maxViewportRatio property
The maxViewportRatio param specifies the upper limit of the view ratio This param is useful to avoid having a trimmer way too wide, which is not usuable and performances consuming
The default view port value equals to controller.videoDuration / controller.maxDuration
To disable the extended trimmer view, maxViewportRatio should be set to 3
Defaults to 2.5
Implementation
final double maxViewportRatio;