Encoder error in new version of pymumble

[peylight]

Describe the bug
Seems new version pymumble have some issue with botamusique.
I'm using latest debian stable.
After update requirements i can not play music any more and i have this error:

[Jan 01 09:25:15 INFO] library: rebuild directory cache
[Jan 01 09:25:15 INFO] bot: botamusique version unknown, starting...
Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/lib/python3.7/threading.py", line 917, in _bootstrap_inner
    self.run()
  File "/home/botamusique/botamusique/venv/lib/python3.7/site-packages/pymumble_py3/mumble.py", line 134, in run
    self.loop()
  File "/home/botamusique/botamusique/venv/lib/python3.7/site-packages/pymumble_py3/mumble.py", line 215, in loop
    self.read_control_messages()
  File "/home/botamusique/botamusique/venv/lib/python3.7/site-packages/pymumble_py3/mumble.py", line 289, in read_control_messages
    self.dispatch_control_message(type, message)
  File "/home/botamusique/botamusique/venv/lib/python3.7/site-packages/pymumble_py3/mumble.py", line 431, in dispatch_control_message
    self.sound_output.set_default_codec(mess)
  File "/home/botamusique/botamusique/venv/lib/python3.7/site-packages/pymumble_py3/soundoutput.py", line 185, in set_default_codec
    self.create_encoder()
  File "/home/botamusique/botamusique/venv/lib/python3.7/site-packages/pymumble_py3/soundoutput.py", line 197, in create_encoder
    raise CodecNotSupportedError('')
pymumble_py3.errors.CodecNotSupportedError: ''

Affected version
I'm using latest stable version. I mean 7.2...

To Reproduce
Just try to run botamusique with latest version of requirements.

Expected behavior
run without problem.

[TerryGeng]

Did you install opus?

[peylight]

@TerryGeng
Of course, version 0.1.10-1
I was using it and I had no problem. until update to new version.
I check Centos, the same problem exist.

[TerryGeng]

I need more information to investigate. Would you set mumbleConnection to True in the [debug] section in your config file and post the output?

botamusique/configuration.example.ini

Lines 160 to 163 in 1af21a6

	[debug]
	# 'ffmpeg': Set ffmpeg to True if you want to display DEBUG level log of ffmpeg.
	#ffmpeg = False
	#mumbleConnection = False

[peylight]

[Jan 01 10:06:59 INFO] library: rebuild directory cache
[Jan 01 10:06:59 INFO] bot: botamusique version 7.2-10-g101391f, starting...
2021-01-01 10:06:59,852-PyMumble-DEBUG-Working in STEREO mode.
2021-01-01 10:06:59,855-PyMumble-DEBUG-connecting to mumble.4gamer.ir (SocketKind.SOCK_STREAM) on port 64738.
2021-01-01 10:06:59,934-PyMumble-DEBUG-sending: version: version: 66052
release: "PyMumble 1.5"
os: "PyMumble 1.5"
os_version: "Python 3.7.3 (default, Jul 25 2020, 13:03:44) \n[GCC 8.3.0] - Linux 4.19.0-13-amd64"

2021-01-01 10:06:59,935-PyMumble-DEBUG-sending message
2021-01-01 10:06:59,936-PyMumble-DEBUG-sending: authenticate: username: "MusicBot"
password: ""
tokens: ""
opus: true

2021-01-01 10:06:59,936-PyMumble-DEBUG-sending message
2021-01-01 10:06:59,936-PyMumble-DEBUG-entering loop
2021-01-01 10:06:59,937-PyMumble-DEBUG-read control connection
2021-01-01 10:06:59,937-PyMumble-DEBUG-dispatch control message
2021-01-01 10:06:59,937-PyMumble-DEBUG-message: Version : version: 66307

2021-01-01 10:07:00,004-PyMumble-DEBUG-read control connection
2021-01-01 10:07:00,004-PyMumble-DEBUG-dispatch control message
2021-01-01 10:07:00,005-PyMumble-DEBUG-message: CryptSetup : key: "\300\310l\nU\255E|\r/L\362%%\206\361"
client_nonce: "\354\377n.\205/\235\237\361\300\204\020\270 \322\000"
server_nonce: "o\030Z\340\325C\r\200\033\357\344c\204\366\276@"

2021-01-01 10:07:00,006-PyMumble-DEBUG-sending: ping: timestamp: 1609483020
tcp_packets: 0
tcp_ping_avg: 40.0
tcp_ping_var: 0.0

2021-01-01 10:07:00,006-PyMumble-DEBUG-sending message
2021-01-01 10:07:00,006-PyMumble-DEBUG-0
2021-01-01 10:07:00,006-PyMumble-DEBUG-read control connection
2021-01-01 10:07:00,007-PyMumble-DEBUG-dispatch control message
2021-01-01 10:07:00,007-PyMumble-DEBUG-message: CodecVersion : alpha: -2147483637
beta: -2147483632
prefer_alpha: true
opus: false

Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/lib/python3.7/threading.py", line 917, in _bootstrap_inner
    self.run()
  File "/home/botamusique/botamusique/venv/lib/python3.7/site-packages/pymumble_py3/mumble.py", line 134, in run
    self.loop()
  File "/home/botamusique/botamusique/venv/lib/python3.7/site-packages/pymumble_py3/mumble.py", line 215, in loop
    self.read_control_messages()
  File "/home/botamusique/botamusique/venv/lib/python3.7/site-packages/pymumble_py3/mumble.py", line 289, in read_control_messages
    self.dispatch_control_message(type, message)
  File "/home/botamusique/botamusique/venv/lib/python3.7/site-packages/pymumble_py3/mumble.py", line 431, in dispatch_control_message
    self.sound_output.set_default_codec(mess)
  File "/home/botamusique/botamusique/venv/lib/python3.7/site-packages/pymumble_py3/soundoutput.py", line 185, in set_default_codec
    self.create_encoder()
  File "/home/botamusique/botamusique/venv/lib/python3.7/site-packages/pymumble_py3/soundoutput.py", line 197, in create_encoder
    raise CodecNotSupportedError('')
pymumble_py3.errors.CodecNotSupportedError: ''

[TerryGeng]

As shown in this part:

prefer_alpha: true
opus: false

The mumble server you are connecting to request CELT encoder.

This can be due to:

1. The mumble server you are connecting to is too old, please check the version of it.
2. One client connected to the server is an old client that doesn't support Opus. In this case, the server will force everyone to use CELT instead. If you are the administrator of the server and would like to force people to use Opus, please refer to https://wiki.mumble.info/wiki/FAQ/English#How_do_I_force_usage_of_the_Opus_codec_.28opusthreshold.29.3F.

[peylight]

The server is using murmur 1.3.3
Some client using Humla Client (Android) 1.2.5 (Mumla 3.5.6)
Should i kick them to fix problem?

[TerryGeng]

Please refer to https://wiki.mumble.info/wiki/FAQ/English#How_do_I_force_usage_of_the_Opus_codec_.28opusthreshold.29.3F

I'd suggest you set this threshold to 0 (which essentially means kicking them out because they won't hear anything after forcing Opus usage).

What about using Plumble on Android? I checked Mumla supports Opus.

If you had any question about the codec, feel free to ask the Mumble community at channel #mumble at freenode.net.