MPlayer

MPlayer is a free and open-source multimedia player that runs on many operating systems, including Linux, Windows, and macOS. It is designed to handle a wide range of audio and video formats, as well as DVDs, VCDs, and streaming protocols. MPlayer is primarily command-line based, but many graphical frontends are available. It relies on external decoding libraries, such as FFmpeg/libavcodec and libavformat, and on various video output drivers to render playback.

Features include support for subtitles from multiple formats and languages, multiple audio tracks, diverse video outputs, deinterlacing, post-processing, and chapters. It can play from files, devices, and streams using URLs; it includes MEncoder for encoding tasks.

MPlayer has been integrated into many Linux distributions and has influenced later projects. Its development has waned in favor of forks such as MPV, which preserves core MPlayer code while simplifying. MPV has become a popular successor and is widely packaged. MPlayer remains available in many repositories and is commonly used with GUI wrappers like GMPlayer and SMPlayer.

License and platform details: MPlayer is distributed under the GNU General Public License. The project emphasizes portability and flexibility, aiming to provide robust playback across diverse environments and hardware configurations.