免费开源的媒体播放器SMPlayer 最新版本是16.4，内置的解码器，在Linux和Windows下几乎可以播放所有的视频和音频格式。它不需要任何额外的编解码器。只要安装的SMPlayer，你就可以播放所有格式不用麻烦你再安装编解码器安装包。
SMPlayer 16.4 更新日志:
The Windows installer now includes mpv as well.
Now it’s easier to switch between MPlayer and mpv. (Preferences -> General, select either MPlayer or mpv as multimedia engine). [More info]
The extrastereo filter works again when using mpv.
Possibility to use the VLC shortcuts. (Preferences -> Keyboard and mouse, click the load button, select vlc.keys).
Possibility to enable mouse gestures (when the mouse is dragged up or down in the video window the volume changes, if dragged left or right it changes the time position). You can enable this option in Preferences -> Keyboard and mouse -> Mouse -> Drag function: seek and volume.
A fix for saving bookmarks.
The option for streaming sites in Preferences -> Network is different now, and allows these values: disabled, auto, YouTube and mpv+youtube-dl.
An animated icon has been added in the status bar to indicate when the player is buffering.
A new layout is used to display the media information (Options -> View info and properties).
Ubuntu 15.10 Wily Werewolf, Ubuntu 15.04 Vivid Vervet, Ubuntu 14.04 Trusty Tahr, Linux Mint 17.3 Rosa, Linux Mint 17.2 Rafaela, Linux Mint 17.1 Rebecca, Linux Mint 17 Qiana, Pinguy OS 14.04, Elementary OS 0.3 Freya, Deepin 2014, Peppermint 6, Peppermint 5, LXLE 14.04 安装 SMPlayer 16.4
sudo apt-add-repository ppa:rvm/smplayer
sudo apt-get update
sudo apt-get install smplayer smplayer-skins smplayer-themes
更多SMPlayer相关教程见以下内容：
解决Ubuntu 14.04 下SMPlayer的字幕乱码问题
在CentOS 5.5下安装使用Mplayer
Ubuntu 8.04下安装Mplayer看精彩电影[图文]
Linux播放器——RedHat下MPlayer和SMPlayer的安装