tested on Ubuntu 20.04 / jetpack 5.1
build ffmpeg 6.0 with
- filter : drawtext, avsynctest
- codec : hevc_nvmpi, h264_nvmpi
borrow from : https://github.com/Keylost/jetson-ffmpeg
curl -L https://raw.githubusercontent.com/fingul/jetson-ffmpeg/master/install.sh | bash