Implement remote runner jobs in server

Move ffmpeg functions to @shared

server/lib/transcoding/shared/ffmpeg-builder.ts

@@ -0,0 +1,18 @@
+import { Job } from 'bullmq'
+import { getFFmpegCommandWrapperOptions } from '@server/helpers/ffmpeg'
+import { logger } from '@server/helpers/logger'
+import { FFmpegVOD } from '@shared/ffmpeg'
+import { VideoTranscodingProfilesManager } from '../default-transcoding-profiles'
+
+export function buildFFmpegVOD (job?: Job) {
+  return new FFmpegVOD({
+    ...getFFmpegCommandWrapperOptions('vod', VideoTranscodingProfilesManager.Instance.getAvailableEncoders()),
+
+    updateJobProgress: progress => {
+      if (!job) return
+
+      job.updateProgress(progress)
+        .catch(err => logger.error('Cannot update ffmpeg job progress', { err }))
+    }
+  })
+}