A simple, intuitive graphical user interface for extracting streams from and packing streams into Matroska (MKV) files. This tool is designed to be a lightweight and user-friendly alternative to more complex applications, focusing on the most common extraction and packing tasks.

Key Features

This tool offers a streamlined and intuitive experience for common MKV tasks:

Focused Interface: The UI is split into two simple tabs: "Extract" and "Pack", with no complex menus or obscure options to navigate.
Simplified Workflow:
- Extraction: Open an MKV file, and all its streams are listed with sensible default output filenames. Uncheck the ones you don't want and click "Extract".
- Packing: Add your video, audio, subtitle, and font files, and click "Pack". The tool handles the rest.
Drag-and-Drop: Easily add files by dragging them onto the application window. The tool automatically detects the file type and adds it to the correct list.
Smart Defaults: The tool suggests logical filenames for extracted streams, saving you time and effort.

Requirements

Python 3
Required Command-Line Tools: The following tools must be installed and available in your system's PATH:
- ffmpeg
- ffprobe
- mkvextract

Setup and Running

Clone the repository or download the files.
Install the required Python packages:
```
pip install -r requirements.txt
```
Run the application:
```
python3 mkv_tool_gui.py
```

Features

Extract Tab

Open an MKV file to see all its video, audio, subtitle, and attachment (e.g., fonts) streams.
Each stream is listed with its type, codec, and language.
Editable output filenames are suggested automatically.
Select the streams you want to extract and choose an output folder.
Drag and drop an MKV file onto the window to open it.

Pack Tab

Add video, audio, subtitle, typeface, and chapter files.
Streams are packed into a new MKV container without re-encoding.
Drag and drop your source files onto the window to add them to the packing list.