https://cinelerra-gg.org/download/CinelerraGG_Manual.pdf
http://g-raffa.eu/Cinelerra/HOWTO/basics.html
.
+2022 August changes of note:
+ FFmpeg has been upgraded to 5.1 from 4.4.
2022 July changes of note:
Libaom upgraded from 3.2.0 to 3.4.0.
Libvpx upgraded from 1.11.0 to 1.12.0