Use any RTSP camera with Prusa Connect

README.md

I use a cheap Tapo C100 webcam to monitor my 3D prints. It supports RTSP.

Instructions

1. Go to the Cameras section at https://connect.prusa3d.com
2. Add a new camera.
3. Click the QR code link
4. Click "Start Camera"
5. Open your browser's inspector window and look for the "/snapshot" request.
6. Copy the "Fingerprint" and "Token" headers into the docker-compose below.

The end result!

docker-compose.yml

prusa-camera:
  image: linuxserver/ffmpeg
  restart: always
  entrypoint: /bin/bash
  command: /upload.sh
  environment:
    RTSP_URL: "rtsp://<username>:<password>@<camera.ip.address>/stream1"
    FINGERPRINT: "<fingerprint-from-prusa-connect>"
    TOKEN: "<token-from-prusa-connect-link>"
  volumes:
    - ./upload.sh:/upload.sh

upload.sh

#!/bin/bash

# Set default values for environment variables
: "${HTTP_URL:=https://webcam.connect.prusa3d.com/c/snapshot}"
: "${DELAY_SECONDS:=10}"
: "${LONG_DELAY_SECONDS:=60}"

while true; do
    # Grab a frame from the RTSP stream using FFmpeg (timeout at 5s)
    ffmpeg \
        -timeout 5000000 \
        -loglevel quiet \
        -stats \
        -y \
        -rtsp_transport tcp \
        -i "$RTSP_URL" \
        -f image2 \
        -vframes 1 \
        -pix_fmt yuvj420p \
        output.jpg

    # If no error, upload it.
    if [ $? -eq 0 ]; then
        # POST the image to the HTTP URL using curl
        curl -X PUT "$HTTP_URL" \
            -H "accept: */*" \
            -H "content-type: image/jpg" \
            -H "fingerprint: $FINGERPRINT" \
            -H "token: $TOKEN" \
            --data-binary "@output.jpg" \
            --no-progress-meter \
            --compressed

        # Reset delay to the normal value
        DELAY=$DELAY_SECONDS
    else
        echo "FFmpeg returned an error. Retrying after ${LONG_DELAY_SECONDS}s..."
        
        # Set delay to the longer value
        DELAY=$LONG_DELAY_SECONDS
    fi

    sleep "$DELAY"
done

[ChiefPoints] above has done all the work and a guide.

Is there perhaps a video somewhere on how I can install the Tapo C100 in Prusa Cennect? I have tried the above, but I can't figure it out myself. The camera itself works and I can access it via RTSP. I'm a total novice and I have no idea how to install this.

Did you ever find out how to do this? I have no idea what to do with the docker stuff once I’ve added the info to it (total novice)

jtee3d set up a docker for it, and it does work: https://gist.github.com/nunofgs/84861ee453254823be6b069ebbce9ad2?permalink_comment_id=4793596#gistcomment-4793596

Could you add the x2 delays as variables also to play with this?

I have added the following optional environment variables: FRAME_CAPTURE_DELAY, CAMERA_CYCLE_DELAY and CONNECTION_TIMEOUT_DELAY

My wish would be support for MJPEG in addition to RTSP.

I have added MJPEG stream support.

Where can I put the delay lines? in the docker compose.yml or do I need to make another file? I have everything working but want the snapshots faster than the standard 10 sec?

Ich bekomme ständig die Fehlermeldung "Invalid Fingerprint" ist das Problem bekannt, was mache ich falsch?

Modified the script to work with camera streams from ESPHome:

#!/bin/sh

# Set default values for environment variables
: "${HTTP_URL:=https://webcam.connect.prusa3d.com/c/snapshot}"
: "${DELAY_SECONDS:=10}"
: "${LONG_DELAY_SECONDS:=60}"

while true; do
    # Use curl instead of wget to avoid method issues
    curl -s -o output.jpg "$SNAPSHOT_URL"

    # Check if the download was successful
    if [ $? -eq 0 ] && [ -s output.jpg ]; then
        # Upload image to Prusa Connect
        curl -X PUT "$HTTP_URL" \
            -H "accept: */*" \
            -H "content-type: image/jpg" \
            -H "fingerprint: $FINGERPRINT" \
            -H "token: $TOKEN" \
            --data-binary "@output.jpg" \
            --no-progress-meter \
            --compressed

        # Reset delay to the normal value
        DELAY=$DELAY_SECONDS
    else
        echo "Failed to download snapshot. Retrying after ${LONG_DELAY_SECONDS}s..."
        DELAY=$LONG_DELAY_SECONDS
    fi

    sleep "$DELAY"
done

If it is useful to folks, I have a version of this as a GitHub repo here: https://github.com/spkane/rtsp2prusa .