FPS not set correctly while recording SVO

Hi, I am using the below script to record an SVO with my ZED X


########################################################################

Copyright (c) 2022, STEREOLABS.

All rights reserved.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

“AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

########################################################################
import sys
import pyzed.sl as sl
from signal import signal, SIGINT
import argparse
import os

cam = sl.Camera()

#Handler to deal with CTRL+C properly
def handler(signal_received, frame):
cam.disable_recording()
cam.close()
sys.exit(0)

signal(SIGINT, handler)

def main(opt):
init = sl.InitParameters()
init.depth_mode = sl.DEPTH_MODE.NONE # Set configuration parameters for the ZED
init.camera_fps = opt.fps # Set the framerate from argument
init.async_image_retrieval = False; # This parameter can be used to record SVO in camera FPS even if the grab loop is running at a lower FPS (due to compute for ex.)

status = cam.open(init) 
if status > sl.ERROR_CODE.SUCCESS: 
    print("Camera Open", status, "Exit program.")
    exit(1)
    
recording_param = sl.RecordingParameters(opt.output_svo_file, sl.SVO_COMPRESSION_MODE.H265) # Enable recording with the filename specified in argument
err = cam.enable_recording(recording_param)
if err != sl.ERROR_CODE.SUCCESS:
    print("Recording ZED : ", err)
    exit(1)

runtime = sl.RuntimeParameters()
print(f"SVO is Recording at {opt.fps} FPS, use Ctrl-C to stop.") # Start recording SVO, stop with Ctrl-C command
frames_recorded = 0

while True:
    if cam.grab(runtime) <= sl.ERROR_CODE.SUCCESS : # Check that a new image is successfully acquired
        frames_recorded += 1
        print("Frame count: " + str(frames_recorded), end="\r")

if name == “main”:
parser = argparse.ArgumentParser()
parser.add_argument(‘–output_svo_file’, type=str, help=‘Path to the SVO file that will be written’, required=True)
parser.add_argument(‘–fps’, type=int, help=‘Camera framerate (e.g. 15, 30, 60, 100)’, default=30)
opt = parser.parse_args()
if not opt.output_svo_file.endswith((“.svo”, “.svo2”)):
print("–output_svo_file parameter should be a .svo file but is not : ", opt.output_svo_file, “Exit program.”)
exit()
main(opt)

But it still records at 30 fps as seen in the log below.