Not overly proud of this implementation but this allows the library
to differentiate between a 4014 that means "move to another channel" or
"move nowhere". Sometimes the VOICE_STATE_UPDATE comes before the
actual websocket disconnect so special care had to be taken in that
case.
Fix#5904
Rework FFmpeg player and add FFmpegOpusAudio
I have extracted some of the base FFmpeg source code into its own
base class and reimplemented the PCM and the new Opus variants.
Support avconv probing
Also fix a few things
Update `__all__`
Fix the bugs
Rework probe functions and add factory function
Probing involves subprocess so it has been reworked into an async
factory function.
Add docs + a few tweaks
* Removed unnecessary read() and is_opus() functions from FFmpegAudio
* Clear self._stdout in cleanup()
* Add 20 second process communication timeout to probe functions
* Capped probe function bitrate values at 512
Change AudioPlayer to use more accurate, monotonic time.perf_counter()
Add lazy opus loading
The library now no longer loads libopus on import, only on
opus.Encoder creation or manually.
Fix review nits
- Update internals to be compatible with v4
- Adds multiple encryption mode support. Previously only `xsalsa20_poly1305` was supported. Now `xsalsa20_poly1305_suffix` is also supported.
Note: There is no (nice) way to manually select a mode. The user needn't worry about this however.
- Fixed speaking state bug. When you disconnected from a voice channel while a bot was playing, upon reconnect you would be unable to hear the bot. This was caused by bots not sending their speaking state while transmitting. Bots will now set their speaking state properly when transmitting.
Note: This does not account for sending actual silence, the speaking indicator will still be active.
Use bare raise statement when reraising the exception that occured, and
remove unused exception variables. Also remove a pointless exception
handler in discord.opus.
