server/lib/job-queue/handlers/video-live-ending.ts

   1 import * as Bull from 'bull'
   2 import { move, readdir, remove } from 'fs-extra'
   3 import { join } from 'path'
   4 import { hlsPlaylistToFragmentedMP4 } from '@server/helpers/ffmpeg-utils'
   5 import { getDurationFromVideoFile, getVideoFileResolution } from '@server/helpers/ffprobe-utils'
   6 import { generateVideoMiniature } from '@server/lib/thumbnail'
   7 import { publishAndFederateIfNeeded } from '@server/lib/video'
   8 import { getHLSDirectory } from '@server/lib/video-paths'
   9 import { generateHlsPlaylist } from '@server/lib/video-transcoding'
  10 import { VideoModel } from '@server/models/video/video'
  11 import { VideoFileModel } from '@server/models/video/video-file'
  12 import { VideoLiveModel } from '@server/models/video/video-live'
  13 import { VideoStreamingPlaylistModel } from '@server/models/video/video-streaming-playlist'
  14 import { MStreamingPlaylist, MVideo, MVideoLive } from '@server/types/models'
  15 import { ThumbnailType, VideoLiveEndingPayload, VideoState } from '@shared/models'
  16 import { logger } from '../../../helpers/logger'
  17 import { VIDEO_LIVE } from '@server/initializers/constants'
  18
  19 async function processVideoLiveEnding (job: Bull.Job) {
  20   const payload = job.data as VideoLiveEndingPayload
  21
  22   function logError () {
  23     logger.warn('Video live %d does not exist anymore. Cannot process live ending.', payload.videoId)
  24   }
  25
  26   const video = await VideoModel.load(payload.videoId)
  27   const live = await VideoLiveModel.loadByVideoId(payload.videoId)
  28
  29   if (!video || !live) {
  30     logError()
  31     return
  32   }
  33
  34   const streamingPlaylist = await VideoStreamingPlaylistModel.loadHLSPlaylistByVideo(video.id)
  35   if (!streamingPlaylist) {
  36     logError()
  37     return
  38   }
  39
  40   if (live.saveReplay !== true) {
  41     return cleanupLive(video, streamingPlaylist)
  42   }
  43
  44   return saveLive(video, live)
  45 }
  46
  47 // ---------------------------------------------------------------------------
  48
  49 export {
  50   processVideoLiveEnding
  51 }
  52
  53 // ---------------------------------------------------------------------------
  54
  55 async function saveLive (video: MVideo, live: MVideoLive) {
  56   const hlsDirectory = getHLSDirectory(video, false)
  57   const replayDirectory = join(hlsDirectory, VIDEO_LIVE.REPLAY_DIRECTORY)
  58
  59   const rootFiles = await readdir(hlsDirectory)
  60
  61   const playlistFiles: string[] = []
  62
  63   for (const file of rootFiles) {
  64     if (file.endsWith('.m3u8') !== true) continue
  65
  66     await move(join(hlsDirectory, file), join(replayDirectory, file))
  67
  68     if (file !== 'master.m3u8') {
  69       playlistFiles.push(file)
  70     }
  71   }
  72
  73   const replayFiles = await readdir(replayDirectory)
  74
  75   const resolutions: number[] = []
  76   let duration: number
  77
  78   for (const playlistFile of playlistFiles) {
  79     const playlistPath = join(replayDirectory, playlistFile)
  80     const { videoFileResolution } = await getVideoFileResolution(playlistPath)
  81
  82     // Put the final mp4 in the hls directory, and not in the replay directory
  83     const mp4TmpPath = buildMP4TmpPath(hlsDirectory, videoFileResolution)
  84
  85     // Playlist name is for example 3.m3u8
  86     // Segments names are 3-0.ts 3-1.ts etc
  87     const shouldStartWith = playlistFile.replace(/\.m3u8$/, '') + '-'
  88
  89     const segmentFiles = replayFiles.filter(f => f.startsWith(shouldStartWith) && f.endsWith('.ts'))
  90     await hlsPlaylistToFragmentedMP4(replayDirectory, segmentFiles, mp4TmpPath)
  91
  92     if (!duration) {
  93       duration = await getDurationFromVideoFile(mp4TmpPath)
  94     }
  95
  96     resolutions.push(videoFileResolution)
  97   }
  98
  99   await cleanupLiveFiles(hlsDirectory)
 100
 101   await live.destroy()
 102
 103   video.isLive = false
 104   // Reinit views
 105   video.views = 0
 106   video.state = VideoState.TO_TRANSCODE
 107   video.duration = duration
 108
 109   await video.save()
 110
 111   // Remove old HLS playlist video files
 112   const videoWithFiles = await VideoModel.loadWithFiles(video.id)
 113
 114   const hlsPlaylist = videoWithFiles.getHLSPlaylist()
 115   await VideoFileModel.removeHLSFilesOfVideoId(hlsPlaylist.id)
 116   hlsPlaylist.VideoFiles = []
 117
 118   for (const resolution of resolutions) {
 119     const videoInputPath = buildMP4TmpPath(hlsDirectory, resolution)
 120     const { isPortraitMode } = await getVideoFileResolution(videoInputPath)
 121
 122     await generateHlsPlaylist({
 123       video: videoWithFiles,
 124       videoInputPath,
 125       resolution: resolution,
 126       copyCodecs: true,
 127       isPortraitMode
 128     })
 129
 130     await remove(videoInputPath)
 131   }
 132
 133   // Regenerate the thumbnail & preview?
 134   if (videoWithFiles.getMiniature().automaticallyGenerated === true) {
 135     await generateVideoMiniature(videoWithFiles, videoWithFiles.getMaxQualityFile(), ThumbnailType.MINIATURE)
 136   }
 137
 138   if (videoWithFiles.getPreview().automaticallyGenerated === true) {
 139     await generateVideoMiniature(videoWithFiles, videoWithFiles.getMaxQualityFile(), ThumbnailType.PREVIEW)
 140   }
 141
 142   await publishAndFederateIfNeeded(video, true)
 143 }
 144
 145 async function cleanupLive (video: MVideo, streamingPlaylist: MStreamingPlaylist) {
 146   const hlsDirectory = getHLSDirectory(video)
 147
 148   await remove(hlsDirectory)
 149
 150   streamingPlaylist.destroy()
 151     .catch(err => logger.error('Cannot remove live streaming playlist.', { err }))
 152 }
 153
 154 async function cleanupLiveFiles (hlsDirectory: string) {
 155   const files = await readdir(hlsDirectory)
 156
 157   for (const filename of files) {
 158     if (
 159       filename.endsWith('.ts') ||
 160       filename.endsWith('.m3u8') ||
 161       filename.endsWith('.mpd') ||
 162       filename.endsWith('.m4s') ||
 163       filename.endsWith('.tmp') ||
 164       filename === VIDEO_LIVE.REPLAY_DIRECTORY
 165     ) {
 166       const p = join(hlsDirectory, filename)
 167
 168       remove(p)
 169         .catch(err => logger.error('Cannot remove %s.', p, { err }))
 170     }
 171   }
 172 }
 173
 174 function buildMP4TmpPath (basePath: string, resolution: number) {
 175   return join(basePath, resolution + '-tmp.mp4')
 176 }