Module process_context 

Transport and process context for audio plugins.

This module provides Transport for DAW timing/playback state and ProcessContext which bundles transport with sample rate and buffer size.

Example: Tempo-Synced Effect

fn process(&mut self, buffer: &mut Buffer, _aux: &mut AuxiliaryBuffers, context: &ProcessContext) {
    // Calculate LFO rate synced to tempo
    let lfo_hz = if let Some(tempo) = context.transport.tempo {
        tempo / 60.0 / 4.0  // 1 cycle per 4 beats
    } else {
        2.0  // Fallback to 2 Hz
    };

    let samples_per_cycle = context.sample_rate / lfo_hz;
    // ...
}

Example: Accessing MIDI CC Values

fn process(&mut self, buffer: &mut Buffer, _aux: &mut AuxiliaryBuffers, context: &ProcessContext) {
    if let Some(cc) = context.midi_cc() {
        let pitch_bend = cc.pitch_bend();  // -1.0 to 1.0
        let mod_wheel = cc.mod_wheel();    // 0.0 to 1.0
        let volume = cc.cc(7);             // 0.0 to 1.0
    }
}

Structs

ProcessContext

Complete processing context for a single process() call.

Transport

Host transport and timing information.

Enums

FrameRate

SMPTE frame rate for video synchronization.