is nvenc only available on the AGX platform (not on L4T)?

if this is true, is there a download link for nvenc for aarch64?

thanks.

Dear shi.yan,

Could you please download DRIVE Software Documentation (ZIP) on https://developer.nvidia.com/drive/documentation?
Then please unzip the file, run Start_DRIVE_Software_Docs.html file and please find NvMedia part for your topic.