Recording end doesn't line up with GUI animation

[aymanhab]

The recording and GUI animation start the same but endup at different times depending on the combination of speed/resolution/complexity.

[aymanhab]

This issue boils down to the following. When recording starts the recorder starts recording after some fixed delay (unrelated to receiving frames from the GUI) then records frames at fixed time intervals until the number of frames is met. This doesn't work because some frames take longer and they start arriving after a few frames are recorded already so recording is stopped before end of animation.
This need to be made asynchronous so it records frames after "startAnimation" message is received, and record actual frames sent by the GUI. Unfortunately most modifications to the recorder end up "Aborting" recording without explanation. Any idea @AlbertoCasasOrtiz ?