add audio_filter ffi

Author: typester

livekit-rtc/livekit/rtc/audio_filter.py

@@ -0,0 +1,20 @@
+from ._ffi_client import FfiClient, FfiHandle
+from ._proto import ffi_pb2 as proto_ffi
+
+class AudioFilter:
+    def __init__(
+        self,
+        path: str,
+    ) -> None:
+        self._path = path
+
+        req = proto_ffi.FfiRequest()
+        req.load_audio_filter_plugin.plugin_path = path
+
+        resp = FfiClient.instance.request(req)
+
+        self._ffi_handle_id = resp.load_audio_filter_plugin.handle.id
+        self._ffi_handle = FfiHandle(resp.load_audio_filter_plugin.handle.id)
+
+    def handle(self) -> int:
+        return self._ffi_handle_id