Audio events (#6848)

* Initial audio classification model implementation

* fix mypy

* Keep audio labelmap local

* Cleanup

* Start adding config for audio

* Add the detector

* Add audio detection process keypoints

* Build out base config

* Load labelmap correctly

* Fix config bugs

* Start audio process

* Fix startup issues

* Try to cleanup restarting

* Add ffmpeg input args

* Get audio detection working

* Save event to db

* End events if not heard for 30 seconds

* Use not heard config

* Stop ffmpeg when shutting down

* Fixes

* End events correctly

* Use api instead of event queue to save audio events

* Get events working

* Close threads when stop event is sent

* remove unused

* Only start audio process if at least one camera is enabled

* Add const for float

* Cleanup labelmap

* Add audio icon in frontend

* Add ability to toggle audio with mqtt

* Set initial audio value

* Fix audio enabling

* Close logpipe

* Isort

* Formatting

* Fix web tests

* Fix web tests

* Handle cases where args are a string

* Remove log

* Cleanup process close

* Use correct field

* Simplify if statement

* Use var for localhost

* Add audio detectors docs

* Add restream docs to mention audio detection

* Add full config docs

* Fix links to other docs

---------

Co-authored-by: Jason Hunter <hunterjm@gmail.com>

frigate/events/external.py

@@ -67,11 +67,10 @@ class ExternalEventProcessor:
 
         return event_id
 
-    def finish_manual_event(self, event_id: str) -> None:
+    def finish_manual_event(self, event_id: str, end_time: float) -> None:
         """Finish external event with indeterminate duration."""
-        now = datetime.datetime.now().timestamp()
         self.queue.put(
-            (EventTypeEnum.api, "end", None, {"id": event_id, "end_time": now})
+            (EventTypeEnum.api, "end", None, {"id": event_id, "end_time": end_time})
         )
 
     def _write_images(