The current Datavyu player is stuttering during backward fake playback (rates < 0) even if the feature is not implemented but external implementations (like Datavyu Software) could fake a backward playback by relying on an external clock that will trigger backward seeks to fake a backward playback.
The seek mechanism currently implemented steps to the next frame at the end of a seek in order to refresh the displayed image. However, this behavior causes stuttering during consecutive backward seeks.

• Disabling stepping after seek and find a new mechanism to refresh the frame to be displayed
• Add Unit test to visually test the backward playback
• implement backward playback in demo projects