Video Editing Software - Improve the existing

Hi, We have this software with source code. It is have JAVA code.. [login to view URL] We want to add a few features. There are minor problems that don't work. First of all, the software uses the FFMPEG Mobile library. what we want ** Change Bitrate setting before export process ** Video cut module have two pointer (left and right) it not working correctly. we have to fix this. ** We want to put floating pictures instead of the top picture on the home screen. ** The user can't change filename before export. We must add filename input dialog or simple window etc. ** We need a activity for export process .. It must be shown remaining time and google ads during the export process. Problems ** Software not working correctly on Android 9 - 10. Because android 9 and greater systems does not allow access to some folders directly. Codes that are not working need to be updated.