rpi: switch default autofocus mode to 'continuous' (#2591)

internal/conf/conf_test.go

@@ -71,7 +71,7 @@ func TestConfFromFile(t *testing.T) {
 			RPICameraBitrate:           1000000,
 			RPICameraProfile:           "main",
 			RPICameraLevel:             "4.1",
-			RPICameraAfMode:            "auto",
+			RPICameraAfMode:            "continuous",
 			RPICameraAfRange:           "normal",
 			RPICameraAfSpeed:           "normal",
 			RPICameraTextOverlay:       "%Y-%m-%d %H:%M:%S - MediaMTX",

internal/conf/path.go

@@ -173,7 +173,7 @@ func (pconf *Path) setDefaults() {
 	pconf.RPICameraBitrate = 1000000
 	pconf.RPICameraProfile = "main"
 	pconf.RPICameraLevel = "4.1"
-	pconf.RPICameraAfMode = "auto"
+	pconf.RPICameraAfMode = "continuous"
 	pconf.RPICameraAfRange = "normal"
 	pconf.RPICameraAfSpeed = "normal"
 	pconf.RPICameraTextOverlay = "%Y-%m-%d %H:%M:%S - MediaMTX"

mediamtx.yml

@@ -431,7 +431,7 @@ pathDefaults:
   rpiCameraLevel: '4.1'
   # Autofocus mode
   # values: auto, manual, continuous
-  rpiCameraAfMode: auto
+  rpiCameraAfMode: continuous
   # Autofocus range
   # values: normal, macro, full
   rpiCameraAfRange: normal