Feature: Adding support for retrieval of ASIO channel names - 0.3.1 - #1303
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SpruceCloud wants to merge 2 commits into
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Feature: Adding support for retrieval of ASIO channel names - 0.3.1#1303SpruceCloud wants to merge 2 commits into
SpruceCloud wants to merge 2 commits into
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An ASIO driver names its channels, and for aggregating drivers such as
ASIO4ALL — which concatenates the channels of whichever WDM devices are
enabled in its control panel — those names are the only stable way to map
a channel index to physical hardware. The channel count and ordering can
change between sessions, so a host that persists "output channels 4 and 5"
may address a different pair of speakers on the next launch.
`asio-sys` already called `ASIOGetChannelInfo`, but only privately, and
`stream_data_type` discarded everything but channel 0's sample type.
Add `ChannelInfo` plus `input_channel_info`, `output_channel_info`,
`input_channel_infos` and `output_channel_infos` on `Driver`, whose
existence already proves the driver is loaded and initialised. Index bounds
are checked before calling into the SDK, since drivers are not required to
validate them. `sample_type` is an `Option` rather than reusing
`stream_data_type`'s `expect`, so an unfamiliar format enum cannot panic a
name lookup.
Purely additive: no signature or behaviour changes to existing items.
Verified with `cargo run --example enumerate` against ASIO4ALL v2, which
reports the underlying WDM pin names ("HD Audio output 1", ...).
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Bump `asio-sys` to 0.3.1 for the additive `ChannelInfo` API, update cpal's dependency lower bound to match, and record the change in the changelog. Use `i32` rather than `c_long` in the new public signatures, matching the convention adopted for the rest of the public surface in 0.3.0. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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