16 lines
883 B
Markdown
16 lines
883 B
Markdown
## ADDED Requirements
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### Requirement: P3D-014 hardware video presentation
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Video SHALL use negotiated registered media identifiers, VideoToolbox hardware decode, and Metal presentation without unnecessary copies or persistence.
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#### Scenario: Unsupported hardware decode
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- **WHEN** the negotiated profile cannot be decoded by supported VideoToolbox hardware
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- **THEN** the session fails explicitly without software fallback, remote transcode, or pixel logging
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### Requirement: P3D-015 bounded audio playback
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Audio SHALL use a proven CoreAudio abstraction with bounded buffering, negotiated channel layout, drift handling, and measurable A/V synchronization.
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#### Scenario: Audio device replacement
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- **WHEN** the default audio device changes or disappears during an active session
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- **THEN** bounded playback state is recreated or fails visibly without persisting streamed audio
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