Increase genlock threshold to 1%

src/defs.h

@@ -427,7 +427,7 @@ typedef struct {
 #define GENLOCK_THRESHOLDS {0, 5, 10, 16, 25, 35}
 #define GENLOCK_LOCKED_THRESHOLD 2
 #define GENLOCK_FRAME_DELAY 12
-#define GENLOCK_SLEW_RATE_THRESHOLD 5000
+#define GENLOCK_SLEW_RATE_THRESHOLD 10000
 
 #define MEASURE_NLINES 100
 #define PLL_PPM_LO 1