aiden/video-shader-toys
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Clean up video IO
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Aiden
2026-05-22 15:16:35 +10:00
parent 7bf5464fd2
commit 9787ca5f27
15 changed files with 377 additions and 255 deletions
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@@ -23,7 +23,7 @@ Native app internals are grouped by boundary:
- `render/`: render thread, readback, runtime render scene, and shared-context shader program preparation.
- `runtime/`: shader catalog support, layer model, Slang build bridge, font atlas build, and runtime-state persistence.
- `shader/`: shader package parsing and Slang compilation helpers.
- `video/core/`: backend-neutral video IO handoff contracts, formats, and output scheduling thread.
- `video/core/`: backend-neutral video IO handoff contracts, mode descriptions, pixel formats, and output scheduling thread.
- `video/decklink/`: current DeckLink input/output backend.
- `video/playout/`: backend-adjacent playout policy, queues, frame pools, and scheduling helpers.
- `video/legacy/`: older backend pipeline pieces kept separate while the new edge model settles.
@@ -164,7 +164,7 @@ Current native test coverage includes:
}
```
`inputVideoFormat`/`inputFrameRate` select the video capture mode. `outputVideoFormat`/`outputFrameRate` select the playout mode. With the current DeckLink backend, supported modes depend on the installed card and driver. The shader stack runs at input resolution and the final rendered frame is scaled once into the configured output mode. Common examples include `720p`/`50`, `720p`/`59.94`, `1080i`/`50`, `1080i`/`59.94`, `1080p`/`25`, `1080p`/`50`, `1080p`/`59.94`, and `2160p`/`59.94`.
`inputVideoFormat`/`inputFrameRate` select the video capture mode. `outputVideoFormat`/`outputFrameRate` select the playout mode through a backend-neutral mode description; the current DeckLink backend maps that mode to a `BMDDisplayMode` at the DeckLink boundary. Supported modes still depend on the installed card and driver. The shader stack runs at input resolution and the final rendered frame is scaled once into the configured output mode. Common examples include `720p`/`50`, `720p`/`59.94`, `1080i`/`50`, `1080i`/`59.94`, `1080p`/`25`, `1080p`/`50`, `1080p`/`59.94`, and `2160p`/`59.94`.
Legacy `videoFormat` and `frameRate` keys are still accepted and apply to both input and output unless the explicit input/output keys are present.