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Phase 25: improve LADSPA discovery, parameter editing and plugin lifecycle

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Johannes Findeisen 2026-10-27 16:24:21 +01:00
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docs/ROADMAP.md
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@ -625,10 +625,35 @@ Make instruments and effects practical to use, manage, and diagnose in real proj
- Document plugin API versioning and compatibility expectations.
### Acceptance criteria
- Users can identify and manage loaded instruments and effects without editing configuration files.
- Missing or incompatible plugins produce actionable diagnostics and do not silently corrupt projects.
- Plugin state restoration is tested for supported plugin types.
- The engine remains safe if plugin initialization or processing fails, within the documented failure model.
- [x] Users can identify and manage loaded instruments and effects without editing configuration files.
- [x] Missing or incompatible plugins produce actionable diagnostics and do not silently corrupt projects.
- [x] Plugin state restoration is tested for supported plugin types.
- [x] The engine remains safe if plugin initialization or processing fails, within the documented failure model.
Implemented for the supported LADSPA 1.1 mono effects/audio sources: explicit
module descriptor browser, copied identity and control metadata, generic parameter
editor with validated Apply/Cancel and defaults reset, compatible-layout
replacement preserving node ID/wires, and atomic effect insertion on a selected
wire. Graph connections define order and existing deletion removes incident
wires. Edits integrate with undo/redo and compile before adoption. State uses
existing v9 parameter/automation records; missing/incompatible plugins retain the
current document and report recovery guidance. Native processor ABI 2 remains
unchanged. See PLUGIN_HOSTING.md and RECOVERY.md.
Validation: warning-enabled core/GUI builds; full unit/integration suite;
fixture and installed amp/inverter/sine plugin tests; actual chooser/editor GUI
tests; reset/cancel, insertion, replacement, removal and undo; layout/init/missing
module rollback; exact persisted rendering and noncommutative processing order;
callback allocation/module-lifetime guards, reliability and static analysis;
software JACK GUI/audio/MIDI and workflow; dependency-free build; installation
and package relocation; ASan/UBSan including generic-dialog lifetimes (existing
fontconfig leak suppression for GUI/system font allocations).
Qualification remains the documented in-process failure model: LADSPA cannot
signal run failure or contain crashes/hangs. No external editor, opaque state,
MIDI-capable plugin instrument, recursive scanner or new format was added.
Physical listening and arbitrary third-party plugin/endurance qualification
remain pending.
## Phase 26 — Automation and Control Mapping