sdp - npm Package Compare versions

Comparing version 2.9.0 to 2.10.0

package.json

 {
   "name": "sdp",
-  "version": "2.9.0",
+  "version": "2.10.0",
   "description": "SDP parsing and serialization utilities",
@@ -23,5 +23,5 @@ "main": "sdp.js",
     "codecov": "^3.0.4",
-    "eslint": "^2.8.0",
+    "eslint": "^6.0.1",
     "mocha": "^5.2.0",
-    "nyc": "^13.0.0",
+    "nyc": "^14.1.1",
     "sinon": "^2.3.2",
@@ -28,0 +28,0 @@ "sinon-chai": "^2.10.0"

sdp.js

@@ -1,2 +0,2 @@
- /* eslint-env node */
+/* eslint-env node */
 'use strict';
@@ -181,4 +181,4 @@
       (headerExtension.direction && headerExtension.direction !== 'sendrecv'
-          ? '/' + headerExtension.direction
-          : '') +
+        ? '/' + headerExtension.direction
+        : '') +
       ' ' + headerExtension.uri + '\r\n';
@@ -298,3 +298,3 @@ };
   var lines = SDPUtils.matchPrefix(mediaSection + sessionpart,
-      'a=fingerprint:');
+    'a=fingerprint:');
   // Note: a=setup line is ignored since we use the 'auto' role.
@@ -353,11 +353,11 @@ // Note2: 'algorithm' is not case sensitive except in Edge.
     var rtpmapline = SDPUtils.matchPrefix(
-        mediaSection, 'a=rtpmap:' + pt + ' ')[0];
+      mediaSection, 'a=rtpmap:' + pt + ' ')[0];
     if (rtpmapline) {
       var codec = SDPUtils.parseRtpMap(rtpmapline);
       var fmtps = SDPUtils.matchPrefix(
-          mediaSection, 'a=fmtp:' + pt + ' ');
+        mediaSection, 'a=fmtp:' + pt + ' ');
       // Only the first a=fmtp:<pt> is considered.
       codec.parameters = fmtps.length ? SDPUtils.parseFmtp(fmtps[0]) : {};
       codec.rtcpFeedback = SDPUtils.matchPrefix(
-          mediaSection, 'a=rtcp-fb:' + pt + ' ')
+        mediaSection, 'a=rtcp-fb:' + pt + ' ')
         .map(SDPUtils.parseRtcpFb);
@@ -438,8 +438,8 @@ description.codecs.push(codec);
   var ssrcs = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
-  .map(function(line) {
-    return SDPUtils.parseSsrcMedia(line);
-  })
-  .filter(function(parts) {
-    return parts.attribute === 'cname';
-  });
+    .map(function(line) {
+      return SDPUtils.parseSsrcMedia(line);
+    })
+    .filter(function(parts) {
+      return parts.attribute === 'cname';
+    });
   var primarySsrc = ssrcs.length > 0 && ssrcs[0].ssrc;
@@ -449,8 +449,8 @@ var 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);
+    .map(function(line) {
+      var parts = line.substr(17).split(' ');
+      return parts.map(function(part) {
+        return parseInt(part, 10);
+      });
     });
-  });
   if (flows.length > 0 && flows[0].length > 1 && flows[0][0] === primarySsrc) {
@@ -512,8 +512,8 @@ secondarySsrc = flows[0][1];
   var remoteSsrc = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
-      .map(function(line) {
-        return SDPUtils.parseSsrcMedia(line);
-      })
-      .filter(function(obj) {
-        return obj.attribute === 'cname';
-      })[0];
+    .map(function(line) {
+      return SDPUtils.parseSsrcMedia(line);
+    })
+    .filter(function(obj) {
+      return obj.attribute === 'cname';
+    })[0];
   if (remoteSsrc) {
@@ -548,8 +548,8 @@ rtcpParameters.cname = remoteSsrc.value;
   var planB = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
-  .map(function(line) {
-    return SDPUtils.parseSsrcMedia(line);
-  })
-  .filter(function(msidParts) {
-    return msidParts.attribute === 'msid';
-  });
+    .map(function(line) {
+      return SDPUtils.parseSsrcMedia(line);
+    })
+    .filter(function(msidParts) {
+      return msidParts.attribute === 'msid';
+    });
   if (planB.length > 0) {
@@ -561,2 +561,62 @@ parts = planB[0].value.split(' ');
 
+// SCTP
+// parses draft-ietf-mmusic-sctp-sdp-26 first and falls back
+// to draft-ietf-mmusic-sctp-sdp-05
+SDPUtils.parseSctpDescription = function(mediaSection) {
+  var mline = SDPUtils.parseMLine(mediaSection);
+  var maxSizeLine = SDPUtils.matchPrefix(mediaSection, 'a=max-message-size:');
+  var maxMessageSize;
+  if (maxSizeLine.length > 0) {
+    maxMessageSize = parseInt(maxSizeLine[0].substr(19), 10);
+  }
+  if (isNaN(maxMessageSize)) {
+    maxMessageSize = 65536;
+  }
+  var sctpPort = SDPUtils.matchPrefix(mediaSection, 'a=sctp-port:');
+  if (sctpPort.length > 0) {
+    return {
+      port: parseInt(sctpPort[0].substr(12), 10),
+      protocol: mline.fmt,
+      maxMessageSize: maxMessageSize
+    };
+  }
+  var sctpMapLines = SDPUtils.matchPrefix(mediaSection, 'a=sctpmap:');
+  if (sctpMapLines.length > 0) {
+    var parts = SDPUtils.matchPrefix(mediaSection, 'a=sctpmap:')[0]
+      .substr(10)
+      .split(' ');
+    return {
+      port: parseInt(parts[0], 10),
+      protocol: parts[1],
+      maxMessageSize: maxMessageSize
+    };
+  }
+};
+
+// SCTP
+// outputs the draft-ietf-mmusic-sctp-sdp-26 version that all browsers
+// support by now receiving in this format, unless we originally parsed
+// as the draft-ietf-mmusic-sctp-sdp-05 format (indicated by the m-line
+// protocol of DTLS/SCTP -- without UDP/ or TCP/)
+SDPUtils.writeSctpDescription = function(media, sctp) {
+  var output = [];
+  if (media.protocol !== 'DTLS/SCTP') {
+    output = [
+      'm=' + media.kind + ' 9 ' + media.protocol + ' ' + sctp.protocol + '\r\n',
+      'c=IN IP4 0.0.0.0\r\n',
+      'a=sctp-port:' + sctp.port + '\r\n'
+    ];
+  } else {
+    output = [
+      'm=' + media.kind + ' 9 ' + media.protocol + ' ' + sctp.port + '\r\n',
+      'c=IN IP4 0.0.0.0\r\n',
+      'a=sctpmap:' + sctp.port + ' ' + sctp.protocol + ' 65535\r\n'
+    ];
+  }
+  if (sctp.maxMessageSize !== undefined) {
+    output.push('a=max-message-size:' + sctp.maxMessageSize + '\r\n');
+  }
+  return output.join('');
+};
+
 // Generate a session ID for SDP.
@@ -597,8 +657,8 @@ // https://tools.ietf.org/html/draft-ietf-rtcweb-jsep-20#section-5.2.1
   sdp += SDPUtils.writeIceParameters(
-      transceiver.iceGatherer.getLocalParameters());
+    transceiver.iceGatherer.getLocalParameters());
 
   // Map DTLS parameters to SDP.
   sdp += SDPUtils.writeDtlsParameters(
-      transceiver.dtlsTransport.getLocalParameters(),
-      type === 'offer' ? 'actpass' : 'active');
+    transceiver.dtlsTransport.getLocalParameters(),
+    type === 'offer' ? 'actpass' : 'active');
 
@@ -605,0 +665,0 @@ sdp += 'a=mid:' + transceiver.mid + '\r\n';

No alert changes

Improved metrics

Total package byte prevSize

89692

increased by5.14%

Number of package files

12

increased by33.33%

Lines of code

707

increased by8.94%

No dependency changes