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
This fix is long coming. For a long time due to the addition of a
global user cache, the on_member_update event would only have the
updated user in the very first dispatch due to a quirk in the reference
only being updated once.
In order to fix this issue two things had to change:
1. There had to be a new event, `on_user_update` to complement
the equivalent member event.
2. Unnecessary copies of User had to be removed to compensate for the
performance hit from the diffing.
While doing these two fixes I also re-evaluated some more unnecessary
copies done during the PRESENCE_UPDATE to add member case while
fetch_offline_members=False is set or due to chunking issues. The
number of copies was brought down from 2 to 1, discounting the original
Member creation. Unsure on the benefits of this one, however.
N.B: this doesn't change the pre-existing behaviour of on_member_update
Change `parse_message_delete_bulk` to not dispatch individual
`message_delete` events, and instead `bulk_message_delete`. Also make
`raw_bulk_message` delete and `raw_message_delete` have message
objects attached.
Fixes#1807
Most assets now return a new class named `Asset`. This allows for the
assets to be consistently saved via a `save` method instead of special
casing for `Attachment`.
`AppInfo` is no longer a namedtuple it is a fully documented dataclass,
as well as having the state attached to it.
Fixes#1997
This adds the following information.
* `PartialInviteGuild` to replace `Object` patching
* `PartialInviteChannel` to replace `Object` patching
* Invite.approximate_member_count and Invite.approximate_presence_count
The new partial objects provide better documentation on what is
expected when you fetch random invites.
Fixes#1830
