Crate vst_audio_protocol 

Control framing and deterministic host supervision from ADR 0021.

Re-exports

pub use editor::EditorAction;

pub use editor::EditorImage;

pub use editor::EditorPlatform;

pub use editor::EditorReply;

pub use editor::EditorStatus;

pub use editor::ParentWindow;

pub use processing::BusConfiguration;

pub use processing::Capabilities;

pub use processing::ProcessingSetup;

Modules

editor

Framework-independent native editor operations. Unsupported native features return RequestError; no operation falls back to loading code in the parent.

layout

Speaker order is ascending VST 3 speaker bit, never channel-count guessing.

processing

Shared processing configuration. Native bus indices are never collapsed.

state

Versioned VST 3 state envelope. VST 2 chunks retain their native representation.

Structs

Bus

BusInfo

A bus as the plugin declares it, before any is activated.

ClassInfo

Frame

HostWatch

Parameter

PluginError

StateHistory

Two committed state blobs. A failed restore of the newest blob selects the previous blob without destroying either copy.

UnknownFrame

Enums

Action

What the caller does next. Kill, a crash’s EnterFallback and Disable all leave the engine on the fallback path until a later LeaveFallback. Disable also ends the process if it is still alive (the third failure can be a hang).

BusKind

What a declared audio bus is for.

CodecError

DecodedFrame

DisableReason

EditPhase

KillReason

Message

PluginFormat

Received

RequestKind

SampleFormat

WatchState

Constants

MAGIC

MAX_MESSAGE_BYTES

MAX_STATE_BYTES

MAX_STRING_BYTES

Longest UTF-8 string in a message. Windows long paths are why it is above MAX_PATH.

PROTOCOL_MAJOR

PROTOCOL_MINOR

Functions

decode_frame

duration_ms

encode_frame

read_frame

Reads one frame. Its 8-byte metadata is read first, and the declared length is rejected before allocating the body. Ok(None) is a clean EOF before a new frame; a partial frame is an error.

write_frame