Best JavaScript code snippet using wpt
simulcast.js
Source:simulcast.js
1'use strict';2/* Helper functions to munge SDP and split the sending track into3 * separate tracks on the receiving end. This can be done in a number4 * of ways, the one used here uses the fact that the MID and RID header5 * extensions which are used for packet routing share the same wire6 * format. The receiver interprets the rids from the sender as mids7 * which allows receiving the different spatial resolutions on separate8 * m-lines and tracks.9 */10const extensionsToFilter = [11 'urn:ietf:params:rtp-hdrext:sdes:mid',12 'urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id',13 'urn:ietf:params:rtp-hdrext:sdes:repaired-rtp-stream-id',14];15function swapRidAndMidExtensionsInSimulcastOffer(offer, rids) {16 const sections = SDPUtils.splitSections(offer.sdp);17 const dtls = SDPUtils.getDtlsParameters(sections[1], sections[0]);18 const ice = SDPUtils.getIceParameters(sections[1], sections[0]);19 const rtpParameters = SDPUtils.parseRtpParameters(sections[1]);20 // The gist of this hack is that rid and mid have the same wire format.21 const rid = rtpParameters.headerExtensions.find(ext => ext.uri === 'urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id');22 rtpParameters.headerExtensions = rtpParameters.headerExtensions.filter(ext => {23 return !extensionsToFilter.includes(ext.uri);24 });25 // This tells the other side that the RID packets are actually mids.26 rtpParameters.headerExtensions.push({id: rid.id, uri: 'urn:ietf:params:rtp-hdrext:sdes:mid', direction: 'sendrecv'});27 // Filter rtx as we have no way to (re)interpret rrid.28 // Not doing this makes probing use RTX, it's not understood and ramp-up is slower.29 rtpParameters.codecs = rtpParameters.codecs.filter(c => c.name.toUpperCase() !== 'RTX');30 let sdp = SDPUtils.writeSessionBoilerplate() +31 SDPUtils.writeDtlsParameters(dtls, 'actpass') +32 SDPUtils.writeIceParameters(ice) +33 'a=group:BUNDLE ' + rids.join(' ') + '\r\n';34 const baseRtpDescription = SDPUtils.writeRtpDescription('video', rtpParameters);35 rids.forEach(rid => {36 sdp += baseRtpDescription +37 'a=mid:' + rid + '\r\n' +38 'a=msid:rid-' + rid + ' rid-' + rid + '\r\n';39 });40 return sdp;41}42function swapRidAndMidExtensionsInSimulcastAnswer(answer, localDescription, rids) {43 const sections = SDPUtils.splitSections(answer.sdp);44 const dtls = SDPUtils.getDtlsParameters(sections[1], sections[0]);45 const ice = SDPUtils.getIceParameters(sections[1], sections[0]);46 const rtpParameters = SDPUtils.parseRtpParameters(sections[1]);47 rtpParameters.headerExtensions = rtpParameters.headerExtensions.filter(ext => {48 return !extensionsToFilter.includes(ext.uri);49 });50 const localMid = SDPUtils.getMid(SDPUtils.splitSections(localDescription.sdp)[1]);51 let sdp = SDPUtils.writeSessionBoilerplate() +52 SDPUtils.writeDtlsParameters(dtls, 'active') +53 SDPUtils.writeIceParameters(ice) +54 'a=group:BUNDLE ' + localMid + '\r\n';55 sdp += SDPUtils.writeRtpDescription('video', rtpParameters);56 sdp += 'a=mid:' + localMid + '\r\n';57 rids.forEach(rid => {58 sdp += 'a=rid:' + rid + ' recv\r\n';59 });60 sdp += 'a=simulcast:recv ' + rids.join(';') + '\r\n';61 // Re-add headerextensions we filtered.62 const headerExtensions = SDPUtils.parseRtpParameters(SDPUtils.splitSections(localDescription.sdp)[1]).headerExtensions;63 headerExtensions.forEach(ext => {64 if (extensionsToFilter.includes(ext.uri)) {65 sdp += 'a=extmap:' + ext.id + ' ' + ext.uri + '\r\n';66 }67 });68 return sdp;...
Using AI Code Generation
1var wpt = require('webpagetest');2var test = new wpt('Your API Key');3test.baseRtpDescription('www.webpagetest.org', function(err, data) {4 if (err) {5 console.log(err);6 } else {7 console.log(data);8 }9});10{ baseRtpDescription:11 { '0':12 { '0': { '0': [Object], '1': [Object], '2': [Object], '3': [Object] },13 '1': { '0': [Object], '1': [Object], '2': [Object], '3': [Object] },14 '2': { '0': [Object], '1': [Object], '2': [Object], '3': [Object] },15 '3': { '0': [Object], '1': [Object], '2': [Object], '3': [Object] } },16 { '0': { '0': [Object], '1': [Object], '2': [Object], '3': [Object] },17 '1': { '0': [Object], '1': [Object], '2': [Object], '3': [Object] },18 '2': { '0': [Object], '1': [Object], '2': [Object], '3': [Object] },19 '3': { '0': [Object], '1': [Object], '2': [Object], '3': [Object] } },20 { '0': { '0': [Object], '1': [Object], '2': [Object], '3': [Object] },21 '1': { '0': [Object], '1': [Object], '2': [Object], '3': [Object] },22 '2': { '0': [Object], '1': [Object], '2': [Object], '3': [Object] },23 '3': { '0': [Object], '1': [Object], '2': [Object], '3': [Object] } },24 { '0': { '0': [Object], '1': [Object], '2': [Object], '3': [
Using AI Code Generation
1var wpt = require('webpagetest');2var test = new wpt('yourapikey');3}, function (err, data) {4 if (err) {5 console.log('Error: ' + err);6 } else {7 console.log('Test started: ' + data.data.testId);8 test.getTestResults(data.data.testId, function (err, data) {9 if (err) {10 console.log('Error: ' + err);11 } else {12 console.log('Test completed: ' + data.data.median.firstView.SpeedIndex);13 }14 });15 }16});17var wpt = require('webpagetest');18var test = new wpt('yourapikey');19}, function (err, data) {20 if (err) {21 console.log('Error: ' + err);22 } else {23 console.log('Test started: ' + data.data.testId);24 test.getTestResults(data.data.testId, function (err, data) {25 if (err) {26 console.log('Error: ' + err);27 } else {28 console.log('Test completed: ' + data.data.median.firstView.SpeedIndex);29 }30 });31 }32});33var wpt = require('webpagetest');34var test = new wpt('yourapikey');35}, function (err, data) {36 if (err) {37 console.log('Error: ' + err);38 } else {39 console.log('Test started: ' + data.data.testId);40 test.getTestResults(data.data.testId, function
Using AI Code Generation
1var test = async_test("Test to check if the baseRtpDescription method of wpt is working");2test.step(function()3{4 var wpt = new WebRTCPeerConnection();5 var sessionDescription = new RTCSessionDescription();6 var mediaStream = new MediaStream();7 var mediaStreamTrack = new MediaStreamTrack();8 wpt.addStream(mediaStream);9 wpt.addTrack(mediaStreamTrack);10 wpt.createOffer(sessionDescription);11 wpt.createAnswer(sessionDescription);12 wpt.setLocalDescription(sessionDescription);13 wpt.setRemoteDescription(sessionDescription);14 var baseRtpDescription = wpt.baseRtpDescription(sessionDescription);15 assert_true(baseRtpDescription instanceof RTCRtpDescription);16 test.done();17});18var test = async_test("Test to check if the baseRtpDescription method of wpt is working");19test.step(function()20{21 var wpt = new WebRTCPeerConnection();22 var sessionDescription = new RTCSessionDescription();23 var mediaStream = new MediaStream();24 var mediaStreamTrack = new MediaStreamTrack();25 wpt.addStream(mediaStream);26 wpt.addTrack(mediaStreamTrack);27 wpt.createOffer(sessionDescription);28 wpt.createAnswer(sessionDescription);29 wpt.setLocalDescription(sessionDescription);30 wpt.setRemoteDescription(sessionDescription);31 var baseRtpDescription = wpt.baseRtpDescription(sessionDescription);32 assert_true(baseRtpDescription instanceof RTCRtpDescription);33 test.done();34});35var test = async_test("Test to check if the baseRtpDescription method of wpt is working");36test.step(function()37{38 var wpt = new WebRTCPeerConnection();39 var sessionDescription = new RTCSessionDescription();40 var mediaStream = new MediaStream();41 var mediaStreamTrack = new MediaStreamTrack();42 wpt.addStream(mediaStream);43 wpt.addTrack(mediaStreamTrack);44 wpt.createOffer(sessionDescription);45 wpt.createAnswer(sessionDescription);46 wpt.setLocalDescription(sessionDescription);47 wpt.setRemoteDescription(sessionDescription);48 var baseRtpDescription = wpt.baseRtpDescription(sessionDescription);49 assert_true(baseRtpDescription instanceof RTCRtpDescription);
Using AI Code Generation
1var wptoolkit = require('wptoolkit');2var testname = "rtcp-mux";3wptoolkit.baseRtpDescription(testname, function(err, baseRtpDescription) {4 if (err) {5 console.log(err);6 }7 else {8 console.log(baseRtpDescription);9 }10});11{12 "audio": {13 "audio": {14 {15 }16 {17 }18 }19 },20 "video": {21 "video": {22 {23 }24 {25 },26 {27 }28 }29 }30}31baseRtpDescription(testname, callback)
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