HBCLI Wrapper

A simple Rust command-line tool to batch-convert video files using HandBrakeCLI on Windows.

This tool scans a directory for large .mkv files (>400MB), and automatically converts them to .mp4 format using a provided HandBrake preset or default settings.

---

Features

• Automatically scans directories recursively
• Skips files smaller than 400MB
• Converts .mkv files to .mp4
• Optional support for HandBrake GUI preset files
• Clean error handling and user-friendly output
• Windows-only (uses HandBrakeCLI.exe)

---

Installation

Prerequisites

• HandBrake installed
• HandBrakeCLI installed and available at:

C:\Program Files\HandBrake\HandBrakeCLI.exe

Usage

.\hbcli_wrapper.exe "<input_path>" "<output_path>" [preset_path]

<input_path> — directory containing .mkv files to convert

<output_path> — directory where .mp4 files will be saved

[preset_path] — (optional) HandBrake GUI preset file (.json)

Examples

Using a preset:

.\hbcli_wrapper.exe "C:\Users\Username\Saved Videos" "C:\Users\Username\Converted Videos" "C:\Users\Username\preset.json"

Without a preset:

.\hbcli_wrapper.exe "C:\Users\Username\Saved Videos" "C:\Users\Username\Converted Videos"

Notes

Make sure file paths with spaces are quoted.

HandBrakeCLI must be installed separately from the HandBrake GUI.

This program assumes HandBrakeCLI.exe is installed in C:\Program Files\HandBrake\.