# Assistance Needed for Streaming ZED Camera Video to Web Browser Using GStreamer
**URL:** https://discourse.gstreamer.org/t/assistance-needed-for-streaming-zed-camera-video-to-web-browser-using-gstreamer/2378
**Category:** General Discussion
**Created:** [September 12, 2024, 2:51pm UTC](https://discourse.gstreamer.org/t/assistance-needed-for-streaming-zed-camera-video-to-web-browser-using-gstreamer/2378 "2024-09-12T14:51:42Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@aggg](https://discourse.gstreamer.org/u/aggg)
#### Post date: [September 12, 2024, 2:51pm UTC](https://discourse.gstreamer.org/t/assistance-needed-for-streaming-zed-camera-video-to-web-browser-using-gstreamer/2378/1 "2024-09-12T14:51:42Z")
Hello GStreamer forums,
I’m a new member and would appreciate your assistance with the following code:
import sys
import numpy as np
import pyzed.sl as sl
import cv2
import gi
gi.require\_version(‘Gst’, ‘1.0’)
gi.require\_version(‘GstRtspServer’, ‘1.0’)
from gi.repository import Gst, GstRtspServer, GObject
def main():
# Create a ZED camera object
zed = sl.Camera()
```
init = sl.InitParameters()
init.camera_resolution = sl.RESOLUTION.HD720
init.camera_fps = 30
init.set_from_serial_number(serial)
# Open the camera
err = zed.open(init)
if err != sl.ERROR_CODE.SUCCESS:
print(repr(err))
zed.close()
exit(1)
# Set runtime parameters
runtime = sl.RuntimeParameters()
# Image size
image_size = sl.Resolution(1280, 720)
image_size_out = sl.Resolution(1280, 720)
# Create sl.Mat matrices
image_zed = sl.Mat(image_size.width, image_size.height, sl.MAT_TYPE.U8_C4)
image_zed_out = sl.Mat(image_size_out.width, image_size_out.height, sl.MAT_TYPE.U8_C4)
# Configure GStreamer pipeline
out_send = cv2.VideoWriter(
'appsrc is-live=false ! videoconvert ! video/x-raw,format=YUY2,width=1280,height=720,framerate=30/1 ! '
'nvvidconv ! nvv4l2h264enc insert-sps-pps=1 bitrate=9000000 ! video/x-h264, '
'stream-format=byte-stream ! rtph264pay config-interval=1 ! '
'udpsink host=(ip) port=3000',
cv2.CAP_GSTREAMER, 0, 30, (1280, 720), True)
if not out_send.isOpened():
print('VideoWriter not opened')
exit(0)
rtsp_port_num = 3000
# Set up RTSP server
server = GstRtspServer.RTSPServer.new()
server.props.service = "%d" % rtsp_port_num
server.attach(None)
codec = "H264"
updsink_port_num = 3000
factory = GstRtspServer.RTSPMediaFactory.new()
factory.set_launch(
"(udpsrc name=pay0 port=%d buffer-size=524288 caps=\"application/x-rtp, media=video, clock-rate=90000, encoding-name=(string)%s, payload=96 \" )"
% (updsink_port_num, codec))
factory.set_shared(True)
server.get_mount_points().add_factory("/ds-test", factory)
# Output RTSP info
print("\n ***Launched RTSP Streaming at rtsp://localhost:%d/ds-test*** \n\n" % rtsp_port_num)
key = ' '
while True:
err = zed.grab(runtime)
if err == sl.ERROR_CODE.SUCCESS:
# Retrieve images
zed.retrieve_image(image_zed, sl.VIEW.LEFT, sl.MEM.CPU, image_size)
zed.retrieve_image(image_zed_out, sl.VIEW.LEFT)
# Convert sl.Mat to numpy array for OpenCV
image_ocv = image_zed.get_data()
image_ocv_out = image_zed_out.get_data()
# Convert RGBA to RGB
image_RGB = cv2.cvtColor(image_ocv_out, cv2.COLOR_RGBA2RGB)
# Stream using RTSP
out_send.write(image_RGB)
key = cv2.waitKey(1)
cv2.destroyAllWindows()
zed.close()
```
if **name** == “ **main** ”:
main()
> > > I am able to stream the video locally using VLC on another machine over the local network, and the stream works well with a small delay that is currently acceptable. However, my main concern is finding a way to stream the video to a web browser without relying on VLC. I have tried various methods without success, and I would greatly appreciate your guidance to achieve this.
**Additional Information:**
1. I need to use the ZED SDK to leverage its depth mapping and other features, so removing it from the code is not an option.
2. Due to bandwidth limitations, I must use high-efficiency encoding such as H.264.
Thank you in advance for your support!
---
### Author:  [@aggg](https://discourse.gstreamer.org/u/aggg)
#### Post date: [October 12, 2024, 4:02am UTC](https://discourse.gstreamer.org/t/assistance-needed-for-streaming-zed-camera-video-to-web-browser-using-gstreamer/2378/2 "2024-10-12T04:02:41Z")
Is there anyone can help ???
---
### Author:  [@Honey\_Patouceul](https://discourse.gstreamer.org/u/Honey_Patouceul)
#### Post date: [October 12, 2024, 4:49pm UTC](https://discourse.gstreamer.org/t/assistance-needed-for-streaming-zed-camera-video-to-web-browser-using-gstreamer/2378/3 "2024-10-12T16:49:03Z")
You may have a look to: [Stream frame opencv via rtsp using gstreamer c++ - #6 by Honey\_Patouceul](https://discourse.gstreamer.org/t/stream-frame-opencv-via-rtsp-using-gstreamer-c/1502/6) for an example of RTSP streaming from OpenCV application.
For color, VideoWriter would expect BGR only, so assuming you’re reading RGBA frames from sl, you would convert into BGR instead of RGB with:
```auto
image_BGR = cv2.cvtColor(image_ocv_out, cv2.COLOR_RGBA2BGR)
```
If you want to use NVENC, as writer pipeline you may try:
```auto
rtph264_writer = cv2.VideoWriter('appsrc ! video/x-raw,format=BGR ! queue ! videoconvert ! video/x-raw,format=BGRx ! nvvidconv ! nvv4l2h264enc insert-sps-pps=1 insert-vui=1 idrinterval=30 ! queue ! h264parse ! rtph264pay ! udpsink host=127.0.0.1 port=5004', cv2.CAP_GSTREAMER, 0, float(fps), (w,h))
```
---
### Author:  [@aggg](https://discourse.gstreamer.org/u/aggg)
#### Post date: [November 9, 2024, 1:55am UTC](https://discourse.gstreamer.org/t/assistance-needed-for-streaming-zed-camera-video-to-web-browser-using-gstreamer/2378/4 "2024-11-09T01:55:11Z")
Mr. Honey\_Patouceul , plaese can u check again my case ?
I have already succesfully stream over rtsp. but my concern is here
Recheck this part on topic please
> > > am able to stream the video locally using VLC on another machine over the local network, and the stream works well with a small delay that is currently acceptable. However, my main concern is finding a way to stream the video to a web browser without relying on VLC. I have tried various methods without success, and I would greatly appreciate your guidance to achieve this.
\*\*\*\*\* I want ur solution involves USING HW ENCODING.