VLC

3.3.4 Beta 1

VLC for Android is a complex multimedia app that can play various files, as well as discs, devices and network streaming protocols. Read more about VLC  

The player can handle various video and audio files with ease and comes with an equalizer and filters for streaming music files.
 
It can be set to play videos in the background when turning the screen off or tapping the home button. VLC for Android has support for multi-track audio files, subtitles and you can adjust aspect-ratio or turn on auto-rotation.
 
The application has gestures for controlling volume, brightness, and options for selecting directories that would be included in the media library.
 
Moreover, the application includes all necessary codecs and comes with a widget for controlling audio options. It also has support for audio headset control and cover art. VLC for Android is available for free and doesn’t have any ads.