Add libopus DLLs for ease of use.

MANIFEST.in

@@ -1,3 +1,4 @@
 include README.md
 include LICENSE
 include requirements.txt
+include discord/bin/*.dll

discord/opus.py

@@ -29,6 +29,8 @@ import ctypes.util
 import array
 from .errors import DiscordException
 import logging
+import sys
+import os.path
 
 log = logging.getLogger(__name__)
 c_int_ptr = ctypes.POINTER(ctypes.c_int)
@@ -75,8 +77,14 @@ def libopus_loader(name):
     return lib
 
 try:
-    _lib = libopus_loader(ctypes.util.find_library('opus'))
-except:
+    if sys.platform == 'win32':
+        _basedir = os.path.dirname(os.path.abspath(__file__))
+        _bitness = 'x64' if sys.maxsize > 2**32 else 'x86'
+        _filename = os.path.join(_basedir, 'bin', 'libopus-0.{}.dll'.format(_bitness))
+        _lib = libopus_loader(_filename)
+    else:
+        _lib = libopus_loader(ctypes.util.find_library('opus'))
+except Exception as e:
     _lib = None
 
 def load_opus(name):

discord/voice_client.py

@@ -54,10 +54,9 @@ import nacl.secret
 
 log = logging.getLogger(__name__)
 
-from . import utils
+from . import utils, opus
 from .gateway import *
 from .errors import ClientException, InvalidArgument
-from .opus import Encoder as OpusEncoder
 
 class StreamPlayer(threading.Thread):
     def __init__(self, stream, encoder, connected, player, after, **kwargs):
@@ -176,7 +175,7 @@ class VoiceClient:
         self.endpoint = data.get('endpoint')
         self.sequence = 0
         self.timestamp = 0
-        self.encoder = OpusEncoder(48000, 2)
+        self.encoder = opus.Encoder(48000, 2)
         log.info('created opus encoder with {0.__dict__}'.format(self.encoder))
 
     @property
@@ -496,7 +495,7 @@ class VoiceClient:
         if channels not in (1, 2):
             raise InvalidArgument('Channels must be either 1 or 2.')
 
-        self.encoder = OpusEncoder(sample_rate, channels)
+        self.encoder = opus.Encoder(sample_rate, channels)
         log.info('created opus encoder with {0.__dict__}'.format(self.encoder))
 
     def create_stream_player(self, stream, *, after=None):