Struct GainProcessor 

pub struct GainProcessor { /* private fields */ }

Reference gain processor implementation for VstKit.

This struct maintains processing state and provides a simple gain effect. All methods are designed to be real-time safe (no allocations, no locks, no syscalls).

This serves as a reference implementation for the Processor trait.

Implementations

impl GainProcessor

pub fn new(sample_rate: f32) -> Self

Create a new gain processor with the given sample rate.

Arguments

• sample_rate - The audio sample rate in Hz (e.g., 44100.0)

pub fn set_sample_rate(&mut self, sample_rate: f32)

Update the sample rate.

Call this when the host changes sample rate (e.g., in initialize()).

Arguments

• sample_rate - The new sample rate in Hz

pub fn sample_rate(&self) -> f32

Get the current sample rate.

pub fn process(&self, left: &mut [f32], right: &mut [f32], gain_db: f32)

Process stereo audio buffers in-place.

Arguments

• left - Left channel audio buffer (modified in-place)
• right - Right channel audio buffer (modified in-place)
• gain_db - Gain to apply in decibels

Real-Time Safety

This method is real-time safe:

• No allocations
• No locks
• No syscalls
• No panics (uses debug_assert only)