Set the RTP recv/send buffer to a bigger size.

src/aioice/ice.py

@@ -854,9 +854,14 @@ async def get_component_candidates(
         for address in addresses:
             # create transport
             try:
-                _, protocol = await loop.create_datagram_endpoint(
+                transport, protocol = await loop.create_datagram_endpoint(
                     lambda: StunProtocol(self), local_addr=(address, 0)
                 )
+                sock = transport.get_extra_info("socket")
+                if sock is not None:
+                    sock.setsockopt(
+                        socket.SOL_SOCKET, socket.SO_RCVBUF, turn.UDP_SOCKET_BUFFER_SIZE
+                    )
             except OSError as exc:
                 self.__log_info("Could not bind to %s - %s", address, exc)
                 continue

src/aioice/turn.py

@@ -1,6 +1,7 @@
 import asyncio
 import hashlib
 import logging
+import socket
 import struct
 import time
 from typing import Any, Callable, Dict, List, Optional, Text, Tuple, Union, cast
@@ -14,6 +15,7 @@
 DEFAULT_ALLOCATION_LIFETIME = 600
 TCP_TRANSPORT = 0x06000000
 UDP_TRANSPORT = 0x11000000
+UDP_SOCKET_BUFFER_SIZE = 262144
 
 
 def is_channel_data(data: bytes) -> bool:
@@ -406,6 +408,9 @@ async def create_turn_endpoint(
             ),
             remote_addr=server_addr,
         )
+        sock = inner_transport.get_extra_info("socket")
+        if sock is not None:
+            sock.setsockopt(socket.SOL_SOCKET, socket.SO_RCVBUF, UDP_SOCKET_BUFFER_SIZE)
 
     try:
         protocol = protocol_factory()