fix gain setter, add public_packet methods, update readme

fix gain setter for strips.

add accessor methods for public_packet.

update readme

README.md

@@ -117,6 +117,7 @@ The following properties are gettable and settable:
 - `mute`: boolean
 - `label`: string
 - `gainlayer`: float, -60 to 12
+- `gain`: float, -60 to 12
 - Output mapping (e.g. `A1`, `B3`, etc.): boolean, depends on the Voicemeeter kind
 
 The following properties are settable:

tests/__init__.py

@@ -9,18 +9,19 @@ _kind = 'potato'
 opts = {
     'ip': 'ws.local',
     'streamname': 'testing',
-    'port': 6980,
+    'port': 6990,
     'bps': 0,
+    'channel': 3
 }
 
 vbanrs = {kind.id: vban_cmd.connect(_kind, **opts) for kind in kinds.all}
 tests = vbanrs[_kind]
 
 def setup_package():
+    tests._modes = Modes()
     tests._rt_packet_socket.bind((socket.gethostbyname(socket.gethostname()), tests._port))
     tests.worker = Thread(target=tests._send_register_rt, daemon=True)
     tests.worker.start()
-    tests._modes = Modes()
 
 def teardown_package():
     tests._rt_packet_socket.close()

vban_cmd/strip.py

@@ -80,7 +80,7 @@ class InputStrip(Channel):
 
     @gain.setter
     def gain(self, val: float):
-        self.gainlayer[0].gain = val
+        self.setter('gain', val)
 
 
 class PhysicalInputStrip(InputStrip):

vban_cmd/vban_cmd.py

@@ -48,11 +48,13 @@ class VbanCmd(abc.ABC):
         is_writable = [self._rt_register_socket, self._rt_packet_socket, self._sendrequest_string_socket]
         is_error = []
         self.ready_to_read, self.ready_to_write, in_error = select.select(is_readable, is_writable, is_error, 60)
+        self._public_packet = None
 
     def __enter__(self):
         self._rt_packet_socket.bind((socket.gethostbyname(socket.gethostname()), self._port))
         worker = Thread(target=self._send_register_rt, daemon=True)
         worker.start()
+        self._public_packet = self._get_rt()
         return self
 
     def _send_register_rt(self):
@@ -99,7 +101,10 @@ class VbanCmd(abc.ABC):
 
     @property
     def public_packet(self):
-        return self._get_rt()
+        return self._public_packet or self._get_rt()
+    @public_packet.setter
+    def public_packet(self, val):
+        self._public_packet = val
 
     def _get_rt(self):
         def fget():