Quick build of FFmpeg 3.0.1
Built from: http://ffmpeg.org/releases/ffmpeg-3.0.1.tar.bz2

configure --enable-gpl --disable-doc --cpu=i686 --enable-fontconfig --enable-libfreetype --enable-libvpx --enable-libx264 --enable-libmp3lame --enable-libxvid --prefix=r:/tmp/ffmpeg --disable-static --enable-shared --extra-libs="-lpoll -lmmap"
make
make install
Removed all the long name DLLs from lib as they don't work on OS/2
Needed libaries,
http://hobbes.nmsu.edu/download/pub/os2/dev/SDL-1.2.15-20160303.zip
http://hobbes.nmsu.edu/download/pub/os2/dev/mm/x264-0.148.x.zip
http://hobbes.nmsu.edu/download/pub/os2/dev/mm/libvpx-1.5.0.zip
http://hobbes.nmsu.edu/download/pub/os2/dev/mm/lame-3.99.5-r2.zip
http://hobbes.nmsu.edu/download/pub/os2/dev/mm/xvidcore-1.3.4.zip
With YUM/RPM, also available as zips
libc066, zlib, bzip2, freetype, fontconfig, libzma0, mmap
and their dependencies. If running the latest Mozilla the dependencies should be already installed.

Dave Yeo
dave.r.yeo@gmail.com

