[h264] do not use deprecated Packet.to_bytes method

src/aiortc/codecs/h264.py

@@ -295,7 +295,7 @@ def _encode_frame(
 
         data_to_send = b""
         for package in self.codec.encode(frame):
-            package_bytes = package.to_bytes()
+            package_bytes = bytes(package)
             if self.codec_buffering:
                 # delay sending to ensure we accumulate all packages
                 # for a given PTS

stubs/av/__init__.pyi

@@ -23,7 +23,7 @@ class Packet:
     pts: int
     time_base: Fraction
     def __init__(self, data: bytes) -> None: ...
-    def to_bytes(self) -> bytes: ...
+    def __bytes__(self) -> bytes: ...
 
 class AudioFormat:
     @property

tests/test_h264.py

@@ -3,6 +3,8 @@
 from contextlib import redirect_stderr
 from unittest import TestCase
 
+from av import Packet
+
 from aiortc.codecs import get_decoder, get_encoder, h264
 from aiortc.codecs.h264 import H264Decoder, H264Encoder, H264PayloadDescriptor
 from aiortc.jitterbuffer import JitterFrame
@@ -16,22 +18,15 @@
 )
 
 
-class DummyPacket:
-    def __init__(self, dts, pts):
-        self.dts = dts
-        self.pts = pts
-
-    def to_bytes(self):
-        return b""
-
-
 class FragmentedCodecContext:
     def __init__(self, orig):
         self.__orig = orig
 
     def encode(self, frame):
         packages = self.__orig.encode(frame)
-        packages.append(DummyPacket(packages[0].dts, packages[0].pts))
+        dummy = Packet()
+        dummy.pts = packages[0].pts
+        packages.append(dummy)
         return packages
 
     def __getattr__(self, name):