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How to use rtpParameters method in wpt

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;69}70async function negotiateSimulcastAndWaitForVideo(t, rids, pc1, pc2, codec) {71  exchangeIceCandidates(pc1, pc2);72  const metadataToBeLoaded = [];73  pc2.ontrack = (e) => {74    const stream = e.streams[0];75    const v = document.createElement('video');76    v.autoplay = true;77    v.srcObject = stream;78    v.id = stream.id79    metadataToBeLoaded.push(new Promise((resolve) => {80        v.addEventListener('loadedmetadata', () => {81            resolve();82        });83    }));84  };85  // Use getUserMedia as getNoiseStream does not have enough entropy to ramp-up.86  await setMediaPermission();87  const stream = await navigator.mediaDevices.getUserMedia({video: {width: 1280, height: 720}});88  t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));89  const transceiver = pc1.addTransceiver(stream.getVideoTracks()[0], {90    streams: [stream],91    sendEncodings: rids.map(rid => ({rid})),92  });93  if (codec) {94    preferCodec(transceiver, codec.mimeType, codec.sdpFmtpLine);95  }96  const offer = await pc1.createOffer();97  await pc1.setLocalDescription(offer),98  await pc2.setRemoteDescription({99    type: 'offer',100    sdp: swapRidAndMidExtensionsInSimulcastOffer(offer, rids),101  });102  const answer = await pc2.createAnswer();103  await pc2.setLocalDescription(answer);104  await pc1.setRemoteDescription({105    type: 'answer',106    sdp: swapRidAndMidExtensionsInSimulcastAnswer(answer, pc1.localDescription, rids),107  });108  assert_equals(metadataToBeLoaded.length, rids.length);109  return Promise.all(metadataToBeLoaded);...

sdp.ts

Source:sdp.ts

1import { Consumer } from 'mediasoup/lib/Consumer';2import { PlainTransport } from 'mediasoup/lib/PlainTransport';3import { Producer } from 'mediasoup/lib/Producer';4import { MediaKind, RtpParameters } from 'mediasoup/lib/RtpParameters';5import config from './config';6const parseParams = (obj: any) => {7  if (!obj) return;8  const keys = Object.keys(obj);9  if (!keys.length) return;10  const params = [];11  // level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f12  keys.forEach((key) => {13    params.push(`${key}=${obj[key]}`);14  });15  return params.join(';');16};17export const getCodecInfoFromRtpParameters = (18  kind: MediaKind,19  rtpParameters: RtpParameters20) => {21  const codec = rtpParameters.codecs[0];22  const encoding = rtpParameters.encodings[0];23  return {24    payloadType: codec.payloadType,25    codecName: codec.mimeType.replace(`${kind}/`, '').toLowerCase(),26    clockRate: codec.clockRate,27    parameters: parseParams(codec.parameters),28    channels: kind === 'audio' ? codec.channels : undefined,29    ssrc: encoding.ssrc30  };31};32export const getSdpText = (33  transport: PlainTransport,34  producer: Producer,35  consumer: Consumer36) => {37  let sdpText = '';38  const streamIp = config.mediasoup.plainTransportOptions.listenIp.ip;39  sdpText += 'v=0\n';40  sdpText += `o=- 0 0 IN IP4 ${streamIp}\n`;41  sdpText += 's=FFmpeg\n';42  sdpText += `c=IN IP4 ${streamIp}\n`;43  sdpText += 't=0 0\n';44  const remoteRtpPort = transport.tuple.remotePort;45  const remoteRtcpPort = transport.rtcpTuple.remotePort;46  const rtpParameters = consumer.rtpParameters;47  const codec = getCodecInfoFromRtpParameters(producer.kind, rtpParameters);48  if (producer.kind === 'video') {49    sdpText += `m=video ${remoteRtpPort} RTP/AVPF ${codec.payloadType}\n`;50    sdpText += `a=ssrc:${codec.ssrc}\n`;51    sdpText += `a=rtcp:${remoteRtcpPort}\n`;52    sdpText += `a=rtpmap:${codec.payloadType} ${codec.codecName}/${codec.clockRate}\n`;53    if (codec.parameters) {54      sdpText += `a=fmtp:${codec.payloadType} ${codec.parameters}\n`;55    }56  }57  if (producer.kind === 'audio') {58    sdpText += `m=audio ${remoteRtpPort} RTP/AVPF ${codec.payloadType}\n`;59    sdpText += `a=ssrc:${codec.ssrc}\n`;60    sdpText += `a=rtcp:${remoteRtcpPort}\n`;61    sdpText += `a=rtpmap:${codec.payloadType} ${codec.codecName}/${codec.clockRate}/${codec.channels}\n`;62    if (codec.parameters) {63      sdpText += `a=fmtp:${codec.payloadType} ${codec.parameters}\n`;64    }65  }66  return sdpText;...

Using AI Code Generation

1var wpt = require('../lib/webpagetest.js');2var wpt = new wpt('www.webpagetest.org');3wpt.getLocations(function (err, data) {4  if (err) return console.error(err);5  console.log(data);6});7wpt.getTesters(function (err, data) {8  if (err) return console.error(err);9  console.log(data);10});11wpt.runTest('www.google.com', {location: 'Dulles:Chrome'}, function (err, data) {12  if (err) return console.error(err);13  console.log(data);14});15wpt.getTestStatus('140714_9S_1f8', function (err, data) {16  if (err) return console.error(err);17  console.log(data);18});19wpt.getTestResults('140714_9S_1f8', function (err, data) {20  if (err) return console.error(err);21  console.log(data);22});23wpt.getTestResults('140714_9S_1f8', {breakdown: true}, function (err, data) {24  if (err) return console.error(err);25  console.log(data);26});27wpt.getTestResults('140714_9S_1f8', {requests: true}, function (err, data) {28  if (err) return console.error(err);29  console.log(data);30});31wpt.getTestResults('140714_9S_1f8', {pagespeed: true}, function (err, data) {32  if (err) return console.error(err);33  console.log(data);34});35wpt.getTestResults('140714_9S_1f8', {pagespeed: true, requests: true}, function (err, data) {36  if (err) return console.error(err);37  console.log(data);38});39wpt.getTestResults('140714_9S_1f8', {pagespeed: true, requests: true, breakdown: true}, function (err, data) {40  if (err) return console.error(err);41  console.log(data);42});43wpt.getTestResults('140714_9S_1f8', {pagespeed: true, requests: true, breakdown: true, medianMetric: 'loadTime'}, function (err, data) {44  if (err) return

Using AI Code Generation

1var wptool = require('./wptool.js');2var fs = require('fs');3var path = require('path');4var test = function (url) {5    var options = {6        output: path.join(__dirname, 'output'),

Using AI Code Generation

1const wptool = require('wptool');2var rtpParameters = wptool.rtpParameters();3console.log(rtpParameters);4{ audio: 5   { codecs: 6      [ { name: 'opus',7          parameters: [Object] },8        { name: 'ISAC',9          parameters: [Object] },10        { name: 'ISAC',11          parameters: [Object] },12        { name: 'G722',13          parameters: [Object] },14        { name: 'PCMU',15          parameters: [Object] },16        { name: 'PCMA',17          parameters: [Object] },18        { name: 'CN',19          parameters: [Object] },20        { name: 'CN',21          parameters: [Object] },22        { name: 'CN',23          parameters: [Object] },24        { name: 'telephone-event',25          parameters: [Object] },26        { name: 'telephone-event',27          parameters: [Object] },28        { name: 'telephone-event',29          parameters: [Object] } ],30      [ { uri: 'urn:ietf:params:rtp-hdrext:ssrc-audio-level',31          parameters: [Object] },32          parameters: [Object] },33        { uri: 'urn:ietf:params:rtp-hdrext:toffset',

Using AI Code Generation

1const wptool = require('wptool');2const path = require('path');3const wp = new wptool({4    path: path.resolve(__dirname, '../wordpress')5});6wp.rtpParameters().then((data) => {7    console.log(data);8}).catch((err) => {9    console.log(err);10});

Using AI Code Generation

1var wptools = require('./index.js');2wptools.page(url).then(function(page) {3  return page.rtpParameters();4}).then(function(rtpParameters) {5  console.log(rtpParameters);6}).catch(function(err) {7  console.log(err);8});

Using AI Code Generation

1const wptool = require('wptool');2const rtpParameters = wptool.rtpParameters;3console.log(rtp);4### wptool.searchVideo(query, maxResults, callback)5const wptool = require('wptool');6const query = "youtube";7const maxResults = 5;8wptool.searchVideo(query, maxResults, function(videos) {9    console.log(videos);10});11### wptool.rtpParameters(url, callback)12const wptool = require('wptool');13wptool.rtpParameters(url, function(rtp) {14    console.log(rtp);15});16### wptool.download(url, callback)17const wptool = require('wptool');

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