Custom gstreamer plugin to draw OSD using L4T nvosd.h

[DaneLLL]

Hi,
There is a patch for your reference:
Unable to display text using nvosd_put_text() - #4 by WayneWWW
It does not work with YUV420/NV12. Please convert to RGBA.

And please share the warning print in calling nvosd_set_clock_params().