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Testing video media type
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advplyr
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27 changed files with 1124 additions and 92 deletions
311
client/players/LocalAudioPlayer.js
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311
client/players/LocalAudioPlayer.js
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import Hls from 'hls.js'
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import EventEmitter from 'events'
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export default class LocalAudioPlayer extends EventEmitter {
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constructor(ctx) {
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super()
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this.ctx = ctx
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this.player = null
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this.libraryItem = null
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this.audioTracks = []
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this.currentTrackIndex = 0
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this.isHlsTranscode = null
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this.hlsInstance = null
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this.usingNativeplayer = false
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this.startTime = 0
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this.trackStartTime = 0
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this.playWhenReady = false
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this.defaultPlaybackRate = 1
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this.playableMimeTypes = []
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this.initialize()
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}
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get currentTrack() {
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return this.audioTracks[this.currentTrackIndex] || {}
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}
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initialize() {
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if (document.getElementById('audio-player')) {
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document.getElementById('audio-player').remove()
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}
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var audioEl = document.createElement('audio')
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audioEl.id = 'audio-player'
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audioEl.style.display = 'none'
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document.body.appendChild(audioEl)
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this.player = audioEl
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this.player.addEventListener('play', this.evtPlay.bind(this))
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this.player.addEventListener('pause', this.evtPause.bind(this))
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this.player.addEventListener('progress', this.evtProgress.bind(this))
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this.player.addEventListener('ended', this.evtEnded.bind(this))
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this.player.addEventListener('error', this.evtError.bind(this))
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this.player.addEventListener('loadedmetadata', this.evtLoadedMetadata.bind(this))
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this.player.addEventListener('timeupdate', this.evtTimeupdate.bind(this))
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var mimeTypes = ['audio/flac', 'audio/mpeg', 'audio/mp4', 'audio/ogg', 'audio/aac', 'audio/x-ms-wma', 'audio/x-aiff']
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var mimeTypeCanPlayMap = {}
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mimeTypes.forEach((mt) => {
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var canPlay = this.player.canPlayType(mt)
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mimeTypeCanPlayMap[mt] = canPlay
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if (canPlay) this.playableMimeTypes.push(mt)
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})
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console.log(`[LocalPlayer] Supported mime types`, mimeTypeCanPlayMap, this.playableMimeTypes)
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}
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evtPlay() {
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this.emit('stateChange', 'PLAYING')
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}
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evtPause() {
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this.emit('stateChange', 'PAUSED')
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}
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evtProgress() {
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var lastBufferTime = this.getLastBufferedTime()
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this.emit('buffertimeUpdate', lastBufferTime)
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}
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evtEnded() {
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if (this.currentTrackIndex < this.audioTracks.length - 1) {
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console.log(`[LocalPlayer] Track ended - loading next track ${this.currentTrackIndex + 1}`)
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// Has next track
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this.currentTrackIndex++
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this.playWhenReady = true
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this.startTime = this.currentTrack.startOffset
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this.loadCurrentTrack()
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} else {
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console.log(`[LocalPlayer] Ended`)
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this.emit('finished')
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}
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}
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evtError(error) {
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console.error('Player error', error)
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this.emit('error', error)
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}
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evtLoadedMetadata(data) {
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if (!this.isHlsTranscode) {
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this.player.currentTime = this.trackStartTime
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}
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this.emit('stateChange', 'LOADED')
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if (this.playWhenReady) {
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this.playWhenReady = false
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this.play()
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}
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}
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evtTimeupdate() {
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if (this.player.paused) {
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this.emit('timeupdate', this.getCurrentTime())
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}
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}
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destroy() {
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this.destroyHlsInstance()
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if (this.player) {
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this.player.remove()
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}
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}
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set(libraryItem, tracks, isHlsTranscode, startTime, playWhenReady = false) {
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this.libraryItem = libraryItem
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this.audioTracks = tracks
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this.isHlsTranscode = isHlsTranscode
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this.playWhenReady = playWhenReady
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this.startTime = startTime
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if (this.hlsInstance) {
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this.destroyHlsInstance()
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}
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if (this.isHlsTranscode) {
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this.setHlsStream()
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} else {
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this.setDirectPlay()
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}
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}
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setHlsStream() {
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this.trackStartTime = 0
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// iOS does not support Media Elements but allows for HLS in the native audio player
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if (!Hls.isSupported()) {
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console.warn('HLS is not supported - fallback to using audio element')
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this.usingNativeplayer = true
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this.player.src = this.currentTrack.relativeContentUrl
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this.player.currentTime = this.startTime
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return
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}
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var hlsOptions = {
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startPosition: this.startTime || -1
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// No longer needed because token is put in a query string
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// xhrSetup: (xhr) => {
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// xhr.setRequestHeader('Authorization', `Bearer ${this.token}`)
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// }
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}
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this.hlsInstance = new Hls(hlsOptions)
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this.hlsInstance.attachMedia(this.player)
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this.hlsInstance.on(Hls.Events.MEDIA_ATTACHED, () => {
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this.hlsInstance.loadSource(this.currentTrack.relativeContentUrl)
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this.hlsInstance.on(Hls.Events.MANIFEST_PARSED, () => {
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console.log('[HLS] Manifest Parsed')
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})
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this.hlsInstance.on(Hls.Events.ERROR, (e, data) => {
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console.error('[HLS] Error', data.type, data.details, data)
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if (data.details === Hls.ErrorDetails.BUFFER_STALLED_ERROR) {
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console.error('[HLS] BUFFER STALLED ERROR')
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}
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})
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this.hlsInstance.on(Hls.Events.DESTROYING, () => {
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console.log('[HLS] Destroying HLS Instance')
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})
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})
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}
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setDirectPlay() {
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// Set initial track and track time offset
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var trackIndex = this.audioTracks.findIndex(t => this.startTime >= t.startOffset && this.startTime < (t.startOffset + t.duration))
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this.currentTrackIndex = trackIndex >= 0 ? trackIndex : 0
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this.loadCurrentTrack()
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}
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loadCurrentTrack() {
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if (!this.currentTrack) return
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// When direct play track is loaded current time needs to be set
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this.trackStartTime = Math.max(0, this.startTime - (this.currentTrack.startOffset || 0))
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this.player.src = this.currentTrack.relativeContentUrl
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console.log(`[LocalPlayer] Loading track src ${this.currentTrack.relativeContentUrl}`)
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this.player.load()
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}
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destroyHlsInstance() {
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if (!this.hlsInstance) return
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if (this.hlsInstance.destroy) {
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var temp = this.hlsInstance
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temp.destroy()
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}
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this.hlsInstance = null
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}
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async resetStream(startTime) {
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this.destroyHlsInstance()
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await new Promise((resolve) => setTimeout(resolve, 1000))
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this.set(this.libraryItem, this.audioTracks, this.isHlsTranscode, startTime, true)
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}
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playPause() {
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if (!this.player) return
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if (this.player.paused) this.play()
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else this.pause()
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}
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play() {
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if (this.player) this.player.play()
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}
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pause() {
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if (this.player) this.player.pause()
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}
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getCurrentTime() {
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var currentTrackOffset = this.currentTrack.startOffset || 0
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return this.player ? currentTrackOffset + this.player.currentTime : 0
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}
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getDuration() {
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if (!this.audioTracks.length) return 0
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var lastTrack = this.audioTracks[this.audioTracks.length - 1]
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return lastTrack.startOffset + lastTrack.duration
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}
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setPlaybackRate(playbackRate) {
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if (!this.player) return
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this.defaultPlaybackRate = playbackRate
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this.player.playbackRate = playbackRate
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}
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seek(time) {
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if (!this.player) return
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if (this.isHlsTranscode) {
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// Seeking HLS stream
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var offsetTime = time - (this.currentTrack.startOffset || 0)
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this.player.currentTime = Math.max(0, offsetTime)
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} else {
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// Seeking Direct play
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if (time < this.currentTrack.startOffset || time > this.currentTrack.startOffset + this.currentTrack.duration) {
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// Change Track
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var trackIndex = this.audioTracks.findIndex(t => time >= t.startOffset && time < (t.startOffset + t.duration))
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if (trackIndex >= 0) {
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this.startTime = time
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this.currentTrackIndex = trackIndex
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if (!this.player.paused) {
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// audio player playing so play when track loads
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this.playWhenReady = true
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}
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this.loadCurrentTrack()
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}
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} else {
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var offsetTime = time - (this.currentTrack.startOffset || 0)
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this.player.currentTime = Math.max(0, offsetTime)
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}
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}
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}
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setVolume(volume) {
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if (!this.player) return
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this.player.volume = volume
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}
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// Utils
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isValidDuration(duration) {
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if (duration && !isNaN(duration) && duration !== Number.POSITIVE_INFINITY && duration !== Number.NEGATIVE_INFINITY) {
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return true
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}
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return false
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}
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getBufferedRanges() {
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if (!this.player) return []
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const ranges = []
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const seekable = this.player.buffered || []
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let offset = 0
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for (let i = 0, length = seekable.length; i < length; i++) {
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let start = seekable.start(i)
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let end = seekable.end(i)
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if (!this.isValidDuration(start)) {
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start = 0
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}
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if (!this.isValidDuration(end)) {
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end = 0
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continue
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}
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ranges.push({
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start: start + offset,
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end: end + offset
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})
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}
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return ranges
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}
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getLastBufferedTime() {
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var bufferedRanges = this.getBufferedRanges()
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if (!bufferedRanges.length) return 0
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var buff = bufferedRanges.find((buff) => buff.start < this.player.currentTime && buff.end > this.player.currentTime)
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if (buff) return buff.end
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var last = bufferedRanges[bufferedRanges.length - 1]
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return last.end
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}
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}
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