ZED svo playback fps error

[mikeszabi]

Preliminary Checks

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• This issue is not a question, feature request, or anything other than a bug report directly related to this project.

Description

With the python-api I'm trying to play a saved svo file (saved at 15fps). I'm using the grab() method and the playback fps is much higher than at recording.

init = sl.InitParameters()
init.set_from_svo_file(svo_file)

def zed_playback_loop(init):
zed1 = sl.Camera()
status = zed.open(init)
if status != sl.ERROR_CODE.SUCCESS:
print(repr(status))
exit()

exit_app=False
svo_image = sl.Mat()
while not exit_app:
  if zed1.grab() == sl.ERROR_CODE.SUCCESS:
      print(f"fps: {zed.get_current_fps()}")
      zed1.retrieve_image(svo_image, sl.VIEW.SIDE_BY_SIDE)
      # Get frame count
      svo_position = zed1.get_svo_position();
  else:
      exit_app=True

Steps to Reproduce

1.Save an svo file
2.Playback the svo with python -api
3.
...

Expected Result

Same fps at playback, as at recording

Actual Result

Playback at ~80 fps instead of 15

ZED Camera model

ZED Mini

Environment

OS: Ubuntu 20.04
Python: 3.9
ZED SDK 3.8.2
pyzed: 3.8 
ZED Mini

Anything else?

No response