Module 400976

function(e,t,n){"use strict";n.d(t,{$k:()=>C,AK:()=>v,An:()=>R,HO:()=>E,IJ:()=>O,aC:()=>y,u6:()=>A,v5:()=>b}),n(321073),n(775443);var r=n(267721),i=n.n(r),s=n(128080),a=n.n(s),o=n(909203),l=n.n(o),u=n(214958),c=n.n(u),d=n(316179),_=n(118356),f=n(731854),p=n(396574);let h=4,m=new _.Vy("SDP");var E=function(e){return e.SENDRECV="sendrecv",e.SENDONLY="sendonly",e.RECVONLY="recvonly",e.INACTIVE="inactive",e}({});let g="UDP/TLS/RTP/SAVPF";function A(e){switch(e){case"recvonly":return"sendonly";case"sendonly":return"recvonly";case"sendrecv":return"sendrecv";default:return"inactive"}}function I(e,t,n){let r=`${e}-${t}`,i=`${n}${r}`;return[{attribute:"cname",id:t,value:r},{attribute:"msid",id:t,value:`${r} ${i}`},{attribute:"mslabel",id:t,value:r},{attribute:"label",id:t,value:i}]}function T(e){return d.write({version:0,timing:{start:0,stop:0},origin:{address:"127.0.0.1",ipVer:4,netType:"IN",sessionId:"1420070400000",sessionVersion:0,username:"-"},name:"-",msidSemantic:{semantic:"WMS",token:"*"},groups:[{type:"BUNDLE",mids:e.filter(e=>null!=e.mid).map(e=>e.mid).join(" ")}],media:e})}function S(e){let{mid:t,type:n,setup:r,direction:s,baseSDP:a,codec:o,payload:l,bitrate:u,ssrcs:_,extensions:m,rtxPayload:E,sendingVideo:A,enableAudioNack:I}=e;if("inactive"===s&&!p.PF)return{connection:{ip:"0.0.0.0",version:4},direction:"inactive",fmtp:[],payloads:l,port:0,protocol:g,rtp:[{codec:"NULL",payload:l,rate:0}],mid:void 0,type:n};let{media:[T]}=d.parse(a);if(T.type=n,T.protocol=g,T.payloads=l,T.setup=r,T.mid=t,T.rtcpMux="rtcp-mux",T.direction=s,T.ssrcs=_,_.length>0&&(null!=E&&(T.ssrcGroups=i()(_,h).map(e=>{let t=e[0].id;return{semantics:"FID",ssrcs:`${t} ${t+1}`}}),T.ssrcs=i()(_,h).map(e=>{let t=e.map(e=>(e={...e},e.id+=1,e));return[...e,...t]}).flat()),p.PF||"Firefox"===c().name)){let e=_.find(e=>"msid"===e.attribute);if(null==e)throw Error("msid missing");T.msid=e.value,T.ssrcs=T.ssrcs.filter(e=>"cname"===e.attribute)}switch(n){case"audio":"Firefox"===c().name?T.ext=m.filter(e=>"urn:ietf:params:rtp-hdrext:ssrc-audio-level"===e.uri):(T.ext=m.filter(e=>"urn:ietf:params:rtp-hdrext:ssrc-audio-level"===e.uri||"http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01"===e.uri),T.rtcpFb=[{type:"transport-cc",payload:l}],!0===I&&T.rtcpFb?.push({type:"nack",payload:l})),T.rtp.push({codec:o,encoding:2,payload:l,rate:48e3}),o===f.UK.OPUS&&T.fmtp.push({config:`minptime=10;useinbandfec=1;usedtx=${A?"0":"1"}`,payload:l}),T.maxptime=60;break;case"video":T.ext=m.filter(e=>"urn:ietf:params:rtp-hdrext:toffset"===e.uri||"http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time"===e.uri||"urn:3gpp:video-orientation"===e.uri||"http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01"===e.uri||"http://www.webrtc.org/experiments/rtp-hdrext/playout-delay"===e.uri),T.rtp.push({codec:o,payload:l,rate:9e4});let S=`x-google-max-bitrate=${u}`;o===f.UK.H264?S+=";level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f":o===f.UK.H265&&(S+=";level-id=180;profile-id=1;tier-flag=0;tx-mode=SRST"),T.fmtp.push({config:S,payload:l}),T.rtcpFb=[{type:"ccm",subtype:"fir",payload:l},{type:"nack",payload:l},{type:"nack",subtype:"pli",payload:l},{type:"goog-remb",payload:l},{type:"transport-cc",payload:l}],null!=E&&(T.rtp.push({codec:"rtx",payload:E,rate:9e4}),T.fmtp.push({config:`apt=${l}`,payload:E}),T.payloads=`${T.payloads} ${E}`)}return T}function y(e){let{type:t,baseSDP:n,direction:r,audioCodec:i,audioPayloadType:s,audioBitRate:a,videoCodec:o,videoPayloadType:l,videoBitRate:u,rtxPayloadType:d,ssrcs:_,extensions:f}=e,p=[];if(m.info(`generateSessionDescription: ${JSON.stringify(_)}`),"Firefox"===c().name){let e="answer"===t?"passive":"active";_.forEach(t=>{let[r,c,_,h,m]=t;if("video"===_&&(0===l||0===d))return;let E="audio"===_?i:o,g="audio"===_?s:l,A="audio"===_?a:u;p.push(S({mid:m,type:_,setup:e,direction:h,baseSDP:n,codec:E,payload:g,bitrate:A,ssrcs:I(c,r,"audio"===_?"a":"v"),extensions:f}))})}else{let e="answer"===t?"passive":"actpass",c=_.filter(e=>{let[t,n,r,i,s]=e;return"inactive"!==i&&"audio"===r}).map(e=>{let[t,n]=e;return I(n,t,"a")});if(p.push(S({mid:"audio",type:"audio",setup:e,direction:r,baseSDP:n,codec:i,payload:s,bitrate:a,ssrcs:c.flat(),extensions:f})),l>0){let t=_.filter(e=>{let[t,n,r,i,s]=e;return"inactive"!==i&&"video"===r}).map(e=>{let[t,n]=e;return I(n,t,"v")});p.push(S({mid:"video",type:"video",setup:e,direction:r,baseSDP:n,codec:o,payload:l,bitrate:u,ssrcs:t.flat(),extensions:f,rtxPayload:d}))}}return new RTCSessionDescription({type:t,sdp:T(p)})}function v(e){let{type:t,baseSDP:n,audioCodec:r,audioPayloadType:i,audioBitRate:s,videoCodec:a,videoPayloadType:o,videoBitRate:l,sendingVideo:u,rtxPayloadType:c,ssrcs:d,extensions:_,enableAudioNack:f}=e,p=[],h="answer"===t?"passive":"actpass";return d.forEach(e=>{let t,{ssrc:d,cname:m,type:E,direction:g,mid:A}=e;""!==m?t=I(m,d,"audio"===E?"a":"v"):(t=[],"sendonly"===g?g="inactive":"sendrecv"===g&&(g="recvonly"));let T="audio"===E?r:a,y="audio"===E?i:o,v="audio"===E?null:c,N="audio"===E?s:l;p.push(S({mid:A,type:E,setup:h,direction:g,baseSDP:n,codec:T,payload:y,bitrate:N,ssrcs:t,extensions:_,rtxPayload:v,sendingVideo:u,enableAudioNack:f}))}),new RTCSessionDescription({type:t,sdp:T(p)})}function N(e,t,n,r,i){let s=e.find(e=>e.codec===r);if(null==s)return null;let a=t.find(e=>RegExp(`^apt=${s.payload}`).test(e.config)),o=null;if(null!=a){let t=e.find(e=>e.codec===f.UK.RTX&&e.payload===a.payload);null!=t&&(o=t.payload)}return{type:n,name:r,priority:i+1,payloadType:s.payload,rtxPayloadType:o}}function C(e,t){let n=d.parse(e).media.reduce((e,n)=>{let r,{type:i,rtp:s,ssrcs:a,fmtp:o,direction:l,mid:u}=n;switch(e.outboundStreams.push({type:i,direction:l,mid:u}),i){case"audio":[f.UK.OPUS].forEach((t,n)=>{let r=N(s,o,i,t,n);null!=r&&e.codecs.push(r)}),"sendrecv"===l&&null!=(r=a?.find(e=>"cname"===e.attribute))&&(e.audioSSRC=r.id);break;case"video":(t?[f.UK.H265,f.UK.H264,f.UK.VP8,f.UK.VP9]:[f.UK.H264,f.UK.VP8,f.UK.VP9]).forEach((t,n)=>{let r=N(s,o,i,t,n);null!=r&&e.codecs.push(r)}),"sendrecv"===l&&(null!=(r=a?.find(e=>"cname"===e.attribute))&&(e.videoSSRC=r.id),null!=(r=a?.findLast(e=>"cname"===e.attribute))&&(r.id===e.videoSSRC&&m.warn("Unable to find a unique rtx SSRC!"),e.rtxSSRC=r.id))}return e},{outboundStreams:[],codecs:[],audioSSRC:0,videoSSRC:0,rtxSSRC:0});return n.codecs=l()(n.codecs,a()),n}function R(e,t){let{codecs:n}=C(e,t),r=n.find(e=>e.name===f.UK.VP8),i=RegExp(`^a=ice|a=extmap|a=fingerprint|opus|VP8|${r?.rtxPayloadType??0} rtx`,"i");return{sdp:[...new Set(e.split(/\r\n/).filter(e=>i.test(e)))].join("\n"),codecs:n}}function O(e){if(!e.includes("a=fingerprint"))return m.error("Remote SDP does not include fingerprint!"),!1;if(!e.includes("a=ice-ufrag"))return m.error("Remote SDP does not include ICE user name!"),!1;if(!e.includes("a=ice-pwd"))return m.error("Remote SDP does not include ICE password!"),!1;if(!e.includes("a=candidate"))return m.error("Remote SDP does not include ICE candidate!"),!1;if(!e.includes("c="))return m.error("Remote SDP does not include c-line!"),!1;let t=e.split("\n").filter(e=>e.startsWith("c=")).join().trim();return!(t.split(" ").length<3)||(m.error(`Incorrect c-line: ${t}`),!1)}function b(e){return[...new Set(e.split(/\r\n/).filter(e=>e.startsWith("a=extmap:")))].map(e=>{let t=e.split(" ");return{value:parseInt(t[0].split("/")[0].substr(9),10),uri:t[1]}})}}