feat(server): advanced settings for transcoding (#3775)

* set stream with `-map` flag

* updated tests

* fixed audio stream mapping

* added bframe setting to config

* updated api

* added b-frame option in dashboard

* updated tests and formatting

* "Advanced" section for FFmpeg with extra options

* updated api

* updated tests and formatting

* styling

* made vp9 bitstream filters conditional on b-frames

* fixed gop size condition

* add cq override

* simplified isEdited conditions

* simplified conditional flow for cq mode

* fixed dto

* clarified cq mode in description

* formatting

* added npl setting

* Adjusted b-frame title and description

* fixed rebase

* changed defaults for pascal compatibility, added temporal aq setting

* updated api

* added temporal aq to ui

* polished dashboard

* formatting

server/src/domain/system-config/system-config.service.spec.ts

@@ -1,5 +1,6 @@
 import {
   AudioCodec,
+  CQMode,
   SystemConfig,
   SystemConfigEntity,
   SystemConfigKey,
@@ -41,6 +42,12 @@ const updatedConfig = Object.freeze<SystemConfig>({
     targetResolution: '720',
     targetVideoCodec: VideoCodec.H264,
     maxBitrate: '0',
+    bframes: -1,
+    refs: 0,
+    gopSize: 0,
+    npl: 0,
+    temporalAQ: false,
+    cqMode: CQMode.AUTO,
     twoPass: false,
     transcode: TranscodePolicy.REQUIRED,
     accel: TranscodeHWAccel.DISABLED,