ref: 976c310f1d8d21d5f76415d124522dbda55f0b79 dir: /plugins/foo_mp4/compiling.txt/
How to compile foo_mp4.dll: Extract the 2 directories (\foobar2000, \pfc) from the foobar2000 SDK to this directory, open the foo_mp4 project for VC and compile.