Not able to set framerate in gstreamer pipeline

I am trying to run gstreamer pipeline on Jetson AGX Xavier board which displays video and save jpeg images.

gst-launch-1.0 filesrc location=‘clip.mp4’ ! qtdemux ! h264parse config-interval=1 ! omxh264dec ! nvivafilter cuda-process=true ! ‘video/x-raw(memory:NVMM), format=NV12’ ! nvvidconv ! tee name=t1 ! queue ! videoscale ! video/x-raw,width=720,height=480 ! xvimagesink t1. ! videoconvert ! videoscale ! videorate ! video/x-raw,framerate=30/1,width=320,height=240 ! jpegenc ! multifilesink location=“test.jpg”

I want to save jpeg image by 1 FPS.
if I try to set framerate as 1/1 to jpegenc then this pipeline doesn’t work. Is there any way to set FPS 1 to jpegenc