Rework audio encoding for restream (#5092)

* Use memo for recordings timezone

* Add audio encoding field and simplify stream creation

* Update docs and tests

* Fix bad logic

docs/docs/configuration/index.md

@@ -356,8 +356,12 @@ rtmp:
 restream:
   # Optional: Enable the restream (default: True)
   enabled: True
-  # Optional: Force audio compatibility with browsers (default: shown below)
-  force_audio: True
+  # Optional: Set the audio codecs to restream with
+  # possible values are aac, copy, opus. Set to copy
+  # only to avoid transcoding (default: shown below)
+  audio_encoding:
+    - aac
+    - opus
   # Optional: Video encoding to be used. By default the codec will be copied but
   # it can be switched to another or an MJPEG stream can be encoded and restreamed
   # as h264 (default: shown below)

docs/docs/configuration/restream.md

@@ -7,9 +7,9 @@ title: Restream
 
 Frigate can restream your video feed as an RTSP feed for other applications such as Home Assistant to utilize it at `rtsp://<frigate_host>:8554/<camera_name>`. Port 8554 must be open. [This allows you to use a video feed for detection in Frigate and Home Assistant live view at the same time without having to make two separate connections to the camera](#reduce-connections-to-camera). The video feed is copied from the original video feed directly to avoid re-encoding. This feed does not include any annotation by Frigate.
 
-#### Force Audio
+#### Copy Audio
 
-Different live view technologies (ex: MSE, WebRTC) support different audio codecs. The `restream -> force_audio` flag tells the restream to make multiple streams available so that all live view technologies are supported. Some camera streams don't work well with this, in which case `restream -> force_audio` should be disabled.
+Different live view technologies (ex: MSE, WebRTC) support different audio codecs. The `restream -> audio_encoding` field tells the restream to make multiple streams available so that all live view technologies are supported. Some camera streams don't work well with this, in which case `restream -> audio_encoding` should be set to `copy` only.
 
 #### Birdseye Restream