1 files changed, 67 insertions, 0 deletions

diff --git a/scripts/optimize-old-videos.ts b/scripts/optimize-old-videos.ts
new file mode 100644
index 000000000..1bee1b0f3
--- /dev/null
+++ b/scripts/optimize-old-videos.ts
@@ -0,0 +1,67 @@
+import { CONFIG, VIDEO_TRANSCODING_FPS } from '../server/initializers/constants'
+import { getVideoFileBitrate, getVideoFileFPS, getVideoFileResolution, getDurationFromVideoFile } from '../server/helpers/ffmpeg-utils'
+import { getMaxBitrate } from '../shared/models/videos'
+import { VideoModel } from '../server/models/video/video'
+import { optimizeVideofile } from '../server/lib/video-transcoding'
+import { initDatabaseModels } from '../server/initializers'
+import { join, basename, dirname } from 'path'
+import { copy, remove, move } from 'fs-extra'
+
+run()
+  .then(() => process.exit(0))
+  .catch(err => {
+    console.error(err)
+    process.exit(-1)
+  })
+
+let currentVideoId = null
+let currentFile = null
+
+process.on('SIGINT', async function () {
+  console.log('Cleaning up temp files')
+  await remove(`${currentFile}_backup`)
+  await remove(`${dirname(currentFile)}/${currentVideoId}-transcoded.mp4`)
+  process.exit(0)
+})
+
+async function run () {
+  await initDatabaseModels(true)
+
+  const localVideos = await VideoModel.listLocal()
+
+  for (const video of localVideos) {
+    currentVideoId = video.id
+    for (const file of video.VideoFiles) {
+      currentFile = join(CONFIG.STORAGE.VIDEOS_DIR, video.getVideoFilename(file))
+
+      const [ videoBitrate, fps, resolution ] = await Promise.all([
+        getVideoFileBitrate(currentFile),
+        getVideoFileFPS(currentFile),
+        getVideoFileResolution(currentFile)
+      ])
+
+      const maxBitrate = getMaxBitrate(resolution.videoFileResolution, fps, VIDEO_TRANSCODING_FPS)
+      const isMaxBitrateExceeded = videoBitrate > maxBitrate
+      if (isMaxBitrateExceeded) {
+        console.log('Optimizing video file %s with bitrate %s kbps (max: %s kbps)',
+          basename(currentFile), videoBitrate / 1000, maxBitrate / 1000)
+        const backupFile = `${currentFile}_backup`
+        await copy(currentFile, backupFile)
+        await optimizeVideofile(video, file)
+        const originalDuration = await getDurationFromVideoFile(backupFile)
+        const newDuration = await getDurationFromVideoFile(currentFile)
+        if (originalDuration === newDuration) {
+          console.log('Finished optimizing %s', basename(currentFile))
+          await remove(backupFile)
+        } else {
+          console.log('Failed to optimize %s, restoring original', basename(currentFile))
+          move(backupFile, currentFile, { overwrite: true })
+          await video.createTorrentAndSetInfoHash(file)
+          await file.save()
+        }
+      }
+    }
+  }
+
+  console.log('Finished optimizing videos')
+}