[fix] remove useless transcription file

config/default.yaml

@@ -806,6 +806,11 @@ video_transcription:
   # At least 1 remote runner must be configured to transcribe your videos
   remote_runners:
     enabled: false
+
+  # Size of transcription files to keep on your server
+  # If the transcription file is smaller than this size, PeerTube will delete it after transcription
+  # With this setting, you can limit the hallucinations of the transcription engine
+  limit_valid_transcription_size: 100
 
 video_file:
   update:

server/core/initializers/config.ts

@@ -750,6 +750,9 @@ const CONFIG = {
     get MODEL_PATH () {
       return config.get<string>('video_transcription.model_path')
     },
+    get LIMIT_VALID_TRANSCRIPTION_SIZE () {
+      return config.get<number>('video_transcription.limit_valid_transcription_size')
+    },
     REMOTE_RUNNERS: {
       get ENABLED () {
         return config.get<boolean>('video_transcription.remote_runners.enabled')

server/core/lib/video-captions.ts

@@ -23,6 +23,7 @@
 import { Notifier } from './notifier/notifier.js'
 import { TranscriptionJobHandler } from './runners/index.js'
 import { VideoPathManager } from './video-path-manager.js'
+import { promises as fs } from 'fs'
 
 const lTags = loggerTagsFactory('video-caption')
 
@@ -213,6 +214,18 @@
   lTags?: (string | number)[]
 }) {
   const { video, language, vttPath, lTags: customLTags = [] } = options
+  var limitValideTranscriptionSize = CONFIG.VIDEO_TRANSCRIPTION.LIMIT_VALID_TRANSCRIPTION_SIZE || 100
+
+  try {
+    const stats = await fs.stat(vttPath)
+    if (stats.size < limitValideTranscriptionSize) {
+      logger.info(`Transcription file ${vttPath} is too small, do not create caption for video ${video.uuid}`)
+      return
+    }
+  } catch (err) {
+    logger.error(`Error while checking transcription file ${vttPath} for video ${video.uuid}`, { err })
+    return
+  }
 
   if (!isVideoCaptionLanguageValid(language)) {
     logger.warn(`Invalid transcription language for video ${video.uuid}`, lTags(video.uuid))