Feature: automatic camera resolution configuration (#6810)

* Add auto configuration for height, width and fps in detect role

* Add auto-configuration for detect width, height, and fps for input roles with detect in the CameraConfig class in config.py

* Refactor code to retrieve video properties from input stream in CameraConfig class and add optional parameter to retrieve video duration in get_video_properties function

* format

* Set default detect dimensions to 1280x720 and update DetectConfig to use the defaults

* Revert "Set default detect dimensions to 1280x720 and update DetectConfig to use the defaults"

This reverts commit a1aed0414d.

* Add default detect dimensions if autoconfiguration failed and log a warning message

* fix warn message spelling on frigate/config.py

Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>

* Ensure detect height and width are not None before using them in camera configuration

* docs: initial commit

* rename streamInfo to stream_info

Co-authored-by: Blake Blackshear <blakeb@blakeshome.com>

* Apply suggestions from code review

Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>

* Update docs

* handle case then get_video_properties returns 0x0 dimension

* Set detect resolution based on stream properties if available, else apply default values

* Update FrigateConfig to set default values for stream_info if resolution detection fails

* Update camera detection dimensions based on stream information if available

---------

Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>
Co-authored-by: Blake Blackshear <blakeb@blakeshome.com>

docs/docs/configuration/camera_specific.md

@@ -80,8 +80,8 @@ cameras:
     rtmp:
       enabled: False # <-- RTMP should be disabled if your stream is not H264
     detect:
-      width: # <---- update for your camera's resolution
-      height: # <---- update for your camera's resolution
+      width: # <- optional, by default Frigate tries to automatically detect resolution 
+      height: # <- optional, by default Frigate tries to automatically detect resolution 
 ```
 
 ### Blue Iris RTSP Cameras

docs/docs/configuration/cameras.md

@@ -33,8 +33,8 @@ cameras:
           roles:
             - record
     detect:
-      width: 1280
-      height: 720
+      width: 1280 # <- optional, by default Frigate tries to automatically detect resolution 
+      height: 720 # <- optional, by default Frigate tries to automatically detect resolution 
 ```
 
 Additional cameras are simply added to the config under the `cameras` entry.

docs/docs/configuration/index.md

@@ -19,9 +19,6 @@ cameras:
         - path: rtsp://viewer:{FRIGATE_RTSP_PASSWORD}@10.0.10.10:554/cam/realmonitor?channel=1&subtype=2
           roles:
             - detect
-    detect:
-      width: 1280
-      height: 720
 ```
 
 ### VSCode Configuration Schema

docs/docs/development/contributing.md

@@ -68,10 +68,6 @@ cameras:
           input_args: -re -stream_loop -1 -fflags +genpts
           roles:
             - detect
-    detect:
-      height: 1080
-      width: 1920
-      fps: 5
 ```
 
 These input args tell ffmpeg to read the mp4 file in an infinite loop. You can use any valid ffmpeg input here.

docs/docs/guides/getting_started.md

@@ -22,8 +22,6 @@ cameras:
             - detect
     detect:
       enabled: False # <---- disable detection until you have a working camera feed
-      width: 1280 # <---- update for your camera's resolution
-      height: 720 # <---- update for your camera's resolution
 ```
 
 ### Step 2: Start Frigate
@@ -105,9 +103,6 @@ cameras:
         - path: rtsp://10.0.10.10:554/rtsp
           roles:
             - detect
-    detect:
-      width: 1280
-      height: 720
     motion:
       mask:
         - 0,461,3,0,1919,0,1919,843,1699,492,1344,458,1346,336,973,317,869,375,866,432