public Integer getThumbnailWidth() {
        return this.thumbnailWidth;
    }
Width of each thumbnail within each tile image, in pixels. Default is 312. Must be divisible by 8.

@return Width of each thumbnail within each tile image, in pixels. Default is 312. Must be divisible by 8.
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/DashIsoImageBasedTrickPlaySettings.java