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>

docs/docs/configuration/index.md

@@ -138,6 +138,20 @@ model:
   labelmap:
     2: vehicle
 
+# Optional: Audio Events Configuration
+# NOTE: Can be overridden at the camera level
+audio:
+  # Optional: Enable audio events (default: shown below)
+  enabled: False
+  # Optional: Configure the amount of seconds without detected audio to end the event (default: shown below)
+  max_not_heard: 30
+  # Optional: Types of audio to listen for (default: shown below)
+  listen:
+    - bark
+    - scream
+    - speech
+    - yell
+
 # Optional: logger verbosity settings
 logger:
   # Optional: Default log verbosity (default: shown below)