Design Documents

Technical design documentation for osml-imagery-io internals.

• OversightML Imagery IO API Design: Tiled Image Pyramid Access
  • Overview
  • Core API Structure
  • Asset Provider Hierarchy
  • ImageAssetProvider Hierarchy
  • GraphicsAssetProvider
  • TextAssetProvider
  • Writer API: Why Encoding Hints Use Metadata
  • ImageOperation Pattern for Large Image Processing
  • Format-Specific Implementations
  • Parser Infrastructure (StructureRegistry / StructureDefinition)
• Synthetic Codestream Codec Pattern
  • The Problem
  • The Pattern: Synthetic Codestream Reconstruction
  • Precedent
  • Format-Specific Details
  • Why This Pattern
  • Relationship to the Tile Index Pipeline
  • Edge Tile Handling
  • Security Considerations
  • Summary
• Data-Driven Binary Parser
  • Relationship to Kaitai Struct
  • Architecture Overview
  • Key Components
  • Value Type
  • Error Types
  • Dependencies
  • Repeated Field Access
  • Example: NITF File Header
  • Comparison with Kaitai Struct
• Property-Based Testing Framework
  • Introduction
  • Conceptual Model
  • Property Categories
  • Quality Thresholds
  • Test Organization
  • Shared Helpers
  • Strategies
  • Running Property Tests
  • Extending for Future Formats
  • Hypothesis Configuration
  • Relationship to Unit Tests
  • References
• Native Library FFI Design
  • Overview
  • Why Custom FFI Bindings
  • Pinned Library Versions
  • The libjpeg ABI Version Problem
  • FFI Surface Area by Library
  • Compile-Time Size Assertions
  • Verification Procedure
  • Process for Updating a C Library Version
  • Historical Bugs