flutter_native_vision_camera 0.0.5

High-performance Flutter FFI camera plugin with zero-copy preview textures, integrated MLKit/Vision barcode scanning, and low-latency native frame access for real-time on-device vision.

Changelog

0.0.5

• Docs: added demo GIFs to the README (live preview + orientation, barcode/QR scanning with overlay, and the FFI frame processor's live brightness read). The GIFs live in the repo and are referenced by raw URL, so they're excluded from the published package.

0.0.4

Correctness, honesty, and packaging pass.

• Fixed: removed the deprecated package attribute from the Android manifest (broke builds under AGP 8.x; the namespace is set in build.gradle).
• Fixed: Android video recording no longer crashes — RECORD_AUDIO is now declared and audio is gated behind a runtime permission check, falling back to video-only when the mic is unavailable.
• Fixed: requestMicrophonePermission now actually awaits the permission dialog result.
• Fixed: frame processor no longer routes frames through a no-op relay isolate. The Dart callback is now delivered directly via NativeCallable.listener; documentation corrected to state it runs on the main isolate event loop (not a background isolate).
• Fixed: CameraPreview now rebuilds when the controller updates (e.g. after async init or device switch).
• Fixed: Android tap-to-focus now targets the correct metering point.
• Improved: Android frames now expose all YUV planes with correct row strides (previously only the Y plane).
• Improved: iOS reports the real frame pixel format and retains preview buffers safely.
• Packaging: real podspec metadata, version lockstep, honest README/feature matrix, topics/issue_tracker, CI (format/analyze/test/dry-run/pana + per-platform native builds), dropped the unused plugin_platform_interface dependency.
• iOS: implemented video recording (AVAssetWriter, keeps the frame stream live), setFocusDistance, barcode symbology filtering, teardown-on-reinit, CVPixelBuffer retain/lock balance, honest pixel format, main-thread results. Device-verified on iOS 18 (preview, photo, video, scanning).
• Orientation (structural): preview rotation is now read from the camera framework (Android SurfaceRequest.TransformationInfo, iOS sensor-relative) and applied once in CameraPreview — fixing the recurring 90° tilt. Added controller.previewRotation / displayPreviewSize; scanner overlay and camera page no longer compensate for rotation themselves. iOS Vision boxes now use the buffer orientation.
• Mirroring: a single mirror flag on initialize drives both the front-camera preview and the saved photo/video; the preview no longer double-mirrors on Android. CameraPreview gains ResizeMode.contain.
• Android: dynamic capture orientation, correct tap-to-focus metering, real photo orientation.
• API: exposed per-plane strides (Frame.planeBytesPerRow/planePixelStride) so chroma planes can be walked correctly; added CameraDevices.getCameraFormat(...) to pick a format by resolution/fps.
• Docs: comprehensive README (compile-correct quickstart with permissions, photo/video/scan/lifecycle snippets, a correct native C/C++ plugin guide, requirements, expanded platform matrix, Limitations & Roadmap); rewrote the example README; corrected the "background isolate" claim in the API docs to match reality (main isolate); documented takeSnapshot (iOS-only), setExposure units, and initialize's pixelFormat/mirror.
• Example: the Native Vision Camera page now reads the raw frame buffer over FFI and shows a live average brightness, demonstrating the headline feature; fixed the C++ sample's row-stride indexing.

0.0.3

• Migrated the Android embedding to AndroidX for better compatibility.

0.0.2

• Fixed pubspec metadata (homepage, repository).

0.0.1

• Initial release of flutter_native_vision_camera.
• FFI pipeline for frame access, zero-copy preview textures, basic camera controls (zoom, focus, flash), and real-time barcode scanning.