wowza-webrtc-player/dist/umd/wowza-webrtc-player.js

A generic player to handle Wowza WebRTC api

/**
 * @license wowza-webrtc-player 1.1.0
 * Copyright (c) 2018-2024 Koala Interactive, Inc.
 * License: MIT
 */
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c{constructor(e){super(),i(this,"pc",void 0),this.pc=new w({iceServers:e}),"ontrack"in this.pc?this.pc.ontrack=this.handleTrackEvent.bind(this):this.pc.onaddstream=this.handleNewStreamEvent.bind(this)}getPeerConnection(){return this.pc}close(){this.pc.close()}setRemoteDescription(e){return this.pc.setRemoteDescription(new C(e))}setLocalDescription(e){return this.pc.setLocalDescription(new C(e))}createAnswer(){var e=this;return r((function*(){return e.pc.createAnswer()}))()}createOffer(){var e=this;return r((function*(){return e.pc.createOffer()}))()}attachIceCandidate(e){return this.pc.addIceCandidate(new b(e))}attachMediaStream(e){var t=this.pc,n=t.getSenders(),r=e.getTracks();n.length?r.forEach(e=>{n.filter(t=>{var n;return(null===(n=t.track)||void 0===n?void 0:n.kind)===e.kind}).forEach(t=>{t.replaceTrack(e)})}):r.forEach(n=>{t.addTrack(n,e)})}handleNewStreamEvent(e){var{stream:t}=e;this.emit("addstream",t)}handleTrackEvent(e){e.streams.forEach(e=>{this.emit("addstream",e)})}}class L{constructor(e,t,n){this.url=e,this.streamInfo=t,this.userData=n,i(this,"ws",null),i(this,"pendingCommands",new Map)}connect(){return this.ws?Promise.resolve(this.ws):new Promise((e,t)=>{var n=new WebSocket(this.url);n.binaryType="arraybuffer",n.onopen=()=>e(n),n.onerror=()=>t(),n.onclose=()=>t(),n.onmessage=this.handleSocketData.bind(this),this.ws=n})}disconnect(){this.ws&&(this.ws.close(),this.ws=null)}getOffer(){var e={direction:"play",command:"getOffer"};return this.streamInfo.secureToken&&(e.secureToken=this.streamInfo.secureToken),this.send(e)}sendOffer(e){return this.send({direction:"publish",command:"sendOffer",sdp:e})}sendResponse(e){return this.send({direction:"play",command:"sendResponse",sdp:e})}getAvailableStreams(){return this.send({direction:"play",command:"getAvailableStreams"})}send(e){var t=this;return r((function*(){var n,r=t.ws||(yield t.connect());return t.pendingCommands.has(e.command)||t.pendingCommands.set(e.command,((n={}).promise=new 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window)?"chrome":navigator.mediaDevices&&navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)?"edge":window.RTCPeerConnection&&navigator.userAgent.match(/AppleWebKit\/(\d+)\./)?"safari":"unknown",P=["opus","isac","g722","pcmu","pcma","cn"],_=["vp9","vp8","h264","red","ulpfec","rtx","av1"];class T{constructor(e,t){this.videoOptions=e,this.audioOptions=t}transformPlay(e){if(!e.sdp)return e;var n=t.parse(e.sdp);return n.media.forEach(e=>{e.fmtp.forEach(e=>{e.config=e.config.replace(/profile-level-id=(\w+)/gi,(e,t)=>{var n=parseInt(t,16),r=n>>16&255,i=n>>8&255,s=255&n;return r>66?(r=66,i=224,s=31):0===i&&(i=224),"profile-level-id=".concat((r<<16|i<<8|s).toString(16))})})}),e.sdp=t.write(n),e}transformPublish(e){if(!e.sdp)return e;var n=t.parse(e.sdp),r={audio:{config:this.audioOptions,supportedFormats:P},video:{config:this.videoOptions,supportedFormats:_}};return n.media.forEach(e=>{var t="video"===e.type?r.video:"audio"===e.type?r.audio:null;if(t){var n=t.config;n.bitRate&&["firefox","safari"].includes(O)&&(e.bandwidth=(e.bandwidth||[]).filter(e=>!["TIAS","AS","CT"].includes(e.type)).concat({type:"TIAS",limit:1e3*n.bitRate*.95-16e3},{type:"AS",limit:1e3*n.bitRate},{type:"CT",limit:1e3*n.bitRate})),"frameRate"in n&&(e.framerate=n.frameRate);for(var i=function(r){var i,o=e.rtp[r];if(!t.supportedFormats.includes(o.codec.toLowerCase()))return e.rtp.splice(r,1),e.fmtp=e.fmtp.filter(e=>e.payload!==o.payload),e.payloads=e.rtp.map(e=>e.payload).join(" "),e.rtcpFb=null===(i=e.rtcpFb)||void 0===i?void 0:i.filter(e=>e.payload!==o.payload),s=r,1;n.bitRate&&"chrome"===O&&e.fmtp.filter(e=>e.payload===o.payload).forEach(e=>{e.config=e.config.replace(/;?x-google-(min|max)-bitrate=(\d+)/g,""),e.config+=";x-google-min-bitrate=".concat(n.bitRate,";x-google-max-bitrate=").concat(n.bitRate)}),r++,s=r},s=0;s<e.rtp.length;)i(s)}}),e.sdp=t.write(n),e}}e.WowzaWebRTCPlayer=class extends c{constructor(e,t){super(),this.video=e,i(this,"sdpUrl",""),i(this,"applicationName",""),i(this,"streamName",""),i(this,"userData",null),i(this,"sdpHandler",void 0),i(this,"secureToken",void 0),i(this,"constraints",{audio:!0,video:!0}),i(this,"videoConfigs",{bitRate:360,codec:"42e01f",frameRate:29.97}),i(this,"audioConfigs",{codec:"opus",bitRate:64}),i(this,"iceServers",[]),i(this,"mediaStream",null),i(this,"pc",null),t&&this.setConfigurations(t)}setConfigurations(e){e.constraints&&(this.constraints=e.constraints),e.videoConfigs&&(this.videoConfigs=e.videoConfigs),e.audioConfigs&&(this.audioConfigs=e.audioConfigs),e.applicationName&&(this.applicationName=e.applicationName),e.streamName&&(this.streamName=e.streamName),e.sdpUrl&&(this.sdpUrl=e.sdpUrl),void 0!==e.userData&&(this.userData=e.userData),e.iceServers&&(this.iceServers=e.iceServers),e.sdpHandler&&(this.sdpHandler=e.sdpHandler),e.secureToken&&(this.secureToken=e.secureToken)}stop(){this.pc&&(this.pc.close(),this.pc=null)}getMediaStream(){return this.mediaStream}getPeerConnection(){return this.pc?this.pc.getPeerConnection():null}playLocal(e){var t=this;return r((function*(){e&&(t.constraints=e);var n=yield function(e){var t;return null!==(t=navigator.mediaDevices)&&void 0!==t&&t.getUserMedia?navigator.mediaDevices.getUserMedia(e):"getUserMedia"in navigator?new Promise((t,n)=>{navigator.getUserMedia(e,t,n)}):Promise.reject("Your browser does not support getUserMedia API")}(t.constraints);return t.attachStream(n),n}))()}stopLocal(){this.stop(),this.mediaStream&&(this.mediaStream.getTracks().forEach(e=>{e.stop()}),this.mediaStream=null)}playRemote(e){var t=this;return r((function*(){e&&t.setConfigurations(e);var n=t.createWowzaInstance();try{var{sdp:r}=yield n.getOffer(),i=t.createPeerConnection();i.on("addstream",t.attachStream.bind(t)),yield i.setRemoteDescription(r);var s=yield i.createAnswer(),o=new T(t.videoConfigs,t.audioConfigs),a=t.sdpHandler?t.sdpHandler(s,e=>o.transformPlay(e),"play"):o.transformPlay(s);yield i.setLocalDescription(a);var{iceCandidates:c}=yield n.sendResponse(a);c.forEach(e=>{i.attachIceCandidate(e)})}finally{n.disconnect()}}))()}publish(e){var t=this;return r((function*(){e&&t.setConfigurations(e);var n=t.createWowzaInstance();try{var r=t.mediaStream||(yield t.playLocal()),i=t.createPeerConnection();i.attachMediaStream(r);var s=new T(t.videoConfigs,t.audioConfigs),o=yield i.createOffer(),a=t.sdpHandler?t.sdpHandler(o,e=>s.transformPublish(e),"publish"):s.transformPublish(o);yield i.setLocalDescription(a);var{sdp:c,iceCandidates:d}=yield n.sendOffer(a);yield i.setRemoteDescription(c),d.forEach(e=>{i.attachIceCandidate(e)})}finally{n.disconnect()}}))()}getAvailableStreams(){var e=this;return r((function*(){var t=e.createWowzaInstance();try{var{availableStreams:n}=yield t.getAvailableStreams();return n||[]}catch(e){return[]}finally{t.disconnect()}}))()}createWowzaInstance(){return new L(this.sdpUrl,{applicationName:this.applicationName,sessionId:"[empty]",streamName:this.streamName,secureToken:this.secureToken},this.userData)}createPeerConnection(){return this.pc=new S(this.iceServers),this.pc}attachStream(e){this.mediaStream=e;try{var t=this.video.srcObject instanceof MediaStream&&this.video.srcObject;t&&t.id===e.id||(this.video.srcObject=e)}catch(t){this.video.src=window.URL.createObjectURL(e)}this.pc&&this.pc.attachMediaStream(e),this.video.play()}},Object.defineProperty(e,"__esModule",{value:!0})},"object"==typeof exports&&"undefined"!=typeof module?t(exports,require("sdp-transform")):"function"==typeof define&&define.amd?define(["exports","sdp-transform"],t):t((e=e||self)["wowza-webrtc-player"]={},e.sdpTransform);