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phase information removal.

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Johannes Findeisen 2026-11-06 14:12:22 +01:00
commit dd32143bf8
45 changed files with 325 additions and 330 deletions
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docs/decisions/0009-parameter-processors-and-ladspa.md
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@ -1,6 +1,6 @@
# 0009 — Parameter processors and bounded LADSPA hosting
Status: accepted, Phases 14–15 (2026-10-27).
Status: accepted (2026-10-27).
Native ABI 1 remains compatible. ABI 2 adds explicitly parameter-only configuration,
metadata, validation and sample-offset parameter/MIDI ordering. It is a public C
@ -8,7 +8,7 @@ facility; opaque state and automatic native descriptor registration in project
files remain unsupported. Native instrument and gain examples exercise the
interface before adding a dynamically loaded module lifetime.
Select LADSPA 1.1 for the first external host. Reconsidering the Phase 9 candidates,
Select LADSPA 1.1 for the first external host. Reconsidering earlier candidates,
LV2 needs RDF/features/URIDs/workers, CLAP needs host scheduling/extension
negotiation, and VST3 needs a separate C++ SDK adapter and release-specific license
review. LADSPA adds a mature Linux C ABI, installed real plugins, straightforward
@ -28,8 +28,8 @@ and 16 input controls. Graph stereo consists of independent instances, not a
stereo LADSPA layout. Reject incompatible layouts and identities explicitly.
Control outputs are connected to private storage, not exposed as graph events.
LADSPA has no MIDI or opaque state API: save control values only. Parameter
changes rebuild plans on the control thread; sample automation is deferred to
Phase 16. Rate-scaled bounds are recalculated at compile. Instance history/tails
changes rebuild plans on the control thread; sample automation is provided through
parameter processors. Rate-scaled bounds are recalculated at compile. Instance history/tails
reset on recompile, not every transport seek (LADSPA has no realtime reset rule).
Latency compensation is unsupported: the supported set is zero-latency amp,
inverter and sine source, not arbitrary lookahead/delay/routing plugins.