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Diffstat (limited to 'contrib/jitsimeetbridge/unjingle/strophe.jingle.sdp.js')
| -rw-r--r-- | contrib/jitsimeetbridge/unjingle/strophe.jingle.sdp.js | 712 |
1 files changed, 0 insertions, 712 deletions
diff --git a/contrib/jitsimeetbridge/unjingle/strophe.jingle.sdp.js b/contrib/jitsimeetbridge/unjingle/strophe.jingle.sdp.js deleted file mode 100644 index e99dd7bf96..0000000000 --- a/contrib/jitsimeetbridge/unjingle/strophe.jingle.sdp.js +++ /dev/null @@ -1,712 +0,0 @@ -/* jshint -W117 */ -// SDP STUFF -function SDP(sdp) { - this.media = sdp.split('\r\nm='); - for (var i = 1; i < this.media.length; i++) { - this.media[i] = 'm=' + this.media[i]; - if (i != this.media.length - 1) { - this.media[i] += '\r\n'; - } - } - this.session = this.media.shift() + '\r\n'; - this.raw = this.session + this.media.join(''); -} - -exports.SDP = SDP; - -var jsdom = require("jsdom"); -var window = jsdom.jsdom().parentWindow; -var $ = require('jquery')(window); - -var SDPUtil = require('./strophe.jingle.sdp.util.js').SDPUtil; - -/** - * Returns map of MediaChannel mapped per channel idx. - */ -SDP.prototype.getMediaSsrcMap = function() { - var self = this; - var media_ssrcs = {}; - for (channelNum = 0; channelNum < self.media.length; channelNum++) { - modified = true; - tmp = SDPUtil.find_lines(self.media[channelNum], 'a=ssrc:'); - var type = SDPUtil.parse_mid(SDPUtil.find_line(self.media[channelNum], 'a=mid:')); - var channel = new MediaChannel(channelNum, type); - media_ssrcs[channelNum] = channel; - tmp.forEach(function (line) { - var linessrc = line.substring(7).split(' ')[0]; - // allocate new ChannelSsrc - if(!channel.ssrcs[linessrc]) { - channel.ssrcs[linessrc] = new ChannelSsrc(linessrc, type); - } - channel.ssrcs[linessrc].lines.push(line); - }); - tmp = SDPUtil.find_lines(self.media[channelNum], 'a=ssrc-group:'); - tmp.forEach(function(line){ - var semantics = line.substr(0, idx).substr(13); - var ssrcs = line.substr(14 + semantics.length).split(' '); - if (ssrcs.length != 0) { - var ssrcGroup = new ChannelSsrcGroup(semantics, ssrcs); - channel.ssrcGroups.push(ssrcGroup); - } - }); - } - return media_ssrcs; -}; -/** - * Returns <tt>true</tt> if this SDP contains given SSRC. - * @param ssrc the ssrc to check. - * @returns {boolean} <tt>true</tt> if this SDP contains given SSRC. - */ -SDP.prototype.containsSSRC = function(ssrc) { - var channels = this.getMediaSsrcMap(); - var contains = false; - Object.keys(channels).forEach(function(chNumber){ - var channel = channels[chNumber]; - //console.log("Check", channel, ssrc); - if(Object.keys(channel.ssrcs).indexOf(ssrc) != -1){ - contains = true; - } - }); - return contains; -}; - -/** - * Returns map of MediaChannel that contains only media not contained in <tt>otherSdp</tt>. Mapped by channel idx. - * @param otherSdp the other SDP to check ssrc with. - */ -SDP.prototype.getNewMedia = function(otherSdp) { - - // this could be useful in Array.prototype. - function arrayEquals(array) { - // if the other array is a falsy value, return - if (!array) - return false; - - // compare lengths - can save a lot of time - if (this.length != array.length) - return false; - - for (var i = 0, l=this.length; i < l; i++) { - // Check if we have nested arrays - if (this[i] instanceof Array && array[i] instanceof Array) { - // recurse into the nested arrays - if (!this[i].equals(array[i])) - return false; - } - else if (this[i] != array[i]) { - // Warning - two different object instances will never be equal: {x:20} != {x:20} - return false; - } - } - return true; - } - - var myMedia = this.getMediaSsrcMap(); - var othersMedia = otherSdp.getMediaSsrcMap(); - var newMedia = {}; - Object.keys(othersMedia).forEach(function(channelNum) { - var myChannel = myMedia[channelNum]; - var othersChannel = othersMedia[channelNum]; - if(!myChannel && othersChannel) { - // Add whole channel - newMedia[channelNum] = othersChannel; - return; - } - // Look for new ssrcs accross the channel - Object.keys(othersChannel.ssrcs).forEach(function(ssrc) { - if(Object.keys(myChannel.ssrcs).indexOf(ssrc) === -1) { - // Allocate channel if we've found ssrc that doesn't exist in our channel - if(!newMedia[channelNum]){ - newMedia[channelNum] = new MediaChannel(othersChannel.chNumber, othersChannel.mediaType); - } - newMedia[channelNum].ssrcs[ssrc] = othersChannel.ssrcs[ssrc]; - } - }); - - // Look for new ssrc groups across the channels - othersChannel.ssrcGroups.forEach(function(otherSsrcGroup){ - - // try to match the other ssrc-group with an ssrc-group of ours - var matched = false; - for (var i = 0; i < myChannel.ssrcGroups.length; i++) { - var mySsrcGroup = myChannel.ssrcGroups[i]; - if (otherSsrcGroup.semantics == mySsrcGroup.semantics - && arrayEquals.apply(otherSsrcGroup.ssrcs, [mySsrcGroup.ssrcs])) { - - matched = true; - break; - } - } - - if (!matched) { - // Allocate channel if we've found an ssrc-group that doesn't - // exist in our channel - - if(!newMedia[channelNum]){ - newMedia[channelNum] = new MediaChannel(othersChannel.chNumber, othersChannel.mediaType); - } - newMedia[channelNum].ssrcGroups.push(otherSsrcGroup); - } - }); - }); - return newMedia; -}; - -// remove iSAC and CN from SDP -SDP.prototype.mangle = function () { - var i, j, mline, lines, rtpmap, newdesc; - for (i = 0; i < this.media.length; i++) { - lines = this.media[i].split('\r\n'); - lines.pop(); // remove empty last element - mline = SDPUtil.parse_mline(lines.shift()); - if (mline.media != 'audio') - continue; - newdesc = ''; - mline.fmt.length = 0; - for (j = 0; j < lines.length; j++) { - if (lines[j].substr(0, 9) == 'a=rtpmap:') { - rtpmap = SDPUtil.parse_rtpmap(lines[j]); - if (rtpmap.name == 'CN' || rtpmap.name == 'ISAC') - continue; - mline.fmt.push(rtpmap.id); - newdesc += lines[j] + '\r\n'; - } else { - newdesc += lines[j] + '\r\n'; - } - } - this.media[i] = SDPUtil.build_mline(mline) + '\r\n'; - this.media[i] += newdesc; - } - this.raw = this.session + this.media.join(''); -}; - -// remove lines matching prefix from session section -SDP.prototype.removeSessionLines = function(prefix) { - var self = this; - var lines = SDPUtil.find_lines(this.session, prefix); - lines.forEach(function(line) { - self.session = self.session.replace(line + '\r\n', ''); - }); - this.raw = this.session + this.media.join(''); - return lines; -} -// remove lines matching prefix from a media section specified by mediaindex -// TODO: non-numeric mediaindex could match mid -SDP.prototype.removeMediaLines = function(mediaindex, prefix) { - var self = this; - var lines = SDPUtil.find_lines(this.media[mediaindex], prefix); - lines.forEach(function(line) { - self.media[mediaindex] = self.media[mediaindex].replace(line + '\r\n', ''); - }); - this.raw = this.session + this.media.join(''); - return lines; -} - -// add content's to a jingle element -SDP.prototype.toJingle = function (elem, thecreator) { - var i, j, k, mline, ssrc, rtpmap, tmp, line, lines; - var self = this; - // new bundle plan - if (SDPUtil.find_line(this.session, 'a=group:')) { - lines = SDPUtil.find_lines(this.session, 'a=group:'); - for (i = 0; i < lines.length; i++) { - tmp = lines[i].split(' '); - var semantics = tmp.shift().substr(8); - elem.c('group', {xmlns: 'urn:xmpp:jingle:apps:grouping:0', semantics:semantics}); - for (j = 0; j < tmp.length; j++) { - elem.c('content', {name: tmp[j]}).up(); - } - elem.up(); - } - } - // old bundle plan, to be removed - var bundle = []; - if (SDPUtil.find_line(this.session, 'a=group:BUNDLE')) { - bundle = SDPUtil.find_line(this.session, 'a=group:BUNDLE ').split(' '); - bundle.shift(); - } - for (i = 0; i < this.media.length; i++) { - mline = SDPUtil.parse_mline(this.media[i].split('\r\n')[0]); - if (!(mline.media === 'audio' || - mline.media === 'video' || - mline.media === 'application')) - { - continue; - } - if (SDPUtil.find_line(this.media[i], 'a=ssrc:')) { - ssrc = SDPUtil.find_line(this.media[i], 'a=ssrc:').substring(7).split(' ')[0]; // take the first - } else { - ssrc = false; - } - - elem.c('content', {creator: thecreator, name: mline.media}); - if (SDPUtil.find_line(this.media[i], 'a=mid:')) { - // prefer identifier from a=mid if present - var mid = SDPUtil.parse_mid(SDPUtil.find_line(this.media[i], 'a=mid:')); - elem.attrs({ name: mid }); - - // old BUNDLE plan, to be removed - if (bundle.indexOf(mid) !== -1) { - elem.c('bundle', {xmlns: 'http://estos.de/ns/bundle'}).up(); - bundle.splice(bundle.indexOf(mid), 1); - } - } - - if (SDPUtil.find_line(this.media[i], 'a=rtpmap:').length) - { - elem.c('description', - {xmlns: 'urn:xmpp:jingle:apps:rtp:1', - media: mline.media }); - if (ssrc) { - elem.attrs({ssrc: ssrc}); - } - for (j = 0; j < mline.fmt.length; j++) { - rtpmap = SDPUtil.find_line(this.media[i], 'a=rtpmap:' + mline.fmt[j]); - elem.c('payload-type', SDPUtil.parse_rtpmap(rtpmap)); - // put any 'a=fmtp:' + mline.fmt[j] lines into <param name=foo value=bar/> - if (SDPUtil.find_line(this.media[i], 'a=fmtp:' + mline.fmt[j])) { - tmp = SDPUtil.parse_fmtp(SDPUtil.find_line(this.media[i], 'a=fmtp:' + mline.fmt[j])); - for (k = 0; k < tmp.length; k++) { - elem.c('parameter', tmp[k]).up(); - } - } - this.RtcpFbToJingle(i, elem, mline.fmt[j]); // XEP-0293 -- map a=rtcp-fb - - elem.up(); - } - if (SDPUtil.find_line(this.media[i], 'a=crypto:', this.session)) { - elem.c('encryption', {required: 1}); - var crypto = SDPUtil.find_lines(this.media[i], 'a=crypto:', this.session); - crypto.forEach(function(line) { - elem.c('crypto', SDPUtil.parse_crypto(line)).up(); - }); - elem.up(); // end of encryption - } - - if (ssrc) { - // new style mapping - elem.c('source', { ssrc: ssrc, xmlns: 'urn:xmpp:jingle:apps:rtp:ssma:0' }); - // FIXME: group by ssrc and support multiple different ssrcs - var ssrclines = SDPUtil.find_lines(this.media[i], 'a=ssrc:'); - ssrclines.forEach(function(line) { - idx = line.indexOf(' '); - var linessrc = line.substr(0, idx).substr(7); - if (linessrc != ssrc) { - elem.up(); - ssrc = linessrc; - elem.c('source', { ssrc: ssrc, xmlns: 'urn:xmpp:jingle:apps:rtp:ssma:0' }); - } - var kv = line.substr(idx + 1); - elem.c('parameter'); - if (kv.indexOf(':') == -1) { - elem.attrs({ name: kv }); - } else { - elem.attrs({ name: kv.split(':', 2)[0] }); - elem.attrs({ value: kv.split(':', 2)[1] }); - } - elem.up(); - }); - elem.up(); - - // old proprietary mapping, to be removed at some point - tmp = SDPUtil.parse_ssrc(this.media[i]); - tmp.xmlns = 'http://estos.de/ns/ssrc'; - tmp.ssrc = ssrc; - elem.c('ssrc', tmp).up(); // ssrc is part of description - - // XEP-0339 handle ssrc-group attributes - var ssrc_group_lines = SDPUtil.find_lines(this.media[i], 'a=ssrc-group:'); - ssrc_group_lines.forEach(function(line) { - idx = line.indexOf(' '); - var semantics = line.substr(0, idx).substr(13); - var ssrcs = line.substr(14 + semantics.length).split(' '); - if (ssrcs.length != 0) { - elem.c('ssrc-group', { semantics: semantics, xmlns: 'urn:xmpp:jingle:apps:rtp:ssma:0' }); - ssrcs.forEach(function(ssrc) { - elem.c('source', { ssrc: ssrc }) - .up(); - }); - elem.up(); - } - }); - } - - if (SDPUtil.find_line(this.media[i], 'a=rtcp-mux')) { - elem.c('rtcp-mux').up(); - } - - // XEP-0293 -- map a=rtcp-fb:* - this.RtcpFbToJingle(i, elem, '*'); - - // XEP-0294 - if (SDPUtil.find_line(this.media[i], 'a=extmap:')) { - lines = SDPUtil.find_lines(this.media[i], 'a=extmap:'); - for (j = 0; j < lines.length; j++) { - tmp = SDPUtil.parse_extmap(lines[j]); - elem.c('rtp-hdrext', { xmlns: 'urn:xmpp:jingle:apps:rtp:rtp-hdrext:0', - uri: tmp.uri, - id: tmp.value }); - if (tmp.hasOwnProperty('direction')) { - switch (tmp.direction) { - case 'sendonly': - elem.attrs({senders: 'responder'}); - break; - case 'recvonly': - elem.attrs({senders: 'initiator'}); - break; - case 'sendrecv': - elem.attrs({senders: 'both'}); - break; - case 'inactive': - elem.attrs({senders: 'none'}); - break; - } - } - // TODO: handle params - elem.up(); - } - } - elem.up(); // end of description - } - - // map ice-ufrag/pwd, dtls fingerprint, candidates - this.TransportToJingle(i, elem); - - if (SDPUtil.find_line(this.media[i], 'a=sendrecv', this.session)) { - elem.attrs({senders: 'both'}); - } else if (SDPUtil.find_line(this.media[i], 'a=sendonly', this.session)) { - elem.attrs({senders: 'initiator'}); - } else if (SDPUtil.find_line(this.media[i], 'a=recvonly', this.session)) { - elem.attrs({senders: 'responder'}); - } else if (SDPUtil.find_line(this.media[i], 'a=inactive', this.session)) { - elem.attrs({senders: 'none'}); - } - if (mline.port == '0') { - // estos hack to reject an m-line - elem.attrs({senders: 'rejected'}); - } - elem.up(); // end of content - } - elem.up(); - return elem; -}; - -SDP.prototype.TransportToJingle = function (mediaindex, elem) { - var i = mediaindex; - var tmp; - var self = this; - elem.c('transport'); - - // XEP-0343 DTLS/SCTP - if (SDPUtil.find_line(this.media[mediaindex], 'a=sctpmap:').length) - { - var sctpmap = SDPUtil.find_line( - this.media[i], 'a=sctpmap:', self.session); - if (sctpmap) - { - var sctpAttrs = SDPUtil.parse_sctpmap(sctpmap); - elem.c('sctpmap', - { - xmlns: 'urn:xmpp:jingle:transports:dtls-sctp:1', - number: sctpAttrs[0], /* SCTP port */ - protocol: sctpAttrs[1], /* protocol */ - }); - // Optional stream count attribute - if (sctpAttrs.length > 2) - elem.attrs({ streams: sctpAttrs[2]}); - elem.up(); - } - } - // XEP-0320 - var fingerprints = SDPUtil.find_lines(this.media[mediaindex], 'a=fingerprint:', this.session); - fingerprints.forEach(function(line) { - tmp = SDPUtil.parse_fingerprint(line); - tmp.xmlns = 'urn:xmpp:jingle:apps:dtls:0'; - elem.c('fingerprint').t(tmp.fingerprint); - delete tmp.fingerprint; - line = SDPUtil.find_line(self.media[mediaindex], 'a=setup:', self.session); - if (line) { - tmp.setup = line.substr(8); - } - elem.attrs(tmp); - elem.up(); // end of fingerprint - }); - tmp = SDPUtil.iceparams(this.media[mediaindex], this.session); - if (tmp) { - tmp.xmlns = 'urn:xmpp:jingle:transports:ice-udp:1'; - elem.attrs(tmp); - // XEP-0176 - if (SDPUtil.find_line(this.media[mediaindex], 'a=candidate:', this.session)) { // add any a=candidate lines - var lines = SDPUtil.find_lines(this.media[mediaindex], 'a=candidate:', this.session); - lines.forEach(function (line) { - elem.c('candidate', SDPUtil.candidateToJingle(line)).up(); - }); - } - } - elem.up(); // end of transport -} - -SDP.prototype.RtcpFbToJingle = function (mediaindex, elem, payloadtype) { // XEP-0293 - var lines = SDPUtil.find_lines(this.media[mediaindex], 'a=rtcp-fb:' + payloadtype); - lines.forEach(function (line) { - var tmp = SDPUtil.parse_rtcpfb(line); - if (tmp.type == 'trr-int') { - elem.c('rtcp-fb-trr-int', {xmlns: 'urn:xmpp:jingle:apps:rtp:rtcp-fb:0', value: tmp.params[0]}); - elem.up(); - } else { - elem.c('rtcp-fb', {xmlns: 'urn:xmpp:jingle:apps:rtp:rtcp-fb:0', type: tmp.type}); - if (tmp.params.length > 0) { - elem.attrs({'subtype': tmp.params[0]}); - } - elem.up(); - } - }); -}; - -SDP.prototype.RtcpFbFromJingle = function (elem, payloadtype) { // XEP-0293 - var media = ''; - var tmp = elem.find('>rtcp-fb-trr-int[xmlns="urn:xmpp:jingle:apps:rtp:rtcp-fb:0"]'); - if (tmp.length) { - media += 'a=rtcp-fb:' + '*' + ' ' + 'trr-int' + ' '; - if (tmp.attr('value')) { - media += tmp.attr('value'); - } else { - media += '0'; - } - media += '\r\n'; - } - tmp = elem.find('>rtcp-fb[xmlns="urn:xmpp:jingle:apps:rtp:rtcp-fb:0"]'); - tmp.each(function () { - media += 'a=rtcp-fb:' + payloadtype + ' ' + $(this).attr('type'); - if ($(this).attr('subtype')) { - media += ' ' + $(this).attr('subtype'); - } - media += '\r\n'; - }); - return media; -}; - -// construct an SDP from a jingle stanza -SDP.prototype.fromJingle = function (jingle) { - var self = this; - this.raw = 'v=0\r\n' + - 'o=- ' + '1923518516' + ' 2 IN IP4 0.0.0.0\r\n' +// FIXME - 's=-\r\n' + - 't=0 0\r\n'; - // http://tools.ietf.org/html/draft-ietf-mmusic-sdp-bundle-negotiation-04#section-8 - if ($(jingle).find('>group[xmlns="urn:xmpp:jingle:apps:grouping:0"]').length) { - $(jingle).find('>group[xmlns="urn:xmpp:jingle:apps:grouping:0"]').each(function (idx, group) { - var contents = $(group).find('>content').map(function (idx, content) { - return content.getAttribute('name'); - }).get(); - if (contents.length > 0) { - self.raw += 'a=group:' + (group.getAttribute('semantics') || group.getAttribute('type')) + ' ' + contents.join(' ') + '\r\n'; - } - }); - } else if ($(jingle).find('>group[xmlns="urn:ietf:rfc:5888"]').length) { - // temporary namespace, not to be used. to be removed soon. - $(jingle).find('>group[xmlns="urn:ietf:rfc:5888"]').each(function (idx, group) { - var contents = $(group).find('>content').map(function (idx, content) { - return content.getAttribute('name'); - }).get(); - if (group.getAttribute('type') !== null && contents.length > 0) { - self.raw += 'a=group:' + group.getAttribute('type') + ' ' + contents.join(' ') + '\r\n'; - } - }); - } else { - // for backward compability, to be removed soon - // assume all contents are in the same bundle group, can be improved upon later - var bundle = $(jingle).find('>content').filter(function (idx, content) { - //elem.c('bundle', {xmlns:'http://estos.de/ns/bundle'}); - return $(content).find('>bundle').length > 0; - }).map(function (idx, content) { - return content.getAttribute('name'); - }).get(); - if (bundle.length) { - this.raw += 'a=group:BUNDLE ' + bundle.join(' ') + '\r\n'; - } - } - - this.session = this.raw; - jingle.find('>content').each(function () { - var m = self.jingle2media($(this)); - self.media.push(m); - }); - - // reconstruct msid-semantic -- apparently not necessary - /* - var msid = SDPUtil.parse_ssrc(this.raw); - if (msid.hasOwnProperty('mslabel')) { - this.session += "a=msid-semantic: WMS " + msid.mslabel + "\r\n"; - } - */ - - this.raw = this.session + this.media.join(''); -}; - -// translate a jingle content element into an an SDP media part -SDP.prototype.jingle2media = function (content) { - var media = '', - desc = content.find('description'), - ssrc = desc.attr('ssrc'), - self = this, - tmp; - var sctp = content.find( - '>transport>sctpmap[xmlns="urn:xmpp:jingle:transports:dtls-sctp:1"]'); - - tmp = { media: desc.attr('media') }; - tmp.port = '1'; - if (content.attr('senders') == 'rejected') { - // estos hack to reject an m-line. - tmp.port = '0'; - } - if (content.find('>transport>fingerprint').length || desc.find('encryption').length) { - if (sctp.length) - tmp.proto = 'DTLS/SCTP'; - else - tmp.proto = 'RTP/SAVPF'; - } else { - tmp.proto = 'RTP/AVPF'; - } - if (!sctp.length) - { - tmp.fmt = desc.find('payload-type').map( - function () { return this.getAttribute('id'); }).get(); - media += SDPUtil.build_mline(tmp) + '\r\n'; - } - else - { - media += 'm=application 1 DTLS/SCTP ' + sctp.attr('number') + '\r\n'; - media += 'a=sctpmap:' + sctp.attr('number') + - ' ' + sctp.attr('protocol'); - - var streamCount = sctp.attr('streams'); - if (streamCount) - media += ' ' + streamCount + '\r\n'; - else - media += '\r\n'; - } - - media += 'c=IN IP4 0.0.0.0\r\n'; - if (!sctp.length) - media += 'a=rtcp:1 IN IP4 0.0.0.0\r\n'; - //tmp = content.find('>transport[xmlns="urn:xmpp:jingle:transports:ice-udp:1"]'); - tmp = content.find('>bundle>transport[xmlns="urn:xmpp:jingle:transports:ice-udp:1"]'); - //console.log('transports: '+content.find('>transport[xmlns="urn:xmpp:jingle:transports:ice-udp:1"]').length); - //console.log('bundle.transports: '+content.find('>bundle>transport[xmlns="urn:xmpp:jingle:transports:ice-udp:1"]').length); - //console.log("tmp fingerprint: "+tmp.find('>fingerprint').innerHTML); - if (tmp.length) { - if (tmp.attr('ufrag')) { - media += SDPUtil.build_iceufrag(tmp.attr('ufrag')) + '\r\n'; - } - if (tmp.attr('pwd')) { - media += SDPUtil.build_icepwd(tmp.attr('pwd')) + '\r\n'; - } - tmp.find('>fingerprint').each(function () { - // FIXME: check namespace at some point - media += 'a=fingerprint:' + this.getAttribute('hash'); - media += ' ' + $(this).text(); - media += '\r\n'; - //console.log("mline "+media); - if (this.getAttribute('setup')) { - media += 'a=setup:' + this.getAttribute('setup') + '\r\n'; - } - }); - } - switch (content.attr('senders')) { - case 'initiator': - media += 'a=sendonly\r\n'; - break; - case 'responder': - media += 'a=recvonly\r\n'; - break; - case 'none': - media += 'a=inactive\r\n'; - break; - case 'both': - media += 'a=sendrecv\r\n'; - break; - } - media += 'a=mid:' + content.attr('name') + '\r\n'; - /*if (content.attr('name') == 'video') { - media += 'a=x-google-flag:conference' + '\r\n'; - }*/ - - // <description><rtcp-mux/></description> - // see http://code.google.com/p/libjingle/issues/detail?id=309 -- no spec though - // and http://mail.jabber.org/pipermail/jingle/2011-December/001761.html - if (desc.find('rtcp-mux').length) { - media += 'a=rtcp-mux\r\n'; - } - - if (desc.find('encryption').length) { - desc.find('encryption>crypto').each(function () { - media += 'a=crypto:' + this.getAttribute('tag'); - media += ' ' + this.getAttribute('crypto-suite'); - media += ' ' + this.getAttribute('key-params'); - if (this.getAttribute('session-params')) { - media += ' ' + this.getAttribute('session-params'); - } - media += '\r\n'; - }); - } - desc.find('payload-type').each(function () { - media += SDPUtil.build_rtpmap(this) + '\r\n'; - if ($(this).find('>parameter').length) { - media += 'a=fmtp:' + this.getAttribute('id') + ' '; - media += $(this).find('parameter').map(function () { return (this.getAttribute('name') ? (this.getAttribute('name') + '=') : '') + this.getAttribute('value'); }).get().join('; '); - media += '\r\n'; - } - // xep-0293 - media += self.RtcpFbFromJingle($(this), this.getAttribute('id')); - }); - - // xep-0293 - media += self.RtcpFbFromJingle(desc, '*'); - - // xep-0294 - tmp = desc.find('>rtp-hdrext[xmlns="urn:xmpp:jingle:apps:rtp:rtp-hdrext:0"]'); - tmp.each(function () { - media += 'a=extmap:' + this.getAttribute('id') + ' ' + this.getAttribute('uri') + '\r\n'; - }); - - content.find('>bundle>transport[xmlns="urn:xmpp:jingle:transports:ice-udp:1"]>candidate').each(function () { - media += SDPUtil.candidateFromJingle(this); - }); - - // XEP-0339 handle ssrc-group attributes - tmp = content.find('description>ssrc-group[xmlns="urn:xmpp:jingle:apps:rtp:ssma:0"]').each(function() { - var semantics = this.getAttribute('semantics'); - var ssrcs = $(this).find('>source').map(function() { - return this.getAttribute('ssrc'); - }).get(); - - if (ssrcs.length != 0) { - media += 'a=ssrc-group:' + semantics + ' ' + ssrcs.join(' ') + '\r\n'; - } - }); - - tmp = content.find('description>source[xmlns="urn:xmpp:jingle:apps:rtp:ssma:0"]'); - tmp.each(function () { - var ssrc = this.getAttribute('ssrc'); - $(this).find('>parameter').each(function () { - media += 'a=ssrc:' + ssrc + ' ' + this.getAttribute('name'); - if (this.getAttribute('value') && this.getAttribute('value').length) - media += ':' + this.getAttribute('value'); - media += '\r\n'; - }); - }); - - if (tmp.length === 0) { - // fallback to proprietary mapping of a=ssrc lines - tmp = content.find('description>ssrc[xmlns="http://estos.de/ns/ssrc"]'); - if (tmp.length) { - media += 'a=ssrc:' + ssrc + ' cname:' + tmp.attr('cname') + '\r\n'; - media += 'a=ssrc:' + ssrc + ' msid:' + tmp.attr('msid') + '\r\n'; - media += 'a=ssrc:' + ssrc + ' mslabel:' + tmp.attr('mslabel') + '\r\n'; - media += 'a=ssrc:' + ssrc + ' label:' + tmp.attr('label') + '\r\n'; - } - } - return media; -}; - |