feat: only call frame processor handlers if room is set

Author: 1egoman

livekit-rtc/livekit/rtc/audio_stream.py

@@ -252,15 +252,16 @@ def _set_room(self, room: Optional["Room"]) -> None:
 
         if self._processor:
             room = self._resolve_room()
-            if room and room._token is not None and room._server_url is not None:
-                self._processor._on_credentials_updated(token=room._token, url=room._server_url)
-
-            participant_identity, publication_sid = self._find_publication() or ("", "")
-            self._processor._on_stream_info_updated(
-                room_name=room.name if room is not None else "",  # FIXME: default value?
-                participant_identity=participant_identity,
-                publication_sid=publication_sid,
-            )
+            if room:
+                if room._token is not None and room._server_url is not None:
+                    self._processor._on_credentials_updated(token=room._token, url=room._server_url)
+
+                participant_identity, publication_sid = self._find_publication() or ("", "")
+                self._processor._on_stream_info_updated(
+                    room_name=room.name,
+                    participant_identity=participant_identity,
+                    publication_sid=publication_sid,
+                )
 
     def _resolve_room(self) -> Optional["Room"]:
         return self._room_ref() if self._room_ref is not None else None