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Web Cam - RTSP stream

Caution

DO NOT use VLC to test streams, there are unfortunately problems with it. Please use ffplay from ffmpeg package.

You have some options such as TCP or UDP stream (whatever..). This should work with any other camera (usually there is a different port per stream)

You should be able to test the stream locally with ffplay command.

For example, if your camera is reachable over address 192.168.0.20 and port 8000 under endpoint /stream then below command should show the stream:

ffplay rtsp://192.168.0.20:8000/stream

If that works, then configuration should be pretty straightforward:

  • copy ffmpeg-mediamtx-rtsp-tcp.dist as .env
  • in copied file .env replace token-change-me with the value of the token you copied
  • in copied file .env replace fingerprint-change-me with some random value, which is alphanumeric and has at least 16 chars (and max of 40 chars), for example set it to fingerprint-myprinter4-camera-4
  • in copied file .env replace your RTSP device address raspberry-pi, port and stream id in CAMERA_COMMAND_EXTRA_PARAMS if needed
  • save edited file .env

You can try with UDP, but you may not get it ;-)

Next, test config.

Real world example

My another Rpi Zero W named hormex has two cameras:

  • CSI
  • endoscope on /dev/video

and I'm running mediamtx server to conver those to RTSP streams. More about mediamtx is here.

So I can have two configs:

.stream-csi over UDP:

PRINTER_ADDRESS=127.0.0.1
PRUSA_CONNECT_CAMERA_TOKEN=redacted
PRUSA_CONNECT_CAMERA_FINGERPRINT=62e8ab72-9766-4ad5-b8b1-174d389fc0d3
CAMERA_DEVICE=/dev/null
CAMERA_COMMAND=ffmpeg
CAMERA_COMMAND_EXTRA_PARAMS="-loglevel error -y -rtsp_transport udp -i "rtsp://hormex:8554/cam" -f image2 -vframes 1 -pix_fmt yuvj420p "

.stream-endo over TCP:

PRINTER_ADDRESS=127.0.0.1
PRUSA_CONNECT_CAMERA_TOKEN=redacted
PRUSA_CONNECT_CAMERA_FINGERPRINT=01a67af8-86a3-45c7-b6e2-39e9d086b367
CAMERA_DEVICE=/dev/null
CAMERA_COMMAND=ffmpeg
CAMERA_COMMAND_EXTRA_PARAMS="-loglevel error -y -rtsp_transport tcp -i "rtsp://hormex:8554/endoscope" -f image2 -vframes 1 -pix_fmt yuvj420p "
Last update: 2024-05-08 08:38:11 +0200 (UTC)