A free program for Android, by Black Boss.

HD Video Player – All Format is a video player app that lets you play videos from a wide range of formats, including MP4, AVI, MKV, WMV, FLV, and more.

You can play your videos in HD, and you can also customize the playback experience with various settings, such as playback speed, brightness, and volume. The app has a sleek and customizable user interface, and you can change the color scheme, layout, and more to suit your preferences. You can also set the subtitles to automatically appear when you’re watching a video.

The app supports multiple subtitle formats, including SRT, ASS, and SSA.

You can use gestures to control the volume, brightness, and playback speed.