Architecture

EditCore follows a layered architecture with platform-specific native code bridged through Flutter's platform channel system.

Architecture Diagram

┌────────────────────────────────────────────┐
│          HOST APPLICATION                  │
├────────────────────────────────────────────┤
│      PUBLIC API  (EditCore class)          │
├────────────────────────────────────────────┤
│         LICENSING LAYER                    │  ← validates ECK- key
├───────────────┬────────────────────────────┤
│   UI LAYER    │   CORE ENGINE LAYER        │
├───────────────┴────────────────────────────┤
│            EXPORT LAYER                    │
├────────────────────────────────────────────┤
│        PLATFORM CHANNEL BRIDGE             │
├──────────────────┬─────────────────────────┤
│   iOS (Swift)    │   Android (Kotlin)      │
│   AVFoundation   │   MediaCodec            │
│   CoreImage      │   ExoPlayer             │
└──────────────────┴─────────────────────────┘

Layers

Public API

The EditCore class is the single entry point. Exposes initialize(), openEditor(), getLicenseTier(), and isFeatureEnabled().

Licensing Layer

Validates the ECK- prefixed API key against the Creovine platform API. License state is cached locally using flutter_secure_storage to reduce network calls.

UI Layer

Full-screen editor interface built in Flutter with Provider state management. Includes timeline, filter panel, text overlay editor, crop overlay, and export progress indicator.

Core Engine Layer

Coordinates editing operations — applies filters, manages text overlays, computes crop regions, and prepares the export pipeline.

Export Layer

Hardware-accelerated video export with real-time progress streaming back to the UI layer.

Platform Channel Bridge

Bridges Dart code to native platform implementations:

Platform	Video Decode	Filters	Export
iOS	AVFoundation	CoreImage (CIFilter)	AVAssetExportSession
Android	ExoPlayer	MediaCodec shaders	MediaCodec encoder