Real-time data transmission of zed camera using gscam

edit

I am trying to use gscam. So I tried running the gscam examples. It was successful.

export GSCAM_CONFIG="v4l2src device=/dev/video0 ! videotestsrc ! video/x-raw-rgb, framerate=25/1, width=640, height=360 ! videoconvert"

rosrun gscam gscam

[ INFO] [1588592926.560630877]: using default calibration URL
[ INFO] [1588592926.560654005]: camera calibration URL: file:///home/arc/.ros/camera_info/camera.yaml
[ INFO] [1588592926.560683702]: Unable to open camera calibration file [/home/arc/.ros/camera_info/camera.yaml]
[ WARN] [1588592926.560695586]: Camera calibration file /home/arc/.ros/camera_info/camera.yaml not found.
[ INFO] [1588592926.560703821]: Loaded camera calibration from 
(gscam:19469): GStreamer-WARNING **: 0.10-style raw video caps are being created. Should be video/x-raw,format=(string).. now.
[ INFO] [1588592926.571268497]: Time offset: 1588573268.746
[ INFO] [1588592926.719011864]: Publishing stream...
[ INFO] [1588592926.719099043]: Started stream.

But i want to send zed real time video data to rtp using gscam. I tried converting the gstreamer code to gscam below but got an error. What should I do? Nice and smart guys, please help me! please!

gst-launch-1.0 -v v4l2src device=/dev/video0 ! video/x-raw, width=640, height=480 ! videoconvert ! x264enc ! rtph264pay ! udpsink host=127.0.0.1 port=5000

export GSCAM_CONFIG="v4l2src device=/dev/video0 ! video/x-raw, width=640, heigth=480 ! videoconvert ! x264enc ! rtph264pay ! udpsink host=127.0.0.1 port=5000"

rosrun gscam gscam

[ INFO] [1588594149.358786280]: Using gstreamer config from env: "v4l2src device=/dev/video0 ! video/x-raw, width=640, heigth=480 ! videoconvert ! x264enc ! rtph264pay ! udpsink host=127.0.0.1 port=5000"
[ INFO] [1588594149.360962939]: using default calibration URL
[ INFO] [1588594149.360990656]: camera calibration URL: file:///home/arc/.ros/camera_info/camera.yaml
[ INFO] [1588594149.361024030]: Unable to open camera calibration file [/home/arc/.ros/camera_info/camera.yaml]
[ WARN] [1588594149.361037377]: Camera calibration file /home/arc/.ros/camera_info/camera.yaml not found.
[ INFO] [1588594149.361047702]: Loaded camera calibration from 
**
ERROR:/home/arc/catkin_ws/src/gscam/src/gscam.cpp:167:bool gscam::GSCam::init_stream(): assertion failed: (outpad)
Aborted (core dumped)