sdp - npm Package Compare versions

Comparing version 2.12.0 to 3.0.0

.nyc_output/processinfo/index.json

@@ -1,1 +0,1 @@
-{"processes":{"987304f6-c747-496b-a588-c3a3acec9b3c":{"parent":null,"children":["d2946562-4d8d-4611-a0c2-7de213f7152d"]},"d2946562-4d8d-4611-a0c2-7de213f7152d":{"parent":"987304f6-c747-496b-a588-c3a3acec9b3c","children":[]}},"files":{"/media/fippo/houseparty/webrtc/sdp/sdp.js":["d2946562-4d8d-4611-a0c2-7de213f7152d"]},"externalIds":{}}
+{"processes":{"5fcbc816-295e-41b8-9166-5e0a51aade26":{"parent":null,"children":[]}},"files":{"/media/fippo/houseparty/webrtc/sdp/sdp.js":["5fcbc816-295e-41b8-9166-5e0a51aade26"]},"externalIds":{}}

package.json

 {
   "name": "sdp",
-  "version": "2.12.0",
+  "version": "3.0.0",
   "description": "SDP parsing and serialization utilities",
-  "main": "sdp.js",
+  "main": "dist/sdp.js",
+  "module": "sdp.js",
   "repository": {
@@ -11,3 +12,5 @@ "type": "git",
   "scripts": {
+    "build": "babel sdp.js --presets babel-preset-env --out-dir dist",
     "coverage": "nyc report --reporter=text-lcov > coverage.lcov && codecov",
+    "prepare": "npm run build",
     "test": "eslint sdp.js test/sdp.js && nyc --reporter html mocha test/sdp.js"
@@ -22,6 +25,9 @@ },
   "devDependencies": {
+    "babel-cli": "^6.26.0",
+    "babel-core": "^6.26.3",
+    "babel-preset-env": "^1.7.0",
     "chai": "^4.0.0",
-    "codecov": "^3.0.4",
+    "codecov": "^3.6.5",
     "eslint": "^6.0.1",
-    "mocha": "^5.2.0",
+    "mocha": "^7.1.2",
     "nyc": "^14.1.1",
@@ -28,0 +34,0 @@ "sinon": "^2.3.2",

sdp.js

@@ -5,3 +5,3 @@ /* eslint-env node */
 // SDP helpers.
-var SDPUtils = {};
+const SDPUtils = {};
 
@@ -19,12 +19,9 @@ // Generate an alphanumeric identifier for cname or mids.
 SDPUtils.splitLines = function(blob) {
-  return blob.trim().split('\n').map(function(line) {
-    return line.trim();
-  });
+  return blob.trim().split('\n').map(line => line.trim());
 };
 // Splits SDP into sessionpart and mediasections. Ensures CRLF.
 SDPUtils.splitSections = function(blob) {
-  var parts = blob.split('\nm=');
-  return parts.map(function(part, index) {
-    return (index > 0 ? 'm=' + part : part).trim() + '\r\n';
-  });
+  const parts = blob.split('\nm=');
+  return parts.map((part, index) => (index > 0 ?
+    'm=' + part : part).trim() + '\r\n');
 };
@@ -34,3 +31,3 @@
 SDPUtils.getDescription = function(blob) {
-  var sections = SDPUtils.splitSections(blob);
+  const sections = SDPUtils.splitSections(blob);
   return sections && sections[0];
@@ -41,3 +38,3 @@ };
 SDPUtils.getMediaSections = function(blob) {
-  var sections = SDPUtils.splitSections(blob);
+  const sections = SDPUtils.splitSections(blob);
   sections.shift();
@@ -49,5 +46,3 @@ return sections;
 SDPUtils.matchPrefix = function(blob, prefix) {
-  return SDPUtils.splitLines(blob).filter(function(line) {
-    return line.indexOf(prefix) === 0;
-  });
+  return SDPUtils.splitLines(blob).filter(line => line.indexOf(prefix) === 0);
 };
@@ -59,3 +54,3 @@
 SDPUtils.parseCandidate = function(line) {
-  var parts;
+  let parts;
   // Parse both variants.
@@ -68,5 +63,5 @@ if (line.indexOf('a=candidate:') === 0) {
 
-  var candidate = {
+  const candidate = {
     foundation: parts[0],
-    component: parseInt(parts[1], 10),
+    component: {1: 'rtp', 2: 'rtcp'}[parts[1]],
     protocol: parts[2].toLowerCase(),
@@ -78,6 +73,6 @@ priority: parseInt(parts[3], 10),
     // skip parts[6] == 'typ'
-    type: parts[7]
+    type: parts[7],
   };
 
-  for (var i = 8; i < parts.length; i += 2) {
+  for (let i = 8; i < parts.length; i += 2) {
     switch (parts[i]) {
@@ -94,3 +89,3 @@ case 'raddr':
       case 'ufrag':
-        candidate.ufrag = parts[i + 1]; // for backward compability.
+        candidate.ufrag = parts[i + 1]; // for backward compatibility.
         candidate.usernameFragment = parts[i + 1];
@@ -108,5 +103,13 @@ break;
 SDPUtils.writeCandidate = function(candidate) {
-  var sdp = [];
+  const sdp = [];
   sdp.push(candidate.foundation);
-  sdp.push(candidate.component);
+
+  const component = candidate.component;
+  if (component === 'rtp') {
+    sdp.push(1);
+  } else if (component === 'rtcp') {
+    sdp.push(2);
+  } else {
+    sdp.push(component);
+  }
   sdp.push(candidate.protocol.toUpperCase());
@@ -117,3 +120,3 @@ sdp.push(candidate.priority);
 
-  var type = candidate.type;
+  const type = candidate.type;
   sdp.push('typ');
@@ -148,5 +151,5 @@ sdp.push(type);
 SDPUtils.parseRtpMap = function(line) {
-  var parts = line.substr(9).split(' ');
-  var parsed = {
-    payloadType: parseInt(parts.shift(), 10) // was: id
+  let parts = line.substr(9).split(' ');
+  const parsed = {
+    payloadType: parseInt(parts.shift(), 10), // was: id
   };
@@ -167,7 +170,7 @@
 SDPUtils.writeRtpMap = function(codec) {
-  var pt = codec.payloadType;
+  let pt = codec.payloadType;
   if (codec.preferredPayloadType !== undefined) {
     pt = codec.preferredPayloadType;
   }
-  var channels = codec.channels || codec.numChannels || 1;
+  const channels = codec.channels || codec.numChannels || 1;
   return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate +
@@ -181,7 +184,7 @@ (channels !== 1 ? '/' + channels : '') + '\r\n';
 SDPUtils.parseExtmap = function(line) {
-  var parts = line.substr(9).split(' ');
+  const parts = line.substr(9).split(' ');
   return {
     id: parseInt(parts[0], 10),
     direction: parts[0].indexOf('/') > 0 ? parts[0].split('/')[1] : 'sendrecv',
-    uri: parts[1]
+    uri: parts[1],
   };
@@ -204,6 +207,6 @@ };
 SDPUtils.parseFmtp = function(line) {
-  var parsed = {};
-  var kv;
-  var parts = line.substr(line.indexOf(' ') + 1).split(';');
-  for (var j = 0; j < parts.length; j++) {
+  const parsed = {};
+  let kv;
+  const parts = line.substr(line.indexOf(' ') + 1).split(';');
+  for (let j = 0; j < parts.length; j++) {
     kv = parts[j].trim().split('=');
@@ -217,4 +220,4 @@ parsed[kv[0].trim()] = kv[1];
 SDPUtils.writeFmtp = function(codec) {
-  var line = '';
-  var pt = codec.payloadType;
+  let line = '';
+  let pt = codec.payloadType;
   if (codec.preferredPayloadType !== undefined) {
@@ -224,4 +227,4 @@ pt = codec.preferredPayloadType;
   if (codec.parameters && Object.keys(codec.parameters).length) {
-    var params = [];
-    Object.keys(codec.parameters).forEach(function(param) {
+    const params = [];
+    Object.keys(codec.parameters).forEach(param => {
       if (codec.parameters[param]) {
@@ -241,6 +244,6 @@ params.push(param + '=' + codec.parameters[param]);
 SDPUtils.parseRtcpFb = function(line) {
-  var parts = line.substr(line.indexOf(' ') + 1).split(' ');
+  const parts = line.substr(line.indexOf(' ') + 1).split(' ');
   return {
     type: parts.shift(),
-    parameter: parts.join(' ')
+    parameter: parts.join(' '),
   };
@@ -250,4 +253,4 @@ };
 SDPUtils.writeRtcpFb = function(codec) {
-  var lines = '';
-  var pt = codec.payloadType;
+  let lines = '';
+  let pt = codec.payloadType;
   if (codec.preferredPayloadType !== undefined) {
@@ -258,3 +261,3 @@ pt = codec.preferredPayloadType;
     // FIXME: special handling for trr-int?
-    codec.rtcpFeedback.forEach(function(fb) {
+    codec.rtcpFeedback.forEach(fb => {
       lines += 'a=rtcp-fb:' + pt + ' ' + fb.type +
@@ -271,7 +274,7 @@ (fb.parameter && fb.parameter.length ? ' ' + fb.parameter : '') +
 SDPUtils.parseSsrcMedia = function(line) {
-  var sp = line.indexOf(' ');
-  var parts = {
-    ssrc: parseInt(line.substr(7, sp - 7), 10)
+  const sp = line.indexOf(' ');
+  const parts = {
+    ssrc: parseInt(line.substr(7, sp - 7), 10),
   };
-  var colon = line.indexOf(':', sp);
+  const colon = line.indexOf(':', sp);
   if (colon > -1) {
@@ -287,8 +290,6 @@ parts.attribute = line.substr(sp + 1, colon - sp - 1);
 SDPUtils.parseSsrcGroup = function(line) {
-  var parts = line.substr(13).split(' ');
+  const parts = line.substr(13).split(' ');
   return {
     semantics: parts.shift(),
-    ssrcs: parts.map(function(ssrc) {
-      return parseInt(ssrc, 10);
-    })
+    ssrcs: parts.map(ssrc => parseInt(ssrc, 10)),
   };
@@ -300,3 +301,3 @@ };
 SDPUtils.getMid = function(mediaSection) {
-  var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:')[0];
+  const mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:')[0];
   if (mid) {
@@ -308,6 +309,6 @@ return mid.substr(6);
 SDPUtils.parseFingerprint = function(line) {
-  var parts = line.substr(14).split(' ');
+  const parts = line.substr(14).split(' ');
   return {
     algorithm: parts[0].toLowerCase(), // algorithm is case-sensitive in Edge.
-    value: parts[1]
+    value: parts[1],
   };
@@ -320,3 +321,3 @@ };
 SDPUtils.getDtlsParameters = function(mediaSection, sessionpart) {
-  var lines = SDPUtils.matchPrefix(mediaSection + sessionpart,
+  const lines = SDPUtils.matchPrefix(mediaSection + sessionpart,
     'a=fingerprint:');
@@ -327,3 +328,3 @@ // Note: a=setup line is ignored since we use the 'auto' role.
     role: 'auto',
-    fingerprints: lines.map(SDPUtils.parseFingerprint)
+    fingerprints: lines.map(SDPUtils.parseFingerprint),
   };
@@ -334,4 +335,4 @@ };
 SDPUtils.writeDtlsParameters = function(params, setupType) {
-  var sdp = 'a=setup:' + setupType + '\r\n';
-  params.fingerprints.forEach(function(fp) {
+  let sdp = 'a=setup:' + setupType + '\r\n';
+  params.fingerprints.forEach(fp => {
     sdp += 'a=fingerprint:' + fp.algorithm + ' ' + fp.value + '\r\n';
@@ -345,3 +346,3 @@ });
 SDPUtils.parseCryptoLine = function(line) {
-  var parts = line.substr(9).split(' ');
+  const parts = line.substr(9).split(' ');
   return {
@@ -371,3 +372,3 @@ tag: parseInt(parts[0], 10),
   }
-  var parts = keyParams.substr(7).split('|');
+  const parts = keyParams.substr(7).split('|');
   return {
@@ -391,5 +392,5 @@ keyMethod: 'inline',
 
-// Extracts all SDES paramters.
+// Extracts all SDES parameters.
 SDPUtils.getCryptoParameters = function(mediaSection, sessionpart) {
-  var lines = SDPUtils.matchPrefix(mediaSection + sessionpart,
+  const lines = SDPUtils.matchPrefix(mediaSection + sessionpart,
     'a=crypto:');
@@ -403,5 +404,5 @@ return lines.map(SDPUtils.parseCryptoLine);
 SDPUtils.getIceParameters = function(mediaSection, sessionpart) {
-  var ufrag = SDPUtils.matchPrefix(mediaSection + sessionpart,
+  const ufrag = SDPUtils.matchPrefix(mediaSection + sessionpart,
     'a=ice-ufrag:')[0];
-  var pwd = SDPUtils.matchPrefix(mediaSection + sessionpart,
+  const pwd = SDPUtils.matchPrefix(mediaSection + sessionpart,
     'a=ice-pwd:')[0];
@@ -419,4 +420,8 @@ if (!(ufrag && pwd)) {
 SDPUtils.writeIceParameters = function(params) {
-  return 'a=ice-ufrag:' + params.usernameFragment + '\r\n' +
+  let sdp = 'a=ice-ufrag:' + params.usernameFragment + '\r\n' +
       'a=ice-pwd:' + params.password + '\r\n';
+  if (params.iceLite) {
+    sdp += 'a=ice-lite\r\n';
+  }
+  return sdp;
 };
@@ -426,17 +431,17 @@
 SDPUtils.parseRtpParameters = function(mediaSection) {
-  var description = {
+  const description = {
     codecs: [],
     headerExtensions: [],
     fecMechanisms: [],
-    rtcp: []
+    rtcp: [],
   };
-  var lines = SDPUtils.splitLines(mediaSection);
-  var mline = lines[0].split(' ');
-  for (var i = 3; i < mline.length; i++) { // find all codecs from mline[3..]
-    var pt = mline[i];
-    var rtpmapline = SDPUtils.matchPrefix(
+  const lines = SDPUtils.splitLines(mediaSection);
+  const mline = lines[0].split(' ');
+  for (let i = 3; i < mline.length; i++) { // find all codecs from mline[3..]
+    const pt = mline[i];
+    const rtpmapline = SDPUtils.matchPrefix(
       mediaSection, 'a=rtpmap:' + pt + ' ')[0];
     if (rtpmapline) {
-      var codec = SDPUtils.parseRtpMap(rtpmapline);
-      var fmtps = SDPUtils.matchPrefix(
+      const codec = SDPUtils.parseRtpMap(rtpmapline);
+      const fmtps = SDPUtils.matchPrefix(
         mediaSection, 'a=fmtp:' + pt + ' ');
@@ -460,3 +465,3 @@ // Only the first a=fmtp:<pt> is considered.
   }
-  SDPUtils.matchPrefix(mediaSection, 'a=extmap:').forEach(function(line) {
+  SDPUtils.matchPrefix(mediaSection, 'a=extmap:').forEach(line => {
     description.headerExtensions.push(SDPUtils.parseExtmap(line));
@@ -471,3 +476,3 @@ });
 SDPUtils.writeRtpDescription = function(kind, caps) {
-  var sdp = '';
+  let sdp = '';
 
@@ -478,3 +483,3 @@ // Build the mline.
   sdp += ' UDP/TLS/RTP/SAVPF ';
-  sdp += caps.codecs.map(function(codec) {
+  sdp += caps.codecs.map(codec => {
     if (codec.preferredPayloadType !== undefined) {
@@ -490,3 +495,3 @@ return codec.preferredPayloadType;
   // Add a=rtpmap lines for each codec. Also fmtp and rtcp-fb.
-  caps.codecs.forEach(function(codec) {
+  caps.codecs.forEach(codec => {
     sdp += SDPUtils.writeRtpMap(codec);
@@ -496,4 +501,4 @@ sdp += SDPUtils.writeFmtp(codec);
   });
-  var maxptime = 0;
-  caps.codecs.forEach(function(codec) {
+  let maxptime = 0;
+  caps.codecs.forEach(codec => {
     if (codec.maxptime > maxptime) {
@@ -506,6 +511,5 @@ maxptime = codec.maxptime;
   }
-  sdp += 'a=rtcp-mux\r\n';
 
   if (caps.headerExtensions) {
-    caps.headerExtensions.forEach(function(extension) {
+    caps.headerExtensions.forEach(extension => {
       sdp += SDPUtils.writeExtmap(extension);
@@ -521,24 +525,18 @@ });
 SDPUtils.parseRtpEncodingParameters = function(mediaSection) {
-  var encodingParameters = [];
-  var description = SDPUtils.parseRtpParameters(mediaSection);
-  var hasRed = description.fecMechanisms.indexOf('RED') !== -1;
-  var hasUlpfec = description.fecMechanisms.indexOf('ULPFEC') !== -1;
+  const encodingParameters = [];
+  const description = SDPUtils.parseRtpParameters(mediaSection);
+  const hasRed = description.fecMechanisms.indexOf('RED') !== -1;
+  const hasUlpfec = description.fecMechanisms.indexOf('ULPFEC') !== -1;
 
   // filter a=ssrc:... cname:, ignore PlanB-msid
-  var ssrcs = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
-    .map(function(line) {
-      return SDPUtils.parseSsrcMedia(line);
-    })
-    .filter(function(parts) {
-      return parts.attribute === 'cname';
-    });
-  var primarySsrc = ssrcs.length > 0 && ssrcs[0].ssrc;
-  var secondarySsrc;
+  const ssrcs = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
+    .map(line => SDPUtils.parseSsrcMedia(line))
+    .filter(parts => parts.attribute === 'cname');
+  const primarySsrc = ssrcs.length > 0 && ssrcs[0].ssrc;
+  let secondarySsrc;
 
-  var flows = SDPUtils.matchPrefix(mediaSection, 'a=ssrc-group:FID')
-    .map(function(line) {
-      var parts = line.substr(17).split(' ');
-      return parts.map(function(part) {
-        return parseInt(part, 10);
-      });
+  const flows = SDPUtils.matchPrefix(mediaSection, 'a=ssrc-group:FID')
+    .map(line => {
+      const parts = line.substr(17).split(' ');
+      return parts.map(part => parseInt(part, 10));
     });
@@ -549,7 +547,7 @@ if (flows.length > 0 && flows[0].length > 1 && flows[0][0] === primarySsrc) {
 
-  description.codecs.forEach(function(codec) {
+  description.codecs.forEach(codec => {
     if (codec.name.toUpperCase() === 'RTX' && codec.parameters.apt) {
-      var encParam = {
+      let encParam = {
         ssrc: primarySsrc,
-        codecPayloadType: parseInt(codec.parameters.apt, 10)
+        codecPayloadType: parseInt(codec.parameters.apt, 10),
       };
@@ -564,3 +562,3 @@ if (primarySsrc && secondarySsrc) {
           ssrc: primarySsrc,
-          mechanism: hasUlpfec ? 'red+ulpfec' : 'red'
+          mechanism: hasUlpfec ? 'red+ulpfec' : 'red',
         };
@@ -573,3 +571,3 @@ encodingParameters.push(encParam);
     encodingParameters.push({
-      ssrc: primarySsrc
+      ssrc: primarySsrc,
     });
@@ -579,3 +577,3 @@ }
   // we support both b=AS and b=TIAS but interpret AS as TIAS.
-  var bandwidth = SDPUtils.matchPrefix(mediaSection, 'b=');
+  let bandwidth = SDPUtils.matchPrefix(mediaSection, 'b=');
   if (bandwidth.length) {
@@ -591,3 +589,3 @@ if (bandwidth[0].indexOf('b=TIAS:') === 0) {
     }
-    encodingParameters.forEach(function(params) {
+    encodingParameters.forEach(params => {
       params.maxBitrate = bandwidth;
@@ -601,13 +599,9 @@ });
 SDPUtils.parseRtcpParameters = function(mediaSection) {
-  var rtcpParameters = {};
+  const rtcpParameters = {};
 
-  // Gets the first SSRC. Note tha with RTX there might be multiple
+  // Gets the first SSRC. Note that with RTX there might be multiple
   // SSRCs.
-  var remoteSsrc = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
-    .map(function(line) {
-      return SDPUtils.parseSsrcMedia(line);
-    })
-    .filter(function(obj) {
-      return obj.attribute === 'cname';
-    })[0];
+  const remoteSsrc = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
+    .map(line => SDPUtils.parseSsrcMedia(line))
+    .filter(obj => obj.attribute === 'cname')[0];
   if (remoteSsrc) {
@@ -620,3 +614,3 @@ rtcpParameters.cname = remoteSsrc.value;
   // compound is !reducedSize
-  var rsize = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-rsize');
+  const rsize = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-rsize');
   rtcpParameters.reducedSize = rsize.length > 0;
@@ -627,3 +621,3 @@ rtcpParameters.compound = rsize.length === 0;
   // Note that Edge does not support unmuxed RTCP.
-  var mux = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-mux');
+  const mux = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-mux');
   rtcpParameters.mux = mux.length > 0;
@@ -634,7 +628,23 @@
 
+SDPUtils.writeRtcpParameters = function(rtcpParameters) {
+  let sdp = '';
+  if (rtcpParameters.reducedSize) {
+    sdp += 'a=rtcp-rsize\r\n';
+  }
+  if (rtcpParameters.mux) {
+    sdp += 'a=rtcp-mux\r\n';
+  }
+  if (rtcpParameters.ssrc !== undefined && rtcpParameters.cname) {
+    sdp += 'a=ssrc:' + rtcpParameters.ssrc +
+      ' cname:' + rtcpParameters.cname + '\r\n';
+  }
+  return sdp;
+};
+
+
 // parses either a=msid: or a=ssrc:... msid lines and returns
 // the id of the MediaStream and MediaStreamTrack.
 SDPUtils.parseMsid = function(mediaSection) {
-  var parts;
-  var spec = SDPUtils.matchPrefix(mediaSection, 'a=msid:');
+  let parts;
+  const spec = SDPUtils.matchPrefix(mediaSection, 'a=msid:');
   if (spec.length === 1) {
@@ -644,9 +654,5 @@ parts = spec[0].substr(7).split(' ');
   }
-  var planB = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
-    .map(function(line) {
-      return SDPUtils.parseSsrcMedia(line);
-    })
-    .filter(function(msidParts) {
-      return msidParts.attribute === 'msid';
-    });
+  const planB = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
+    .map(line => SDPUtils.parseSsrcMedia(line))
+    .filter(msidParts => msidParts.attribute === 'msid');
   if (planB.length > 0) {
@@ -662,5 +668,5 @@ parts = planB[0].value.split(' ');
 SDPUtils.parseSctpDescription = function(mediaSection) {
-  var mline = SDPUtils.parseMLine(mediaSection);
-  var maxSizeLine = SDPUtils.matchPrefix(mediaSection, 'a=max-message-size:');
-  var maxMessageSize;
+  const mline = SDPUtils.parseMLine(mediaSection);
+  const maxSizeLine = SDPUtils.matchPrefix(mediaSection, 'a=max-message-size:');
+  let maxMessageSize;
   if (maxSizeLine.length > 0) {
@@ -672,3 +678,3 @@ maxMessageSize = parseInt(maxSizeLine[0].substr(19), 10);
   }
-  var sctpPort = SDPUtils.matchPrefix(mediaSection, 'a=sctp-port:');
+  const sctpPort = SDPUtils.matchPrefix(mediaSection, 'a=sctp-port:');
   if (sctpPort.length > 0) {
@@ -678,8 +684,8 @@ return {
       protocol: mline.fmt,
-      maxMessageSize: maxMessageSize
+      maxMessageSize,
     };
   }
-  var sctpMapLines = SDPUtils.matchPrefix(mediaSection, 'a=sctpmap:');
+  const sctpMapLines = SDPUtils.matchPrefix(mediaSection, 'a=sctpmap:');
   if (sctpMapLines.length > 0) {
-    var parts = SDPUtils.matchPrefix(mediaSection, 'a=sctpmap:')[0]
+    const parts = sctpMapLines[0]
       .substr(10)
@@ -690,3 +696,3 @@ .split(' ');
       protocol: parts[1],
-      maxMessageSize: maxMessageSize
+      maxMessageSize,
     };
@@ -702,3 +708,3 @@ }
 SDPUtils.writeSctpDescription = function(media, sctp) {
-  var output = [];
+  let output = [];
   if (media.protocol !== 'DTLS/SCTP') {
@@ -708,3 +714,3 @@ output = [
       'c=IN IP4 0.0.0.0\r\n',
-      'a=sctp-port:' + sctp.port + '\r\n'
+      'a=sctp-port:' + sctp.port + '\r\n',
     ];
@@ -715,3 +721,3 @@ } else {
       'c=IN IP4 0.0.0.0\r\n',
-      'a=sctpmap:' + sctp.port + ' ' + sctp.protocol + ' 65535\r\n'
+      'a=sctpmap:' + sctp.port + ' ' + sctp.protocol + ' 65535\r\n',
     ];
@@ -733,3 +739,3 @@ }
 
-// Write boilder plate for start of SDP
+// Write boiler plate for start of SDP
 // sessId argument is optional - if not supplied it will
@@ -740,4 +746,4 @@ // be generated randomly
 SDPUtils.writeSessionBoilerplate = function(sessId, sessVer, sessUser) {
-  var sessionId;
-  var version = sessVer !== undefined ? sessVer : 2;
+  let sessionId;
+  const version = sessVer !== undefined ? sessVer : 2;
   if (sessId) {
@@ -748,3 +754,3 @@ sessionId = sessId;
   }
-  var user = sessUser || 'thisisadapterortc';
+  const user = sessUser || 'thisisadapterortc';
   // FIXME: sess-id should be an NTP timestamp.
@@ -758,61 +764,7 @@ return 'v=0\r\n' +
 
-SDPUtils.writeMediaSection = function(transceiver, caps, type, stream) {
-  var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps);
-
-  // Map ICE parameters (ufrag, pwd) to SDP.
-  sdp += SDPUtils.writeIceParameters(
-    transceiver.iceGatherer.getLocalParameters());
-
-  // Map DTLS parameters to SDP.
-  sdp += SDPUtils.writeDtlsParameters(
-    transceiver.dtlsTransport.getLocalParameters(),
-    type === 'offer' ? 'actpass' : 'active');
-
-  sdp += 'a=mid:' + transceiver.mid + '\r\n';
-
-  if (transceiver.direction) {
-    sdp += 'a=' + transceiver.direction + '\r\n';
-  } else if (transceiver.rtpSender && transceiver.rtpReceiver) {
-    sdp += 'a=sendrecv\r\n';
-  } else if (transceiver.rtpSender) {
-    sdp += 'a=sendonly\r\n';
-  } else if (transceiver.rtpReceiver) {
-    sdp += 'a=recvonly\r\n';
-  } else {
-    sdp += 'a=inactive\r\n';
-  }
-
-  if (transceiver.rtpSender) {
-    // spec.
-    var msid = 'msid:' + stream.id + ' ' +
-        transceiver.rtpSender.track.id + '\r\n';
-    sdp += 'a=' + msid;
-
-    // for Chrome.
-    sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
-        ' ' + msid;
-    if (transceiver.sendEncodingParameters[0].rtx) {
-      sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
-          ' ' + msid;
-      sdp += 'a=ssrc-group:FID ' +
-          transceiver.sendEncodingParameters[0].ssrc + ' ' +
-          transceiver.sendEncodingParameters[0].rtx.ssrc +
-          '\r\n';
-    }
-  }
-  // FIXME: this should be written by writeRtpDescription.
-  sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
-      ' cname:' + SDPUtils.localCName + '\r\n';
-  if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) {
-    sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
-        ' cname:' + SDPUtils.localCName + '\r\n';
-  }
-  return sdp;
-};
-
 // Gets the direction from the mediaSection or the sessionpart.
 SDPUtils.getDirection = function(mediaSection, sessionpart) {
   // Look for sendrecv, sendonly, recvonly, inactive, default to sendrecv.
-  var lines = SDPUtils.splitLines(mediaSection);
-  for (var i = 0; i < lines.length; i++) {
+  const lines = SDPUtils.splitLines(mediaSection);
+  for (let i = 0; i < lines.length; i++) {
     switch (lines[i]) {
@@ -835,4 +787,4 @@ case 'a=sendrecv':
 SDPUtils.getKind = function(mediaSection) {
-  var lines = SDPUtils.splitLines(mediaSection);
-  var mline = lines[0].split(' ');
+  const lines = SDPUtils.splitLines(mediaSection);
+  const mline = lines[0].split(' ');
   return mline[0].substr(2);
@@ -846,4 +798,4 @@ };
 SDPUtils.parseMLine = function(mediaSection) {
-  var lines = SDPUtils.splitLines(mediaSection);
-  var parts = lines[0].substr(2).split(' ');
+  const lines = SDPUtils.splitLines(mediaSection);
+  const parts = lines[0].substr(2).split(' ');
   return {
@@ -853,3 +805,3 @@ kind: parts[0],
     protocol: parts[2],
-    fmt: parts.slice(3).join(' ')
+    fmt: parts.slice(3).join(' '),
   };
@@ -859,4 +811,4 @@ };
 SDPUtils.parseOLine = function(mediaSection) {
-  var line = SDPUtils.matchPrefix(mediaSection, 'o=')[0];
-  var parts = line.substr(2).split(' ');
+  const line = SDPUtils.matchPrefix(mediaSection, 'o=')[0];
+  const parts = line.substr(2).split(' ');
   return {
@@ -868,3 +820,3 @@ username: parts[0],
     addressType: parts[4],
-    address: parts[5]
+    address: parts[5],
   };
@@ -878,4 +830,4 @@ };
   }
-  var lines = SDPUtils.splitLines(blob);
-  for (var i = 0; i < lines.length; i++) {
+  const lines = SDPUtils.splitLines(blob);
+  for (let i = 0; i < lines.length; i++) {
     if (lines[i].length < 2 || lines[i].charAt(1) !== '=') {
@@ -882,0 +834,0 @@ return false;

No alert changes

Improved metrics

Total package byte prevSize

120063

increased by21.48%

Lines of code

1395

increased by84.77%

Worsened metrics

Dev dependency count

10

increased by42.86%

Number of package files

11

decreased by-8.33%

No dependency changes