Fix v4l2 signal threshold comparison

Former-commit-id: 698a22af752fc42e778e97587938ed6542653bd9

deploy/hyperion.tar.gz.REMOVED.git-id

@@ -1 +1 @@
-0172259694aa374d6ae32dcbd122a62ce5bd3b05
+90bef144811aa3c3db8620622b57e76f699f0121

include/utils/ColorRgb.h

@@ -55,3 +55,9 @@ inline bool operator<(const ColorRgb & lhs, const ColorRgb & rhs)
 {
 	return (lhs.red < rhs.red) && (lhs.green < rhs.green) && (lhs.blue < rhs.blue);
 }
+
+/// Compare operator to check if a color is 'smaller' than or 'equal' to another color
+inline bool operator<=(const ColorRgb & lhs, const ColorRgb & rhs)
+{
+	return (lhs.red <= rhs.red) && (lhs.green <= rhs.green) && (lhs.blue <= rhs.blue);
+}

libsrc/grabber/v4l2/V4L2Grabber.cpp

@@ -695,7 +695,7 @@ void V4L2Grabber::process_image(const uint8_t * data)
 
 			ColorRgb & rgb = image(xDest, yDest);
 			yuv2rgb(y, u, v, rgb.red, rgb.green, rgb.blue);
-			noSignal &= rgb < _noSignalThresholdColor;
+			noSignal &= rgb <= _noSignalThresholdColor;
 		}
 	}