vicrodh
68b6cfbcfa
Completes the JACK output on top of the foundation (fbc03f41):
- StreamType::Jack + the player dispatch (backend==Jack -> JackStream).
- PlaybackEngine::Jack: a feeder thread (mirrors AlsaDirect) that resamples each
source to the JACK graph rate (UniformSourceIterator, stereo) and writes it to
a lock-free f32 SPSC ring (ringbuf); wired at the 4 engine-creation sites.
- jack_backend.rs: f32-native ring (fixes a byte-alignment white-noise bug) plus
auto-connect of qbz:out_FL/FR to the physical playback on activation, so audio
reaches the hardware without a patchbay (a user may re-patch freely).
- Re-enabled the available_backends push (JACK is now offered in the selector).
Verified on hardware: select JACK -> QBZ registers as client 'qbz' with stable
ports qbz:out_FL/FR (client.api=jack) -> music plays through the DAC, resampled
to the graph rate (NOT bit-perfect; BitPerfectMode::Disabled, as designed). The
ALSA-exclusive / DAC-passthrough bit-perfect paths are untouched.
Slice 3.2 (pending, separate): JACK<->passthrough/exclusive mutual-exclusion UI,
the bit-perfect-OFF note, runtime graph-rate-change callback, mono/multichannel.
cc
64 lines
2.0 KiB
TOML
64 lines
2.0 KiB
TOML
[package]
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name = "qbz-audio"
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version.workspace = true
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edition.workspace = true
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license.workspace = true
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description = "Audio backend system for QBZ - bit-perfect playback"
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[dependencies]
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qbz-models = { path = "../qbz-models" }
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# Async
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tokio = { workspace = true }
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async-trait = { workspace = true }
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# Logging
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log = { workspace = true }
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# Serialization
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serde = { workspace = true }
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serde_json = { workspace = true }
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# Error handling
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thiserror = { workspace = true }
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# Audio playback (f32 pipeline is now upstream in rodio 0.22)
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rodio = { version = "0.22", features = ["symphonia-all"] }
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# Audio analysis
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symphonia = { workspace = true }
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ebur128 = "0.1"
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rustfft = "6.4"
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# Database for loudness cache
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rusqlite = { version = "0.31", features = ["bundled"] }
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# System directories
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dirs = "6"
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# Lock-free SPSC ring buffer (f32-native) for the JACK feeder -> RT callback
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# handoff (#263 Tier 3). f32 elements avoid any byte/alignment handling.
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ringbuf = "0.4"
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[target.'cfg(target_os = "linux")'.dependencies]
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# ALSA for direct hardware access (bit-perfect)
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alsa = "0.11"
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# alsa-sys: direct FFI for snd_lib_error_set_handler (custom error routing).
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# Kept in lockstep with alsa (0.11 -> alsa-sys 0.4); a single alsa-sys is
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# required because of the `links = "alsa"` constraint shared with cpal.
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alsa-sys = "0.4"
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# zbus for org.freedesktop.ReserveDevice1 D-Bus client (device reservation).
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# Pinned to v4 to share the transitive copy already pulled in by
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# secret-service/souvlaki and avoid duplicate zbus compiles.
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zbus = { version = "4", default-features = false, features = ["tokio"] }
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# JACK native backend (#263 Tier 3): QBZ as a first-class JACK client with stable
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# ports. Links libjack (provided by pipewire-jack on the rig). TODO(distribution):
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# feature-gate for Flatpak/distro builds that may not ship libjack — not blocking
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# while Tauri isn't being released.
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jack = "0.13"
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[target.'cfg(target_os = "macos")'.dependencies]
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# CoreAudio for device probing, sample rate switching, and (future) hog mode / exclusive mode
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coreaudio-rs = "0.14.1"
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objc2-core-audio = "0.3.2"
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