the first encoding in param.encodings. |
| // Asserts that param.encodings has at least one element. |
| function getFirstEncoding(param) { |
| const { encodings } = param; |
| assert_equals(encodings.length, 1); |
| return encodings[0]; |
| } |
| |
| promise_test(async t => { |
| const pc = new RTCPeerConnection(); |
| t.add_cleanup(() => pc.close()); |
| const { sender } = pc.addTransceiver('video', { |
| sendEncodings: [{scalabilityMode: 'L1T3'}], |
| }); |
| |
| const param = sender.getParameters(); |
| const encoding = getFirstEncoding(param); |
| |
| assert_equals(encoding.scalabilityMode, 'L1T3'); |
| |
| }, `Setting scalabilityMode to a legal value should be accepted`); |
| |
| promise_test(async t => { |
| const capabilities = RTCRtpSender.getCapabilities('video'); |
| var svcSupported = false; |
| for (const codec of capabilities.codecs) { |
| if ('scalabilityModes' in codec && codec.scalabilityModes.length > 0) { |
| svcSupported = true; |
| } |
| } |
| assert_true(svcSupported); |
| }, `Sender capabilities should include at least some scalability modes`); |
| |
| </script> |
