PreferencesMedia 0 0 621 523 Form UPDATE THUMBNAILS true Photographs or videos are sometimes edited after being uploaded and linked to Subsurface. If a photo is therefore more recent than its original thumbnail, checking the checkbox below will allow creating a new thumbnail after the media has been edited. Recalculate thumbnail if older than media file VIDEOS Video thumbnails 5 5 5 true One can view video files through thumbnail(s) in the Media tab, created using the external program FFmpeg which needs to be installed on your machine. Check the checkbox below to allow this. Then, in the text box below, specify the path to FFmpeg. In Linux, a typical path is: /usr/bin/ffmpeg. If FFmpeg is installed in the system area of your computer, just type ffmpeg in the text box below. For more info see Appendix F of the User Manual. Extract video thumbnails Path to ffmpeg: ... true One can specify te relative position within the video from where the thumbnail is retrieved. Use the slider below do do that. Extract at position 100 20 Qt::Horizontal Qt::Vertical 20 40