mirror of https://github.com/Chocobozzz/PeerTube
				
				
				
			
		
			
				
	
	
		
			613 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			TypeScript
		
	
	
			
		
		
	
	
			613 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			TypeScript
		
	
	
import { pick, wait } from '@peertube/peertube-core-utils'
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import {
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  ffprobePromise,
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  getVideoStreamBitrate,
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  getVideoStreamDimensionsInfo,
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  getVideoStreamFPS,
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  hasAudioStream
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} from '@peertube/peertube-ffmpeg'
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import { LiveVideoError, LiveVideoErrorType, VideoState } from '@peertube/peertube-models'
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import { logger, loggerTagsFactory } from '@server/helpers/logger.js'
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import { CONFIG, registerConfigChangedHandler } from '@server/initializers/config.js'
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import { VIDEO_LIVE, WEBSERVER } from '@server/initializers/constants.js'
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import { sequelizeTypescript } from '@server/initializers/database.js'
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import { RunnerJobModel } from '@server/models/runner/runner-job.js'
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import { UserModel } from '@server/models/user/user.js'
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import { VideoLiveReplaySettingModel } from '@server/models/video/video-live-replay-setting.js'
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import { VideoLiveSessionModel } from '@server/models/video/video-live-session.js'
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import { VideoLiveModel } from '@server/models/video/video-live.js'
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import { VideoStreamingPlaylistModel } from '@server/models/video/video-streaming-playlist.js'
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import { VideoModel } from '@server/models/video/video.js'
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import { MUser, MVideo, MVideoLiveSession, MVideoLiveVideo, MVideoLiveVideoWithSetting } from '@server/types/models/index.js'
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import { readFile, readdir } from 'fs/promises'
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import { Server, createServer } from 'net'
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import context from 'node-media-server/src/node_core_ctx.js'
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import nodeMediaServerLogger from 'node-media-server/src/node_core_logger.js'
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import NodeRtmpSession from 'node-media-server/src/node_rtmp_session.js'
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import { join } from 'path'
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import { Server as ServerTLS, createServer as createServerTLS } from 'tls'
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import { federateVideoIfNeeded } from '../activitypub/videos/index.js'
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import { JobQueue } from '../job-queue/index.js'
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import { Notifier } from '../notifier/notifier.js'
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import { getLiveReplayBaseDirectory } from '../paths.js'
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import { PeerTubeSocket } from '../peertube-socket.js'
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import { Hooks } from '../plugins/hooks.js'
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import { computeResolutionsToTranscode } from '../transcoding/transcoding-resolutions.js'
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import { LiveQuotaStore } from './live-quota-store.js'
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import { cleanupAndDestroyPermanentLive, getLiveSegmentTime } from './live-utils.js'
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import { MuxingSession } from './shared/index.js'
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import { FfprobeData } from 'fluent-ffmpeg'
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// Disable node media server logs
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nodeMediaServerLogger.setLogType(0)
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const config = {
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  rtmp: {
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    port: CONFIG.LIVE.RTMP.PORT,
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    chunk_size: VIDEO_LIVE.RTMP.CHUNK_SIZE,
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    gop_cache: VIDEO_LIVE.RTMP.GOP_CACHE,
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    ping: VIDEO_LIVE.RTMP.PING,
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    ping_timeout: VIDEO_LIVE.RTMP.PING_TIMEOUT
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  }
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}
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const lTags = loggerTagsFactory('live')
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class LiveManager {
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  private static instance: LiveManager
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  private readonly muxingSessions = new Map<string, MuxingSession>()
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  private readonly videoSessions = new Map<string, string>()
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  private rtmpServer: Server
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  private rtmpsServer: ServerTLS
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  private running = false
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  private constructor () {
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  }
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  init () {
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    const events = this.getContext().nodeEvent
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    events.on('postPublish', (sessionId: string, streamPath: string) => {
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      logger.debug('RTMP received stream', { id: sessionId, streamPath, ...lTags(sessionId) })
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      const splittedPath = streamPath.split('/')
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      if (splittedPath.length !== 3 || splittedPath[1] !== VIDEO_LIVE.RTMP.BASE_PATH) {
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        logger.warn('Live path is incorrect.', { streamPath, ...lTags(sessionId) })
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        return this.abortSession(sessionId)
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      }
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      const session = this.getContext().sessions.get(sessionId)
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      const inputLocalUrl = session.inputOriginLocalUrl + streamPath
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      const inputPublicUrl = session.inputOriginPublicUrl + streamPath
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      this.handleSession({ sessionId, inputPublicUrl, inputLocalUrl, streamKey: splittedPath[2] })
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        .catch(err => logger.error('Cannot handle sessions.', { err, ...lTags(sessionId) }))
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    })
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    events.on('donePublish', (sessionId: string) => {
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      logger.info('Live session ended.', { sessionId, ...lTags(sessionId) })
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      // Force session aborting, so we kill ffmpeg even if it still has data to process (slow CPU)
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      setTimeout(() => this.abortSession(sessionId), 2000)
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    })
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    registerConfigChangedHandler(() => {
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      if (!this.running && CONFIG.LIVE.ENABLED === true) {
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        this.run().catch(err => logger.error('Cannot run live server.', { err }))
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        return
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      }
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      if (this.running && CONFIG.LIVE.ENABLED === false) {
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        this.stop()
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      }
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    })
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    // Cleanup broken lives, that were terminated by a server restart for example
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    this.handleBrokenLives()
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      .catch(err => logger.error('Cannot handle broken lives.', { err, ...lTags() }))
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  }
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  async run () {
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    this.running = true
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    if (CONFIG.LIVE.RTMP.ENABLED) {
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      logger.info('Running RTMP server on port %d', CONFIG.LIVE.RTMP.PORT, lTags())
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      this.rtmpServer = createServer(socket => {
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        const session = new NodeRtmpSession(config, socket)
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        session.inputOriginLocalUrl = 'rtmp://127.0.0.1:' + CONFIG.LIVE.RTMP.PORT
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        session.inputOriginPublicUrl = WEBSERVER.RTMP_URL
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        session.run()
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      })
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      this.rtmpServer.on('error', err => {
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        logger.error('Cannot run RTMP server.', { err, ...lTags() })
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      })
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      this.rtmpServer.listen(CONFIG.LIVE.RTMP.PORT, CONFIG.LIVE.RTMP.HOSTNAME)
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    }
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    if (CONFIG.LIVE.RTMPS.ENABLED) {
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      logger.info('Running RTMPS server on port %d', CONFIG.LIVE.RTMPS.PORT, lTags())
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      const [ key, cert ] = await Promise.all([
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        readFile(CONFIG.LIVE.RTMPS.KEY_FILE),
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        readFile(CONFIG.LIVE.RTMPS.CERT_FILE)
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      ])
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      const serverOptions = { key, cert }
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      this.rtmpsServer = createServerTLS(serverOptions, socket => {
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        const session = new NodeRtmpSession(config, socket)
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        session.inputOriginLocalUrl = 'rtmps://127.0.0.1:' + CONFIG.LIVE.RTMPS.PORT
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        session.inputOriginPublicUrl = WEBSERVER.RTMPS_URL
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        session.run()
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      })
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      this.rtmpsServer.on('error', err => {
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        logger.error('Cannot run RTMPS server.', { err, ...lTags() })
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      })
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      this.rtmpsServer.listen(CONFIG.LIVE.RTMPS.PORT, CONFIG.LIVE.RTMPS.HOSTNAME)
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    }
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  }
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  stop () {
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    this.running = false
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    if (this.rtmpServer) {
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      logger.info('Stopping RTMP server.', lTags())
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      this.rtmpServer.close()
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      this.rtmpServer = undefined
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    }
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    if (this.rtmpsServer) {
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      logger.info('Stopping RTMPS server.', lTags())
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      this.rtmpsServer.close()
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      this.rtmpsServer = undefined
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    }
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    // Sessions is an object
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    this.getContext().sessions.forEach((session: any) => {
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      if (session instanceof NodeRtmpSession) {
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        session.stop()
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      }
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    })
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  }
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  isRunning () {
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    return !!this.rtmpServer
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  }
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  hasSession (sessionId: string) {
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    return this.getContext().sessions.has(sessionId)
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  }
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  stopSessionOfVideo (options: {
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    videoUUID: string
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    error: LiveVideoErrorType | null
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    expectedSessionId?: string // Prevent stopping another session of permanent live
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    errorOnReplay?: boolean
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  }) {
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    const { videoUUID, expectedSessionId, error } = options
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    const sessionId = this.videoSessions.get(videoUUID)
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    if (!sessionId) {
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      logger.debug('No live session to stop for video %s', videoUUID, lTags(sessionId, videoUUID))
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      return
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    }
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    if (expectedSessionId && expectedSessionId !== sessionId) {
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      logger.debug(
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        `No live session ${expectedSessionId} to stop for video ${videoUUID} (current session: ${sessionId})`,
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        lTags(sessionId, videoUUID)
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      )
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      return
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    }
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    logger.info('Stopping live session of video %s', videoUUID, { error, ...lTags(sessionId, videoUUID) })
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    this.saveEndingSession(options)
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      .catch(err => logger.error('Cannot save ending session.', { err, ...lTags(sessionId, videoUUID) }))
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    this.videoSessions.delete(videoUUID)
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    this.abortSession(sessionId)
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  }
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  private getContext () {
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    return context
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  }
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  private abortSession (sessionId: string) {
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    const session = this.getContext().sessions.get(sessionId)
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    if (session) {
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      session.stop()
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      this.getContext().sessions.delete(sessionId)
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    }
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    const muxingSession = this.muxingSessions.get(sessionId)
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    if (muxingSession) {
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      // Muxing session will fire and event so we correctly cleanup the session
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      muxingSession.abort()
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      this.muxingSessions.delete(sessionId)
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    }
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  }
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  private async handleSession (options: {
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    sessionId: string
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    inputLocalUrl: string
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    inputPublicUrl: string
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    streamKey: string
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  }) {
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    const { inputLocalUrl, inputPublicUrl, sessionId, streamKey } = options
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    const videoLive = await VideoLiveModel.loadByStreamKey(streamKey)
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    if (!videoLive) {
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      logger.warn('Unknown live video with stream key %s.', streamKey, lTags(sessionId))
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      return this.abortSession(sessionId)
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    }
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    const video = videoLive.Video
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    if (video.isBlacklisted()) {
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      logger.warn('Video is blacklisted. Refusing stream %s.', streamKey, lTags(sessionId, video.uuid))
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      return this.abortSession(sessionId)
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    }
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    const user = await UserModel.loadByLiveId(videoLive.id)
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    if (user.blocked) {
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      logger.warn('User is blocked. Refusing stream %s.', streamKey, lTags(sessionId, video.uuid))
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      return this.abortSession(sessionId)
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    }
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    if (this.videoSessions.has(video.uuid)) {
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      logger.warn('Video %s has already a live session. Refusing stream %s.', video.uuid, streamKey, lTags(sessionId, video.uuid))
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      return this.abortSession(sessionId)
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    }
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    // Cleanup old potential live (could happen with a permanent live)
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    const oldStreamingPlaylist = await VideoStreamingPlaylistModel.loadHLSPlaylistByVideo(video.id)
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    if (oldStreamingPlaylist) {
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      if (!videoLive.permanentLive) throw new Error('Found previous session in a non permanent live: ' + video.uuid)
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      await cleanupAndDestroyPermanentLive(video, oldStreamingPlaylist)
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    }
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    this.videoSessions.set(video.uuid, sessionId)
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    const now = Date.now()
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    const probe = await ffprobePromise(inputLocalUrl)
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    const [ { resolution, ratio }, fps, bitrate, hasAudio ] = await Promise.all([
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      getVideoStreamDimensionsInfo(inputLocalUrl, probe),
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      getVideoStreamFPS(inputLocalUrl, probe),
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      getVideoStreamBitrate(inputLocalUrl, probe),
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      hasAudioStream(inputLocalUrl, probe)
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    ])
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    logger.info(
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      '%s probing took %d ms (bitrate: %d, fps: %d, resolution: %d)',
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      inputLocalUrl, Date.now() - now, bitrate, fps, resolution, lTags(sessionId, video.uuid)
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    )
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    const allResolutions = await Hooks.wrapObject(
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      this.buildAllResolutionsToTranscode(resolution, hasAudio),
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      'filter:transcoding.auto.resolutions-to-transcode.result',
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      { video }
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    )
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    logger.info(
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      'Handling live video of original resolution %d.', resolution,
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      { allResolutions, ...lTags(sessionId, video.uuid) }
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    )
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    return this.runMuxingSession({
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      sessionId,
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      videoLive,
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      user,
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      inputLocalUrl,
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      inputPublicUrl,
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      fps,
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      bitrate,
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      ratio,
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      allResolutions,
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      hasAudio,
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      probe
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    })
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  }
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  private async runMuxingSession (options: {
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    sessionId: string
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    videoLive: MVideoLiveVideoWithSetting
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    user: MUser
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    inputLocalUrl: string
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    inputPublicUrl: string
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    fps: number
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    bitrate: number
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    ratio: number
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    allResolutions: number[]
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    hasAudio: boolean
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    probe: FfprobeData
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  }) {
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    const { sessionId, videoLive, user, ratio } = options
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    const videoUUID = videoLive.Video.uuid
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    const localLTags = lTags(sessionId, videoUUID)
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    const liveSession = await this.saveStartingSession(videoLive)
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    LiveQuotaStore.Instance.addNewLive(user.id, sessionId)
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    const muxingSession = new MuxingSession({
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      context: this.getContext(),
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      sessionId,
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      videoLive,
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      user,
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      ...pick(options, [ 'inputLocalUrl', 'inputPublicUrl', 'bitrate', 'ratio', 'fps', 'allResolutions', 'hasAudio', 'probe' ])
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    })
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    muxingSession.on('live-ready', () => this.publishAndFederateLive({ live: videoLive, ratio, localLTags }))
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    muxingSession.on('bad-socket-health', ({ videoUUID }) => {
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      logger.error(
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        'Too much data in client socket stream (ffmpeg is too slow to transcode the video).' +
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        ' Stopping session of video %s.', videoUUID,
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        localLTags
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      )
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      this.stopSessionOfVideo({ videoUUID, error: LiveVideoError.BAD_SOCKET_HEALTH })
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    })
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    muxingSession.on('duration-exceeded', ({ videoUUID }) => {
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      logger.info('Stopping session of %s: max duration exceeded.', videoUUID, localLTags)
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      this.stopSessionOfVideo({ videoUUID, error: LiveVideoError.DURATION_EXCEEDED })
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    })
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    muxingSession.on('quota-exceeded', ({ videoUUID }) => {
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      logger.info('Stopping session of %s: user quota exceeded.', videoUUID, localLTags)
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      this.stopSessionOfVideo({ videoUUID, error: LiveVideoError.QUOTA_EXCEEDED })
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    })
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    muxingSession.on('transcoding-error', ({ videoUUID }) => {
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      this.stopSessionOfVideo({ videoUUID, error: LiveVideoError.FFMPEG_ERROR })
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    })
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    muxingSession.on('transcoding-end', ({ videoUUID }) => {
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      this.onMuxingFFmpegEnd(videoUUID, sessionId)
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    })
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    muxingSession.on('after-cleanup', ({ videoUUID }) => {
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      this.muxingSessions.delete(sessionId)
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      LiveQuotaStore.Instance.removeLive(user.id, sessionId)
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      muxingSession.destroy()
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      return this.onAfterMuxingCleanup({ videoUUID, liveSession })
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        .catch(err => logger.error('Error in end transmuxing.', { err, ...localLTags }))
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    })
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    this.muxingSessions.set(sessionId, muxingSession)
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    muxingSession.runMuxing()
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      .catch(err => {
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        logger.error('Cannot run muxing.', { err, ...localLTags })
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        this.muxingSessions.delete(sessionId)
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        muxingSession.destroy()
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        this.stopSessionOfVideo({
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          videoUUID,
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          error: err.liveVideoErrorCode || LiveVideoError.UNKNOWN_ERROR,
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          errorOnReplay: true // Replay cannot be processed as muxing session failed directly
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        })
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      })
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  }
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  private async publishAndFederateLive (options: {
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    live: MVideoLiveVideo
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    ratio: number
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    localLTags: { tags: (string | number)[] }
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  }) {
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    const { live, ratio, localLTags } = options
 | 
						|
 | 
						|
    const videoId = live.videoId
 | 
						|
 | 
						|
    try {
 | 
						|
      const video = await VideoModel.loadFull(videoId)
 | 
						|
 | 
						|
      logger.info('Will publish and federate live %s.', video.url, localLTags)
 | 
						|
 | 
						|
      video.state = VideoState.PUBLISHED
 | 
						|
      video.publishedAt = new Date()
 | 
						|
      video.aspectRatio = ratio
 | 
						|
      await video.save()
 | 
						|
 | 
						|
      live.Video = video
 | 
						|
 | 
						|
      await wait(getLiveSegmentTime(live.latencyMode) * 1000 * VIDEO_LIVE.EDGE_LIVE_DELAY_SEGMENTS_NOTIFICATION)
 | 
						|
 | 
						|
      try {
 | 
						|
        await federateVideoIfNeeded(video, false)
 | 
						|
      } catch (err) {
 | 
						|
        logger.error('Cannot federate live video %s.', video.url, { err, ...localLTags })
 | 
						|
      }
 | 
						|
 | 
						|
      Notifier.Instance.notifyOnNewVideoOrLiveIfNeeded(video)
 | 
						|
      PeerTubeSocket.Instance.sendVideoLiveNewState(video)
 | 
						|
 | 
						|
      Hooks.runAction('action:live.video.state.updated', { video })
 | 
						|
    } catch (err) {
 | 
						|
      logger.error('Cannot save/federate live video %d.', videoId, { err, ...localLTags })
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  private onMuxingFFmpegEnd (videoUUID: string, sessionId: string) {
 | 
						|
    // Session already cleaned up
 | 
						|
    if (!this.videoSessions.has(videoUUID)) return
 | 
						|
 | 
						|
    this.videoSessions.delete(videoUUID)
 | 
						|
 | 
						|
    this.saveEndingSession({ videoUUID, error: null })
 | 
						|
      .catch(err => logger.error('Cannot save ending session.', { err, ...lTags(sessionId) }))
 | 
						|
  }
 | 
						|
 | 
						|
  private async onAfterMuxingCleanup (options: {
 | 
						|
    videoUUID: string
 | 
						|
    liveSession?: MVideoLiveSession
 | 
						|
    cleanupNow?: boolean // Default false
 | 
						|
  }) {
 | 
						|
    const { videoUUID, liveSession: liveSessionArg, cleanupNow = false } = options
 | 
						|
 | 
						|
    logger.debug('Live of video %s has been cleaned up. Moving to its next state.', videoUUID, lTags(videoUUID))
 | 
						|
 | 
						|
    try {
 | 
						|
      const fullVideo = await VideoModel.loadFull(videoUUID)
 | 
						|
      if (!fullVideo) return
 | 
						|
 | 
						|
      const live = await VideoLiveModel.loadByVideoId(fullVideo.id)
 | 
						|
 | 
						|
      const liveSession = liveSessionArg ?? await VideoLiveSessionModel.findLatestSessionOf(fullVideo.id)
 | 
						|
 | 
						|
      // On server restart during a live
 | 
						|
      if (!liveSession.endDate) {
 | 
						|
        liveSession.endDate = new Date()
 | 
						|
        await liveSession.save()
 | 
						|
      }
 | 
						|
 | 
						|
      JobQueue.Instance.createJobAsync({
 | 
						|
        type: 'video-live-ending',
 | 
						|
        payload: {
 | 
						|
          videoId: fullVideo.id,
 | 
						|
 | 
						|
          replayDirectory: live.saveReplay
 | 
						|
            ? await this.findReplayDirectory(fullVideo)
 | 
						|
            : undefined,
 | 
						|
 | 
						|
          liveSessionId: liveSession.id,
 | 
						|
          streamingPlaylistId: fullVideo.getHLSPlaylist()?.id,
 | 
						|
 | 
						|
          publishedAt: fullVideo.publishedAt.toISOString()
 | 
						|
        },
 | 
						|
 | 
						|
        delay: cleanupNow
 | 
						|
          ? 0
 | 
						|
          : VIDEO_LIVE.CLEANUP_DELAY
 | 
						|
      })
 | 
						|
 | 
						|
      fullVideo.state = live.permanentLive
 | 
						|
        ? VideoState.WAITING_FOR_LIVE
 | 
						|
        : VideoState.LIVE_ENDED
 | 
						|
 | 
						|
      await fullVideo.save()
 | 
						|
 | 
						|
      PeerTubeSocket.Instance.sendVideoLiveNewState(fullVideo)
 | 
						|
 | 
						|
      await federateVideoIfNeeded(fullVideo, false)
 | 
						|
 | 
						|
      Hooks.runAction('action:live.video.state.updated', { video: fullVideo })
 | 
						|
    } catch (err) {
 | 
						|
      logger.error('Cannot save/federate new video state of live streaming of video %s.', videoUUID, { err, ...lTags(videoUUID) })
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  private async handleBrokenLives () {
 | 
						|
    await RunnerJobModel.cancelAllNonFinishedJobs({ type: 'live-rtmp-hls-transcoding' })
 | 
						|
 | 
						|
    const videoUUIDs = await VideoModel.listPublishedLiveUUIDs()
 | 
						|
 | 
						|
    for (const uuid of videoUUIDs) {
 | 
						|
      await this.onAfterMuxingCleanup({ videoUUID: uuid, cleanupNow: true })
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  private async findReplayDirectory (video: MVideo) {
 | 
						|
    const directory = getLiveReplayBaseDirectory(video)
 | 
						|
    const files = await readdir(directory)
 | 
						|
 | 
						|
    if (files.length === 0) return undefined
 | 
						|
 | 
						|
    return join(directory, files.sort().reverse()[0])
 | 
						|
  }
 | 
						|
 | 
						|
  private buildAllResolutionsToTranscode (originResolution: number, hasAudio: boolean) {
 | 
						|
    const includeInput = CONFIG.LIVE.TRANSCODING.ALWAYS_TRANSCODE_ORIGINAL_RESOLUTION
 | 
						|
 | 
						|
    const resolutionsEnabled = CONFIG.LIVE.TRANSCODING.ENABLED
 | 
						|
      ? computeResolutionsToTranscode({ input: originResolution, type: 'live', includeInput, strictLower: false, hasAudio })
 | 
						|
      : []
 | 
						|
 | 
						|
    if (resolutionsEnabled.length === 0) {
 | 
						|
      return [ originResolution ]
 | 
						|
    }
 | 
						|
 | 
						|
    return resolutionsEnabled
 | 
						|
  }
 | 
						|
 | 
						|
  private async saveStartingSession (videoLive: MVideoLiveVideoWithSetting) {
 | 
						|
    const replaySettings = videoLive.saveReplay
 | 
						|
      ? new VideoLiveReplaySettingModel({
 | 
						|
        privacy: videoLive.ReplaySetting.privacy
 | 
						|
      })
 | 
						|
      : null
 | 
						|
 | 
						|
    return sequelizeTypescript.transaction(async t => {
 | 
						|
      if (videoLive.saveReplay) {
 | 
						|
        await replaySettings.save({ transaction: t })
 | 
						|
      }
 | 
						|
 | 
						|
      return VideoLiveSessionModel.create({
 | 
						|
        startDate: new Date(),
 | 
						|
        liveVideoId: videoLive.videoId,
 | 
						|
        saveReplay: videoLive.saveReplay,
 | 
						|
        replaySettingId: videoLive.saveReplay ? replaySettings.id : null,
 | 
						|
        endingProcessed: false
 | 
						|
      }, { transaction: t })
 | 
						|
    })
 | 
						|
  }
 | 
						|
 | 
						|
  private async saveEndingSession (options: {
 | 
						|
    videoUUID: string
 | 
						|
    error: LiveVideoErrorType | null
 | 
						|
    errorOnReplay?: boolean
 | 
						|
  }) {
 | 
						|
    const { videoUUID, error, errorOnReplay } = options
 | 
						|
 | 
						|
    const liveSession = await VideoLiveSessionModel.findCurrentSessionOf(videoUUID)
 | 
						|
    if (!liveSession) return
 | 
						|
 | 
						|
    liveSession.endDate = new Date()
 | 
						|
    liveSession.error = error
 | 
						|
 | 
						|
    if (errorOnReplay === true) {
 | 
						|
      liveSession.endingProcessed = true
 | 
						|
    }
 | 
						|
 | 
						|
    return liveSession.save()
 | 
						|
  }
 | 
						|
 | 
						|
  static get Instance () {
 | 
						|
    return this.instance || (this.instance = new this())
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
// ---------------------------------------------------------------------------
 | 
						|
 | 
						|
export {
 | 
						|
  LiveManager
 | 
						|
}
 |