ffmpeg capture current frame and overwrite the image output file

Question

I am trying to extract the image file from a RTSP stream url every second (could be every 1 min also) and overwrite this image file.

my below code works but it outputs t

Answer 1

Following command line should work for you.

ffmpeg -i rtsp://IP_ADDRESS/live.sdp -f image2 -updatefirst 1 img.jpg