libopenmpt  0.5.0-pre.10+r12345
cross-platform C++ and C library to decode tracked music files

OpenMPT and libopenmpt

This repository contains OpenMPT, a free Windows/Wine-based tracker and libopenmpt, a library to render tracker music (MOD, XM, S3M, IT MPTM and dozens of other legacy formats) to a PCM audio stream. libopenmpt is directly based on OpenMPT, offering the same playback quality and format support, and development of the two happens in parallel.


The OpenMPT/libopenmpt project is distributed under the BSD-3-Clause License. See [LICENSE](LICENSE) for the full license text.

Files below the include/ (external projects) and contrib/ (related assets not directly considered integral part of the project) folders may be subject to other licenses. See the respective subfolders for license information. These folders are not distributed in all source packages, and in particular they are not distributed in the Autotools packages.

How to compile


  • Supported Visual Studio versions:
    • Visual Studio 2017 and 2019 Community/Professional/Enterprise

      To compile the project, open build/vsVERSIONwin7/OpenMPT.sln (VERSION being 2017 or 2019) and hit the compile button. Other target systems can be found in the vs2017* and vs2019* sibling folders.

  • OpenMPT requires the compile host system to be 64bit x86-64.
  • The Windows 8.1 SDK is required to build OpenMPT with Visual Studio 2017 (this is included with Visual Studio, however may need to be selected explicitly during setup).
  • Microsoft Foundation Classes (MFC) are required to build OpenMPT.
  • The ASIO SDK is needed for compiling with ASIO support.

    If you don't want this, comment out #define MPT_WITH_ASIO in the file common/BuildSettings.h.

    The ASIO SDK can be downloaded automatically on Windows 7 or later by just running the build/download_externals.cmd script.

    If you do not want to or cannot use this script, you may follow these manual steps instead:

    • Visit to download the SDK.
    • Put the ASIO SDK in the include/ASIOSDK2 folder. The top level directory of the SDK is already named ASIOSDK2, so simply move that directory in the include folder.

    If you need further help with the ASIO SDK, get in touch with the main OpenMPT developers.

libopenmpt and openmpt123

For detailed requirements, see libopenmpt/dox/

  • Autotools

    Grab a libopenmpt-VERSION-autotools.tar.gz tarball.

    make check
    sudo make install

    Cross-compilation is generally supported (although only tested for targetting MinGW-w64).

    Note that some MinGW-w64 distributions come with the win32 threading model enabled by default instead of the posix threading model. The win32 threading model lacks proper support for C++11 <thread> and <mutex> as well as thread-safe magic statics. It is recommended to use the posix threading model for libopenmpt for this reason. On Debian, the appropriate configure command is ./configure --host=x86_64-w64-mingw32 CC=x86_64-w64-mingw32-gcc-posix CXX=x86_64-w64-mingw32-g++-posix for 64bit, or ./configure --host=i686-w64-mingw32 CC=i686-w64-mingw32-gcc-posix CXX=i686-w64-mingw32-g++-posix for 32bit. Other MinGW-w64 distributions may differ.

  • Visual Studio:
    • You will find solutions for Visual Studio 2017 and 2019 in the corresponding build/vsVERSIONwin7/ folder. Projects that target Windows versions before Windows 7 are available in build/vsVERSIONwinxp/. Projects that target Windows 10 1709 Desktop (10.0.16299.0, including ARM and ARM64) or later versions are available in build/vsVERSIONwin10/. Minimal projects that target Windows 10 UWP are available in build/vsVERSIONuwp/. Most projects are supported with any of the mentioned Visual Studio verions, with the following exceptions:
      • in_openmpt: Requires Visual Studio with MFC.
      • xmp-openmpt: Requires Visual Studio with MFC.
    • libopenmpt requires the compile host system to be 64bit x86-64 when building with Visual Studio.
    • You will need the Winamp 5 SDK and the XMPlay SDK if you want to compile the plugins for these 2 players. They can be downloaded automatically on Windows 7 or later by just running the build/download_externals.cmd script.

      If you do not want to or cannot use this script, you may follow these manual steps instead:

      • Winamp 5 SDK:

        To build libopenmpt as a winamp input plugin, copy the contents of WA5.55_SDK.exe to include/winamp/.

        Please visit to download the SDK. You can disable in_openmpt in the solution configuration.

      • XMPlay SDK:

        To build libopenmpt with XMPlay input plugin support, copy the contents of into include/xmplay/.

        Please visit to download the SDK. You can disable xmp-openmpt in the solution configuration.

  • Makefile

    The makefile supports different build environments and targets via the CONFIG= parameter directly to the make invocation. Use make CONFIG=$newconfig clean when switching between different configs because the makefile cleans only intermediates and target that are active for the current config and no configuration state is kept around across invocations.

    • mingw-w64:

      The required compiler version is at least GCC 5.

      make CONFIG=mingw64-win32    # for win32
      make CONFIG=mingw64-win64    # for win64
    • gcc or clang (on Unix-like systems, including Mac OS X with MacPorts, and Haiku (32-bit Hybrid and 64-bit)):

      The minimum required compiler versions are:

      • gcc 7
      • clang 5

      The Makefile requires pkg-config for native builds. For sound output in openmpt123, PortAudio or SDL is required. openmpt123 can optionally use libflac and libsndfile to render PCM files to disk.

      When using gcc, run:

      make CONFIG=gcc

      When using clang, it is recommended to do:

      make CONFIG=clang

      Otherwise, simply run


      which will try to guess the compiler based on your operating system.

    • emscripten (on Unix-like systems):

      libopenmpt has been tested and verified to work with emscripten 1.38.5 or later. Earlier versions are not supported.


      # generates WebAssembly with dynamic heap growth
      make CONFIG=emscripten EMSCRIPTEN_TARGET=wasm


      # generates asm.js with a fixed size 128MB heap
      make CONFIG=emscripten EMSCRIPTEN_TARGET=asmjs128m


      # generates asm.js with a fixed default size heap (as of Emscripten
      # 1.38.11, this amounts to 16MB)
      make CONFIG=emscripten EMSCRIPTEN_TARGET=asmjs


      # generates JavaScript with dynamic heap growth and with
      # compatibility for older VMs
      make CONFIG=emscripten EMSCRIPTEN_TARGET=js

      Running the test suite on the command line is also supported by using node.js. Version 8.9.1 or greater has been tested. Earlier versions might or might not work. Depending on how your distribution calls the node.js binary, you might have to edit build/make/

    • DJGPP / DOS

      Cross-compilation from Linux systems is supported with DJGPP GCC 7.2 or later via

      make CONFIG=djgpp

      openmpt123 can use liballegro 4.2 for sound output on DJGPP/DOS. liballegro can either be installed system-wide in the DJGPP environment or downloaded into the libopenmpt source tree.

      make CONFIG=djgpp USE_ALLEGRO42=1    # use installed liballegro


      ./build/    # download liballegro binaries
    • American Fuzzy Lop:

      To compile libopenmpt with fuzzing instrumentation for afl-fuzz, run:

      make CONFIG=afl

      For more detailed instructions, read contrib/fuzzing/

    • other compilers:

      To compile libopenmpt with other C++14 compliant compilers, run:

      make CONFIG=generic

    The Makefile supports some customizations. You might want to read the top which should get you some possible make settings, like e.g. make DYNLINK=0 or similar. Cross compiling or different compiler would best be implemented via new config-*.mk files.

    The Makefile also supports building doxygen documentation by using

    make doc

    Binaries and documentation can be installed systen-wide with

    make PREFIX=/yourprefix install
    make PREFIX=/yourprefix install-doc

    Some systems (i.e. Linux) require running

    sudo ldconfig

    in order for the system linker to be able to pick up newly installed libraries.

    PREFIX defaults to /usr/local. A DESTDIR= parameter is also supported.

  • Android NDK

    See build/android_ndk/README.AndroidNDK.txt.

Contributing to OpenMPT/libopenmpt

See contributing.