flutter_native_vision_camera 0.0.4

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

0.0.4

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.