Pin Tracker Offline

Offline-first Flutter app for bowling video analysis. The full pipeline runs on-device:

• record a roll directly inside the app or choose a saved video
• extract frames locally with ffmpeg_kit_flutter_new
• run object detection locally with the bundled assets/models/new_data_best.tflite
• render the ball path and pin-fall timeline without any backend or laptop connection

Runtime behavior

• no runtime API calls
• no Python backend
• no internet permission in the main Android app manifest
• no network entitlement in the macOS debug/profile sandbox

Main flow

1. Open the app on the device.
2. Tap Record Video to capture a new clip, or Choose From Gallery for an existing one.
3. Wait for frame extraction and local inference to finish.
4. Review the overlay, standing pins count, and pin-fall timeline.

Notes

• android/app/src/debug/AndroidManifest.xml and android/app/src/profile/AndroidManifest.xml still keep the Flutter development internet permission used by flutter run. That is for development tooling only, not the release runtime path.
• If flutter is not available in your terminal, add the Flutter SDK to PATH before running flutter pub get, flutter analyze, or flutter build.