iidx: camera hook improvements (#841)

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## Link to GitHub Issue or related Pull Request, if one exists
#201

## Description of change

- Adds MJPEG camera support using Media Foundation decoding.
- Moves camera capture to asynchronous Source Reader callbacks.
- Supports native NV12 and YUY2 capture, preferring target-sized native
formats over MJPEG when possible.
- Improves capture and rendering performance through callback-paced
reads, bulk frame uploads, optimized row-based flips, and lazy
allocation of flip textures.
- Makes runtime media-type changes interrupt pending reads and safely
flush and reconfigure the Source Reader.
- Improves automatic mode selection based on aspect ratio, proximity to
1280x720, frame rate, and capture format.
- Hardens camera shutdown, flush handling, media-type changes, and
repeated capture failures.

## Testing
Tested with two cameras in tdj

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This commit is contained in:

bicarus

2026-07-27 08:42:46 -07:00

committed by GitHub

parent 74e619df37

commit 88a210e82e

6 changed files with 904 additions and 211 deletions

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src/spice2x/games/iidx/local_camera.cpp

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