gst-launch-1.0 is failing to read a video on Jetpack 4.3

Hi,
It looks like different elements are picked by decodebin. You may set

$ export GST_DEBUG=*FACTORY*:4

to see what elements are used in Jetpack4.2 and 4.3.

Since xvimagesink accepts video/x-raw, it is reasonable to have nvvidconv for doing video/x-raw(memory:NVMM) to video/x-raw conversion.