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@rayspec/audio-runtime

v1.8.0

Published

The product-neutral Tier B **Audio/Media session capability**. It owns audio session/track upload, idempotent resumable chunk ingest, finalize, media storage, playback-token minting, and range/streaming playback — with **zero product vocabulary**. It is t

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iloveautomationiloveautomation

Keywords

Readme

@rayspec/audio-runtime

The product-neutral Tier B Audio/Media session capability. It owns audio session/track upload, idempotent resumable chunk ingest, finalize, media storage, playback-token minting, and range/streaming playback — with zero product vocabulary. It is the runtime realization of the audio_input + media_playback capability contracts.

Surface

  • Neutral root (@rayspec/audio-runtime): the model (types), config/track policy (config), key derivation (keys), stores (stores), the capability core (upload, playback, media-artifact), the session_finalized event seam (events), the deterministic fake media adapter (fake-media-adapter), and the machine-readable manifest.
  • RaySpec binding (@rayspec/audio-runtime/rayspec): mountAudioCapability(...) returns the neutral stores[], the api[] routes, and the resolved handler map to wire behind RaySpec's real auth/tenancy chain (additive — touches no frozen-surface file). Handler factories bind the platform RouteHandlerInit/ StreamRouteHandlerInit straight into the core ports.

Behavior (declared 1.0 semantics)

  • Upload watermark: 200 advance / 200 idempotent no-op / 409 gap; sealed track late retry → 200.
  • Finalize: 409 chunk_count_mismatch, idempotent terminal; a dual-track finalize converges on exactly one session_finalized event (session-scoped ${tenantId}:${sessionId} idempotency key).
  • Playback token: 409 not_ready until a playable artifact exists; TTL max(900, ceil(duration)+60) clamped 24h.
  • Playback: 200 / range 206 / 304 / 416; resource-bound media token (403 on cross-resource replay) + tenant-bound DB ownership re-validation (404 on a cross-tenant token).
  • Tenant isolation + blob path safety on every route (tested against a real Postgres + fs blob store).

Event seam (Tier A hand-off)

Finalize does not run a product workflow — it emits session_finalized through an injected SessionFinalizedSink (the id normalizes to the audio_input.finalized_session Tier B contract). The Tier A workflow runtime subscribes and enforces session-scoped single-flight. InMemorySessionFinalizedSink is the deterministic test/dev sink.