Custom visual mouse cursor

We need an app wich create a second visual indication of the mouse cursor (like a green circle). Then, when user clicks, it creates a red circle and keep the position for at least 1s. We will use it to record user interactions with ffmpeg (wich does not record the user cursor in remote desktop sessions) Requisites: • It needs to be fast! To be at the same position of system mouse cursor. • Need source code and instructions to compile here • I should not use the system cursor system, otherwise ffmpeg cant record.