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open-edge-platform/skills

physicalai-runtime-adding-a-camera-backend

Adds or modifies a camera backend under physicalai.capture.

First seen Aug 19, 2026

Installation

$ npx skills add open-edge-platform/skills --skill physicalai-runtime-adding-a-camera-backend
View on skills.sh ↗ GitHub repository ↗

Summary

  • Adds or modifies a camera backend under physicalai.capture.
  • Use when implementing a new Camera type, extending create_camera in src/physicalai/capture/factory.py, discovery helpers, optional pip extras for vendor SDKs, SharedCamera transport, or tests under tests/unit/capture with fake devices.

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More details

Agent compatibility

Declared targets from SKILL.md / docs. Unmarked agents are not listed — the skill may still install via the CLI.

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Repository health

Stars 2
License LICENSE
Default branch main
Open issues 0
Status Active

Skill metadata

Parsed from SKILL.md frontmatter.

LicenseApache-2.0

Package contents

Files included with this skill beyond the listing page.

  • skill md SKILL.md 2,617 B
  • docs SUMMARY.md 345 B

History

  1. First seen on skills.sh
  2. First recorded snapshot · 14 installs

SKILL.md

Adding a Camera Backend

Cameras implement the Camera interface in src/physicalai/capture/camera.py. Factory entry: create_camera() in src/physicalai/capture/factory.py maps lowercase type names (uvc, realsense, basler, …) to implementations. Reference layouts: src/physicalai/capture/cameras/uvc/, src/physicalai/capture/cameras/realsense/, src/physicalai/capture/cameras/basler/.

Workflow

  1. Pick a reference backend closest to the new hardware (UVC for USB video, RealSense for RGB-D, Basler for GenICam industrial).

- Done when: you can list which modules to mirror (camera.py, discover.py, init.py exports).

  1. Implement Camera: connect(), disconnect(), read() / read_latest(), context manager support, monotonic timestamps on Frame (src/physicalai/capture/frame.py).

- Done when: fake or mocked device tests can exercise connect/read without hardware.

  1. Wire discovery if the device is enumerable — add helpers under src/physicalai/capture/discovery.py or backend-specific _discover.py.
  2. Register the type in src/physicalai/capture/factory.py and export public class from src/physicalai/capture/init.py when user-facing.
  3. Optional extra in pyproject.toml for vendor SDKs; lazy-import inside the camera module so pip install physicalai stays light.

- Done when: import physicalai.capture works without the extra; importing the camera class fails with a clear message if the extra is missing.

  1. Tests in tests/unit/capture/ using existing fakes (tests/unit/capture/fake.py, conftest.py patterns).

- Done when: uv run pytest tests/unit/capture -k <backend> passes.

Shared transport

For multi-process access, create_camera(..., shared=True) wraps with SharedCamera (physicalai[capture] / transport extra, iceoryx2). Only document shared mode when the transport extra is installed.

Required checks

  • CameraType or factory string is documented in docs/reference/camera-api.md when user-visible.
  • Frame shapes and dtypes match README examples (RGB (H, W, 3)).
  • No blocking discovery at import time.

Verify

uv run pytest tests/unit/capture -q
prek run --all-files