As of v0.9.1, `xsalsa20poly1305` has been deprecated. This is a mostly seamless replacement, as it appears to be the same crate authors / code / etc.
Co-authored-by: Kyle Simpson <kyleandrew.simpson@gmail.com>
This PR implements a custom scheduler for audio threads, which reduces thread use and (often) memory consumption.
To save threads and memory (e.g., packet buffer allocations), Songbird parks Mixer tasks which do not have any live Tracks.
These are now all co-located on a single async 'Idle' task.
This task is responsible for managing UDP keepalive messages for each task, maintaining event state, and executing any Mixer task messages.
Whenever any message arrives which adds a `Track`, the mixer task is moved to a live thread.
The Idle task inspects task counts and execution time on each thread, choosing the first live thread with room, and creating a new one if needed.
Each live thread is responsible for running as many live mixers as it can in a single tick every 20ms: this currently defaults to 16 mixers per thread, but is user-configurable.
A live thread also stores RTP packet blocks to be written into by each sub-task.
Each live thread has a conservative limit of 18ms that it will aim to stay under: if all work takes longer than this, it will offload the task with the highest mixing cost once per tick onto another (possibly new) live worker thread.
This patch changes around quite a few things.
The main entrypoint for twilight besides process will now be the
TwilightMap which concists of command senders for each shard.
This simplifies parts of the code as there is not any difference
between shards and clusters anymore.
Symphonia v0.5.2 has all the API changes and fixes we were depending on, which leaves next one step closer to publishable.
Tested using `cargo make ready`.
This PR Introduces a new `VoiceTick` event which collects and reorders all RTP packets to smooth over network instability, as well as to synchronise user audio streams. Raw packet events have been moved to `RtpPacket`, while `SpeakingUpdate`s have been removed as they can be easily computed using the `silent`/`speaking` audio maps included in each event.
Closes#146.
`youtube-dl` has a tendency to return mp4 files containing video and audio data vs `yt-dlp`. Naturally, the default stream in such cases will be the video data, so we fail to create a decoder.
This PR changes `LiveInput::promote` to first attempt to instantiate a decoder for the default track. If this fails to do so, then we reattempt this for all available tracks until one can be found. Previously, this method chose the default (or first available) track ID, and then failed if *that* track could not be decoded even if a compatible stream existed.
This was tested using `cargo make ready`, as well as manually verifying and adding a test case with a simple mp4 file.
Adds the "receive" feature, which is disabled by default. When this is disabled, the UDP receive task is not compiled and not run, and as an optimisation the UDP receive buffer size is set to 0. All related events are also removed.
This also removes the UDP Tx task, and moves packet and keepalive sends back into the mixer thread. This allows us to entirely remove channels and various allocations between the mixer and an async task created only for sending data (i.e., fewer memcopies).
If "receive" is enabled, UDP sends are now non-blocking due to technical constraints -- failure to send is non-fatal, but *will* drop affected packets. Given that blocking on a UDP send indicates that the OS cannot clear send buffers fast enough, this should alleviate OS load.
Closes#131.
All dependencies have been moved to the new "dep:x" and "x?/feature" syntax to remove the bloat from the docs.rs/crates.io/lib.rs feature panes.
Accordingly, this lets us break "rustls" and "native" out from annoying hybrids like "serenity-rustls" or "twilight-native" -- specify your library and your backend, and it should just work.
The complete list of features is now: driver, gateway, serenity, twilight, rustls, native, builtin-queue, simd-json, internals (plus "default" and "full-doc").
This places songbird, serenity, and twilight onto the same WS library, hopefully reducing the compile overhead for everyone.
Tested using `cargo make ready` and by running `examples/voice`.
Closes#129.
This PR adds support for the simd-json library whenever decoding or encoding JSON responses. This may be enabled independently of serenity and twilight support for SIMD acceleration.
Co-authored-by: Kyle Simpson <kyleandrew.simpson@gmail.com>
This extensive PR rewrites the internal mixing logic of the driver to use symphonia for parsing and decoding audio data, and rubato to resample audio. Existing logic to decode DCA and Opus formats/data have been reworked as plugins for symphonia. The main benefit is that we no longer need to keep yt-dlp and ffmpeg processes alive, saving a lot of memory and CPU: all decoding can be done in Rust! In exchange, we now need to do a lot of the HTTP handling and resumption ourselves, but this is still a huge net positive.
`Input`s have been completely reworked such that all default (non-cached) sources are lazy by default, and are no longer covered by a special-case `Restartable`. These now span a gamut from a `Compose` (lazy), to a live source, to a fully `Parsed` source. As mixing is still sync, this includes adapters for `AsyncRead`/`AsyncSeek`, and HTTP streams.
`Track`s have been reworked so that they only contain initialisation state for each track. `TrackHandles` are only created once a `Track`/`Input` has been handed over to the driver, replacing `create_player` and related functions. `TrackHandle::action` now acts on a `View` of (im)mutable state, and can request seeks/readying via `Action`.
Per-track event handling has also been improved -- we can now determine and propagate the reason behind individual track errors due to the new backend. Some `TrackHandle` commands (seek etc.) benefit from this, and now use internal callbacks to signal completion.
Due to associated PRs on felixmcfelix/songbird from avid testers, this includes general clippy tweaks, API additions, and other repo-wide cleanup. Thanks go out to the below co-authors.
Co-authored-by: Gnome! <45660393+GnomedDev@users.noreply.github.com>
Co-authored-by: Alakh <36898190+alakhpc@users.noreply.github.com>
This handles twilight's migration to a unified `Id` type, which is the only design change needing any handling on our part. All our `From`/`Into`s are covered now, and deprecated type aliases are no longer used.
This was tested using `cargo make ready` and by manually running "examples/twilight".
This PR adds support for twilight v0.8, mainly adapting to significant API changes introduced by v0.7. As a result of these, twilight no longer accepts arbitrary JSON input, so it seemed sensible to adapt our `Shard` design to no longer require the same.
Adding to this, I've added in a trait to allow an arbitrary `Shard` to be installed, given only an implementation of a method to send a `VoiceStateUpdate`. Together, `Sharder::Generic` (songbird::shards::VoiceUpdate) and `Shard::Generic` (songbird::shards::GenericSharder) should allow any library to be hooked in to Songbird.
This PR was tested using `cargo make ready` and by manually testing `examples/twilight`.
Flume's latest patch version requires toe new Rust 2021 edition, which is at odds with the current MSRV. This was tested using `cargo msrv` on the default feature set.
Includes two more small changes too small to warrant PRs.
1. Removes the `shard_count` parameter from `Songbird::twilight` & `Songbird::twilight_from_config` since the cluster contains it.
2. Drops the `Arc` wrapper around `Songbird` to match against an upcoming twilight 0.7 change
