A free app for Android, by ALLPlayer Group.

ALLPlayer Remote Control for Android is an app that allows you to remotely control your YouTube, ALLPlayer, VLC, WMP, KM Player, and PowerPoint presentations using your Android mobile device. This works for any type of media, even videos and music. It is compatible with most of the latest Android devices, including tablets and mobile phones. 

You can use it to play, pause, stop, rewind, or fast forward videos and audio files on your Android device. It is designed to be used with the ALLPlayer app, and you will need to install it on your computer, although you can also use it without the application. It’s just that it connects to ALLPlayer 5.8 or above through Wi-Fi and ALLPlayer 3.0 and above if the application needed is installed.