Media Cutter

简体中文 | English

A high-performance, native desktop application for lossless video and audio clipping. Unlike web-based solutions, this app uses a native media engine for seamless playback of all formats (HEVC/AV1/4K) and leverages FFmpeg for lightning-fast, no-reencoding exports.

To be honest, it is a product of vibe coding

Key Features

• Native Performance: Powered by libmpv with full hardware acceleration via OpenGL rendering.
• Lossless Export: High-speed clipping without quality loss using FFmpeg's stream copy.
• Flexible Workflow: Supports reordering segments and exporting them individually or merged.
• Modern UI: Clean dark-themed interface built with Qt Widgets.
• Multilingual Support: Built-in English and Simplified Chinese (switchable at runtime).

Technical Stack

• Framework: Qt 6 (Widgets + OpenGL)
• Media Engine: libmpv (render API)
• Backend Processor: FFmpeg CLI
• Build System: CMake
• Package Manager: vcpkg (Windows)

Usage

1. File → Open File to load a video.
2. Use the playback controls to navigate. Press Mark In at the start of a clip and Mark Out at the end — the segment is added to the export queue.
3. Reorder or delete segments in the queue as needed.
4. Export Merged to combine all segments into one file, or Export Separately to save each segment individually. Export uses FFmpeg stream copy — no re-encoding, no quality loss.

Keyboard Shortcuts

• Space: Play / Pause
• Left / Right Arrow: Seek backward / forward 1 second
• Shift + Left / Right Arrow: Seek backward / forward 5 seconds
• I: Mark In (Set segment start)
• O: Mark Out (Set segment end and add to queue)
• Delete: Delete selected segment from the queue
• Ctrl + E: Export Merged
• Ctrl + Shift + E: Export Separately

Prerequisites

Windows

1. Visual Studio 2022 with the "Desktop development with C++" workload.
2. vcpkg: Microsoft's C++ package manager.
3. CMake (bundled with VS 2022 or standalone ≥ 3.16).
4. FFmpeg: Must be available in your system PATH.
5. libmpv: The CMake script will automatically download the Windows dev package on first configure.

Linux

1. CMake ≥ 3.16
2. Qt 6 development packages (Widgets, OpenGLWidgets, LinguistTools)
3. libmpv development package
4. FFmpeg (in PATH)
5. pkg-config

Package install commands (click to expand)

Debian / Ubuntu:

sudo apt install cmake qt6-base-dev libmpv-dev ffmpeg pkg-config

Fedora:

sudo dnf install cmake qt6-qtbase-devel mpv-libs-devel ffmpeg pkgconfig

Arch:

sudo pacman -S cmake qt6-base mpv ffmpeg pkgconf

Gentoo:

sudo emerge dev-build/cmake dev-qt/qtbase media-video/mpv media-video/ffmpeg dev-util/pkgconf

Build Instructions

Windows

1. Clone the repository:

   git clone https://github.com/YOUR_USERNAME/MediaCutter.git
   cd MediaCutter

2. Install Qt6 via vcpkg:

   vcpkg install qtbase:x64-windows

3. Configure and build:

   • Open the folder in Visual Studio 2022.
   • Set the CMake toolchain file to your vcpkg.cmake path.
   • Click Build → Rebuild All.

   Or from the command line:

   cmake -S . -B build -DCMAKE_TOOLCHAIN_FILE=C:/vcpkg/scripts/buildsystems/vcpkg.cmake
   cmake --build build --config Release

Linux

1. Clone the repository:

   git clone https://github.com/YOUR_USERNAME/MediaCutter.git
   cd MediaCutter

2. Install dependencies (see Prerequisites above for your distro).

3. Configure and build:

   cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
   cmake --build build -j$(nproc)

4. Run:

   ./build/MediaCutter

Translating

Translation files live in translations/. To add or update a language:

1. Edit or create translations/media-cutter_<locale>.ts.
2. Rebuild — CMake will compile .ts into .qm and embed it in the binary automatically.
3. Switch language at runtime via Language menu.

License

MIT License - See LICENSE for details.