LibMPV

  1. git clone the media-autobuild-suite https://github.com/m-ab-s/media-autobuild_suite

  2. Run the bat script media-autobuild_suite.bat

  3. Press 2 to say no to all of the packages, except for ffmpeg. When ffmpeg comes around choose option 4) shared

  4. Let it finish building. It will take a good while.

  5. Locate the file mpv-2.dll. It should be located in local64/bin-video

  6. Locate the file mpv.def. It should be in C:/a/media-autobuild_suite/build/mpv-git/libmpv or in C:/a/media-autobuild_suite/build/mpv-git/build.

  7. Locate the folder include/mpv with the header files for mpv. It should be in local64

  8. Create a new directory called libmpv. In libmpv, create another directory called lib. Copy the dll and the def there.

  9. In libmpv, create a new directory called include. Copy the header files there.

  10. Edit the mpv.def file. Add these two lines to the top of the file:

    LIBRARY MPV-2
EXPORTS

  11. Open a command line window in the lib folder.

  12. Run CALL "C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\Build\vcvarsall.bat" x64 in the command line. If your vcvarsall.bat script is located somewhere else, change the file path.

  13. Run lib /def:mpv.def /name:mpv-2.dll /out:mpv.lib /MACHINE:X64

  14. Now you have created mpv.lib! Use the lib file, the include folder and the dll file to link with OpenSpace.

  15. Libmpv is dependent on another dll called libopenh264. To use libmpv with OpenSpace, locate the file libopenh264.dll and put it in the bin folder.