mirror of
https://github.com/ggerganov/wave-share.git
synced 2026-02-05 17:06:12 +08:00
348 lines
11 KiB
JavaScript
348 lines
11 KiB
JavaScript
var grammar = {
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v: [{
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name: 'version',
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reg: /^(\d*)$/
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}],
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o: [{ //o=- 20518 0 IN IP4 203.0.113.1
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// NB: sessionId will be a String in most cases because it is huge
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name: 'origin',
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reg: /^(\S*) (\d*) (\d*) (\S*) IP(\d) (\S*)/,
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names: ['username', 'sessionId', 'sessionVersion', 'netType', 'ipVer', 'address'],
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format: '%s %s %d %s IP%d %s'
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}],
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// default parsing of these only (though some of these feel outdated)
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s: [{ name: 'name' }],
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i: [{ name: 'description' }],
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u: [{ name: 'uri' }],
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e: [{ name: 'email' }],
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p: [{ name: 'phone' }],
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z: [{ name: 'timezones' }], // TODO: this one can actually be parsed properly..
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r: [{ name: 'repeats' }], // TODO: this one can also be parsed properly
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//k: [{}], // outdated thing ignored
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t: [{ //t=0 0
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name: 'timing',
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reg: /^(\d*) (\d*)/,
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names: ['start', 'stop'],
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format: '%d %d'
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}],
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c: [{ //c=IN IP4 10.47.197.26
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name: 'connection',
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reg: /^IN IP(\d) (\S*)/,
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names: ['version', 'ip'],
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format: 'IN IP%d %s'
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}],
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b: [{ //b=AS:4000
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push: 'bandwidth',
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reg: /^(TIAS|AS|CT|RR|RS):(\d*)/,
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names: ['type', 'limit'],
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format: '%s:%s'
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}],
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m: [{ //m=video 51744 RTP/AVP 126 97 98 34 31
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// NB: special - pushes to session
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// TODO: rtp/fmtp should be filtered by the payloads found here?
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reg: /^(\w*) (\d*) ([\w\/]*)(?: (.*))?/,
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names: ['type', 'port', 'protocol', 'payloads'],
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format: '%s %d %s %s'
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}],
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a: [
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{ //a=rtpmap:110 opus/48000/2
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push: 'rtp',
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reg: /^rtpmap:(\d*) ([\w\-\.]*)(?:\s*\/(\d*)(?:\s*\/(\S*))?)?/,
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names: ['payload', 'codec', 'rate', 'encoding'],
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format: function (o) {
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return (o.encoding) ?
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'rtpmap:%d %s/%s/%s':
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o.rate ?
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'rtpmap:%d %s/%s':
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'rtpmap:%d %s';
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}
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},
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{ //a=fmtp:108 profile-level-id=24;object=23;bitrate=64000
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//a=fmtp:111 minptime=10; useinbandfec=1
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push: 'fmtp',
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reg: /^fmtp:(\d*) ([\S| ]*)/,
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names: ['payload', 'config'],
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format: 'fmtp:%d %s'
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},
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{ //a=control:streamid=0
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name: 'control',
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reg: /^control:(.*)/,
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format: 'control:%s'
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},
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{ //a=rtcp:65179 IN IP4 193.84.77.194
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name: 'rtcp',
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reg: /^rtcp:(\d*)(?: (\S*) IP(\d) (\S*))?/,
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names: ['port', 'netType', 'ipVer', 'address'],
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format: function (o) {
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return (o.address != null) ?
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'rtcp:%d %s IP%d %s':
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'rtcp:%d';
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}
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},
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{ //a=rtcp-fb:98 trr-int 100
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push: 'rtcpFbTrrInt',
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reg: /^rtcp-fb:(\*|\d*) trr-int (\d*)/,
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names: ['payload', 'value'],
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format: 'rtcp-fb:%d trr-int %d'
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},
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{ //a=rtcp-fb:98 nack rpsi
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push: 'rtcpFb',
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reg: /^rtcp-fb:(\*|\d*) ([\w-_]*)(?: ([\w-_]*))?/,
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names: ['payload', 'type', 'subtype'],
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format: function (o) {
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return (o.subtype != null) ?
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'rtcp-fb:%s %s %s':
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'rtcp-fb:%s %s';
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}
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},
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{ //a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
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//a=extmap:1/recvonly URI-gps-string
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push: 'ext',
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reg: /^extmap:(\d+)(?:\/(\w+))? (\S*)(?: (\S*))?/,
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names: ['value', 'direction', 'uri', 'config'],
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format: function (o) {
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return 'extmap:%d' + (o.direction ? '/%s' : '%v') + ' %s' + (o.config ? ' %s' : '');
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}
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},
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{ //a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:PS1uQCVeeCFCanVmcjkpPywjNWhcYD0mXXtxaVBR|2^20|1:32
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push: 'crypto',
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reg: /^crypto:(\d*) ([\w_]*) (\S*)(?: (\S*))?/,
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names: ['id', 'suite', 'config', 'sessionConfig'],
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format: function (o) {
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return (o.sessionConfig != null) ?
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'crypto:%d %s %s %s':
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'crypto:%d %s %s';
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}
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},
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{ //a=setup:actpass
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name: 'setup',
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reg: /^setup:(\w*)/,
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format: 'setup:%s'
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},
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{ //a=mid:1
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name: 'mid',
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reg: /^mid:([^\s]*)/,
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format: 'mid:%s'
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},
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{ //a=msid:0c8b064d-d807-43b4-b434-f92a889d8587 98178685-d409-46e0-8e16-7ef0db0db64a
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name: 'msid',
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reg: /^msid:(.*)/,
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format: 'msid:%s'
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},
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{ //a=ptime:20
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name: 'ptime',
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reg: /^ptime:(\d*)/,
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format: 'ptime:%d'
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},
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{ //a=maxptime:60
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name: 'maxptime',
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reg: /^maxptime:(\d*)/,
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format: 'maxptime:%d'
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},
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{ //a=sendrecv
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name: 'direction',
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reg: /^(sendrecv|recvonly|sendonly|inactive)/
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},
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{ //a=ice-lite
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name: 'icelite',
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reg: /^(ice-lite)/
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},
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{ //a=ice-ufrag:F7gI
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name: 'iceUfrag',
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reg: /^ice-ufrag:(\S*)/,
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format: 'ice-ufrag:%s'
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},
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{ //a=ice-pwd:x9cml/YzichV2+XlhiMu8g
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name: 'icePwd',
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reg: /^ice-pwd:(\S*)/,
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format: 'ice-pwd:%s'
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},
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{ //a=fingerprint:SHA-1 00:11:22:33:44:55:66:77:88:99:AA:BB:CC:DD:EE:FF:00:11:22:33
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name: 'fingerprint',
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reg: /^fingerprint:(\S*) (\S*)/,
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names: ['type', 'hash'],
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format: 'fingerprint:%s %s'
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},
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{ //a=candidate:0 1 UDP 2113667327 203.0.113.1 54400 typ host
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//a=candidate:1162875081 1 udp 2113937151 192.168.34.75 60017 typ host generation 0 network-id 3 network-cost 10
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//a=candidate:3289912957 2 udp 1845501695 193.84.77.194 60017 typ srflx raddr 192.168.34.75 rport 60017 generation 0 network-id 3 network-cost 10
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//a=candidate:229815620 1 tcp 1518280447 192.168.150.19 60017 typ host tcptype active generation 0 network-id 3 network-cost 10
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//a=candidate:3289912957 2 tcp 1845501695 193.84.77.194 60017 typ srflx raddr 192.168.34.75 rport 60017 tcptype passive generation 0 network-id 3 network-cost 10
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push:'candidates',
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reg: /^candidate:(\S*) (\d*) (\S*) (\d*) (\S*) (\d*) typ (\S*)(?: raddr (\S*) rport (\d*))?(?: tcptype (\S*))?(?: generation (\d*))?(?: network-id (\d*))?(?: network-cost (\d*))?/,
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names: ['foundation', 'component', 'transport', 'priority', 'ip', 'port', 'type', 'raddr', 'rport', 'tcptype', 'generation', 'network-id', 'network-cost'],
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format: function (o) {
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var str = 'candidate:%s %d %s %d %s %d typ %s';
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str += (o.raddr != null) ? ' raddr %s rport %d' : '%v%v';
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// NB: candidate has three optional chunks, so %void middles one if it's missing
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str += (o.tcptype != null) ? ' tcptype %s' : '%v';
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if (o.generation != null) {
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str += ' generation %d';
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}
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str += (o['network-id'] != null) ? ' network-id %d' : '%v';
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str += (o['network-cost'] != null) ? ' network-cost %d' : '%v';
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return str;
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}
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},
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{ //a=end-of-candidates (keep after the candidates line for readability)
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name: 'endOfCandidates',
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reg: /^(end-of-candidates)/
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},
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{ //a=remote-candidates:1 203.0.113.1 54400 2 203.0.113.1 54401 ...
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name: 'remoteCandidates',
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reg: /^remote-candidates:(.*)/,
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format: 'remote-candidates:%s'
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},
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{ //a=ice-options:google-ice
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name: 'iceOptions',
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reg: /^ice-options:(\S*)/,
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format: 'ice-options:%s'
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},
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{ //a=ssrc:2566107569 cname:t9YU8M1UxTF8Y1A1
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push: 'ssrcs',
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reg: /^ssrc:(\d*) ([\w_-]*)(?::(.*))?/,
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names: ['id', 'attribute', 'value'],
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format: function (o) {
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var str = 'ssrc:%d';
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if (o.attribute != null) {
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str += ' %s';
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if (o.value != null) {
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str += ':%s';
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}
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}
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return str;
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}
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},
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{ //a=ssrc-group:FEC 1 2
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//a=ssrc-group:FEC-FR 3004364195 1080772241
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push: 'ssrcGroups',
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// token-char = %x21 / %x23-27 / %x2A-2B / %x2D-2E / %x30-39 / %x41-5A / %x5E-7E
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reg: /^ssrc-group:([\x21\x23\x24\x25\x26\x27\x2A\x2B\x2D\x2E\w]*) (.*)/,
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names: ['semantics', 'ssrcs'],
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format: 'ssrc-group:%s %s'
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},
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{ //a=msid-semantic: WMS Jvlam5X3SX1OP6pn20zWogvaKJz5Hjf9OnlV
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name: 'msidSemantic',
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reg: /^msid-semantic:\s?(\w*) (\S*)/,
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names: ['semantic', 'token'],
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format: 'msid-semantic: %s %s' // space after ':' is not accidental
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},
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{ //a=group:BUNDLE audio video
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push: 'groups',
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reg: /^group:(\w*) (.*)/,
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names: ['type', 'mids'],
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format: 'group:%s %s'
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},
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{ //a=rtcp-mux
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name: 'rtcpMux',
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reg: /^(rtcp-mux)/
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},
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{ //a=rtcp-rsize
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name: 'rtcpRsize',
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reg: /^(rtcp-rsize)/
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},
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{ //a=sctpmap:5000 webrtc-datachannel 1024
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name: 'sctpmap',
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reg: /^sctpmap:([\w_\/]*) (\S*)(?: (\S*))?/,
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names: ['sctpmapNumber', 'app', 'maxMessageSize'],
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format: function (o) {
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return (o.maxMessageSize != null) ?
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'sctpmap:%s %s %s' :
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'sctpmap:%s %s';
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}
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},
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{ //a=x-google-flag:conference
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name: 'xGoogleFlag',
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reg: /^x-google-flag:([^\s]*)/,
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format: 'x-google-flag:%s'
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},
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{ //a=rid:1 send max-width=1280;max-height=720;max-fps=30;depend=0
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push: 'rids',
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reg: /^rid:([\d\w]+) (\w+)(?: ([\S| ]*))?/,
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names: ['id', 'direction', 'params'],
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format: function (o) {
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return (o.params) ? 'rid:%s %s %s' : 'rid:%s %s';
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}
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},
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{ //a=imageattr:97 send [x=800,y=640,sar=1.1,q=0.6] [x=480,y=320] recv [x=330,y=250]
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//a=imageattr:* send [x=800,y=640] recv *
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//a=imageattr:100 recv [x=320,y=240]
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push: 'imageattrs',
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reg: new RegExp(
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//a=imageattr:97
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'^imageattr:(\\d+|\\*)' +
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//send [x=800,y=640,sar=1.1,q=0.6] [x=480,y=320]
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'[\\s\\t]+(send|recv)[\\s\\t]+(\\*|\\[\\S+\\](?:[\\s\\t]+\\[\\S+\\])*)' +
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//recv [x=330,y=250]
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'(?:[\\s\\t]+(recv|send)[\\s\\t]+(\\*|\\[\\S+\\](?:[\\s\\t]+\\[\\S+\\])*))?'
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),
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names: ['pt', 'dir1', 'attrs1', 'dir2', 'attrs2'],
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format: function (o) {
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return 'imageattr:%s %s %s' + (o.dir2 ? ' %s %s' : '');
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}
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},
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{ //a=simulcast:send 1,2,3;~4,~5 recv 6;~7,~8
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//a=simulcast:recv 1;4,5 send 6;7
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name: 'simulcast',
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reg: new RegExp(
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//a=simulcast:
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'^simulcast:' +
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//send 1,2,3;~4,~5
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'(send|recv) ([a-zA-Z0-9\\-_~;,]+)' +
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//space + recv 6;~7,~8
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'(?:\\s?(send|recv) ([a-zA-Z0-9\\-_~;,]+))?' +
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//end
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'$'
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),
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names: ['dir1', 'list1', 'dir2', 'list2'],
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format: function (o) {
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return 'simulcast:%s %s' + (o.dir2 ? ' %s %s' : '');
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}
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},
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{ //Old simulcast draft 03 (implemented by Firefox)
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// https://tools.ietf.org/html/draft-ietf-mmusic-sdp-simulcast-03
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//a=simulcast: recv pt=97;98 send pt=97
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//a=simulcast: send rid=5;6;7 paused=6,7
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name: 'simulcast_03',
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reg: /^simulcast:[\s\t]+([\S+\s\t]+)$/,
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names: ['value'],
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format: 'simulcast: %s'
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},
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{
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//a=framerate:25
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//a=framerate:29.97
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name: 'framerate',
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reg: /^framerate:(\d+(?:$|\.\d+))/,
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format: 'framerate:%s'
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},
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{ // RFC4570
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//a=source-filter: incl IN IP4 239.5.2.31 10.1.15.5
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name: 'sourceFilter',
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reg: /^source-filter: *(excl|incl) (\S*) (IP4|IP6|\*) (\S*) (.*)/,
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names: ['filterMode', 'netType', 'addressTypes', 'destAddress', 'srcList'],
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format: 'source-filter: %s %s %s %s %s'
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},
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{ // any a= that we don't understand is kepts verbatim on media.invalid
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push: 'invalid',
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names: ['value']
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}
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]
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};
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// set sensible defaults to avoid polluting the grammar with boring details
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Object.keys(grammar).forEach(function (key) {
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var objs = grammar[key];
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objs.forEach(function (obj) {
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if (!obj.reg) {
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obj.reg = /(.*)/;
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}
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if (!obj.format) {
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obj.format = '%s';
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}
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});
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});
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