This commit enhances the encoder preset selector with detailed information
about speed vs quality trade-offs for each preset option.
Preset Information:
- Ultrafast: ~10x faster than slow, ~30% larger files
- Superfast: ~7x faster than slow, ~20% larger files
- Very Fast: ~5x faster than slow, ~15% larger files
- Faster: ~3x faster than slow, ~10% larger files
- Fast: ~2x faster than slow, ~5% larger files
- Medium: Balanced baseline (default)
- Slow: ~2x slower than medium, ~5-10% smaller (recommended)
- Slower: ~3x slower than medium, ~10-15% smaller
- Very Slow: ~5x slower than medium, ~15-20% smaller
UI Enhancements:
- Dynamic hint label below encoder preset dropdown
- Updates automatically when preset changes
- Visual icons for different speed categories:
- ⚡ Ultrafast/Superfast/Very Fast (prioritize speed)
- ⏩ Faster/Fast (good balance)
- ⚖️ Medium (baseline)
- 🎯 Slow/Slower (recommended for quality)
- 🐌 Very Slow (maximum compression)
Implementation:
- updateEncoderPresetHint() function provides preset details
- Called on preset selection change
- Initialized with current preset on view load
- Positioned directly under preset dropdown for visibility
Benefits:
- Helps users understand encoding time implications
- Shows file size impact of each preset
- Recommends "slow" as best quality/size ratio
- Prevents confusion about preset differences
- Enables informed decisions about encoding settings
Technical:
- All presets already supported by FFmpeg
- No changes to command generation needed
- Works with all video codecs (H.264, H.265, VP9, etc.)
- Preset names match FFmpeg standards
This commit implements the frame rate conversion feature with intelligent
file size estimation and user guidance.
Frame Rate Options:
- Added all standard frame rates: 23.976, 24, 25, 29.97, 30, 50, 59.94, 60
- Maintained "Source" option to preserve original frame rate
- Replaced limited [24, 30, 60] with full broadcast standard options
- Supports both film (24 fps) and broadcast (25/29.97/30 fps) standards
Size Estimation:
- Calculates approximate file size reduction when downconverting
- Shows "Converting X → Y fps: ~Z% smaller file" hint
- Example: 60→30 fps shows "~50% smaller file"
- Dynamically updates hint when frame rate or video changes
- Only shows hint when conversion would reduce frame rate
User Warnings:
- Detects upscaling (target > source fps)
- Warns with ⚠ icon: "Upscaling from X to Y fps (may cause judder)"
- Prevents confusion about interpolation limitations
- No hint shown when target equals source
Implementation:
- updateFrameRateHint() function recalculates on changes
- Parses frame rate strings to float64 for comparison
- Calculates reduction percentage: (1 - target/source) * 100
- Updates automatically when video loaded or frame rate changed
- Positioned directly under frame rate dropdown for visibility
Technical:
- Uses FFmpeg fps filter (already implemented)
- Works in both direct convert and queue execution
- Integrated with existing frame rate handling
- No changes to FFmpeg command generation needed
Benefits:
- 40-50% file size reduction for 60→30 fps conversions
- Clear visual feedback before encoding
- Prevents accidental upscaling
- Helps users make informed compression decisions
Add comprehensive Windows support roadmap:
- Cross-compilation and build system
- Platform-specific path handling
- Windows GPU detection (NVENC/QSV/AMF)
- Installer and distribution
- Testing checklist
Goal: Make VideoTools available for Jake and Windows users
Major refactoring to improve code organization and enhance UI:
Architecture:
- Split monolithic main.go into modular internal/ package structure
- Created internal/logging for centralized logging system
- Created internal/modules for module handler functions
- Created internal/ui for UI components and layouts
- Created internal/utils for shared utility functions
UI Enhancements:
- Implemented rainbow gradient across 8 module buttons (violet→red)
- Increased module button text size to 20 for better readability
- Fixed text centering on module tiles
- Converted Simple/Advanced mode toggle to tabs to save vertical space
- Added vertical scrollbars to prevent UI overflow
- Added metadata copy button (📋) to copy all metadata to clipboard
Video Processing:
- Fixed aspect ratio conversion to default to center-crop behavior
- Added 6 aspect handling modes: Auto, Crop, Letterbox, Pillarbox, Blur Fill, Stretch
- Fixed blur fill to maintain source resolution with padding (no scaling)
- Ensured all FFmpeg filters produce even-numbered dimensions for H.264
Known Issues:
- WMV files still produce FFmpeg error 234 during aspect conversions
(requires codec-specific handling in future update)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
