5 files changed, 43 insertions, 26 deletions

diff --git a/server/lib/job-queue/handlers/transcoding-job-builder.ts b/server/lib/job-queue/handlers/transcoding-job-builder.ts
index 8b4a877d7..cb45337df 100644
--- a/server/lib/job-queue/handlers/transcoding-job-builder.ts
+++ b/server/lib/job-queue/handlers/transcoding-job-builder.ts
@@ -36,7 +36,7 @@ async function processTranscodingJobBuilder (job: Job) {
   for (const sequentialJobs of (payload.sequentialJobs || [])) {
     await JobQueue.Instance.createSequentialJobFlow(...sequentialJobs)
 
-    await VideoJobInfoModel.increaseOrCreate(payload.videoUUID, 'pendingTranscode', sequentialJobs.length)
+    await VideoJobInfoModel.increaseOrCreate(payload.videoUUID, 'pendingTranscode', sequentialJobs.filter(s => !!s).length)
   }
 }
 
diff --git a/server/lib/job-queue/handlers/video-transcoding.ts b/server/lib/job-queue/handlers/video-transcoding.ts
index 17b717275..39f078bf0 100644
--- a/server/lib/job-queue/handlers/video-transcoding.ts
+++ b/server/lib/job-queue/handlers/video-transcoding.ts
@@ -81,7 +81,7 @@ async function handleWebTorrentMergeAudioJob (job: Job, payload: MergeAudioTrans
 
   logger.info('Merge audio transcoding job for %s ended.', video.uuid, lTags(video.uuid))
 
-  await onTranscodingEnded({ isNewVideo: payload.isNewVideo, moveVideoToNextState: true, video })
+  await onTranscodingEnded({ isNewVideo: payload.isNewVideo, moveVideoToNextState: !payload.hasChildren, video })
 }
 
 async function handleWebTorrentOptimizeJob (job: Job, payload: OptimizeTranscodingPayload, video: MVideoFullLight, user: MUserId) {
@@ -91,9 +91,11 @@ async function handleWebTorrentOptimizeJob (job: Job, payload: OptimizeTranscodi
 
   logger.info('Optimize transcoding job for %s ended.', video.uuid, lTags(video.uuid))
 
-  await onTranscodingEnded({ isNewVideo: payload.isNewVideo, moveVideoToNextState: true, video })
+  await onTranscodingEnded({ isNewVideo: payload.isNewVideo, moveVideoToNextState: !payload.hasChildren, video })
 }
 
+// ---------------------------------------------------------------------------
+
 async function handleNewWebTorrentResolutionJob (job: Job, payload: NewWebTorrentResolutionTranscodingPayload, video: MVideoFullLight) {
   logger.info('Handling WebTorrent transcoding job for %s.', video.uuid, lTags(video.uuid))
 
@@ -104,19 +106,22 @@ async function handleNewWebTorrentResolutionJob (job: Job, payload: NewWebTorren
   await onTranscodingEnded({ isNewVideo: payload.isNewVideo, moveVideoToNextState: true, video })
 }
 
-async function handleHLSJob (job: Job, payload: HLSTranscodingPayload, video: MVideoFullLight) {
-  logger.info('Handling HLS transcoding job for %s.', video.uuid, lTags(video.uuid))
-
-  const videoFileInput = payload.copyCodecs
-    ? video.getWebTorrentFile(payload.resolution)
-    : video.getMaxQualityFile()
+// ---------------------------------------------------------------------------
 
-  const videoOrStreamingPlaylist = videoFileInput.getVideoOrStreamingPlaylist()
+async function handleHLSJob (job: Job, payload: HLSTranscodingPayload, videoArg: MVideoFullLight) {
+  logger.info('Handling HLS transcoding job for %s.', videoArg.uuid, lTags(videoArg.uuid))
 
-  const inputFileMutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
+  const inputFileMutexReleaser = await VideoPathManager.Instance.lockFiles(videoArg.uuid)
+  let video: MVideoFullLight
 
   try {
-    await videoFileInput.getVideo().reload()
+    video = await VideoModel.loadFull(videoArg.uuid)
+
+    const videoFileInput = payload.copyCodecs
+      ? video.getWebTorrentFile(payload.resolution)
+      : video.getMaxQualityFile()
+
+    const videoOrStreamingPlaylist = videoFileInput.getVideoOrStreamingPlaylist()
 
     await VideoPathManager.Instance.makeAvailableVideoFile(videoFileInput.withVideoOrPlaylist(videoOrStreamingPlaylist), videoInputPath => {
       return generateHlsPlaylistResolution({
diff --git a/server/lib/transcoding/shared/job-builders/transcoding-job-queue-builder.ts b/server/lib/transcoding/shared/job-builders/transcoding-job-queue-builder.ts
index 7c892718b..c09c6b8ce 100644
--- a/server/lib/transcoding/shared/job-builders/transcoding-job-queue-builder.ts
+++ b/server/lib/transcoding/shared/job-builders/transcoding-job-queue-builder.ts
@@ -76,9 +76,10 @@ export class TranscodingJobQueueBuilder extends AbstractJobBuilder {
 
         nextTranscodingSequentialJobPayloads = [ ...nextTranscodingSequentialJobPayloads, ...lowerResolutionJobPayloads ]
 
+        const hasChildren = nextTranscodingSequentialJobPayloads.length !== 0
         mergeOrOptimizePayload = videoFile.isAudio()
-          ? this.buildMergeAudioPayload({ videoUUID: video.uuid, isNewVideo })
-          : this.buildOptimizePayload({ videoUUID: video.uuid, isNewVideo, quickTranscode })
+          ? this.buildMergeAudioPayload({ videoUUID: video.uuid, isNewVideo, hasChildren })
+          : this.buildOptimizePayload({ videoUUID: video.uuid, isNewVideo, quickTranscode, hasChildren })
       })
     } finally {
       mutexReleaser()
@@ -100,7 +101,9 @@ export class TranscodingJobQueueBuilder extends AbstractJobBuilder {
 
     const mergeOrOptimizeJob = await this.buildTranscodingJob({ payload: mergeOrOptimizePayload, user })
 
-    return JobQueue.Instance.createSequentialJobFlow(...[ mergeOrOptimizeJob, transcodingJobBuilderJob ])
+    await JobQueue.Instance.createSequentialJobFlow(...[ mergeOrOptimizeJob, transcodingJobBuilderJob ])
+
+    await VideoJobInfoModel.increaseOrCreate(video.uuid, 'pendingTranscode')
   }
 
   // ---------------------------------------------------------------------------
@@ -279,15 +282,17 @@ export class TranscodingJobQueueBuilder extends AbstractJobBuilder {
   private buildMergeAudioPayload (options: {
     videoUUID: string
     isNewVideo: boolean
+    hasChildren: boolean
   }): MergeAudioTranscodingPayload {
-    const { videoUUID, isNewVideo } = options
+    const { videoUUID, isNewVideo, hasChildren } = options
 
     return {
       type: 'merge-audio-to-webtorrent',
       resolution: DEFAULT_AUDIO_RESOLUTION,
       fps: VIDEO_TRANSCODING_FPS.AUDIO_MERGE,
       videoUUID,
-      isNewVideo
+      isNewVideo,
+      hasChildren
     }
   }
 
@@ -295,13 +300,15 @@ export class TranscodingJobQueueBuilder extends AbstractJobBuilder {
     videoUUID: string
     quickTranscode: boolean
     isNewVideo: boolean
+    hasChildren: boolean
   }): OptimizeTranscodingPayload {
-    const { videoUUID, quickTranscode, isNewVideo } = options
+    const { videoUUID, quickTranscode, isNewVideo, hasChildren } = options
 
     return {
       type: 'optimize-to-webtorrent',
       videoUUID,
       isNewVideo,
+      hasChildren,
       quickTranscode
     }
   }
diff --git a/server/lib/transcoding/web-transcoding.ts b/server/lib/transcoding/web-transcoding.ts
index d43d03b2a..22bd238ae 100644
--- a/server/lib/transcoding/web-transcoding.ts
+++ b/server/lib/transcoding/web-transcoding.ts
@@ -14,6 +14,7 @@ import { buildFileMetadata } from '../video-file'
 import { VideoPathManager } from '../video-path-manager'
 import { buildFFmpegVOD } from './shared'
 import { computeResolutionsToTranscode } from './transcoding-resolutions'
+import { VideoModel } from '@server/models/video/video'
 
 // Optimize the original video file and replace it. The resolution is not changed.
 export async function optimizeOriginalVideofile (options: {
@@ -32,6 +33,7 @@ export async function optimizeOriginalVideofile (options: {
 
   try {
     await video.reload()
+    await inputVideoFile.reload()
 
     const fileWithVideoOrPlaylist = inputVideoFile.withVideoOrPlaylist(video)
 
@@ -88,16 +90,15 @@ export async function transcodeNewWebTorrentResolution (options: {
   fps: number
   job: Job
 }) {
-  const { video, resolution, fps, job } = options
+  const { video: videoArg, resolution, fps, job } = options
 
   const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
   const newExtname = '.mp4'
 
-  const inputFileMutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
+  const inputFileMutexReleaser = await VideoPathManager.Instance.lockFiles(videoArg.uuid)
 
   try {
-    await video.reload()
-
+    const video = await VideoModel.loadFull(videoArg.uuid)
     const file = video.getMaxQualityFile().withVideoOrPlaylist(video)
 
     const result = await VideoPathManager.Instance.makeAvailableVideoFile(file, async videoInputPath => {
@@ -141,16 +142,15 @@ export async function mergeAudioVideofile (options: {
   fps: number
   job: Job
 }) {
-  const { video, resolution, fps, job } = options
+  const { video: videoArg, resolution, fps, job } = options
 
   const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
   const newExtname = '.mp4'
 
-  const inputFileMutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
+  const inputFileMutexReleaser = await VideoPathManager.Instance.lockFiles(videoArg.uuid)
 
   try {
-    await video.reload()
-
+    const video = await VideoModel.loadFull(videoArg.uuid)
     const inputVideoFile = video.getMinQualityFile()
 
     const fileWithVideoOrPlaylist = inputVideoFile.withVideoOrPlaylist(video)
diff --git a/shared/models/server/job.model.ts b/shared/models/server/job.model.ts
index 16187d133..3fd5bf7f9 100644
--- a/shared/models/server/job.model.ts
+++ b/shared/models/server/job.model.ts
@@ -158,14 +158,19 @@ export interface NewWebTorrentResolutionTranscodingPayload extends BaseTranscodi
 
 export interface MergeAudioTranscodingPayload extends BaseTranscodingPayload {
   type: 'merge-audio-to-webtorrent'
+
   resolution: VideoResolution
   fps: number
+
+  hasChildren: boolean
 }
 
 export interface OptimizeTranscodingPayload extends BaseTranscodingPayload {
   type: 'optimize-to-webtorrent'
 
   quickTranscode: boolean
+
+  hasChildren: boolean
 }
 
 export type VideoTranscodingPayload =