Lay groundwork for new Spotify API before removing `spirc`
* Add token provider
* Introduce HTTP client
* Introduce caching `ApResolver` component
* Remove `keymaster` and update example
* Use `PacketType` instead of hex identifiers
* Document new unknown packet 0xb6
Usage: `--format {F32|S16}`. Default is F32.
- Implemented for all backends, except for JACK audio which itself
only supports 32-bit output at this time. Setting JACK audio to S16
will panic and instruct the user to set output to F32.
- The F32 default works fine for Rodio on macOS, but not on Raspian 10
with Alsa as host. Therefore users on Linux systems are warned to set
output to S16 in case of garbled sound with Rodio. This seems an issue
with cpal incorrectly detecting the output stream format.
- While at it, DRY up lots of code in the backends and by that virtue,
also enable OggData passthrough on the subprocess backend.
- I tested Rodio, ALSA, pipe and subprocess quite a bit, and call on
others to join in and test the other backends.
Probably more simple than the previous approach which
doubles the code: Instead of implementing the `Open` trait,
we simply use custom SinkBuilder, one for the default host,
and one for the "jack" host.
A bunch of stuff got moved around; means of constructing audio output port
changed.
I simply used the commits, mostly from [1], to their examples to figure
out how to address the errors that resulted from compiling after the
version bump. It compiles cleanly again now.
[1]: https://github.com/RustAudio/rust-jack/pull/89
(needed to be done together)
there was no changelog for gstreamer and far too many commits to check
compatibility, but compiling with the gstreamer backend feature works fine
with these new versions.
requires adding dependency on libpulse-simple-sys since the PulseAudio
simple components were moved to their own crate (the original version
did not stick to the one crate per one system library rule).
this fixes the licensing compatibility issue discussed in #539 ([1])
(the original v0.0.0 was LGPL-3.0 licensed, while v1.11 onwards are
'MIT OR Apache-2.0').
[1]: https://github.com/librespot-org/librespot/issues/539
