changes to level/gain properties in VbanRtPacket

level getters in strip, bus fetch from public packet if not in cache

vban_cmd/bus.py

@@ -32,17 +32,12 @@ class Bus(IRemote):
     def gain(self) -> float:
         def fget():
             val = self.public_packet.busgain[self.index]
-            if val < 10000:
-                return -val
-            elif val == ((1 << 16) - 1):
-                return 0
-            else:
-                return ((1 << 16) - 1) - val
+            if 0 <= val <= 1200:
+                return val * 0.01
+            return (((1 << 16) - 1) - val) * -0.01
 
         val = self.getter("gain")
-        if val is None:
-            val = fget() * 0.01
-        return round(val, 1)
+        return round(val if val else fget(), 1)
 
     @gain.setter
     def gain(self, val: float):
@@ -79,9 +74,16 @@ class BusLevel(IRemote):
     def getter(self):
         """Returns a tuple of level values for the channel."""
 
+        if self._remote.running and self._remote.event.ldirty:
+            return tuple(
+                round(i * -0.01, 1)
+                for i in self._remote.cache["bus_level"][self.range[0] : self.range[-1]]
+            )
         return tuple(
-            round(-i * 0.01, 1)
-            for i in self._remote.cache["bus_level"][self.range[0] : self.range[-1]]
+            round(i * -0.01, 1)
+            for i in self._remote._get_levels(self.public_packet)[1][
+                self.range[0] : self.range[-1]
+            ]
         )
 
     @property