Zero-copy screen capture

Autonomous Machines Jetson & Embedded Systems Jetson TX2
3

Hi,
Not sure how to do screen capture in QT. Would need other users to share experience.
By default you can run gstreamer command to capture the screen:

$ gst-launch-1.0 ximagesrc num-buffers=100 use-damage=0 ! video/x-raw ! nvvidconv ! 'video/x-raw(memory:NVMM),format=NV12' ! nvv4l2h264enc ! h264parse ! qtmux ! filesink location=a.mp4