To process the changes you have made in the Video Editor, the following cronjobs must be installed on the server.
To do this, call as root:
# crontab -e
and insert the following lines:
*/1 * * * * php -f /path/to/vimp/symfony -- videoeditor:transcode >> /path/to/vimp/log/videoeditor-transcode.log 2>&1
1 * * * * php -f /path/to/vimp/symfony -- videoeditor:assets >> /path/to/vimp/log/videoeditor-assets.log 2>&1
Where /path/to/vimp should be replaced with the appropriate path to the VIMP directory on your server.