MPlayer version 1.3.0 has been ported (2016/01/24) to OS/2-eCS.
It has support for Win32 codecs, UniAud, DIVE, SNAP video overlays, and WarpOverlay. There is a browser plugin included, as well as MEncoder, a simple movie encoder. Most MPEG/VOB, AVI, Ogg/OGM, VIVO, ASF/WMA/WMV, QT/MOV/MP4, RealMedia, Matroska, NUT, NuppelVideo, FLI, YUV4MPEG, WebM, and more are supported.

- Official Site: http://mplayerhq.hu/design7/news.html
- OS/2 port issues: https://github.com/komh/mplayer-os2/issues
If you would like to support KO Myung-Hun you can make a donation at his website.
Port by: Ko Myung-Hun.
Source: eCSoft/2