Frame Player is a free multimedia program developed by DDLabs for Android 5.0. This advanced video player lets you watch recorded videos at several playback speeds while maintaining audio synchronization. You can also play frame-by-frame, zoom in on any part of the video, and save frames as images to your device storage.

To use Frame Player, simply select a video from your gallery or record a new one from the app. Then, press the "Start" button to open the player. You can enable a brief tutorial about the player controls and disable it when you want.

One of the notable features of Frame Player is that it automatically calculates the video's framerate for frame-by-frame playback. If you think the calculation is incorrect, you can set it manually.

However, it's worth noting that running Frame Player on low-end devices with Android Lollipop may cause slow and fast-motion playback issues. Overall, Frame Player is an excellent option for those who need an advanced video player on their Android device.