feat(all): transcoding improvements (#2171)

* test: rename some fixtures and add text for vertical video conversion

* feat: transcode video asset when audio or container don't match target

* chore: add niceness to the ffmpeg command to allow other processes to be prioritised

* chore: change video conversion queue to one concurrency

* feat: add transcode disabled preset to completely turn off transcoding

* linter

* Change log level and remove unused await

* opps forgot to save

* better logging

---------

Co-authored-by: Alex Tran <alex.tran1502@gmail.com>

server/libs/infra/src/entities/system-config.entity.ts

@@ -37,6 +37,7 @@ export enum TranscodePreset {
   ALL = 'all',
   OPTIMAL = 'optimal',
   REQUIRED = 'required',
+  DISABLED = 'disabled',
 }
 
 export interface SystemConfig {

server/libs/infra/src/repositories/media.repository.ts

@@ -50,20 +50,33 @@ export class MediaRepository implements IMediaRepository {
     const results = await probe(input);
 
     return {
-      streams: results.streams.map((stream) => ({
-        height: stream.height || 0,
-        width: stream.width || 0,
-        codecName: stream.codec_name,
-        codecType: stream.codec_type,
-        frameCount: Number.parseInt(stream.nb_frames ?? '0'),
-        rotation: Number.parseInt(`${stream.rotation ?? 0}`),
-      })),
+      format: {
+        formatName: results.format.format_name,
+        formatLongName: results.format.format_long_name,
+        duration: results.format.duration || 0,
+      },
+      videoStreams: results.streams
+        .filter((stream) => stream.codec_type === 'video')
+        .map((stream) => ({
+          height: stream.height || 0,
+          width: stream.width || 0,
+          codecName: stream.codec_name,
+          codecType: stream.codec_type,
+          frameCount: Number.parseInt(stream.nb_frames ?? '0'),
+          rotation: Number.parseInt(`${stream.rotation ?? 0}`),
+        })),
+      audioStreams: results.streams
+        .filter((stream) => stream.codec_type === 'audio')
+        .map((stream) => ({
+          codecType: stream.codec_type,
+          codecName: stream.codec_name,
+        })),
     };
   }
 
   transcode(input: string, output: string, options: string[]): Promise<void> {
     return new Promise((resolve, reject) => {
-      ffmpeg(input)
+      ffmpeg(input, { niceness: 10 })
         //
         .outputOptions(options)
         .output(output)