| <!doctype html> |
| <meta charset=utf-8> |
| <title>payload type handling (assuming rtcp-mux)</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="../third_party/sdp/sdp.js"></script> |
| <script> |
| 'use strict'; |
| // Tests behaviour from https://www.rfc-editor.org/rfc/rfc8834.html#name-header-extensions |
| |
| function createOfferSdp(extmaps) { |
| let sdp = `v=0 |
| o=- 0 3 IN IP4 127.0.0.1 |
| s=- |
| t=0 0 |
| a=fingerprint:sha-256 A7:24:72:CA:6E:02:55:39:BA:66:DF:6E:CC:4C:D8:B0:1A:BF:1A:56:65:7D:F4:03:AD:7E:77:43:2A:29:EC:93 |
| a=ice-ufrag:6HHHdzzeIhkE0CKj |
| a=ice-pwd:XYDGVpfvklQIEnZ6YnyLsAew |
| `; |
| sdp += 'a=group:BUNDLE ' + ['audio', 'video'].filter(kind => extmaps[kind]).join(' ') + '\r\n'; |
| if (extmaps.audio) { |
| sdp += `m=audio 9 RTP/SAVPF 111 |
| c=IN IP4 0.0.0.0 |
| a=rtcp-mux |
| a=sendonly |
| a=mid:audio |
| a=rtpmap:111 opus/48000/2 |
| a=setup:actpass |
| ` + extmaps.audio.map(ext => SDPUtils.writeExtmap(ext)).join(''); |
| } |
| if (extmaps.video) { |
| sdp += `m=video 9 RTP/SAVPF 112 |
| c=IN IP4 0.0.0.0 |
| a=rtcp-mux |
| a=sendonly |
| a=mid:video |
| a=rtpmap:112 VP8/90000 |
| a=setup:actpass |
| ` + extmaps.video.map(ext => SDPUtils.writeExtmap(ext)).join(''); |
| } |
| return sdp; |
| } |
| |
| [ |
| // https://www.rfc-editor.org/rfc/rfc8834.html#section-5.2.4 |
| { |
| audio: [{id: 1, uri: 'urn:ietf:params:rtp-hdrext:sdes:mid'}], |
| video: [{id: 1, uri: 'urn:ietf:params:rtp-hdrext:sdes:mid'}], |
| description: 'MID', |
| }, |
| { |
| // https://www.rfc-editor.org/rfc/rfc8834.html#section-5.2.2 |
| audio: [{id: 1, uri: 'urn:ietf:params:rtp-hdrext:ssrc-audio-level'}], |
| description: 'Audio level', |
| }, |
| { |
| // https://www.rfc-editor.org/rfc/rfc8834.html#section-5.2.5 |
| video: [{id: 1, uri: 'urn:3gpp:video-orientation'}], |
| description: 'Video orientation', |
| } |
| ].forEach(testcase => { |
| promise_test(async t => { |
| const pc = new RTCPeerConnection(); |
| t.add_cleanup(() => pc.close()); |
| |
| await pc.setRemoteDescription({type: 'offer', sdp: createOfferSdp(testcase)}); |
| const answer = await pc.createAnswer(); |
| const sections = SDPUtils.splitSections(answer.sdp); |
| sections.shift(); |
| sections.forEach(section => { |
| const rtpParameters = SDPUtils.parseRtpParameters(section); |
| assert_equals(rtpParameters.headerExtensions.length, 1); |
| assert_equals(rtpParameters.headerExtensions[0].id, testcase[SDPUtils.getKind(section)][0].id); |
| assert_equals(rtpParameters.headerExtensions[0].uri, testcase[SDPUtils.getKind(section)][0].uri); |
| }); |
| }, testcase.description + ' header extension is supported.'); |
| }); |
| |
| promise_test(async t => { |
| const pc = new RTCPeerConnection(); |
| t.add_cleanup(() => pc.close()); |
| |
| pc.addTransceiver('video'); |
| const offer = await pc.createOffer(); |
| const section = SDPUtils.splitSections(offer.sdp)[1]; |
| const extensions = SDPUtils.matchPrefix(section, 'a=extmap:') |
| .map(line => SDPUtils.parseExtmap(line)); |
| const extension_not_mid = extensions.find(e => e.uri !== 'urn:ietf:params:rtp-hdrext:sdes:mid'); |
| await pc.setRemoteDescription({type :'offer', sdp: offer.sdp.replace(extension_not_mid.uri, 'bogus')}); |
| |
| await pc.setLocalDescription(); |
| const answer_section = SDPUtils.splitSections(pc.localDescription.sdp)[1]; |
| const answer_extensions = SDPUtils.matchPrefix(answer_section, 'a=extmap:') |
| .map(line => SDPUtils.parseExtmap(line)); |
| assert_equals(answer_extensions.length, extensions.length - 1); |
| assert_false(!!extensions.find(e => e.uri === 'bogus')); |
| for (const answer_extension of answer_extensions) { |
| assert_true(!!extensions.find(e => e.uri === answer_extension.uri)); |
| } |
| }, 'Negotiates the subset of supported extensions offered'); |
| |
| promise_test(async t => { |
| const pc = new RTCPeerConnection(); |
| t.add_cleanup(() => pc.close()); |
| |
| // Some implementations may refuse 15 as invalid id because of |
| // https://www.rfc-editor.org/rfc/rfc8285#section-4.2 |
| // which only applies to one-byte extensions with ids 0-14. |
| const sdp = createOfferSdp({audio: [{ |
| id: 15, uri: 'urn:ietf:params:rtp-hdrext:sdes:mid', |
| }]}); |
| await pc.setRemoteDescription({type: 'offer', sdp}); |
| }, 'Supports header extensions with id=15'); |
| |
| promise_test(async t => { |
| const pc = new RTCPeerConnection(); |
| t.add_cleanup(() => pc.close()); |
| |
| const sdp = createOfferSdp({audio: [{ |
| id: 16, uri: 'urn:ietf:params:rtp-hdrext:sdes:mid', |
| }, { |
| id: 17, uri: 'urn:ietf:params:rtp-hdrext:ssrc-audio-level', |
| }]}); |
| await pc.setRemoteDescription({type: 'offer', sdp}); |
| await pc.setLocalDescription(); |
| const answer_section = SDPUtils.splitSections(pc.localDescription.sdp)[1]; |
| const answer_extensions = SDPUtils.matchPrefix(answer_section, 'a=extmap:') |
| .map(line => SDPUtils.parseExtmap(line)); |
| assert_equals(answer_extensions.length, 2); |
| assert_true(!!answer_extensions.find(e => e.uri === 'urn:ietf:params:rtp-hdrext:sdes:mid')); |
| assert_true(!!answer_extensions.find(e => e.uri === 'urn:ietf:params:rtp-hdrext:ssrc-audio-level')); |
| }, 'Supports two-byte header extensions'); |
| </script> |