Module lockfree_params 

Lock-free Parameter Structures

Provides snapshot-based parameter passing from main thread to audio thread. This eliminates the need for mutexes in the audio callback, ensuring that DSP processing is never blocked or skipped due to lock contention.

Design Pattern

Processor parameters are published as immutable snapshots through ArcSwap. Setters patch snapshots with ArcSwap::rcu, so concurrent UI/control writes retry instead of silently overwriting each other’s fields. The audio thread observes either the old or the new complete snapshot, never a mix of fields from both.

Structs

AtomicCrossfeedParams

Atomic crossfeed parameters

AtomicDynamicLoudnessParams

Atomic dynamic loudness parameters

AtomicDynamicLoudnessTelemetry

Real-time dynamic loudness telemetry published by audio thread.

AtomicEqParams

EQ parameters published as complete immutable snapshots.

AtomicNoiseShaperParams

Atomic noise shaper parameters

AtomicPeakLimiterParams

Atomic peak limiter parameters

AtomicSaturationParams

Saturation parameters published as complete immutable snapshots.

AtomicVolumeParams

Atomic volume parameters

CrossfeedParamsSnapshot

Crossfeed parameter snapshot

DynamicLoudnessParamsSnapshot

Dynamic loudness parameter snapshot

EqParamsSnapshot

EQ parameter snapshot for audio thread

NoiseShaperParamsSnapshot

Noise shaper parameter snapshot

PeakLimiterParamsSnapshot

Peak limiter parameter snapshot

SaturationParamsSnapshot

Saturation parameter snapshot

VolumeParamsSnapshot

Volume parameter snapshot

Enums

SaturationTypeValue

Saturation type enumeration for lock-free parameter passing.

Constants

EQ_BANDS

EQ band count constant