plugin_host

VST3 and CLAP plugin host for DAW applications in Rust. Scans, loads and processes third-party plugins with configurable sandboxing.

Features

• CLAP and VST3 — bridge architecture ready for both formats via libloading
• Plugin scanner — finds plugins in standard OS paths (Linux, macOS, Windows)
• Sandboxing — configurable in-process or out-of-process per plugin
• Auto-restart — out-of-process plugins that crash are restarted automatically
• Parameter automation — normalized parameter values with descriptor metadata
• Preset management — save/load plugin state as named presets
• Bypass — hardware-style bypass with direct input→output passthrough
• Project serialization — save_state() / load_state() for project_io integration

Usage

use plugin_host::{PluginRegistry, PluginScanner};
use plugin_host::sandbox::SandboxConfig;

// Scan system for plugins
let scanner = PluginScanner::new();
let mut registry = PluginRegistry::new();
let stats = registry.scan_system(&scanner);
println!("Found {} plugins", stats.found);

// Search the registry
let compressors = registry.search("compressor");
let instruments = registry.instruments();

// Instantiate a plugin (bridge implementation connects here)
// instance.activate(44100.0, 64, 512);
// instance.process(&mut process_data);
// instance.save_preset("My Sound");

Sandbox modes

Bridge status

The ClapBridge and Vst3Bridge structs are fully scaffolded with all required method stubs and inline comments mapping each method to its exact C API call. Connect clap-sys or vst3-sys to activate.

Part of the DAW crate ecosystem

audio_core_dsp
midi_clock_sync
audio_graph
event_queue
mixer
piano_roll
plugin_host      ← you are here
project_io

License

MIT