| <!doctype html> |
| <meta charset=utf-8> |
| <title>RTCPeerConnection Simulcast Offer</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| 'use strict'; |
| |
| // Tests for the construction of offers with simulcast according to: |
| // draft-ietf-mmusic-sdp-simulcast-13 |
| // draft-ietf-mmusic-rid-15 |
| promise_test(async t => { |
| const pc = new RTCPeerConnection(); |
| t.add_cleanup(() => pc.close()); |
| const expected_rids = ['foo', 'bar', 'baz']; |
| pc.addTransceiver('video', { |
| sendEncodings: expected_rids.map(rid => ({rid})) |
| }); |
| |
| const offer = await pc.createOffer(); |
| let offer_lines = offer.sdp.split('\r\n'); |
| // Check for a RID line for each layer. |
| for (const rid of expected_rids) { |
| let result = offer_lines.find(line => line.startsWith(`a=rid:${rid}`)); |
| assert_not_equals(result, undefined, `RID attribute for '${rid}' missing.`); |
| } |
| |
| // Check for simulcast attribute with send direction and all RIDs. |
| let result = offer_lines.find( |
| line => line.startsWith(`a=simulcast:send ${expected_rids.join(';')}`)); |
| assert_not_equals(result, undefined, "Could not find simulcast attribute."); |
| }, 'createOffer() with multiple send encodings should create simulcast offer'); |
| </script> |
