OK, thanks Andrey -- I should have been able to figure out usage myself but usually I forget more than I remember.

Script has been checked into GIT and explanation has been added to the manual. Some day some one will come along and modify the source code to include this directly.

On Thu, Nov 3, 2022 at 4:09 PM Андрей Спицын via Cin <cin@lists.cinelerra-gg.org> wrote

My script was just a proof of concept, can cinelerra use external tools for proxy file creation or not. The answer is Yes.
> how does Cinelerra work with this proxy file and switch back and forth to the "real" file
As I remember, the user must create a proxy file with external script, and the next step is to tell cinelerra to use proxy. It won't recreate proxy files because they already exist.