Gstreamer pipes example

Control framerate

Control 60hz source and reduce stream to 10 hz Queue save only the newest frames

gst-launch-1.0 v4l2src device=/dev/video4 \
! video/x-raw,width=640,height=480,framerate=60/1 \
! videoconvert \
! queue max-size-buffers=1 leaky=downstream \
! videorate \
! video/x-raw,framerate=10/1 \
! fpsdisplaysink

Capture one image from camera

gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=1 \
! video/x-raw \
! jpegenc \
! filesink location=frame.jpg