Implement GIF encoding with ffmpeg

[grovecj]

Description

Convert recorded video frames to an optimized GIF using bundled ffmpeg.

Tasks

• Bundle ffmpeg binary for Windows and macOS
• Use ffmpeg-static or similar npm package
• Generate color palette for optimal GIF quality
• Encode frames to GIF with configurable quality
• Show encoding progress indicator
• Optimize file size while maintaining quality
• Handle encoding errors gracefully
• Clean up temporary files after encoding

ffmpeg Pipeline

# Step 1: Generate palette
ffmpeg -i input.mp4 -vf "palettegen" palette.png

# Step 2: Create GIF with palette
ffmpeg -i input.mp4 -i palette.png -lavfi "paletteuse" output.gif

Configuration

{
  "encoding": {
    "quality": "high",
    "colors": 256,
    "dither": true
  }
}

Acceptance Criteria

• GIFs are high quality with reasonable file size
• Encoding completes within reasonable time
• Progress is shown to user