@ngx-telly/plugin-hls/fesm2022/ngx-telly-plugin-hls.mjs.map

Telly - HLS plugin

{"version":3,"file":"ngx-telly-plugin-hls.mjs","sources":["../../../../libs/plugin-hls/src/lib/hls.directive.ts","../../../../libs/plugin-hls/src/ngx-telly-plugin-hls.ts"],"sourcesContent":["import {\n  AfterViewInit,\n  Directive,\n  EventEmitter,\n  inject,\n  input,\n  OnChanges,\n  OnDestroy,\n  Output,\n  SimpleChanges,\n} from '@angular/core';\nimport { PlayerComponent } from '@ngx-telly/player';\nimport Hls, {\n  AudioTrackSwitchedData,\n  ErrorData,\n  HlsConfig,\n  Level,\n  LevelSwitchedData,\n  LevelUpdatedData,\n  ManifestParsedData,\n  MediaAttachingData,\n  SubtitleTrackSwitchData,\n} from 'hls.js';\nimport { ScteTriggerData } from './types';\n\n@Directive({\n  selector: '[tellyHls]',\n  standalone: true,\n})\nexport class HlsDirective implements AfterViewInit, OnDestroy, OnChanges {\n  tellyHls = input.required<string>();\n  config = input<Partial<HlsConfig>>({});\n  scte = input<string>();\n\n  @Output() hlsCreated = new EventEmitter<Hls>();\n  @Output() mediaAttached = new EventEmitter<[Hls | undefined, MediaAttachingData]>();\n  @Output() manifestParsed = new EventEmitter<[Hls | undefined, ManifestParsedData]>();\n  @Output() levelUpdated = new EventEmitter<[Hls | undefined, LevelUpdatedData]>();\n  @Output() offsetParsed = new EventEmitter<[Hls | undefined, number, number]>();\n  @Output() audioSwitched = new EventEmitter<[Hls | undefined, AudioTrackSwitchedData]>();\n  @Output() levelSwitched = new EventEmitter<[Hls | undefined, LevelSwitchedData]>();\n  @Output() captionSwitched = new EventEmitter<[Hls | undefined, SubtitleTrackSwitchData]>();\n  @Output() scteParsed = new EventEmitter<[Hls | undefined, ScteTriggerData[]]>();\n  @Output() manifestFailed = new EventEmitter<[Hls | undefined, ErrorData]>();\n\n  player = inject(PlayerComponent);\n  // eventService = inject(TellyEventsService);\n  hls?: Hls;\n  offset = 0;\n  timestamp = 0;\n\n  ngAfterViewInit(): void {\n    if (!this.hls && this.tellyHls()) {\n      this.create(this.tellyHls());\n    }\n  }\n\n  ngOnChanges({ tellyHls }: SimpleChanges): void {\n    if (tellyHls && tellyHls.currentValue && !tellyHls.isFirstChange()) {\n      this.create(tellyHls.currentValue);\n    }\n  }\n\n  date() {\n    return new Date(this.timestamp + this.player.media.time * 1000);\n  }\n\n  private create(url: string): void {\n    if (!url) return;\n\n    if (Hls.isSupported()) {\n      if (this.hls) {\n        this.hls.destroy();\n      }\n\n      const config = this.config();\n\n      config.autoStartLoad ??= this.player.preload() === 'auto';\n      config.startPosition ??= this.player.startFrom();\n      config.xhrSetup ??= (xhr: XMLHttpRequest) => {\n        xhr.withCredentials = this.player.crossOrigin() === 'use-credentials';\n      };\n\n      this.hls = new Hls(config);\n      this.hlsCreated.emit(this.hls);\n\n      this.hls.loadSource(url);\n      this.hls.attachMedia(this.player.video.nativeElement);\n\n      this.bindEvents();\n    } else if (this.player.video.nativeElement.canPlayType('application/vnd.apple.mpegurl')) {\n      this.player.video.nativeElement.src = url;\n    }\n  }\n\n  private bindEvents(): void {\n    this.hls?.on(Hls.Events.MEDIA_ATTACHED, (_, data) => {\n      this.mediaAttached.emit([this.hls, data]);\n    });\n\n    this.hls?.on(Hls.Events.MANIFEST_PARSED, (_, data) => {\n      this.offset = 0;\n      this.timestamp = 0;\n      this.offsetParsed.emit([this.hls, this.offset, this.timestamp]);\n      this.manifestParsed.emit([this.hls, data]);\n    });\n\n    this.hls?.on(Hls.Events.LEVEL_UPDATED, (_, data) => {\n      this.levelUpdated.emit([this.hls, data]);\n      const level = this.hls?.levels[data.level];\n      if (level != null) {\n        this.extractDuration(level);\n        this.extractDrift(level);\n        this.extractOffset(level);\n\n        if (this.scte()) {\n          this.extractScte(level);\n        }\n      }\n    });\n\n    this.hls?.on(Hls.Events.LEVEL_SWITCHED, (_, data) => {\n      const level = this.hls?.levels[data.level];\n      if (level != null) this.extractDuration(level);\n      this.levelSwitched.emit([this.hls, data]);\n    });\n\n    this.hls?.on(Hls.Events.AUDIO_TRACK_SWITCHED, (_, data) => {\n      this.audioSwitched.emit([this.hls, data]);\n    });\n\n    this.hls?.on(Hls.Events.SUBTITLE_TRACK_SWITCH, (_, data) => {\n      this.captionSwitched.emit([this.hls, data]);\n    });\n\n    this.hls?.on(Hls.Events.ERROR, (_, data) => {\n      if (data.details === Hls.ErrorDetails.MANIFEST_LOAD_ERROR) {\n        this.manifestFailed.emit([this.hls, data]);\n      }\n    });\n  }\n\n  private extractDuration(lvl: Level) {\n    if (lvl.details?.totalduration != null && !isNaN(lvl.details.totalduration)) {\n      this.player.media.duration = lvl.details.totalduration;\n    }\n  }\n\n  private extractDrift(lvl: Level) {\n    this.player.media.drift = lvl.details?.fragments[0].start ?? this.player.media.drift;\n  }\n\n  private extractOffset(lvl: Level) {\n    if (!this.offset && lvl.details) {\n      this.timestamp = lvl.details?.fragments[0].programDateTime ?? 0;\n      this.offset = (this.timestamp / 1000) % 86400;\n      this.offsetParsed.emit([this.hls, this.offset, this.timestamp]);\n    }\n  }\n\n  private extractScte(lvl: Level) {\n    const frags = lvl.details?.fragments.filter((x) => x.tagList.some((x) => x[0].includes('CUE')));\n\n    if (!frags) return;\n\n    const parsed: ScteTriggerData[] = frags.map((f) => {\n      const tags = Object.fromEntries(f.tagList);\n\n      return {\n        timestamp: new Date(tags['PROGRAM-DATE-TIME']).getTime(),\n        cueIn: Object.keys(tags).includes('EXT-X-CUE-IN'),\n        cueOut: Object.keys(tags).includes('EXT-X-CUE-OUT'),\n        duration: tags['EXT-X-CUE-OUT'] != null ? +tags['EXT-X-CUE-OUT'] : undefined,\n        data: tags[this.scte() as string],\n        dateTime: tags['PROGRAM-DATE-TIME'],\n      } as ScteTriggerData;\n    });\n\n    this.scteParsed.emit([this.hls, parsed]);\n  }\n\n  ngOnDestroy(): void {\n    this.hls?.destroy();\n  }\n}\n","/**\n * Generated bundle index. 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