Docker image to grab a still image from an RTSP feed and serve it up as a snapshot
Forked from dewgenenny/docker_rtsp_grab
This image comes in handy if your camera does not expose a URL for snapshots (or at least, the URL is unknown).
I have modified HEALTHCHECK to test against localhost instead of a static IP that doesn't exist so that it will pass.
You need to call this image with the URL environment variable set to the URL of the camera you want it to connect to, and FPS set to FPS you would want the snapshots to be updated. I have found 1/10 (once every 10 seconds) to work well.
Once you've got it running, you'll be able to see the snapshot at http://your-server-ip:port/snapshot.jpg
Examples:
Using the image from DockerHub:
docker run --rm --name rtsp_grab -e URL=http://url-of-your-camera:554/live/ch0 -e FPS=1/10 -p 8844:80 judahbella/rtsp_grab
Building the docker image yourself:
sudo docker build -t rtsp_grab .
Then, run your newly built docker image:
docker run --rm --name rtsp_grab -e URL=http://url-of-your-camera:554/live/ch0 -e FPS=1/10 -p 8844:80 rtsp_grab
I highly recommend double checking that your URL works using VLC or ffmpeg before moving to use image