@ngx-telly/plugin-wowza-webrtc/fesm2022/ngx-telly-plugin-wowza-webrtc.mjs.map

Telly - HLS plugin

{"version":3,"file":"ngx-telly-plugin-wowza-webrtc.mjs","sources":["../../../../libs/plugin-wowza-webrtc/src/lib/munge.ts","../../../../libs/plugin-wowza-webrtc/src/lib/wowza-connector.ts","../../../../libs/plugin-wowza-webrtc/src/lib/wowza.directive.ts","../../../../libs/plugin-wowza-webrtc/src/ngx-telly-plugin-wowza-webrtc.ts"],"sourcesContent":["/*\n * This code and all components (c) Copyright 2019-2020, Wowza Media Systems, LLC. All rights reserved.\n * This code is licensed pursuant to the BSD 3-Clause License.\n */\n\nexport function mungeSDPPlay(sdpStr: string) {\n  // For greatest playback compatibility,\n  // force H.264 playback to constrained baseline (42e01f).\n\n  const sdpLines = sdpStr.split(/\\r\\n/);\n  let sdpStrRet = '';\n\n  for (const sdpIndex in sdpLines) {\n    let sdpLine = sdpLines[sdpIndex];\n\n    if (sdpLine.length == 0) continue;\n\n    if (sdpLine.includes('profile-level-id')) {\n      // The profile-level-id string has three parts: XXYYZZ, where\n      //   XX: 42 baseline, 4D main, 64 high\n      //   YY: constraint\n      //   ZZ: level ID\n      // Look for codecs higher than baseline and force downward.\n      const profileLevelId = sdpLine.substr(sdpLine.indexOf('profile-level-id') + 17, 6);\n      let profile = Number('0x' + profileLevelId.substr(0, 2));\n      let constraint = Number('0x' + profileLevelId.substr(2, 2));\n      let level = Number('0x' + profileLevelId.substr(4, 2));\n      if (profile > 0x42) {\n        profile = 0x42;\n        constraint = 0xe0;\n        level = 0x1f;\n      }\n      if (constraint == 0x00) {\n        constraint = 0xe0;\n      }\n      const newProfileLevelId =\n          ('00' + profile.toString(16)).slice(-2).toLowerCase() +\n          ('00' + constraint.toString(16)).slice(-2).toLowerCase() +\n          ('00' + level.toString(16)).slice(-2).toLowerCase();\n\n      sdpLine = sdpLine.replace(profileLevelId, newProfileLevelId);\n    }\n\n    sdpStrRet += sdpLine;\n    sdpStrRet += '\\r\\n';\n  }\n\n  return sdpStrRet;\n}\n","import { mungeSDPPlay } from './munge';\nimport { WowzaConnectionConfig } from './wowza-conn-config';\n\nexport class WowzaConnector {\n  wsConnection?: WebSocket;\n  peerConnection?: RTCPeerConnection;\n  config: WowzaConnectionConfig;\n\n  constructor(config: WowzaConnectionConfig) {\n    this.config = config;\n  }\n\n  start() {\n    if (!this.peerConnection) {\n      this.wsConnect(this.config.sdpUrl);\n    }\n  }\n\n  stop() {\n    if (this.peerConnection) {\n      this.peerConnection.close();\n      this.peerConnection = undefined;\n    }\n\n    if (this.wsConnection) {\n      this.wsConnection.close();\n      this.wsConnection = undefined;\n    }\n\n    if (this.config.videoEl) {\n      this.config.videoEl.src = '';\n    }\n  }\n\n  wsConnect(url: string): void {\n    this.wsConnection = new WebSocket(url);\n    this.wsConnection.binaryType = 'arraybuffer';\n    this.wsConnection.onopen = this.onWsConnected;\n    this.wsConnection.onmessage = this.onMsgRcv;\n    this.wsConnection.onclose = this.onClose;\n    this.wsConnection.onerror = this.onError;\n  }\n\n  wsSend(command: string, ext: any = {}): void {\n    const cmd = {\n      direction: 'play',\n      command: command,\n      streamInfo: this.config.streamInfo,\n      userData: this.config.userData,\n      ...ext,\n    };\n\n    if (this.config.secureToken != null) {\n      cmd.secureToken = this.config.secureToken;\n    }\n\n    this.wsConnection?.send(JSON.stringify(cmd));\n  }\n\n  onIceCandidateRcv = (ev: RTCPeerConnectionIceEvent): void => {\n    console.log('[ ICE ]', ev.candidate);\n  };\n\n  onDescriptionRcv = (desc: RTCSessionDescriptionInit): void => {\n    this.peerConnection\n      ?.setLocalDescription(desc)\n      .then(() => {\n        this.wsSend('sendResponse', { sdp: desc });\n      })\n      .catch((err) => {\n        console.log('[WEB RTC] Setting local RTCSessionDescriptionInit failed', err);\n      });\n  };\n\n  onTrackRcv = (ev: RTCTrackEvent): void => {\n    try {\n      this.config.videoEl.srcObject = ev.streams[0];\n      this.config.videoEl.onerror = this.onVideoError;\n    } catch {\n      console.log('[WEB RTC] Cannot bind srcObject to video element. Sources: ', ev.streams);\n    }\n  };\n\n  onVideoError = (ev: string | Event): void => {\n    if (typeof ev === 'string') return;\n\n    const videoEl = ev.target as HTMLVideoElement;\n    const error = videoEl.error;\n\n    if (error) {\n      const errorMsg = `[VIDEO PLAYBACK ERROR] Code: ${error.code}, Message: ${error.message}`;\n      console.error(errorMsg, error);\n      this.config?.errorCallback?.(ev);\n    }\n  };\n\n  onMsgRcv = (ev: MessageEvent): void => {\n    const msg = JSON.parse(ev.data);\n    const status = +msg['status'];\n    const command = msg['command'];\n\n    switch (status) {\n      case 200: {\n        console.log('[WOWZA] Success response');\n        if (msg['streamInfo']) {\n          const streamInfo = msg['streamInfo'];\n          this.config.streamInfo.sessionId = streamInfo.sessionId;\n        }\n\n        if (msg['sdp']) {\n          msg.sdp.sdp = mungeSDPPlay(msg.sdp.sdp);\n\n          this.peerConnection?.setRemoteDescription(new RTCSessionDescription(msg.sdp)).then(() => {\n            this.peerConnection?.createAnswer().then((d) => this.onDescriptionRcv(d));\n          });\n        }\n\n        if (msg['iceCandidates'] && msg['iceCandidates'].length) {\n          msg['iceCandidates'].forEach((x: RTCIceCandidateInit) => {\n            this.peerConnection?.addIceCandidate(new RTCIceCandidate(x));\n          });\n        }\n\n        if ('sendResponse'.localeCompare(command) == 0) {\n          this.wsConnection?.close();\n          this.wsConnection = undefined;\n        }\n\n        if ('getAvailableStreams'.localeCompare(command) == 0) {\n          this.stop();\n        }\n        break;\n      }\n      case 403: {\n        const errorMsg = '[WOWZA ERROR] 403 Forbidden - Access denied or authentication failed';\n        console.error(errorMsg, msg);\n        this.config?.errorCallback?.(ev);\n        this.stop();\n        break;\n      }\n      case 404: {\n        const errorMsg = '[WOWZA ERROR] 404 Not Found - Stream or resource not found';\n        console.error(errorMsg, msg);\n        this.config?.errorCallback?.(ev);\n        this.stop();\n        break;\n      }\n      case 507: {\n        const errorMsg = '[WOWZA ERROR] 507 WebRTC session not found';\n        console.error(errorMsg, msg);\n        this.config?.errorCallback?.(ev);\n        this.stop();\n        break;\n      }\n      case 514: {\n        console.warn('[WOWZA] 514 Stream not ready, retrying...');\n        let retries = 0;\n\n        if (retries < 10) {\n          setTimeout(() => {\n            this.wsSend('getOffer');\n            retries++;\n          }, 500);\n        } else {\n          const errorMsg = '[WOWZA ERROR] 514 Max retries exceeded - Stream unavailable';\n          console.error(errorMsg);\n          this.config?.errorCallback?.(ev);\n          this.stop();\n        }\n        break;\n      }\n      default: {\n        const errorMsg = `[WOWZA ERROR] Unexpected status code: ${status}`;\n        console.error(errorMsg, msg);\n        this.config?.errorCallback?.(ev);\n        this.stop();\n        break;\n      }\n    }\n  };\n\n  onStateChanged = (ev: Event): void => {\n    const state = this.peerConnection?.connectionState;\n    console.log('[WEB RTC] Connection state changed to:', state);\n\n    if (state === 'failed' || state === 'disconnected') {\n      console.error('[WEB RTC] Connection failed/disconnected. ICE state:', this.peerConnection?.iceConnectionState);\n      this.config?.errorCallback?.(ev);\n    }\n\n    this.config?.stateCallback?.(ev);\n  };\n\n  onError = (ev: Event): void => {\n    this.config?.errorCallback?.(ev);\n  };\n\n  onClose = (ev: Event): void => {\n    this.config?.closeCallback?.(ev);\n  };\n\n  onWsConnected = (): void => {\n    this.peerConnection = new RTCPeerConnection();\n    this.peerConnection.onicecandidate = this.onIceCandidateRcv;\n    this.peerConnection.ontrack = this.onTrackRcv;\n    this.peerConnection.onconnectionstatechange = this.onStateChanged;\n\n    this.wsSend('getOffer');\n  };\n}\n","import { Directive, EventEmitter, inject, Input, OnChanges, OnDestroy, Output, SimpleChanges } from '@angular/core';\nimport { PlayerComponent } from '@ngx-telly/player';\nimport { WowzaConnectionConfig } from './wowza-conn-config';\nimport { WowzaConnector } from './wowza-connector';\nimport { WowzaSecureToken } from './wowza-secure-token';\n\n@Directive({\n  selector: '[tellyWowza]',\n  standalone: true,\n})\nexport class WowzaDirective implements OnChanges, OnDestroy {\n  @Input({ required: true }) tellyWowza?: string;\n  @Input() streamName?: string;\n  @Input() appName?: string;\n  @Input() sessionId = '[empty]';\n  @Input() token?: WowzaSecureToken;\n\n  @Output() wowzaStateCallback = new EventEmitter<Event>();\n  @Output() wowzaCloseCallback = new EventEmitter<Event>();\n  @Output() wowzaErrorCallback = new EventEmitter<Event>();\n\n  wowza?: WowzaConnector;\n  player = inject(PlayerComponent);\n\n  ngOnChanges(changes: SimpleChanges): void {\n    if (changes['tellyWowza']?.currentValue || changes['streamName']?.currentValue) {\n      this.create();\n    }\n  }\n\n  create(): void {\n    if (!this.tellyWowza || !this.streamName || !this.appName) {\n      return;\n    }\n\n    if (this.wowza) {\n      this.destroy();\n    }\n\n    const config: WowzaConnectionConfig = {\n      sdpUrl: this.tellyWowza,\n      videoEl: this.player.video.nativeElement,\n      streamInfo: {\n        applicationName: this.appName,\n        streamName: this.streamName,\n        sessionId: this.sessionId,\n      },\n      stateCallback: (e) => this.wowzaStateCallback.emit(e),\n      closeCallback: (e) => this.wowzaCloseCallback.emit(e),\n      errorCallback: (e) => this.wowzaErrorCallback.emit(e),\n    };\n\n    if (this.token != null) {\n      config.secureToken = this.token;\n    }\n\n    this.wowza = new WowzaConnector(config);\n    this.wowza.start();\n  }\n\n  destroy(): void {\n    this.player.video.nativeElement.srcObject = null;\n    this.wowza?.stop();\n    this.wowza = undefined;\n  }\n\n  ngOnDestroy(): void {\n    this.destroy();\n  }\n}\n","/**\n * Generated bundle index. 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