12 files changed, 131 insertions, 94 deletions

diff --git a/server/lib/activitypub/videos/shared/abstract-builder.ts b/server/lib/activitypub/videos/shared/abstract-builder.ts
index e89c94bcd..f995fe637 100644
--- a/server/lib/activitypub/videos/shared/abstract-builder.ts
+++ b/server/lib/activitypub/videos/shared/abstract-builder.ts
@@ -1,6 +1,6 @@
 import { Transaction } from 'sequelize/types'
 import { checkUrlsSameHost } from '@server/helpers/activitypub'
-import { deleteNonExistingModels } from '@server/helpers/database-utils'
+import { deleteAllModels, filterNonExistingModels } from '@server/helpers/database-utils'
 import { logger, LoggerTagsFn } from '@server/helpers/logger'
 import { updatePlaceholderThumbnail, updateVideoMiniatureFromUrl } from '@server/lib/thumbnail'
 import { setVideoTags } from '@server/lib/video'
@@ -111,8 +111,7 @@ export abstract class APVideoAbstractBuilder {
     const newVideoFiles = videoFileAttributes.map(a => new VideoFileModel(a))
 
     // Remove video files that do not exist anymore
-    const destroyTasks = deleteNonExistingModels(video.VideoFiles || [], newVideoFiles, t)
-    await Promise.all(destroyTasks)
+    await deleteAllModels(filterNonExistingModels(video.VideoFiles || [], newVideoFiles), t)
 
     // Update or add other one
     const upsertTasks = newVideoFiles.map(f => VideoFileModel.customUpsert(f, 'video', t))
@@ -124,13 +123,11 @@ export abstract class APVideoAbstractBuilder {
     const newStreamingPlaylists = streamingPlaylistAttributes.map(a => new VideoStreamingPlaylistModel(a))
 
     // Remove video playlists that do not exist anymore
-    const destroyTasks = deleteNonExistingModels(video.VideoStreamingPlaylists || [], newStreamingPlaylists, t)
-    await Promise.all(destroyTasks)
+    await deleteAllModels(filterNonExistingModels(video.VideoStreamingPlaylists || [], newStreamingPlaylists), t)
 
     video.VideoStreamingPlaylists = []
 
     for (const playlistAttributes of streamingPlaylistAttributes) {
-
       const streamingPlaylistModel = await this.insertOrReplaceStreamingPlaylist(playlistAttributes, t)
       streamingPlaylistModel.Video = video
 
@@ -163,8 +160,7 @@ export abstract class APVideoAbstractBuilder {
 
     const newVideoFiles: MVideoFile[] = getFileAttributesFromUrl(playlistModel, tagObjects).map(a => new VideoFileModel(a))
 
-    const destroyTasks = deleteNonExistingModels(oldStreamingPlaylistFiles, newVideoFiles, t)
-    await Promise.all(destroyTasks)
+    await deleteAllModels(filterNonExistingModels(oldStreamingPlaylistFiles, newVideoFiles), t)
 
     // Update or add other one
     const upsertTasks = newVideoFiles.map(f => VideoFileModel.customUpsert(f, 'streaming-playlist', t))
diff --git a/server/lib/activitypub/videos/shared/object-to-model-attributes.ts b/server/lib/activitypub/videos/shared/object-to-model-attributes.ts
index 85548428c..1fa16295d 100644
--- a/server/lib/activitypub/videos/shared/object-to-model-attributes.ts
+++ b/server/lib/activitypub/videos/shared/object-to-model-attributes.ts
@@ -7,10 +7,11 @@ import { logger } from '@server/helpers/logger'
 import { getExtFromMimetype } from '@server/helpers/video'
 import { ACTIVITY_PUB, MIMETYPES, P2P_MEDIA_LOADER_PEER_VERSION, PREVIEWS_SIZE, THUMBNAILS_SIZE } from '@server/initializers/constants'
 import { generateTorrentFileName } from '@server/lib/video-paths'
+import { VideoCaptionModel } from '@server/models/video/video-caption'
 import { VideoFileModel } from '@server/models/video/video-file'
 import { VideoStreamingPlaylistModel } from '@server/models/video/video-streaming-playlist'
 import { FilteredModelAttributes } from '@server/types'
-import { MChannelId, MStreamingPlaylist, MStreamingPlaylistVideo, MVideo, MVideoFile, MVideoId } from '@server/types/models'
+import { isStreamingPlaylist, MChannelId, MStreamingPlaylistVideo, MVideo, MVideoFile, MVideoId } from '@server/types/models'
 import {
   ActivityHashTagObject,
   ActivityMagnetUrlObject,
@@ -23,7 +24,6 @@ import {
   VideoPrivacy,
   VideoStreamingPlaylistType
 } from '@shared/models'
-import { VideoCaptionModel } from '@server/models/video/video-caption'
 
 function getThumbnailFromIcons (videoObject: VideoObject) {
   let validIcons = videoObject.icon.filter(i => i.width > THUMBNAILS_SIZE.minWidth)
@@ -80,8 +80,8 @@ function getFileAttributesFromUrl (
 
     const extname = getExtFromMimetype(MIMETYPES.VIDEO.MIMETYPE_EXT, fileUrl.mediaType)
     const resolution = fileUrl.height
-    const videoId = (videoOrPlaylist as MStreamingPlaylist).playlistUrl ? null : videoOrPlaylist.id
-    const videoStreamingPlaylistId = (videoOrPlaylist as MStreamingPlaylist).playlistUrl ? videoOrPlaylist.id : null
+    const videoId = isStreamingPlaylist(videoOrPlaylist) ? null : videoOrPlaylist.id
+    const videoStreamingPlaylistId = isStreamingPlaylist(videoOrPlaylist) ? videoOrPlaylist.id : null
 
     const attribute = {
       extname,
@@ -130,8 +130,13 @@ function getStreamingPlaylistAttributesFromObject (video: MVideoId, videoObject:
 
     const attribute = {
       type: VideoStreamingPlaylistType.HLS,
+
+      playlistFilename: basename(playlistUrlObject.href),
       playlistUrl: playlistUrlObject.href,
+
+      segmentsSha256Filename: basename(segmentsSha256UrlObject.href),
       segmentsSha256Url: segmentsSha256UrlObject.href,
+
       p2pMediaLoaderInfohashes: VideoStreamingPlaylistModel.buildP2PMediaLoaderInfoHashes(playlistUrlObject.href, files),
       p2pMediaLoaderPeerVersion: P2P_MEDIA_LOADER_PEER_VERSION,
       videoId: video.id,
diff --git a/server/lib/hls.ts b/server/lib/hls.ts
index 212bd095b..32b02bc26 100644
--- a/server/lib/hls.ts
+++ b/server/lib/hls.ts
@@ -1,7 +1,7 @@
 import { close, ensureDir, move, open, outputJSON, pathExists, read, readFile, remove, writeFile } from 'fs-extra'
 import { flatten, uniq } from 'lodash'
 import { basename, dirname, join } from 'path'
-import { MVideoWithFile } from '@server/types/models'
+import { MStreamingPlaylistFilesVideo, MVideoWithFile } from '@server/types/models'
 import { sha256 } from '../helpers/core-utils'
 import { getAudioStreamCodec, getVideoStreamCodec, getVideoStreamSize } from '../helpers/ffprobe-utils'
 import { logger } from '../helpers/logger'
@@ -12,7 +12,7 @@ import { HLS_STREAMING_PLAYLIST_DIRECTORY, P2P_MEDIA_LOADER_PEER_VERSION } from
 import { sequelizeTypescript } from '../initializers/database'
 import { VideoFileModel } from '../models/video/video-file'
 import { VideoStreamingPlaylistModel } from '../models/video/video-streaming-playlist'
-import { getVideoFilePath } from './video-paths'
+import { getHlsResolutionPlaylistFilename, getVideoFilePath } from './video-paths'
 
 async function updateStreamingPlaylistsInfohashesIfNeeded () {
   const playlistsToUpdate = await VideoStreamingPlaylistModel.listByIncorrectPeerVersion()
@@ -22,27 +22,29 @@ async function updateStreamingPlaylistsInfohashesIfNeeded () {
     await sequelizeTypescript.transaction(async t => {
       const videoFiles = await VideoFileModel.listByStreamingPlaylist(playlist.id, t)
 
-      playlist.p2pMediaLoaderInfohashes = VideoStreamingPlaylistModel.buildP2PMediaLoaderInfoHashes(playlist.playlistUrl, videoFiles)
+      playlist.assignP2PMediaLoaderInfoHashes(playlist.Video, videoFiles)
       playlist.p2pMediaLoaderPeerVersion = P2P_MEDIA_LOADER_PEER_VERSION
+
       await playlist.save({ transaction: t })
     })
   }
 }
 
-async function updateMasterHLSPlaylist (video: MVideoWithFile) {
+async function updateMasterHLSPlaylist (video: MVideoWithFile, playlist: MStreamingPlaylistFilesVideo) {
   const directory = join(HLS_STREAMING_PLAYLIST_DIRECTORY, video.uuid)
+
   const masterPlaylists: string[] = [ '#EXTM3U', '#EXT-X-VERSION:3' ]
-  const masterPlaylistPath = join(directory, VideoStreamingPlaylistModel.getMasterHlsPlaylistFilename())
-  const streamingPlaylist = video.getHLSPlaylist()
 
-  for (const file of streamingPlaylist.VideoFiles) {
-    const playlistFilename = VideoStreamingPlaylistModel.getHlsPlaylistFilename(file.resolution)
+  const masterPlaylistPath = join(directory, playlist.playlistFilename)
+
+  for (const file of playlist.VideoFiles) {
+    const playlistFilename = getHlsResolutionPlaylistFilename(file.filename)
 
     // If we did not generated a playlist for this resolution, skip
     const filePlaylistPath = join(directory, playlistFilename)
     if (await pathExists(filePlaylistPath) === false) continue
 
-    const videoFilePath = getVideoFilePath(streamingPlaylist, file)
+    const videoFilePath = getVideoFilePath(playlist, file)
 
     const size = await getVideoStreamSize(videoFilePath)
 
@@ -66,23 +68,22 @@ async function updateMasterHLSPlaylist (video: MVideoWithFile) {
   await writeFile(masterPlaylistPath, masterPlaylists.join('\n') + '\n')
 }
 
-async function updateSha256VODSegments (video: MVideoWithFile) {
+async function updateSha256VODSegments (video: MVideoWithFile, playlist: MStreamingPlaylistFilesVideo) {
   const json: { [filename: string]: { [range: string]: string } } = {}
 
   const playlistDirectory = join(HLS_STREAMING_PLAYLIST_DIRECTORY, video.uuid)
-  const hlsPlaylist = video.getHLSPlaylist()
 
   // For all the resolutions available for this video
-  for (const file of hlsPlaylist.VideoFiles) {
+  for (const file of playlist.VideoFiles) {
     const rangeHashes: { [range: string]: string } = {}
 
-    const videoPath = getVideoFilePath(hlsPlaylist, file)
-    const playlistPath = join(playlistDirectory, VideoStreamingPlaylistModel.getHlsPlaylistFilename(file.resolution))
+    const videoPath = getVideoFilePath(playlist, file)
+    const resolutionPlaylistPath = join(playlistDirectory, getHlsResolutionPlaylistFilename(file.filename))
 
     // Maybe the playlist is not generated for this resolution yet
-    if (!await pathExists(playlistPath)) continue
+    if (!await pathExists(resolutionPlaylistPath)) continue
 
-    const playlistContent = await readFile(playlistPath)
+    const playlistContent = await readFile(resolutionPlaylistPath)
     const ranges = getRangesFromPlaylist(playlistContent.toString())
 
     const fd = await open(videoPath, 'r')
@@ -98,7 +99,7 @@ async function updateSha256VODSegments (video: MVideoWithFile) {
     json[videoFilename] = rangeHashes
   }
 
-  const outputPath = join(playlistDirectory, VideoStreamingPlaylistModel.getHlsSha256SegmentsFilename())
+  const outputPath = join(playlistDirectory, playlist.segmentsSha256Filename)
   await outputJSON(outputPath, json)
 }
 
diff --git a/server/lib/job-queue/handlers/video-file-import.ts b/server/lib/job-queue/handlers/video-file-import.ts
index 1783f206a..4d199f247 100644
--- a/server/lib/job-queue/handlers/video-file-import.ts
+++ b/server/lib/job-queue/handlers/video-file-import.ts
@@ -61,8 +61,7 @@ async function updateVideoFile (video: MVideoFullLight, inputFilePath: string) {
 
   if (currentVideoFile) {
     // Remove old file and old torrent
-    await video.removeFile(currentVideoFile)
-    await currentVideoFile.removeTorrent()
+    await video.removeFileAndTorrent(currentVideoFile)
     // Remove the old video file from the array
     video.VideoFiles = video.VideoFiles.filter(f => f !== currentVideoFile)
 
diff --git a/server/lib/job-queue/handlers/video-live-ending.ts b/server/lib/job-queue/handlers/video-live-ending.ts
index 9eba41bf8..386ccdc7b 100644
--- a/server/lib/job-queue/handlers/video-live-ending.ts
+++ b/server/lib/job-queue/handlers/video-live-ending.ts
@@ -7,12 +7,12 @@ import { buildConcatenatedName, cleanupLive, LiveSegmentShaStore } from '@server
 import { generateVideoMiniature } from '@server/lib/thumbnail'
 import { generateHlsPlaylistResolutionFromTS } from '@server/lib/transcoding/video-transcoding'
 import { publishAndFederateIfNeeded } from '@server/lib/video'
-import { getHLSDirectory } from '@server/lib/video-paths'
+import { generateHLSMasterPlaylistFilename, generateHlsSha256SegmentsFilename, getHLSDirectory } from '@server/lib/video-paths'
 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 { MVideo, MVideoLive } from '@server/types/models'
+import { MStreamingPlaylist, MVideo, MVideoLive } from '@server/types/models'
 import { ThumbnailType, VideoLiveEndingPayload, VideoState } from '@shared/models'
 import { logger } from '../../../helpers/logger'
 
@@ -43,7 +43,7 @@ async function processVideoLiveEnding (job: Bull.Job) {
     return cleanupLive(video, streamingPlaylist)
   }
 
-  return saveLive(video, live)
+  return saveLive(video, live, streamingPlaylist)
 }
 
 // ---------------------------------------------------------------------------
@@ -54,14 +54,14 @@ export {
 
 // ---------------------------------------------------------------------------
 
-async function saveLive (video: MVideo, live: MVideoLive) {
+async function saveLive (video: MVideo, live: MVideoLive, streamingPlaylist: MStreamingPlaylist) {
   const hlsDirectory = getHLSDirectory(video, false)
   const replayDirectory = join(hlsDirectory, VIDEO_LIVE.REPLAY_DIRECTORY)
 
   const rootFiles = await readdir(hlsDirectory)
 
   const playlistFiles = rootFiles.filter(file => {
-    return file.endsWith('.m3u8') && file !== 'master.m3u8'
+    return file.endsWith('.m3u8') && file !== streamingPlaylist.playlistFilename
   })
 
   await cleanupLiveFiles(hlsDirectory)
@@ -80,7 +80,12 @@ async function saveLive (video: MVideo, live: MVideoLive) {
 
   const hlsPlaylist = videoWithFiles.getHLSPlaylist()
   await VideoFileModel.removeHLSFilesOfVideoId(hlsPlaylist.id)
+
+  // Reset playlist
   hlsPlaylist.VideoFiles = []
+  hlsPlaylist.playlistFilename = generateHLSMasterPlaylistFilename()
+  hlsPlaylist.segmentsSha256Filename = generateHlsSha256SegmentsFilename()
+  await hlsPlaylist.save()
 
   let durationDone = false
 
diff --git a/server/lib/job-queue/handlers/video-transcoding.ts b/server/lib/job-queue/handlers/video-transcoding.ts
index f5ba6f435..36d9594af 100644
--- a/server/lib/job-queue/handlers/video-transcoding.ts
+++ b/server/lib/job-queue/handlers/video-transcoding.ts
@@ -125,8 +125,7 @@ async function onHlsPlaylistGeneration (video: MVideoFullLight, user: MUser, pay
   if (payload.isMaxQuality && CONFIG.TRANSCODING.WEBTORRENT.ENABLED === false) {
     // Remove webtorrent files if not enabled
     for (const file of video.VideoFiles) {
-      await video.removeFile(file)
-      await file.removeTorrent()
+      await video.removeFileAndTorrent(file)
       await file.destroy()
     }
 
diff --git a/server/lib/live/live-manager.ts b/server/lib/live/live-manager.ts
index da764e009..f106d69fb 100644
--- a/server/lib/live/live-manager.ts
+++ b/server/lib/live/live-manager.ts
@@ -4,16 +4,17 @@ import { isTestInstance } from '@server/helpers/core-utils'
 import { computeResolutionsToTranscode, getVideoFileFPS, getVideoFileResolution } from '@server/helpers/ffprobe-utils'
 import { logger, loggerTagsFactory } from '@server/helpers/logger'
 import { CONFIG, registerConfigChangedHandler } from '@server/initializers/config'
-import { P2P_MEDIA_LOADER_PEER_VERSION, VIDEO_LIVE, VIEW_LIFETIME, WEBSERVER } from '@server/initializers/constants'
+import { P2P_MEDIA_LOADER_PEER_VERSION, VIDEO_LIVE, VIEW_LIFETIME } from '@server/initializers/constants'
 import { UserModel } from '@server/models/user/user'
 import { VideoModel } from '@server/models/video/video'
 import { VideoLiveModel } from '@server/models/video/video-live'
 import { VideoStreamingPlaylistModel } from '@server/models/video/video-streaming-playlist'
-import { MStreamingPlaylist, MStreamingPlaylistVideo, MVideo, MVideoLiveVideo } from '@server/types/models'
+import { MStreamingPlaylistVideo, MVideo, MVideoLiveVideo } from '@server/types/models'
 import { VideoState, VideoStreamingPlaylistType } from '@shared/models'
 import { federateVideoIfNeeded } from '../activitypub/videos'
 import { JobQueue } from '../job-queue'
 import { PeerTubeSocket } from '../peertube-socket'
+import { generateHLSMasterPlaylistFilename, generateHlsSha256SegmentsFilename } from '../video-paths'
 import { LiveQuotaStore } from './live-quota-store'
 import { LiveSegmentShaStore } from './live-segment-sha-store'
 import { cleanupLive } from './live-utils'
@@ -392,19 +393,18 @@ class LiveManager {
     return resolutionsEnabled.concat([ originResolution ])
   }
 
-  private async createLivePlaylist (video: MVideo, allResolutions: number[]) {
-    const playlistUrl = WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsMasterPlaylistStaticPath(video.uuid)
-    const [ videoStreamingPlaylist ] = await VideoStreamingPlaylistModel.upsert({
-      videoId: video.id,
-      playlistUrl,
-      segmentsSha256Url: WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsSha256SegmentsStaticPath(video.uuid, video.isLive),
-      p2pMediaLoaderInfohashes: VideoStreamingPlaylistModel.buildP2PMediaLoaderInfoHashes(playlistUrl, allResolutions),
-      p2pMediaLoaderPeerVersion: P2P_MEDIA_LOADER_PEER_VERSION,
+  private async createLivePlaylist (video: MVideo, allResolutions: number[]): Promise<MStreamingPlaylistVideo> {
+    const playlist = await VideoStreamingPlaylistModel.loadOrGenerate(video)
 
-      type: VideoStreamingPlaylistType.HLS
-    }, { returning: true }) as [ MStreamingPlaylist, boolean ]
+    playlist.playlistFilename = generateHLSMasterPlaylistFilename(true)
+    playlist.segmentsSha256Filename = generateHlsSha256SegmentsFilename(true)
 
-    return Object.assign(videoStreamingPlaylist, { Video: video })
+    playlist.p2pMediaLoaderPeerVersion = P2P_MEDIA_LOADER_PEER_VERSION
+    playlist.type = VideoStreamingPlaylistType.HLS
+
+    playlist.assignP2PMediaLoaderInfoHashes(video, allResolutions)
+
+    return playlist.save()
   }
 
   static get Instance () {
diff --git a/server/lib/live/shared/muxing-session.ts b/server/lib/live/shared/muxing-session.ts
index 26467f060..709d6c615 100644
--- a/server/lib/live/shared/muxing-session.ts
+++ b/server/lib/live/shared/muxing-session.ts
@@ -112,13 +112,16 @@ class MuxingSession extends EventEmitter {
     this.ffmpegCommand = CONFIG.LIVE.TRANSCODING.ENABLED
       ? await getLiveTranscodingCommand({
         rtmpUrl: this.rtmpUrl,
+
         outPath,
+        masterPlaylistName: this.streamingPlaylist.playlistFilename,
+
         resolutions: this.allResolutions,
         fps: this.fps,
         availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
         profile: CONFIG.LIVE.TRANSCODING.PROFILE
       })
-      : getLiveMuxingCommand(this.rtmpUrl, outPath)
+      : getLiveMuxingCommand(this.rtmpUrl, outPath, this.streamingPlaylist.playlistFilename)
 
     logger.info('Running live muxing/transcoding for %s.', this.videoUUID, this.lTags)
 
@@ -182,7 +185,7 @@ class MuxingSession extends EventEmitter {
   }
 
   private watchMasterFile (outPath: string) {
-    this.masterWatcher = chokidar.watch(outPath + '/master.m3u8')
+    this.masterWatcher = chokidar.watch(outPath + '/' + this.streamingPlaylist.playlistFilename)
 
     this.masterWatcher.on('add', async () => {
       this.emit('master-playlist-created', { videoId: this.videoId })
diff --git a/server/lib/schedulers/videos-redundancy-scheduler.ts b/server/lib/schedulers/videos-redundancy-scheduler.ts
index b5a5eb697..103ab1fab 100644
--- a/server/lib/schedulers/videos-redundancy-scheduler.ts
+++ b/server/lib/schedulers/videos-redundancy-scheduler.ts
@@ -267,7 +267,8 @@ export class VideosRedundancyScheduler extends AbstractScheduler {
     logger.info('Duplicating %s streaming playlist in videos redundancy with "%s" strategy.', video.url, strategy)
 
     const destDirectory = join(HLS_REDUNDANCY_DIRECTORY, video.uuid)
-    await downloadPlaylistSegments(playlist.playlistUrl, destDirectory, VIDEO_IMPORT_TIMEOUT)
+    const masterPlaylistUrl = playlist.getMasterPlaylistUrl(video)
+    await downloadPlaylistSegments(masterPlaylistUrl, destDirectory, VIDEO_IMPORT_TIMEOUT)
 
     const createdModel: MVideoRedundancyStreamingPlaylistVideo = await VideoRedundancyModel.create({
       expiresOn,
@@ -282,7 +283,7 @@ export class VideosRedundancyScheduler extends AbstractScheduler {
 
     await sendCreateCacheFile(serverActor, video, createdModel)
 
-    logger.info('Duplicated playlist %s -> %s.', playlist.playlistUrl, createdModel.url)
+    logger.info('Duplicated playlist %s -> %s.', masterPlaylistUrl, createdModel.url)
   }
 
   private async extendsExpirationOf (redundancy: MVideoRedundancyVideo, expiresAfterMs: number) {
@@ -330,7 +331,7 @@ export class VideosRedundancyScheduler extends AbstractScheduler {
   private buildEntryLogId (object: MVideoRedundancyFileVideo | MVideoRedundancyStreamingPlaylistVideo) {
     if (isMVideoRedundancyFileVideo(object)) return `${object.VideoFile.Video.url}-${object.VideoFile.resolution}`
 
-    return `${object.VideoStreamingPlaylist.playlistUrl}`
+    return `${object.VideoStreamingPlaylist.getMasterPlaylistUrl(object.VideoStreamingPlaylist.Video)}`
   }
 
   private getTotalFileSizes (files: MVideoFile[], playlists: MStreamingPlaylistFiles[]) {
diff --git a/server/lib/transcoding/video-transcoding.ts b/server/lib/transcoding/video-transcoding.ts
index d70f7f474..d2a556360 100644
--- a/server/lib/transcoding/video-transcoding.ts
+++ b/server/lib/transcoding/video-transcoding.ts
@@ -10,11 +10,18 @@ import { transcode, TranscodeOptions, TranscodeOptionsType } from '../../helpers
 import { canDoQuickTranscode, getDurationFromVideoFile, getMetadataFromFile, getVideoFileFPS } from '../../helpers/ffprobe-utils'
 import { logger } from '../../helpers/logger'
 import { CONFIG } from '../../initializers/config'
-import { HLS_STREAMING_PLAYLIST_DIRECTORY, P2P_MEDIA_LOADER_PEER_VERSION, WEBSERVER } from '../../initializers/constants'
+import { HLS_STREAMING_PLAYLIST_DIRECTORY, P2P_MEDIA_LOADER_PEER_VERSION } from '../../initializers/constants'
 import { VideoFileModel } from '../../models/video/video-file'
 import { VideoStreamingPlaylistModel } from '../../models/video/video-streaming-playlist'
 import { updateMasterHLSPlaylist, updateSha256VODSegments } from '../hls'
-import { generateHLSVideoFilename, generateWebTorrentVideoFilename, getVideoFilePath } from '../video-paths'
+import {
+  generateHLSMasterPlaylistFilename,
+  generateHlsSha256SegmentsFilename,
+  generateHLSVideoFilename,
+  generateWebTorrentVideoFilename,
+  getHlsResolutionPlaylistFilename,
+  getVideoFilePath
+} from '../video-paths'
 import { VideoTranscodingProfilesManager } from './video-transcoding-profiles'
 
 /**
@@ -272,14 +279,14 @@ async function generateHlsPlaylistCommon (options: {
   await ensureDir(videoTranscodedBasePath)
 
   const videoFilename = generateHLSVideoFilename(resolution)
-  const playlistFilename = VideoStreamingPlaylistModel.getHlsPlaylistFilename(resolution)
-  const playlistFileTranscodePath = join(videoTranscodedBasePath, playlistFilename)
+  const resolutionPlaylistFilename = getHlsResolutionPlaylistFilename(videoFilename)
+  const resolutionPlaylistFileTranscodePath = join(videoTranscodedBasePath, resolutionPlaylistFilename)
 
   const transcodeOptions = {
     type,
 
     inputPath,
-    outputPath: playlistFileTranscodePath,
+    outputPath: resolutionPlaylistFileTranscodePath,
 
     availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
     profile: CONFIG.TRANSCODING.PROFILE,
@@ -299,19 +306,23 @@ async function generateHlsPlaylistCommon (options: {
 
   await transcode(transcodeOptions)
 
-  const playlistUrl = WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsMasterPlaylistStaticPath(video.uuid)
-
   // Create or update the playlist
-  const [ videoStreamingPlaylist ] = await VideoStreamingPlaylistModel.upsert({
-    videoId: video.id,
-    playlistUrl,
-    segmentsSha256Url: WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsSha256SegmentsStaticPath(video.uuid, video.isLive),
-    p2pMediaLoaderInfohashes: [],
-    p2pMediaLoaderPeerVersion: P2P_MEDIA_LOADER_PEER_VERSION,
+  const playlist = await VideoStreamingPlaylistModel.loadOrGenerate(video)
+
+  if (!playlist.playlistFilename) {
+    playlist.playlistFilename = generateHLSMasterPlaylistFilename(video.isLive)
+  }
+
+  if (!playlist.segmentsSha256Filename) {
+    playlist.segmentsSha256Filename = generateHlsSha256SegmentsFilename(video.isLive)
+  }
+
+  playlist.p2pMediaLoaderInfohashes = []
+  playlist.p2pMediaLoaderPeerVersion = P2P_MEDIA_LOADER_PEER_VERSION
 
-    type: VideoStreamingPlaylistType.HLS
-  }, { returning: true }) as [ MStreamingPlaylistFilesVideo, boolean ]
-  videoStreamingPlaylist.Video = video
+  playlist.type = VideoStreamingPlaylistType.HLS
+
+  await playlist.save()
 
   // Build the new playlist file
   const extname = extnameUtil(videoFilename)
@@ -321,18 +332,18 @@ async function generateHlsPlaylistCommon (options: {
     size: 0,
     filename: videoFilename,
     fps: -1,
-    videoStreamingPlaylistId: videoStreamingPlaylist.id
+    videoStreamingPlaylistId: playlist.id
   })
 
-  const videoFilePath = getVideoFilePath(videoStreamingPlaylist, newVideoFile)
+  const videoFilePath = getVideoFilePath(playlist, newVideoFile)
 
   // Move files from tmp transcoded directory to the appropriate place
   const baseHlsDirectory = join(HLS_STREAMING_PLAYLIST_DIRECTORY, video.uuid)
   await ensureDir(baseHlsDirectory)
 
   // Move playlist file
-  const playlistPath = join(baseHlsDirectory, playlistFilename)
-  await move(playlistFileTranscodePath, playlistPath, { overwrite: true })
+  const resolutionPlaylistPath = join(baseHlsDirectory, resolutionPlaylistFilename)
+  await move(resolutionPlaylistFileTranscodePath, resolutionPlaylistPath, { overwrite: true })
   // Move video file
   await move(join(videoTranscodedBasePath, videoFilename), videoFilePath, { overwrite: true })
 
@@ -342,20 +353,20 @@ async function generateHlsPlaylistCommon (options: {
   newVideoFile.fps = await getVideoFileFPS(videoFilePath)
   newVideoFile.metadata = await getMetadataFromFile(videoFilePath)
 
-  await createTorrentAndSetInfoHash(videoStreamingPlaylist, newVideoFile)
+  await createTorrentAndSetInfoHash(playlist, newVideoFile)
 
   await VideoFileModel.customUpsert(newVideoFile, 'streaming-playlist', undefined)
-  videoStreamingPlaylist.VideoFiles = await videoStreamingPlaylist.$get('VideoFiles')
 
-  videoStreamingPlaylist.p2pMediaLoaderInfohashes = VideoStreamingPlaylistModel.buildP2PMediaLoaderInfoHashes(
-    playlistUrl, videoStreamingPlaylist.VideoFiles
-  )
-  await videoStreamingPlaylist.save()
+  const playlistWithFiles = playlist as MStreamingPlaylistFilesVideo
+  playlistWithFiles.VideoFiles = await playlist.$get('VideoFiles')
+  playlist.assignP2PMediaLoaderInfoHashes(video, playlistWithFiles.VideoFiles)
+
+  await playlist.save()
 
-  video.setHLSPlaylist(videoStreamingPlaylist)
+  video.setHLSPlaylist(playlist)
 
-  await updateMasterHLSPlaylist(video)
-  await updateSha256VODSegments(video)
+  await updateMasterHLSPlaylist(video, playlistWithFiles)
+  await updateSha256VODSegments(video, playlistWithFiles)
 
-  return playlistPath
+  return resolutionPlaylistPath
 }
diff --git a/server/lib/video-paths.ts b/server/lib/video-paths.ts
index b7068190c..1e4382108 100644
--- a/server/lib/video-paths.ts
+++ b/server/lib/video-paths.ts
@@ -4,19 +4,16 @@ import { CONFIG } from '@server/initializers/config'
 import { HLS_REDUNDANCY_DIRECTORY, HLS_STREAMING_PLAYLIST_DIRECTORY, STATIC_PATHS, WEBSERVER } from '@server/initializers/constants'
 import { isStreamingPlaylist, MStreamingPlaylist, MStreamingPlaylistVideo, MVideo, MVideoFile, MVideoUUID } from '@server/types/models'
 import { buildUUID } from '@server/helpers/uuid'
+import { removeFragmentedMP4Ext } from '@shared/core-utils'
 
 // ################## Video file name ##################
 
 function generateWebTorrentVideoFilename (resolution: number, extname: string) {
-  const uuid = buildUUID()
-
-  return uuid + '-' + resolution + extname
+  return buildUUID() + '-' + resolution + extname
 }
 
 function generateHLSVideoFilename (resolution: number) {
-  const uuid = buildUUID()
-
-  return `${uuid}-${resolution}-fragmented.mp4`
+  return `${buildUUID()}-${resolution}-fragmented.mp4`
 }
 
 function getVideoFilePath (videoOrPlaylist: MVideo | MStreamingPlaylistVideo, videoFile: MVideoFile, isRedundancy = false) {
@@ -54,6 +51,23 @@ function getHLSDirectory (video: MVideoUUID, isRedundancy = false) {
   return join(baseDir, video.uuid)
 }
 
+function getHlsResolutionPlaylistFilename (videoFilename: string) {
+  // Video file name already contain resolution
+  return removeFragmentedMP4Ext(videoFilename) + '.m3u8'
+}
+
+function generateHLSMasterPlaylistFilename (isLive = false) {
+  if (isLive) return 'master.m3u8'
+
+  return buildUUID() + '-master.m3u8'
+}
+
+function generateHlsSha256SegmentsFilename (isLive = false) {
+  if (isLive) return 'segments-sha256.json'
+
+  return buildUUID() + '-segments-sha256.json'
+}
+
 // ################## Torrents ##################
 
 function generateTorrentFileName (videoOrPlaylist: MVideo | MStreamingPlaylistVideo, resolution: number) {
@@ -91,6 +105,9 @@ export {
   getTorrentFilePath,
 
   getHLSDirectory,
+  generateHLSMasterPlaylistFilename,
+  generateHlsSha256SegmentsFilename,
+  getHlsResolutionPlaylistFilename,
 
   getLocalVideoFileMetadataUrl,
 
diff --git a/server/lib/video.ts b/server/lib/video.ts
index daf998704..61fee4949 100644
--- a/server/lib/video.ts
+++ b/server/lib/video.ts
@@ -5,7 +5,7 @@ import { sequelizeTypescript } from '@server/initializers/database'
 import { TagModel } from '@server/models/video/tag'
 import { VideoModel } from '@server/models/video/video'
 import { FilteredModelAttributes } from '@server/types'
-import { MThumbnail, MUserId, MVideo, MVideoFile, MVideoTag, MVideoThumbnail, MVideoUUID } from '@server/types/models'
+import { MThumbnail, MUserId, MVideoFile, MVideoTag, MVideoThumbnail, MVideoUUID } from '@server/types/models'
 import { ThumbnailType, VideoCreate, VideoPrivacy, VideoTranscodingPayload } from '@shared/models'
 import { federateVideoIfNeeded } from './activitypub/videos'
 import { JobQueue } from './job-queue/job-queue'
@@ -105,7 +105,7 @@ async function publishAndFederateIfNeeded (video: MVideoUUID, wasLive = false) {
   }
 }
 
-async function addOptimizeOrMergeAudioJob (video: MVideo, videoFile: MVideoFile, user: MUserId) {
+async function addOptimizeOrMergeAudioJob (video: MVideoUUID, videoFile: MVideoFile, user: MUserId) {
   let dataInput: VideoTranscodingPayload
 
   if (videoFile.isAudio()) {