# MKV Tool GUI — Extract & Pack

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

1.  **Clone the repository or download the files.**

2.  **Install the required Python packages:**
    ```sh
    pip install -r requirements.txt
    ```

3.  **Run the application:**
    ```sh
    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.