AVIF Maker

A native GUI application to convert images and videos to AVIF format.

Features

• Drag and drop files or use the file picker
• Batch conversion - queue multiple files
• Animated AVIF - convert GIFs and videos to animated AVIF
• Alpha channel support - preserves transparency from GIF, PNG, and video sources
• Configurable quality - separate quality controls for color and alpha
• Speed/quality tradeoff - encoder speed setting from 0 (best) to 10 (fastest)
• Lossless mode - perfect quality output

Supported Input Formats

Format	Decoder	Alpha Support	Notes
GIF	gif crate	1-bit	Animated, frame delays
PNG/APNG	image crate	Full	Static images
JPEG	image crate	N/A	No alpha
WebP	image crate	Full	Static only
MP4/MOV/WebM	ffmpeg-sidecar	Codec-dependent	Requires ffmpeg in PATH

Build Requirements

macOS

# Install dependencies
brew install libavif ffmpeg

# Build and run
cargo build --release
./target/release/avif-maker

Linux (Ubuntu/Debian)

# Install dependencies
sudo apt install libavif-dev ffmpeg

# Build and run
cargo build --release
./target/release/avif-maker

Windows

Use vcpkg or pre-built binaries for libavif and FFmpeg.

# With vcpkg
vcpkg install libavif ffmpeg

# Set environment variables
$env:VCPKG_ROOT = "C:\path\to\vcpkg"

# Build
cargo build --release

Usage

1. Add files - Drag and drop files onto the window, or click to browse
2. Configure settings - Adjust quality, speed, and output options in the left panel
3. Convert - Click "Convert All" to process the queue
4. Access outputs - Click "Open" or "Show in Finder" on completed files

Settings

• Quality (0-100): Higher = better quality, larger file. Default: 75
• Alpha Quality (0-100): Separate quality for transparency. Default: 90
• Speed (0-10): 0 = slowest/best quality, 10 = fastest. Default: 6
• Lossless: Perfect quality at the cost of file size
• FPS Override: Override detected framerate for video inputs
• Output Directory: Save to same folder as source, or a custom folder

Test Files

Three test files are included:

• Highlander-IMustFlip.mp4 - Video (tests ffmpeg decoder)
• Highlander-IMustFlipSmaller-OG.gif - Animated GIF without transparency
• BTS-240-art.gif - Animated GIF with transparency (1-bit alpha)

Architecture

avif-maker/
├── src/
│   ├── main.rs                 # Application entry point
│   ├── app.rs                  # Main application state
│   ├── decoder/
│   │   ├── mod.rs              # Decoder trait and dispatch
│   │   ├── gif.rs              # GIF decoder (pure Rust)
│   │   ├── image.rs            # PNG/JPEG/WebP decoder
│   │   └── video.rs            # FFmpeg-based video decoder
│   ├── encoder/
│   │   ├── mod.rs
│   │   └── avif.rs             # libavif encoder wrapper
│   └── ui/
│       ├── mod.rs
│       ├── drop_zone.rs        # Drag-and-drop area
│       ├── settings.rs         # Settings panel
│       └── queue.rs            # Job queue display
└── Cargo.toml

License

MIT