It should work like this:
- Startup wizard starts, user creates a new project, the main window is shown and the project settings have some default values (for example 4/3 DAR, 1:1 PAR, 640x480, 25 FPS).
- When a video file is imported and no other video files have been imported yet, the project settings are changed to match.
- (Optional) Display a dialog with a "Don't show this anymore" option: "We set the project settings to match the imported video settings. You can change this behaviour in Preferences > Startup Wizard. [Project Settings] [Got it]".
- (Optional) We could have a preference to disable this behaviour "Set the project settings to match the first imported video clip"
Advanced users can customize the project settings, but usually if all the clips have the same resolution, this should work great.
Imported from https://bugzilla.gnome.org/show_bug.cgi?id=725488