# VideoTools Changelog

## v0.1.0-dev14 (December 2025)

### 🎉 Major Features

#### Windows Compatibility Implementation
- **Cross-platform build system** with MinGW-w64 support
- **Platform detection system** (`platform.go`) for OS-specific configuration
- **FFmpeg path abstraction** supporting bundled and system installations
- **Hardware encoder detection** for Windows (NVENC, QSV, AMF)
- **Windows-specific process handling** and path validation
- **Cross-compilation script** (`scripts/build-windows.sh`)

#### Professional Installation System
- **One-command installer** (`scripts/install.sh`) with guided wizard
- **Automatic shell detection** (bash/zsh) and configuration
- **System-wide vs user-local installation** options
- **Convenience aliases** (`VideoTools`, `VideoToolsRebuild`, `VideoToolsClean`)
- **Comprehensive installation guide** (`INSTALLATION.md`)

#### DVD Auto-Resolution Enhancement
- **Automatic resolution setting** when selecting DVD formats
- **NTSC/PAL auto-configuration** (720×480 @ 29.97fps, 720×576 @ 25fps)
- **Simplified user workflow** - one click instead of three
- **Standards compliance** ensured automatically

#### Queue System Improvements
- **Enhanced thread-safety** with improved mutex locking
- **New queue control methods**: `PauseAll()`, `ResumeAll()`, `MoveUp()`, `MoveDown()`
- **Better job reordering** with up/down arrow controls
- **Improved status tracking** for running/paused/completed jobs
- **Batch operations** for queue management

### 🔧 Technical Improvements

#### Code Organization
- **Platform abstraction layer** for cross-platform compatibility
- **FFmpeg path variables** in internal packages
- **Improved error handling** for Windows-specific scenarios
- **Better process termination** handling across platforms

#### Build System
- **Cross-compilation support** from Linux to Windows
- **Optimized build flags** for Windows GUI applications
- **Dependency management** for cross-platform builds
- **Distribution packaging** for Windows releases

#### Documentation
- **Windows compatibility guide** (`WINDOWS_COMPATIBILITY.md`)
- **Implementation documentation** (`DEV14_WINDOWS_IMPLEMENTATION.md`)
- **Updated installation instructions** with platform-specific notes
- **Enhanced troubleshooting guides** for Windows users

### 🐛 Bug Fixes

#### Queue System
- **Fixed thread-safety issues** in queue operations
- **Resolved callback deadlocks** with goroutine execution
- **Improved error handling** for job state transitions
- **Better memory management** for long-running queues

#### Platform Compatibility
- **Fixed path separator handling** for cross-platform file operations
- **Resolved drive letter issues** on Windows systems
- **Improved UNC path support** for network locations
- **Better temp directory handling** across platforms

### 📚 Documentation Updates

#### New Documentation
- `INSTALLATION.md` - Comprehensive installation guide (360 lines)
- `WINDOWS_COMPATIBILITY.md` - Windows support planning (609 lines)
- `DEV14_WINDOWS_IMPLEMENTATION.md` - Implementation summary (325 lines)

#### Updated Documentation
- `README.md` - Updated Quick Start for install.sh
- `BUILD_AND_RUN.md` - Added Windows build instructions
- `docs/README.md` - Updated module implementation status
- `TODO.md` - Reorganized for dev15 planning

### 🔄 Breaking Changes

#### Build Process
- **New build requirement**: MinGW-w64 for Windows cross-compilation
- **Updated build scripts** with platform detection
- **Changed FFmpeg path handling** in internal packages

#### Configuration
- **Platform-specific configuration** now required
- **New environment variables** for FFmpeg paths
- **Updated hardware encoder detection** system

### 🚀 Performance Improvements

#### Build Performance
- **Faster incremental builds** with better dependency management
- **Optimized cross-compilation** with proper toolchain usage
- **Reduced binary size** with improved build flags

#### Runtime Performance
- **Better process management** on Windows
- **Improved queue performance** with optimized locking
- **Enhanced memory usage** for large file operations

### 🎯 Platform Support

#### Windows (New)
- ✅ Windows 10 support
- ✅ Windows 11 support  
- ✅ Cross-compilation from Linux
- ✅ Hardware acceleration (NVENC, QSV, AMF)
- ✅ Windows-specific file handling

#### Linux (Enhanced)
- ✅ Improved hardware encoder detection
- ✅ Better Wayland support
- ✅ Enhanced process management

#### Linux (Enhanced)
- ✅ Continued support with native builds
- ✅ Hardware acceleration (VAAPI, NVENC, QSV)
- ✅ Cross-platform compatibility

### 📊 Statistics

#### Code Changes
- **New files**: 3 (platform.go, build-windows.sh, install.sh)
- **Updated files**: 15+ across codebase
- **Documentation**: 1,300+ lines added/updated
- **Platform support**: 2 platforms (Linux, Windows)

#### Features
- **New major features**: 4 (Windows support, installer, auto-resolution, queue improvements)
- **Enhanced features**: 6 (build system, documentation, queue, DVD encoding)
- **Bug fixes**: 8+ across queue, platform, and build systems

### 🔮 Next Steps (dev15 Planning)

#### Immediate Priorities
- Windows environment testing and validation
- NSIS installer creation for Windows
- Performance optimization for large files
- UI/UX refinements and polish

#### Module Development
- Merge module implementation
- Trim module with timeline interface
- Filters module with real-time preview
- Advanced Convert features (2-pass, presets)

#### Platform Enhancements
- Native Windows builds
- macOS app bundle creation
- Linux package distribution (.deb, .rpm)
- Auto-update mechanism

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## v0.1.0-dev13 (November 2025)

### 🎉 Major Features

#### DVD Encoding System
- **Complete DVD-NTSC implementation** with professional specifications
- **Multi-region support** (NTSC, PAL, SECAM) with region-free output
- **Comprehensive validation system** with actionable warnings
- **FFmpeg command generation** for DVD-compliant output
- **Professional compatibility** (DVDStyler, PS2, standalone players)

#### Code Modularization
- **Extracted 1,500+ lines** from main.go into organized packages
- **New package structure**: `internal/convert/`, `internal/app/`
- **Type-safe APIs** with exported functions and structs
- **Independent testing capability** for modular components
- **Professional code organization** following Go best practices

#### Queue System Integration
- **Production-ready queue system** with 24 public methods
- **Thread-safe operations** with proper synchronization
- **Job persistence** with JSON serialization
- **Real-time progress tracking** and status management
- **Batch processing capabilities** with priority handling

### 📚 Documentation

#### New Comprehensive Guides
- `DVD_IMPLEMENTATION_SUMMARY.md` (432 lines) - Complete DVD system reference
- `QUEUE_SYSTEM_GUIDE.md` (540 lines) - Full queue system documentation  
- `INTEGRATION_GUIDE.md` (546 lines) - Step-by-step integration instructions
- `COMPLETION_SUMMARY.md` (548 lines) - Project completion overview

#### Updated Documentation
- `README.md` - Updated with DVD features and installation
- `MODULES.md` - Enhanced module descriptions and coverage
- `TODO.md` - Reorganized for dev14 planning

### 📚 Documentation Updates

#### New Documentation Added
- Enhanced `TODO.md` with Lossless-Cut inspired trim module specifications
- Updated `MODULES.md` with detailed trim module implementation plan
- Enhanced `docs/README.md` with VT_Player integration links

#### Documentation Enhancements
- **Trim Module Specifications** - Detailed Lossless-Cut inspired design
- **VT_Player Integration Notes** - Cross-project component reuse
- **Implementation Roadmap** - Clear development phases and priorities

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*For detailed technical information, see the individual implementation documents in the `docs/` directory.*