]> git.immae.eu Git - github/Chocobozzz/PeerTube.git/blobdiff - server/lib/live-manager.ts
Instance homepage support (#4007)
[github/Chocobozzz/PeerTube.git] / server / lib / live-manager.ts
index e85998686ff41365c68a844b2a1f727ffed7b02b..8e7fd551171dbb9fda4b1254293512637b15e738 100644 (file)
@@ -1,36 +1,34 @@
 
-import { AsyncQueue, queue } from 'async'
+import * as Bluebird from 'bluebird'
 import * as chokidar from 'chokidar'
 import { FfmpegCommand } from 'fluent-ffmpeg'
-import { ensureDir, stat } from 'fs-extra'
-import { basename } from 'path'
+import { appendFile, ensureDir, readFile, stat } from 'fs-extra'
+import { createServer, Server } from 'net'
+import { basename, join } from 'path'
 import { isTestInstance } from '@server/helpers/core-utils'
-import {
-  computeResolutionsToTranscode,
-  getVideoFileFPS,
-  getVideoFileResolution,
-  runLiveMuxing,
-  runLiveTranscoding
-} from '@server/helpers/ffmpeg-utils'
+import { getLiveMuxingCommand, getLiveTranscodingCommand } from '@server/helpers/ffmpeg-utils'
+import { computeResolutionsToTranscode, getVideoFileFPS, getVideoFileResolution } from '@server/helpers/ffprobe-utils'
 import { logger } from '@server/helpers/logger'
 import { CONFIG, registerConfigChangedHandler } from '@server/initializers/config'
 import { MEMOIZE_TTL, P2P_MEDIA_LOADER_PEER_VERSION, VIDEO_LIVE, VIEW_LIFETIME, WEBSERVER } from '@server/initializers/constants'
-import { UserModel } from '@server/models/account/user'
+import { UserModel } from '@server/models/user/user'
 import { VideoModel } from '@server/models/video/video'
 import { VideoFileModel } from '@server/models/video/video-file'
 import { VideoLiveModel } from '@server/models/video/video-live'
 import { VideoStreamingPlaylistModel } from '@server/models/video/video-streaming-playlist'
-import { MStreamingPlaylist, MUserId, MVideoLive, MVideoLiveVideo } from '@server/types/models'
+import { MStreamingPlaylist, MStreamingPlaylistVideo, MUserId, MVideoLive, MVideoLiveVideo } from '@server/types/models'
 import { VideoState, VideoStreamingPlaylistType } from '@shared/models'
 import { federateVideoIfNeeded } from './activitypub/videos'
 import { buildSha256Segment } from './hls'
 import { JobQueue } from './job-queue'
+import { cleanupLive } from './job-queue/handlers/video-live-ending'
 import { PeerTubeSocket } from './peertube-socket'
+import { VideoTranscodingProfilesManager } from './transcoding/video-transcoding-profiles'
 import { isAbleToUploadVideo } from './user'
 import { getHLSDirectory } from './video-paths'
 
 import memoizee = require('memoizee')
-const NodeRtmpServer = require('node-media-server/node_rtmp_server')
+const NodeRtmpSession = require('node-media-server/node_rtmp_session')
 const context = require('node-media-server/node_core_ctx')
 const nodeMediaServerLogger = require('node-media-server/node_core_logger')
 
@@ -50,12 +48,6 @@ const config = {
   }
 }
 
-type SegmentSha256QueueParam = {
-  operation: 'update' | 'delete'
-  videoUUID: string
-  segmentPath: string
-}
-
 class LiveManager {
 
   private static instance: LiveManager
@@ -71,8 +63,11 @@ class LiveManager {
     return isAbleToUploadVideo(userId, 1000)
   }, { maxAge: MEMOIZE_TTL.LIVE_ABLE_TO_UPLOAD })
 
-  private segmentsSha256Queue: AsyncQueue<SegmentSha256QueueParam>
-  private rtmpServer: any
+  private readonly hasClientSocketsInBadHealthWithCache = memoizee((sessionId: string) => {
+    return this.hasClientSocketsInBadHealth(sessionId)
+  }, { maxAge: MEMOIZE_TTL.LIVE_CHECK_SOCKET_HEALTH })
+
+  private rtmpServer: Server
 
   private constructor () {
   }
@@ -96,18 +91,6 @@ class LiveManager {
       logger.info('Live session ended.', { sessionId })
     })
 
-    this.segmentsSha256Queue = queue<SegmentSha256QueueParam, Error>((options, cb) => {
-      const promise = options.operation === 'update'
-        ? this.addSegmentSha(options)
-        : Promise.resolve(this.removeSegmentSha(options))
-
-      promise.then(() => cb())
-        .catch(err => {
-          logger.error('Cannot update/remove sha segment %s.', options.segmentPath, { err })
-          cb()
-        })
-    })
-
     registerConfigChangedHandler(() => {
       if (!this.rtmpServer && CONFIG.LIVE.ENABLED === true) {
         this.run()
@@ -119,21 +102,41 @@ class LiveManager {
       }
     })
 
+    // Cleanup broken lives, that were terminated by a server restart for example
+    this.handleBrokenLives()
+      .catch(err => logger.error('Cannot handle broken lives.', { err }))
+
     setInterval(() => this.updateLiveViews(), VIEW_LIFETIME.LIVE)
   }
 
   run () {
     logger.info('Running RTMP server on port %d', config.rtmp.port)
 
-    this.rtmpServer = new NodeRtmpServer(config)
-    this.rtmpServer.run()
+    this.rtmpServer = createServer(socket => {
+      const session = new NodeRtmpSession(config, socket)
+
+      session.run()
+    })
+
+    this.rtmpServer.on('error', err => {
+      logger.error('Cannot run RTMP server.', { err })
+    })
+
+    this.rtmpServer.listen(CONFIG.LIVE.RTMP.PORT)
   }
 
   stop () {
     logger.info('Stopping RTMP server.')
 
-    this.rtmpServer.stop()
+    this.rtmpServer.close()
     this.rtmpServer = undefined
+
+    // Sessions is an object
+    this.getContext().sessions.forEach((session: any) => {
+      if (session instanceof NodeRtmpSession) {
+        session.stop()
+      }
+    })
   }
 
   isRunning () {
@@ -172,6 +175,36 @@ class LiveManager {
     watchers.push(new Date().getTime())
   }
 
+  cleanupShaSegments (videoUUID: string) {
+    this.segmentsSha256.delete(videoUUID)
+  }
+
+  addSegmentToReplay (hlsVideoPath: string, segmentPath: string) {
+    const segmentName = basename(segmentPath)
+    const dest = join(hlsVideoPath, VIDEO_LIVE.REPLAY_DIRECTORY, this.buildConcatenatedName(segmentName))
+
+    return readFile(segmentPath)
+      .then(data => appendFile(dest, data))
+      .catch(err => logger.error('Cannot copy segment %s to repay directory.', segmentPath, { err }))
+  }
+
+  buildConcatenatedName (segmentOrPlaylistPath: string) {
+    const num = basename(segmentOrPlaylistPath).match(/^(\d+)(-|\.)/)
+
+    return 'concat-' + num[1] + '.ts'
+  }
+
+  private processSegments (hlsVideoPath: string, videoUUID: string, videoLive: MVideoLive, segmentPaths: string[]) {
+    Bluebird.mapSeries(segmentPaths, async previousSegment => {
+      // Add sha hash of previous segments, because ffmpeg should have finished generating them
+      await this.addSegmentSha(videoUUID, previousSegment)
+
+      if (videoLive.saveReplay) {
+        await this.addSegmentToReplay(hlsVideoPath, previousSegment)
+      }
+    }).catch(err => logger.error('Cannot process segments in %s', hlsVideoPath, { err }))
+  }
+
   private getContext () {
     return context
   }
@@ -203,6 +236,14 @@ class LiveManager {
       return this.abortSession(sessionId)
     }
 
+    // Cleanup old potential live files (could happen with a permanent live)
+    this.cleanupShaSegments(video.uuid)
+
+    const oldStreamingPlaylist = await VideoStreamingPlaylistModel.loadHLSPlaylistByVideo(video.id)
+    if (oldStreamingPlaylist) {
+      await cleanupLive(video, oldStreamingPlaylist)
+    }
+
     this.videoSessions.set(video.id, sessionId)
 
     const playlistUrl = WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsMasterPlaylistStaticPath(video.uuid)
@@ -219,13 +260,15 @@ class LiveManager {
       ? computeResolutionsToTranscode(resolutionResult.videoFileResolution, 'live')
       : []
 
-    logger.info('Will mux/transcode live video of original resolution %d.', session.videoHeight, { resolutionsEnabled })
+    const allResolutions = resolutionsEnabled.concat([ session.videoHeight ])
+
+    logger.info('Will mux/transcode live video of original resolution %d.', session.videoHeight, { allResolutions })
 
     const [ videoStreamingPlaylist ] = await VideoStreamingPlaylistModel.upsert({
       videoId: video.id,
       playlistUrl,
       segmentsSha256Url: WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsSha256SegmentsStaticPath(video.uuid, video.isLive),
-      p2pMediaLoaderInfohashes: VideoStreamingPlaylistModel.buildP2PMediaLoaderInfoHashes(playlistUrl, resolutionsEnabled),
+      p2pMediaLoaderInfohashes: VideoStreamingPlaylistModel.buildP2PMediaLoaderInfoHashes(playlistUrl, allResolutions),
       p2pMediaLoaderPeerVersion: P2P_MEDIA_LOADER_PEER_VERSION,
 
       type: VideoStreamingPlaylistType.HLS
@@ -234,26 +277,23 @@ class LiveManager {
     return this.runMuxing({
       sessionId,
       videoLive,
-      playlist: videoStreamingPlaylist,
-      originalResolution: session.videoHeight,
+      playlist: Object.assign(videoStreamingPlaylist, { Video: video }),
       rtmpUrl,
       fps,
-      resolutionsEnabled
+      allResolutions
     })
   }
 
   private async runMuxing (options: {
     sessionId: string
     videoLive: MVideoLiveVideo
-    playlist: MStreamingPlaylist
+    playlist: MStreamingPlaylistVideo
     rtmpUrl: string
     fps: number
-    resolutionsEnabled: number[]
-    originalResolution: number
+    allResolutions: number[]
   }) {
-    const { sessionId, videoLive, playlist, resolutionsEnabled, originalResolution, fps, rtmpUrl } = options
+    const { sessionId, videoLive, playlist, allResolutions, fps, rtmpUrl } = options
     const startStreamDateTime = new Date().getTime()
-    const allResolutions = resolutionsEnabled.concat([ originalResolution ])
 
     const user = await UserModel.loadByLiveId(videoLive.id)
     if (!this.livesPerUser.has(user.id)) {
@@ -267,42 +307,74 @@ class LiveManager {
     for (let i = 0; i < allResolutions.length; i++) {
       const resolution = allResolutions[i]
 
-      VideoFileModel.upsert({
+      const file = new VideoFileModel({
         resolution,
         size: -1,
         extname: '.ts',
         infoHash: null,
         fps,
         videoStreamingPlaylistId: playlist.id
-      }).catch(err => {
-        logger.error('Cannot create file for live streaming.', { err })
       })
+
+      VideoFileModel.customUpsert(file, 'streaming-playlist', null)
+        .catch(err => logger.error('Cannot create file for live streaming.', { err }))
     }
 
     const outPath = getHLSDirectory(videoLive.Video)
     await ensureDir(outPath)
 
+    const replayDirectory = join(outPath, VIDEO_LIVE.REPLAY_DIRECTORY)
+
+    if (videoLive.saveReplay === true) {
+      await ensureDir(replayDirectory)
+    }
+
     const videoUUID = videoLive.Video.uuid
-    const deleteSegments = videoLive.saveReplay === false
 
     const ffmpegExec = CONFIG.LIVE.TRANSCODING.ENABLED
-      ? runLiveTranscoding(rtmpUrl, outPath, allResolutions, fps, deleteSegments)
-      : runLiveMuxing(rtmpUrl, outPath, deleteSegments)
+      ? await getLiveTranscodingCommand({
+        rtmpUrl,
+        outPath,
+        resolutions: allResolutions,
+        fps,
+        availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
+        profile: CONFIG.LIVE.TRANSCODING.PROFILE
+      })
+      : getLiveMuxingCommand(rtmpUrl, outPath)
 
     logger.info('Running live muxing/transcoding for %s.', videoUUID)
     this.transSessions.set(sessionId, ffmpegExec)
 
     const tsWatcher = chokidar.watch(outPath + '/*.ts')
 
-    const updateSegment = segmentPath => this.segmentsSha256Queue.push({ operation: 'update', segmentPath, videoUUID })
+    const segmentsToProcessPerPlaylist: { [playlistId: string]: string[] } = {}
+    const playlistIdMatcher = /^([\d+])-/
 
     const addHandler = segmentPath => {
-      updateSegment(segmentPath)
+      logger.debug('Live add handler of %s.', segmentPath)
 
+      const playlistId = basename(segmentPath).match(playlistIdMatcher)[0]
+
+      const segmentsToProcess = segmentsToProcessPerPlaylist[playlistId] || []
+      this.processSegments(outPath, videoUUID, videoLive, segmentsToProcess)
+
+      segmentsToProcessPerPlaylist[playlistId] = [ segmentPath ]
+
+      if (this.hasClientSocketsInBadHealthWithCache(sessionId)) {
+        logger.error(
+          'Too much data in client socket stream (ffmpeg is too slow to transcode the video).' +
+          ' Stopping session of video %s.', videoUUID)
+
+        this.stopSessionOf(videoLive.videoId)
+        return
+      }
+
+      // Duration constraint check
       if (this.isDurationConstraintValid(startStreamDateTime) !== true) {
         logger.info('Stopping session of %s: max duration exceeded.', videoUUID)
 
         this.stopSessionOf(videoLive.videoId)
+        return
       }
 
       // Check user quota if the user enabled replay saving
@@ -323,10 +395,9 @@ class LiveManager {
       }
     }
 
-    const deleteHandler = segmentPath => this.segmentsSha256Queue.push({ operation: 'delete', segmentPath, videoUUID })
+    const deleteHandler = segmentPath => this.removeSegmentSha(videoUUID, segmentPath)
 
     tsWatcher.on('add', p => addHandler(p))
-    tsWatcher.on('change', p => updateSegment(p))
     tsWatcher.on('unlink', p => deleteHandler(p))
 
     const masterWatcher = chokidar.watch(outPath + '/master.m3u8')
@@ -338,11 +409,15 @@ class LiveManager {
         await video.save()
         videoLive.Video = video
 
-        await federateVideoIfNeeded(video, false)
+        setTimeout(() => {
+          federateVideoIfNeeded(video, false)
+            .catch(err => logger.error('Cannot federate live video %s.', video.url, { err }))
+
+          PeerTubeSocket.Instance.sendVideoLiveNewState(video)
+        }, VIDEO_LIVE.SEGMENT_TIME_SECONDS * 1000 * VIDEO_LIVE.EDGE_LIVE_DELAY_SEGMENTS_NOTIFICATION)
 
-        PeerTubeSocket.Instance.sendVideoLiveNewState(video)
       } catch (err) {
-        logger.error('Cannot federate video %d.', videoLive.videoId, { err })
+        logger.error('Cannot save/federate live video %d.', videoLive.videoId, { err })
       } finally {
         masterWatcher.close()
           .catch(err => logger.error('Cannot close master watcher of %s.', outPath, { err }))
@@ -353,13 +428,29 @@ class LiveManager {
       logger.info('RTMP transmuxing for video %s ended. Scheduling cleanup', rtmpUrl)
 
       this.transSessions.delete(sessionId)
+
       this.watchersPerVideo.delete(videoLive.videoId)
+      this.videoSessions.delete(videoLive.videoId)
+
+      const newLivesPerUser = this.livesPerUser.get(user.id)
+                                               .filter(o => o.liveId !== videoLive.id)
+      this.livesPerUser.set(user.id, newLivesPerUser)
 
-      Promise.all([ tsWatcher.close(), masterWatcher.close() ])
-        .catch(err => logger.error('Cannot close watchers of %s.', outPath, { err }))
+      setTimeout(() => {
+        // Wait latest segments generation, and close watchers
 
-      this.onEndTransmuxing(videoLive.Video.id)
-        .catch(err => logger.error('Error in closed transmuxing.', { err }))
+        Promise.all([ tsWatcher.close(), masterWatcher.close() ])
+          .then(() => {
+            // Process remaining segments hash
+            for (const key of Object.keys(segmentsToProcessPerPlaylist)) {
+              this.processSegments(outPath, videoUUID, videoLive, segmentsToProcessPerPlaylist[key])
+            }
+          })
+          .catch(err => logger.error('Cannot close watchers of %s or process remaining hash segments.', outPath, { err }))
+
+        this.onEndTransmuxing(videoLive.Video.id)
+          .catch(err => logger.error('Error in closed transmuxing.', { err }))
+      }, 1000)
     }
 
     ffmpegExec.on('error', (err, stdout, stderr) => {
@@ -374,6 +465,8 @@ class LiveManager {
     })
 
     ffmpegExec.on('end', () => onFFmpegEnded())
+
+    ffmpegExec.run()
   }
 
   private async onEndTransmuxing (videoId: number, cleanupNow = false) {
@@ -381,51 +474,58 @@ class LiveManager {
       const fullVideo = await VideoModel.loadAndPopulateAccountAndServerAndTags(videoId)
       if (!fullVideo) return
 
-      JobQueue.Instance.createJob({
-        type: 'video-live-ending',
-        payload: {
-          videoId: fullVideo.id
-        }
-      }, { delay: cleanupNow ? 0 : VIDEO_LIVE.CLEANUP_DELAY })
+      const live = await VideoLiveModel.loadByVideoId(videoId)
+
+      if (!live.permanentLive) {
+        JobQueue.Instance.createJob({
+          type: 'video-live-ending',
+          payload: {
+            videoId: fullVideo.id
+          }
+        }, { delay: cleanupNow ? 0 : VIDEO_LIVE.CLEANUP_DELAY })
+
+        fullVideo.state = VideoState.LIVE_ENDED
+      } else {
+        fullVideo.state = VideoState.WAITING_FOR_LIVE
+      }
 
-      fullVideo.state = VideoState.LIVE_ENDED
       await fullVideo.save()
 
       PeerTubeSocket.Instance.sendVideoLiveNewState(fullVideo)
 
       await federateVideoIfNeeded(fullVideo, false)
     } catch (err) {
-      logger.error('Cannot save/federate new video state of live streaming.', { err })
+      logger.error('Cannot save/federate new video state of live streaming of video id %d.', videoId, { err })
     }
   }
 
-  private async addSegmentSha (options: SegmentSha256QueueParam) {
-    const segmentName = basename(options.segmentPath)
-    logger.debug('Updating live sha segment %s.', options.segmentPath)
+  private async addSegmentSha (videoUUID: string, segmentPath: string) {
+    const segmentName = basename(segmentPath)
+    logger.debug('Adding live sha segment %s.', segmentPath)
 
-    const shaResult = await buildSha256Segment(options.segmentPath)
+    const shaResult = await buildSha256Segment(segmentPath)
 
-    if (!this.segmentsSha256.has(options.videoUUID)) {
-      this.segmentsSha256.set(options.videoUUID, new Map())
+    if (!this.segmentsSha256.has(videoUUID)) {
+      this.segmentsSha256.set(videoUUID, new Map())
     }
 
-    const filesMap = this.segmentsSha256.get(options.videoUUID)
+    const filesMap = this.segmentsSha256.get(videoUUID)
     filesMap.set(segmentName, shaResult)
   }
 
-  private removeSegmentSha (options: SegmentSha256QueueParam) {
-    const segmentName = basename(options.segmentPath)
+  private removeSegmentSha (videoUUID: string, segmentPath: string) {
+    const segmentName = basename(segmentPath)
 
-    logger.debug('Removing live sha segment %s.', options.segmentPath)
+    logger.debug('Removing live sha segment %s.', segmentPath)
 
-    const filesMap = this.segmentsSha256.get(options.videoUUID)
+    const filesMap = this.segmentsSha256.get(videoUUID)
     if (!filesMap) {
-      logger.warn('Unknown files map to remove sha for %s.', options.videoUUID)
+      logger.warn('Unknown files map to remove sha for %s.', videoUUID)
       return
     }
 
     if (!filesMap.has(segmentName)) {
-      logger.warn('Unknown segment in files map for video %s and segment %s.', options.videoUUID, options.segmentPath)
+      logger.warn('Unknown segment in files map for video %s and segment %s.', videoUUID, segmentPath)
       return
     }
 
@@ -435,7 +535,7 @@ class LiveManager {
   private isDurationConstraintValid (streamingStartTime: number) {
     const maxDuration = CONFIG.LIVE.MAX_DURATION
     // No limit
-    if (maxDuration === null) return true
+    if (maxDuration < 0) return true
 
     const now = new Date().getTime()
     const max = streamingStartTime + maxDuration
@@ -443,6 +543,30 @@ class LiveManager {
     return now <= max
   }
 
+  private hasClientSocketsInBadHealth (sessionId: string) {
+    const rtmpSession = this.getContext().sessions.get(sessionId)
+
+    if (!rtmpSession) {
+      logger.warn('Cannot get session %s to check players socket health.', sessionId)
+      return
+    }
+
+    for (const playerSessionId of rtmpSession.players) {
+      const playerSession = this.getContext().sessions.get(playerSessionId)
+
+      if (!playerSession) {
+        logger.error('Cannot get player session %s to check socket health.', playerSession)
+        continue
+      }
+
+      if (playerSession.socket.writableLength > VIDEO_LIVE.MAX_SOCKET_WAITING_DATA) {
+        return true
+      }
+    }
+
+    return false
+  }
+
   private async isQuotaConstraintValid (user: MUserId, live: MVideoLive) {
     if (live.saveReplay !== true) return true
 
@@ -467,6 +591,8 @@ class LiveManager {
 
       await federateVideoIfNeeded(video, false)
 
+      PeerTubeSocket.Instance.sendVideoViewsUpdate(video)
+
       // Only keep not expired watchers
       const newWatchers = watchers.filter(w => w > notBefore)
       this.watchersPerVideo.set(videoId, newWatchers)
@@ -475,6 +601,14 @@ class LiveManager {
     }
   }
 
+  private async handleBrokenLives () {
+    const videoIds = await VideoModel.listPublishedLiveIds()
+
+    for (const id of videoIds) {
+      await this.onEndTransmuxing(id, true)
+    }
+  }
+
   static get Instance () {
     return this.instance || (this.instance = new this())
   }