VerseVDI-Data-Plane/openspec/changes/phase-3d-macos-native-mvp/specs/macos-media-presentation/spec.md

ADDED Requirements

Requirement: P3D-014 hardware video presentation

Video SHALL use negotiated registered media identifiers, VideoToolbox hardware decode, and Metal presentation without unnecessary copies or persistence.

Scenario: Unsupported hardware decode

• WHEN the negotiated profile cannot be decoded by supported VideoToolbox hardware
• THEN the session fails explicitly without software fallback, remote transcode, or pixel logging

Requirement: P3D-015 bounded audio playback

Audio SHALL use a proven CoreAudio abstraction with bounded buffering, negotiated channel layout, drift handling, and measurable A/V synchronization.

Scenario: Audio device replacement

• WHEN the default audio device changes or disappears during an active session
• THEN bounded playback state is recreated or fails visibly without persisting streamed audio