accessing same camera source for mediamtx and another camera source running

[sravich1]

Question

Hi,
I am running mediamtx which is configured for raspberrypi ID: 0 .
I have another python code which needs the same camera streamed output so that I can access for other tasks.
How can I access camera from mediamtx and provide the streamed output as an input to another task(even visa ve possible??)
Kindly through some light .
thanks
Ravi

[moenodedev]

The readme has instructions for Raspberry Pi Cameras that can help you 😄
https://github.com/bluenviron/mediamtx?tab=readme-ov-file#raspberry-pi-cameras

[aler9]

Hello, first you need to ingest the camera into MediaMTX:

paths:
  rpi:
    source: rpiCamera

Then you need to edit the Python script and pull the camera stream from MediaMTX instead of directly from the camera, for instance by using RTSP:

vcap = cv.VideoCapture("rtsp://localhost:8554/rpi")
while(1):
    ret, frame = vcap.read()
    cv.imshow('VIDEO', frame)
    cv.waitKey(1)

This is because the library in charge of interacting with the Raspberry Pi camera (libcamera) doesn't support multiple accesses at once.