Implement video transcoding on server side

19 files changed, 344 insertions, 128 deletions

diff --git a/config/default.yaml b/config/default.yaml
index 4c19a5b2d..b53fa0d5b 100644
--- a/config/default.yaml
+++ b/config/default.yaml
@@ -41,7 +41,14 @@ user:
   video_quota: -1
 
 # If enabled, the video will be transcoded to mp4 (x264) with "faststart" flag
-# Uses a lot of CPU!
+# In addition, if some resolutions are enabled the mp4 video file will be transcoded to these new resolutions.
+# Uses a lot of CPU and increases storage!
 transcoding:
   enabled: false
   threads: 2
+  resolutions: # Only created if the original video has a higher resolution
+    240p: true
+    360p: true
+    480p: true
+    720p: true
+    1080p: true
diff --git a/server/controllers/api/videos/index.ts b/server/controllers/api/videos/index.ts
index 6fa84c801..14c969ec3 100644
--- a/server/controllers/api/videos/index.ts
+++ b/server/controllers/api/videos/index.ts
@@ -39,13 +39,12 @@ import {
   getFormattedObjects,
   renamePromise
 } from '../../../helpers'
-import { TagInstance } from '../../../models'
-import { VideoCreate, VideoUpdate } from '../../../../shared'
+import { TagInstance, VideoInstance } from '../../../models'
+import { VideoCreate, VideoUpdate, VideoResolution } from '../../../../shared'
 
 import { abuseVideoRouter } from './abuse'
 import { blacklistRouter } from './blacklist'
 import { rateVideoRouter } from './rate'
-import { VideoInstance } from '../../../models/video/video-interface'
 
 const videosRouter = express.Router()
 
@@ -195,7 +194,7 @@ function addVideo (req: express.Request, res: express.Response, videoPhysicalFil
       .then(({ author, tagInstances, video }) => {
         const videoFileData = {
           extname: extname(videoPhysicalFile.filename),
-          resolution: 0, // TODO: improve readability,
+          resolution: VideoResolution.ORIGINAL,
           size: videoPhysicalFile.size
         }
 
@@ -230,7 +229,7 @@ function addVideo (req: express.Request, res: express.Response, videoPhysicalFil
           }
 
           tasks.push(
-            JobScheduler.Instance.createJob(t, 'videoTranscoder', dataInput)
+            JobScheduler.Instance.createJob(t, 'videoFileOptimizer', dataInput)
           )
         }
 
diff --git a/server/helpers/core-utils.ts b/server/helpers/core-utils.ts
index 2ec7e6515..3118dc500 100644
--- a/server/helpers/core-utils.ts
+++ b/server/helpers/core-utils.ts
@@ -11,7 +11,9 @@ import {
   rename,
   unlink,
   writeFile,
-  access
+  access,
+  stat,
+  Stats
 } from 'fs'
 import * as mkdirp from 'mkdirp'
 import * as bcrypt from 'bcrypt'
@@ -92,6 +94,7 @@ const bcryptGenSaltPromise = promisify1<number, string>(bcrypt.genSalt)
 const bcryptHashPromise = promisify2<any, string|number, string>(bcrypt.hash)
 const createTorrentPromise = promisify2<string, any, any>(createTorrent)
 const rimrafPromise = promisify1WithVoid<string>(rimraf)
+const statPromise = promisify1<string, Stats>(stat)
 
 // ---------------------------------------------------------------------------
 
@@ -115,5 +118,6 @@ export {
   bcryptGenSaltPromise,
   bcryptHashPromise,
   createTorrentPromise,
-  rimrafPromise
+  rimrafPromise,
+  statPromise
 }
diff --git a/server/helpers/utils.ts b/server/helpers/utils.ts
index ce07ceff9..b74442ab0 100644
--- a/server/helpers/utils.ts
+++ b/server/helpers/utils.ts
@@ -4,6 +4,7 @@ import * as Promise from 'bluebird'
 import { pseudoRandomBytesPromise } from './core-utils'
 import { CONFIG, database as db } from '../initializers'
 import { ResultList } from '../../shared'
+import { VideoResolution } from '../../shared/models/videos/video-resolution.enum'
 
 function badRequest (req: express.Request, res: express.Response, next: express.NextFunction) {
   res.type('json').status(400).end()
@@ -13,11 +14,11 @@ function generateRandomString (size: number) {
   return pseudoRandomBytesPromise(size).then(raw => raw.toString('hex'))
 }
 
-interface FormatableToJSON {
+interface FormattableToJSON {
   toFormattedJSON ()
 }
 
-function getFormattedObjects<U, T extends FormatableToJSON> (objects: T[], objectsTotal: number) {
+function getFormattedObjects<U, T extends FormattableToJSON> (objects: T[], objectsTotal: number) {
   const formattedObjects: U[] = []
 
   objects.forEach(object => {
@@ -47,6 +48,27 @@ function isSignupAllowed () {
   })
 }
 
+function computeResolutionsToTranscode (videoFileHeight: number) {
+  const resolutionsEnabled: number[] = []
+  const configResolutions = CONFIG.TRANSCODING.RESOLUTIONS
+
+  const resolutions = [
+    VideoResolution.H_240P,
+    VideoResolution.H_360P,
+    VideoResolution.H_480P,
+    VideoResolution.H_720P,
+    VideoResolution.H_1080P
+  ]
+
+  for (const resolution of resolutions) {
+    if (configResolutions[resolution.toString()] === true && videoFileHeight >= resolution) {
+      resolutionsEnabled.push(resolution)
+    }
+  }
+
+  return resolutionsEnabled
+}
+
 type SortType = { sortModel: any, sortValue: string }
 
 // ---------------------------------------------------------------------------
@@ -56,5 +78,6 @@ export {
   generateRandomString,
   getFormattedObjects,
   isSignupAllowed,
+  computeResolutionsToTranscode,
   SortType
 }
diff --git a/server/initializers/constants.ts b/server/initializers/constants.ts
index 54e91d35d..073fabd27 100644
--- a/server/initializers/constants.ts
+++ b/server/initializers/constants.ts
@@ -10,7 +10,8 @@ import {
   RequestEndpoint,
   RequestVideoEventType,
   RequestVideoQaduType,
-  JobState
+  JobState,
+  VideoResolution
 } from '../../shared/models'
 
 // ---------------------------------------------------------------------------
@@ -85,7 +86,14 @@ const CONFIG = {
   },
   TRANSCODING: {
     ENABLED: config.get<boolean>('transcoding.enabled'),
-    THREADS: config.get<number>('transcoding.threads')
+    THREADS: config.get<number>('transcoding.threads'),
+    RESOLUTIONS: {
+      '240' : config.get<boolean>('transcoding.resolutions.240p'),
+      '360': config.get<boolean>('transcoding.resolutions.360p'),
+      '480': config.get<boolean>('transcoding.resolutions.480p'),
+      '720': config.get<boolean>('transcoding.resolutions.720p'),
+      '1080': config.get<boolean>('transcoding.resolutions.1080p')
+    }
   },
   CACHE: {
     PREVIEWS: {
@@ -144,7 +152,7 @@ const VIDEO_CATEGORIES = {
   9: 'Comedy',
   10: 'Entertainment',
   11: 'News',
-  12: 'Howto',
+  12: 'How To',
   13: 'Education',
   14: 'Activism',
   15: 'Science & Technology',
@@ -179,15 +187,17 @@ const VIDEO_LANGUAGES = {
   11: 'German',
   12: 'Korean',
   13: 'French',
-  14: 'Italien'
+  14: 'Italian'
 }
 
-const VIDEO_FILE_RESOLUTIONS = {
+// TODO: use VideoResolution when https://github.com/Microsoft/TypeScript/issues/13042 is fixed
+const VIDEO_FILE_RESOLUTIONS: { [ id: number ]: string } = {
   0: 'original',
-  1: '360p',
-  2: '480p',
-  3: '720p',
-  4: '1080p'
+  240: '240p',
+  360: '360p',
+  480: '480p',
+  720: '720p',
+  1080: '1080p'
 }
 
 // ---------------------------------------------------------------------------
@@ -202,7 +212,7 @@ const FRIEND_SCORE = {
 
 // Number of points we add/remove from a friend after a successful/bad request
 const PODS_SCORE = {
-  MALUS: -10,
+  PENALTY: -10,
   BONUS: 10
 }
 
diff --git a/server/lib/jobs/handlers/index.ts b/server/lib/jobs/handlers/index.ts
index 8abddae35..5941427a1 100644
--- a/server/lib/jobs/handlers/index.ts
+++ b/server/lib/jobs/handlers/index.ts
@@ -1,4 +1,5 @@
-import * as videoTranscoder from './video-transcoder'
+import * as videoFileOptimizer from './video-file-optimizer'
+import * as videoFileTranscoder from './video-file-transcoder'
 
 export interface JobHandler<T> {
   process (data: object): T
@@ -7,7 +8,8 @@ export interface JobHandler<T> {
 }
 
 const jobHandlers: { [ handlerName: string ]: JobHandler<any> } = {
-  videoTranscoder
+  videoFileOptimizer,
+  videoFileTranscoder
 }
 
 export {
diff --git a/server/lib/jobs/handlers/video-file-optimizer.ts b/server/lib/jobs/handlers/video-file-optimizer.ts
new file mode 100644
index 000000000..a87ce52dc
--- /dev/null
+++ b/server/lib/jobs/handlers/video-file-optimizer.ts
@@ -0,0 +1,78 @@
+import * as Promise from 'bluebird'
+
+import { database as db } from '../../../initializers/database'
+import { logger, computeResolutionsToTranscode } from '../../../helpers'
+import { VideoInstance } from '../../../models'
+import { addVideoToFriends } from '../../friends'
+import { JobScheduler } from '../job-scheduler'
+
+function process (data: { videoUUID: string }) {
+  return db.Video.loadByUUIDAndPopulateAuthorAndPodAndTags(data.videoUUID).then(video => {
+    return video.optimizeOriginalVideofile().then(() => video)
+  })
+}
+
+function onError (err: Error, jobId: number) {
+  logger.error('Error when optimized video file in job %d.', jobId, err)
+  return Promise.resolve()
+}
+
+function onSuccess (jobId: number, video: VideoInstance) {
+  logger.info('Job %d is a success.', jobId)
+
+  video.toAddRemoteJSON()
+    .then(remoteVideo => {
+      // Now we'll add the video's meta data to our friends
+      return addVideoToFriends(remoteVideo, null)
+    })
+    .then(() => {
+      return video.getOriginalFileHeight()
+    })
+    .then(originalFileHeight => {
+      // Create transcoding jobs if there are enabled resolutions
+      const resolutionsEnabled = computeResolutionsToTranscode(originalFileHeight)
+      logger.info(
+        'Resolutions computed for video %s and origin file height of %d.', video.uuid, originalFileHeight,
+        { resolutions: resolutionsEnabled }
+      )
+
+      if (resolutionsEnabled.length === 0) return undefined
+
+      return db.sequelize.transaction(t => {
+        const tasks: Promise<any>[] = []
+
+        resolutionsEnabled.forEach(resolution => {
+          const dataInput = {
+            videoUUID: video.uuid,
+            resolution
+          }
+
+          const p = JobScheduler.Instance.createJob(t, 'videoFileTranscoder', dataInput)
+          tasks.push(p)
+        })
+
+        return Promise.all(tasks).then(() => resolutionsEnabled)
+      })
+    })
+    .then(resolutionsEnabled => {
+      if (resolutionsEnabled === undefined) {
+        logger.info('No transcoding jobs created for video %s (no resolutions enabled).')
+        return undefined
+      }
+
+      logger.info('Transcoding jobs created for uuid %s.', video.uuid, { resolutionsEnabled })
+    })
+    .catch((err: Error) => {
+      logger.debug('Cannot transcode the video.', err)
+      throw err
+    })
+
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  process,
+  onError,
+  onSuccess
+}
diff --git a/server/lib/jobs/handlers/video-transcoder.ts b/server/lib/jobs/handlers/video-file-transcoder.ts
index 87d8ffa6a..0e45b4dca 100644
--- a/server/lib/jobs/handlers/video-transcoder.ts
+++ b/server/lib/jobs/handlers/video-file-transcoder.ts
@@ -1,13 +1,12 @@
 import { database as db } from '../../../initializers/database'
+import { updateVideoToFriends } from '../../friends'
 import { logger } from '../../../helpers'
-import { addVideoToFriends } from '../../../lib'
 import { VideoInstance } from '../../../models'
+import { VideoResolution } from '../../../../shared'
 
-function process (data: { videoUUID: string }) {
+function process (data: { videoUUID: string, resolution: VideoResolution }) {
   return db.Video.loadByUUIDAndPopulateAuthorAndPodAndTags(data.videoUUID).then(video => {
-    // TODO: handle multiple resolutions
-    const videoFile = video.VideoFiles[0]
-    return video.transcodeVideofile(videoFile).then(() => video)
+    return video.transcodeOriginalVideofile(data.resolution).then(() => video)
   })
 }
 
@@ -19,10 +18,10 @@ function onError (err: Error, jobId: number) {
 function onSuccess (jobId: number, video: VideoInstance) {
   logger.info('Job %d is a success.', jobId)
 
-  video.toAddRemoteJSON().then(remoteVideo => {
-    // Now we'll add the video's meta data to our friends
-    return addVideoToFriends(remoteVideo, null)
-  })
+  const remoteVideo = video.toUpdateRemoteJSON()
+
+  // Now we'll add the video's meta data to our friends
+  return updateVideoToFriends(remoteVideo, null)
 }
 
 // ---------------------------------------------------------------------------
diff --git a/server/models/pod/pod.ts b/server/models/pod/pod.ts
index df6412721..1440ac9b4 100644
--- a/server/models/pod/pod.ts
+++ b/server/models/pod/pod.ts
@@ -219,7 +219,7 @@ updatePodsScore = function (goodPods: number[], badPods: number[]) {
   }
 
   if (badPods.length !== 0) {
-    incrementScores(badPods, PODS_SCORE.MALUS)
+    incrementScores(badPods, PODS_SCORE.PENALTY)
       .then(() => removeBadPods())
       .catch(err => {
         if (err) logger.error('Cannot decrement scores of bad pods.', err)
diff --git a/server/models/user/user.ts b/server/models/user/user.ts
index 79a595528..7a21dbefa 100644
--- a/server/models/user/user.ts
+++ b/server/models/user/user.ts
@@ -12,6 +12,7 @@ import {
   isUserDisplayNSFWValid,
   isUserVideoQuotaValid
 } from '../../helpers'
+import { VideoResolution } from '../../../shared'
 
 import { addMethodsToModel } from '../utils'
 import {
@@ -245,7 +246,7 @@ function getOriginalVideoFileTotalFromUser (user: UserInstance) {
   // attributes = [] because we don't want other fields than the sum
   const query = {
     where: {
-      resolution: 0 // Original, TODO: improve readability
+      resolution: VideoResolution.ORIGINAL
     },
     include: [
       {
diff --git a/server/models/video/video-interface.ts b/server/models/video/video-interface.ts
index fb31c6a8f..340426f45 100644
--- a/server/models/video/video-interface.ts
+++ b/server/models/video/video-interface.ts
@@ -7,60 +7,17 @@ import { VideoFileAttributes, VideoFileInstance } from './video-file-interface'
 
 // Don't use barrel, import just what we need
 import { Video as FormattedVideo } from '../../../shared/models/videos/video.model'
+import { RemoteVideoUpdateData } from '../../../shared/models/pods/remote-video/remote-video-update-request.model'
+import { RemoteVideoCreateData } from '../../../shared/models/pods/remote-video/remote-video-create-request.model'
 import { ResultList } from '../../../shared/models/result-list.model'
 
-export type FormattedRemoteVideoFile = {
-  infoHash: string
-  resolution: number
-  extname: string
-  size: number
-}
-
-export type FormattedAddRemoteVideo = {
-  uuid: string
-  name: string
-  category: number
-  licence: number
-  language: number
-  nsfw: boolean
-  description: string
-  author: string
-  duration: number
-  thumbnailData: string
-  tags: string[]
-  createdAt: Date
-  updatedAt: Date
-  views: number
-  likes: number
-  dislikes: number
-  files: FormattedRemoteVideoFile[]
-}
-
-export type FormattedUpdateRemoteVideo = {
-  uuid: string
-  name: string
-  category: number
-  licence: number
-  language: number
-  nsfw: boolean
-  description: string
-  author: string
-  duration: number
-  tags: string[]
-  createdAt: Date
-  updatedAt: Date
-  views: number
-  likes: number
-  dislikes: number
-  files: FormattedRemoteVideoFile[]
-}
-
 export namespace VideoMethods {
   export type GetThumbnailName = (this: VideoInstance) => string
   export type GetPreviewName = (this: VideoInstance) => string
   export type IsOwned = (this: VideoInstance) => boolean
   export type ToFormattedJSON = (this: VideoInstance) => FormattedVideo
 
+  export type GetOriginalFile = (this: VideoInstance) => VideoFileInstance
   export type GenerateMagnetUri = (this: VideoInstance, videoFile: VideoFileInstance) => string
   export type GetTorrentFileName = (this: VideoInstance, videoFile: VideoFileInstance) => string
   export type GetVideoFilename = (this: VideoInstance, videoFile: VideoFileInstance) => string
@@ -69,10 +26,12 @@ export namespace VideoMethods {
   export type GetVideoFilePath = (this: VideoInstance, videoFile: VideoFileInstance) => string
   export type CreateTorrentAndSetInfoHash = (this: VideoInstance, videoFile: VideoFileInstance) => Promise<void>
 
-  export type ToAddRemoteJSON = (this: VideoInstance) => Promise<FormattedAddRemoteVideo>
-  export type ToUpdateRemoteJSON = (this: VideoInstance) => FormattedUpdateRemoteVideo
+  export type ToAddRemoteJSON = (this: VideoInstance) => Promise<RemoteVideoCreateData>
+  export type ToUpdateRemoteJSON = (this: VideoInstance) => RemoteVideoUpdateData
 
-  export type TranscodeVideofile = (this: VideoInstance, inputVideoFile: VideoFileInstance) => Promise<void>
+  export type OptimizeOriginalVideofile = (this: VideoInstance) => Promise<void>
+  export type TranscodeOriginalVideofile = (this: VideoInstance, resolution: number) => Promise<void>
+  export type GetOriginalFileHeight = (this: VideoInstance) => Promise<number>
 
   // Return thumbnail name
   export type GenerateThumbnailFromData = (video: VideoInstance, thumbnailData: string) => Promise<string>
@@ -147,6 +106,7 @@ export interface VideoInstance extends VideoClass, VideoAttributes, Sequelize.In
   createPreview: VideoMethods.CreatePreview
   createThumbnail: VideoMethods.CreateThumbnail
   createTorrentAndSetInfoHash: VideoMethods.CreateTorrentAndSetInfoHash
+  getOriginalFile: VideoMethods.GetOriginalFile
   generateMagnetUri: VideoMethods.GenerateMagnetUri
   getPreviewName: VideoMethods.GetPreviewName
   getThumbnailName: VideoMethods.GetThumbnailName
@@ -161,9 +121,12 @@ export interface VideoInstance extends VideoClass, VideoAttributes, Sequelize.In
   toAddRemoteJSON: VideoMethods.ToAddRemoteJSON
   toFormattedJSON: VideoMethods.ToFormattedJSON
   toUpdateRemoteJSON: VideoMethods.ToUpdateRemoteJSON
-  transcodeVideofile: VideoMethods.TranscodeVideofile
+  optimizeOriginalVideofile: VideoMethods.OptimizeOriginalVideofile
+  transcodeOriginalVideofile: VideoMethods.TranscodeOriginalVideofile
+  getOriginalFileHeight: VideoMethods.GetOriginalFileHeight
 
   setTags: Sequelize.HasManySetAssociationsMixin<TagAttributes, string>
+  addVideoFile: Sequelize.HasManyAddAssociationMixin<VideoFileAttributes, string>
   setVideoFiles: Sequelize.HasManySetAssociationsMixin<VideoFileAttributes, string>
 }
 
diff --git a/server/models/video/video.ts b/server/models/video/video.ts
index e011c3b4d..28df91a7b 100644
--- a/server/models/video/video.ts
+++ b/server/models/video/video.ts
@@ -22,7 +22,8 @@ import {
   unlinkPromise,
   renamePromise,
   writeFilePromise,
-  createTorrentPromise
+  createTorrentPromise,
+  statPromise
 } from '../../helpers'
 import {
   CONFIG,
@@ -35,7 +36,8 @@ import {
   VIDEO_FILE_RESOLUTIONS
 } from '../../initializers'
 import { removeVideoToFriends } from '../../lib'
-import { VideoFileInstance } from './video-file-interface'
+import { VideoResolution } from '../../../shared'
+import { VideoFileInstance, VideoFileModel } from './video-file-interface'
 
 import { addMethodsToModel, getSort } from '../utils'
 import {
@@ -46,6 +48,7 @@ import {
 } from './video-interface'
 
 let Video: Sequelize.Model<VideoInstance, VideoAttributes>
+let getOriginalFile: VideoMethods.GetOriginalFile
 let generateMagnetUri: VideoMethods.GenerateMagnetUri
 let getVideoFilename: VideoMethods.GetVideoFilename
 let getThumbnailName: VideoMethods.GetThumbnailName
@@ -55,11 +58,13 @@ let isOwned: VideoMethods.IsOwned
 let toFormattedJSON: VideoMethods.ToFormattedJSON
 let toAddRemoteJSON: VideoMethods.ToAddRemoteJSON
 let toUpdateRemoteJSON: VideoMethods.ToUpdateRemoteJSON
-let transcodeVideofile: VideoMethods.TranscodeVideofile
+let optimizeOriginalVideofile: VideoMethods.OptimizeOriginalVideofile
+let transcodeOriginalVideofile: VideoMethods.TranscodeOriginalVideofile
 let createPreview: VideoMethods.CreatePreview
 let createThumbnail: VideoMethods.CreateThumbnail
 let getVideoFilePath: VideoMethods.GetVideoFilePath
 let createTorrentAndSetInfoHash: VideoMethods.CreateTorrentAndSetInfoHash
+let getOriginalFileHeight: VideoMethods.GetOriginalFileHeight
 
 let generateThumbnailFromData: VideoMethods.GenerateThumbnailFromData
 let getDurationFromFile: VideoMethods.GetDurationFromFile
@@ -251,6 +256,7 @@ export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.Da
     getTorrentFileName,
     getVideoFilename,
     getVideoFilePath,
+    getOriginalFile,
     isOwned,
     removeFile,
     removePreview,
@@ -259,7 +265,9 @@ export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.Da
     toAddRemoteJSON,
     toFormattedJSON,
     toUpdateRemoteJSON,
-    transcodeVideofile
+    optimizeOriginalVideofile,
+    transcodeOriginalVideofile,
+    getOriginalFileHeight
   ]
   addMethodsToModel(Video, classMethods, instanceMethods)
 
@@ -327,9 +335,14 @@ function afterDestroy (video: VideoInstance, options: { transaction: Sequelize.T
   return Promise.all(tasks)
 }
 
+getOriginalFile = function (this: VideoInstance) {
+  if (Array.isArray(this.VideoFiles) === false) return undefined
+
+  return this.VideoFiles.find(file => file.resolution === VideoResolution.ORIGINAL)
+}
+
 getVideoFilename = function (this: VideoInstance, videoFile: VideoFileInstance) {
-  // return this.uuid + '-' + VIDEO_FILE_RESOLUTIONS[videoFile.resolution] + videoFile.extname
-  return this.uuid + videoFile.extname
+  return this.uuid + '-' + VIDEO_FILE_RESOLUTIONS[videoFile.resolution] + videoFile.extname
 }
 
 getThumbnailName = function (this: VideoInstance) {
@@ -345,8 +358,7 @@ getPreviewName = function (this: VideoInstance) {
 
 getTorrentFileName = function (this: VideoInstance, videoFile: VideoFileInstance) {
   const extension = '.torrent'
-  // return this.uuid + '-' + VIDEO_FILE_RESOLUTIONS[videoFile.resolution] + extension
-  return this.uuid + extension
+  return this.uuid + '-' + VIDEO_FILE_RESOLUTIONS[videoFile.resolution] + extension
 }
 
 isOwned = function (this: VideoInstance) {
@@ -552,9 +564,10 @@ toUpdateRemoteJSON = function (this: VideoInstance) {
   return json
 }
 
-transcodeVideofile = function (this: VideoInstance, inputVideoFile: VideoFileInstance) {
+optimizeOriginalVideofile = function (this: VideoInstance) {
   const videosDirectory = CONFIG.STORAGE.VIDEOS_DIR
   const newExtname = '.mp4'
+  const inputVideoFile = this.getOriginalFile()
   const videoInputPath = join(videosDirectory, this.getVideoFilename(inputVideoFile))
   const videoOutputPath = join(videosDirectory, this.id + '-transcoded' + newExtname)
 
@@ -575,6 +588,12 @@ transcodeVideofile = function (this: VideoInstance, inputVideoFile: VideoFileIns
             return renamePromise(videoOutputPath, this.getVideoFilePath(inputVideoFile))
           })
           .then(() => {
+            return statPromise(this.getVideoFilePath(inputVideoFile))
+          })
+          .then(stats => {
+            return inputVideoFile.set('size', stats.size)
+          })
+          .then(() => {
             return this.createTorrentAndSetInfoHash(inputVideoFile)
           })
           .then(() => {
@@ -594,6 +613,74 @@ transcodeVideofile = function (this: VideoInstance, inputVideoFile: VideoFileIns
   })
 }
 
+transcodeOriginalVideofile = function (this: VideoInstance, resolution: VideoResolution) {
+  const videosDirectory = CONFIG.STORAGE.VIDEOS_DIR
+  const extname = '.mp4'
+
+  // We are sure it's x264 in mp4 because optimizeOriginalVideofile was already executed
+  const videoInputPath = join(videosDirectory, this.getVideoFilename(this.getOriginalFile()))
+
+  const newVideoFile = (Video['sequelize'].models.VideoFile as VideoFileModel).build({
+    resolution,
+    extname,
+    size: 0,
+    videoId: this.id
+  })
+  const videoOutputPath = join(videosDirectory, this.getVideoFilename(newVideoFile))
+  const resolutionWidthSizes = {
+    1: '240x?',
+    2: '360x?',
+    3: '480x?',
+    4: '720x?',
+    5: '1080x?'
+  }
+
+  return new Promise<void>((res, rej) => {
+    ffmpeg(videoInputPath)
+      .output(videoOutputPath)
+      .videoCodec('libx264')
+      .size(resolutionWidthSizes[resolution])
+      .outputOption('-threads ' + CONFIG.TRANSCODING.THREADS)
+      .outputOption('-movflags faststart')
+      .on('error', rej)
+      .on('end', () => {
+        return statPromise(videoOutputPath)
+          .then(stats => {
+            newVideoFile.set('size', stats.size)
+
+            return undefined
+          })
+          .then(() => {
+            return this.createTorrentAndSetInfoHash(newVideoFile)
+          })
+          .then(() => {
+            return newVideoFile.save()
+          })
+          .then(() => {
+            return this.VideoFiles.push(newVideoFile)
+          })
+          .then(() => {
+            return res()
+          })
+          .catch(rej)
+      })
+      .run()
+  })
+}
+
+getOriginalFileHeight = function (this: VideoInstance) {
+  const originalFilePath = this.getVideoFilePath(this.getOriginalFile())
+
+  return new Promise<number>((res, rej) => {
+    ffmpeg.ffprobe(originalFilePath, (err, metadata) => {
+      if (err) return rej(err)
+
+      const videoStream = metadata.streams.find(s => s.codec_type === 'video')
+      return res(videoStream.height)
+    })
+  })
+}
+
 removeThumbnail = function (this: VideoInstance) {
   const thumbnailPath = join(CONFIG.STORAGE.THUMBNAILS_DIR, this.getThumbnailName())
   return unlinkPromise(thumbnailPath)
diff --git a/server/tests/api/multiple-pods.ts b/server/tests/api/multiple-pods.ts
index 7117ab290..9860935e5 100644
--- a/server/tests/api/multiple-pods.ts
+++ b/server/tests/api/multiple-pods.ts
@@ -129,7 +129,7 @@ describe('Test multiple pods', function () {
     })
 
     it('Should upload the video on pod 2 and propagate on each pod', async function () {
-      this.timeout(60000)
+      this.timeout(120000)
 
       const videoAttributes = {
         name: 'my super name for pod 2',
@@ -143,12 +143,12 @@ describe('Test multiple pods', function () {
       }
       await uploadVideo(servers[1].url, servers[1].accessToken, videoAttributes)
 
-      // Transcoding, so wait more that 22 seconds
-      await wait(42000)
+      // Transcoding, so wait more than 22000
+      await wait(60000)
 
       // All pods should have this video
       for (const server of servers) {
-        let baseMagnet = null
+        let baseMagnet = {}
 
         const res = await getVideosList(server.url)
 
@@ -172,28 +172,51 @@ describe('Test multiple pods', function () {
         expect(dateIsValid(video.updatedAt)).to.be.true
         expect(video.author).to.equal('root')
 
-        expect(video.files).to.have.lengthOf(1)
+        expect(video.files).to.have.lengthOf(5)
 
-        const file = video.files[0]
-        const magnetUri = file.magnetUri
-        expect(file.magnetUri).to.have.lengthOf.above(2)
-        expect(file.resolution).to.equal(0)
-        expect(file.resolutionLabel).to.equal('original')
-        expect(file.size).to.equal(942961)
+        // Check common attributes
+        for (const file of video.files) {
+          expect(file.magnetUri).to.have.lengthOf.above(2)
 
-        if (server.url !== 'http://localhost:9002') {
-          expect(video.isLocal).to.be.false
-        } else {
-          expect(video.isLocal).to.be.true
-        }
+          if (server.url !== 'http://localhost:9002') {
+            expect(video.isLocal).to.be.false
+          } else {
+            expect(video.isLocal).to.be.true
+          }
 
-        // All pods should have the same magnet Uri
-        if (baseMagnet === null) {
-          baseMagnet = magnetUri
-        } else {
-          expect(baseMagnet).to.equal(magnetUri)
+          // All pods should have the same magnet Uri
+          if (baseMagnet[file.resolution] === undefined) {
+            baseMagnet[file.resolution] = file.magnet
+          } else {
+            expect(baseMagnet[file.resolution]).to.equal(file.magnet)
+          }
         }
 
+        const originalFile = video.files.find(f => f.resolution === 0)
+        expect(originalFile).not.to.be.undefined
+        expect(originalFile.resolutionLabel).to.equal('original')
+        expect(originalFile.size).to.equal(711327)
+
+        const file240p = video.files.find(f => f.resolution === 1)
+        expect(file240p).not.to.be.undefined
+        expect(file240p.resolutionLabel).to.equal('240p')
+        expect(file240p.size).to.equal(139953)
+
+        const file360p = video.files.find(f => f.resolution === 2)
+        expect(file360p).not.to.be.undefined
+        expect(file360p.resolutionLabel).to.equal('360p')
+        expect(file360p.size).to.equal(169926)
+
+        const file480p = video.files.find(f => f.resolution === 3)
+        expect(file480p).not.to.be.undefined
+        expect(file480p.resolutionLabel).to.equal('480p')
+        expect(file480p.size).to.equal(206758)
+
+        const file720p = video.files.find(f => f.resolution === 4)
+        expect(file720p).not.to.be.undefined
+        expect(file720p.resolutionLabel).to.equal('720p')
+        expect(file720p.size).to.equal(314913)
+
         const test = await testVideoImage(server.url, 'video_short2.webm', video.thumbnailPath)
         expect(test).to.equal(true)
       }
diff --git a/server/tests/api/video-transcoder.ts b/server/tests/api/video-transcoder.ts
index c6d4c61f5..b5d84d9e7 100644
--- a/server/tests/api/video-transcoder.ts
+++ b/server/tests/api/video-transcoder.ts
@@ -42,6 +42,8 @@ describe('Test video transcoding', function () {
 
     const res = await getVideosList(servers[0].url)
     const video = res.body.data[0]
+    expect(video.files).to.have.lengthOf(1)
+
     const magnetUri = video.files[0].magnetUri
     expect(magnetUri).to.match(/\.webm/)
 
@@ -66,6 +68,8 @@ describe('Test video transcoding', function () {
     const res = await getVideosList(servers[1].url)
 
     const video = res.body.data[0]
+    expect(video.files).to.have.lengthOf(5)
+
     const magnetUri = video.files[0].magnetUri
     expect(magnetUri).to.match(/\.mp4/)
 
diff --git a/server/tests/cli/update-host.ts b/server/tests/cli/update-host.ts
index 644b3807e..e31a84156 100644
--- a/server/tests/cli/update-host.ts
+++ b/server/tests/cli/update-host.ts
@@ -12,14 +12,15 @@ import {
   runServer,
   ServerInfo,
   setAccessTokensToServers,
-  uploadVideo
+  uploadVideo,
+  wait
 } from '../utils'
 
 describe('Test update host scripts', function () {
   let server: ServerInfo
 
   before(async function () {
-    this.timeout(30000)
+    this.timeout(60000)
 
     await flushTests()
 
@@ -28,36 +29,43 @@ describe('Test update host scripts', function () {
         port: 9256
       }
     }
-    server = await runServer(1, overrideConfig)
+    // Run server 2 to have transcoding enabled
+    server = await runServer(2, overrideConfig)
     await setAccessTokensToServers([ server ])
 
     // Upload two videos for our needs
     const videoAttributes = {}
     await uploadVideo(server.url, server.accessToken, videoAttributes)
     await uploadVideo(server.url, server.accessToken, videoAttributes)
+    await wait(30000)
   })
 
   it('Should update torrent hosts', async function () {
     this.timeout(30000)
 
     killallServers([ server ])
-    server = await runServer(1)
+    // Run server with standard configuration
+    server = await runServer(2)
 
     const env = getEnvCli(server)
     await execCLI(`${env} npm run update-host`)
 
     const res = await getVideosList(server.url)
     const videos = res.body.data
+    expect(videos).to.have.lengthOf(2)
 
-    expect(videos[0].files[0].magnetUri).to.contain('localhost%3A9001%2Ftracker%2Fsocket')
-    expect(videos[0].files[0].magnetUri).to.contain('localhost%3A9001%2Fstatic%2Fwebseed%2F')
+    for (const video of videos) {
+      expect(video.files).to.have.lengthOf(5)
 
-    expect(videos[1].files[0].magnetUri).to.contain('localhost%3A9001%2Ftracker%2Fsocket')
-    expect(videos[1].files[0].magnetUri).to.contain('localhost%3A9001%2Fstatic%2Fwebseed%2F')
+      for (const file of video.files) {
+        expect(file.magnetUri).to.contain('localhost%3A9002%2Ftracker%2Fsocket')
+        expect(file.magnetUri).to.contain('localhost%3A9002%2Fstatic%2Fwebseed%2F')
 
-    const torrent = await parseTorrentVideo(server, videos[0].uuid)
-    expect(torrent.announce[0]).to.equal('ws://localhost:9001/tracker/socket')
-    expect(torrent.urlList[0]).to.contain('http://localhost:9001/static/webseed')
+        const torrent = await parseTorrentVideo(server, video.uuid, file.resolutionLabel)
+        expect(torrent.announce[0]).to.equal('ws://localhost:9002/tracker/socket')
+        expect(torrent.urlList[0]).to.contain('http://localhost:9002/static/webseed')
+      }
+    }
   })
 
   after(async function () {
diff --git a/server/tests/utils/videos.ts b/server/tests/utils/videos.ts
index 0de506cd9..7f8bd39c0 100644
--- a/server/tests/utils/videos.ts
+++ b/server/tests/utils/videos.ts
@@ -238,9 +238,10 @@ function rateVideo (url: string, accessToken: string, id: number, rating: string
           .expect(specialStatus)
 }
 
-function parseTorrentVideo (server: ServerInfo, videoUUID: string) {
+function parseTorrentVideo (server: ServerInfo, videoUUID: string, resolutionLabel: string) {
   return new Promise<any>((res, rej) => {
-    const torrentPath = join(__dirname, '..', '..', '..', 'test' + server.serverNumber, 'torrents', videoUUID + '.torrent')
+    const torrentName = videoUUID + '-' + resolutionLabel + '.torrent'
+    const torrentPath = join(__dirname, '..', '..', '..', 'test' + server.serverNumber, 'torrents', torrentName)
     readFile(torrentPath, (err, data) => {
       if (err) return rej(err)
 
diff --git a/shared/models/pods/remote-video/remote-video-update-request.model.ts b/shared/models/pods/remote-video/remote-video-update-request.model.ts
index dd3e2ae1a..7f34a30ae 100644
--- a/shared/models/pods/remote-video/remote-video-update-request.model.ts
+++ b/shared/models/pods/remote-video/remote-video-update-request.model.ts
@@ -2,8 +2,6 @@ export interface RemoteVideoUpdateData {
   uuid: string
   tags: string[]
   name: string
-  extname: string
-  infoHash: string
   category: number
   licence: number
   language: number
diff --git a/shared/models/videos/index.ts b/shared/models/videos/index.ts
index 64d1676c5..35144dbad 100644
--- a/shared/models/videos/index.ts
+++ b/shared/models/videos/index.ts
@@ -6,5 +6,6 @@ export * from './video-abuse.model'
 export * from './video-blacklist.model'
 export * from './video-create.model'
 export * from './video-rate.type'
+export * from './video-resolution.enum'
 export * from './video-update.model'
 export * from './video.model'
diff --git a/shared/models/videos/video-resolution.enum.ts b/shared/models/videos/video-resolution.enum.ts
new file mode 100644
index 000000000..bdce77ed6
--- /dev/null
+++ b/shared/models/videos/video-resolution.enum.ts
@@ -0,0 +1,8 @@
+export enum VideoResolution {
+  ORIGINAL = 0,
+  H_240P = 240,
+  H_360P = 360,
+  H_480P = 480,
+  H_720P = 720,
+  H_1080P = 1080
+}