import { CanvasSinkOptions, WrappedCanvas } from "mediabunny";
import { DecoderSource } from '../../driver/fns/schematic.js';
export declare class Filmstrip {
    #private;
    private videoTrack;
    private options;
    private constructor();
    static init(source: DecoderSource, options: FilmstripOptions): Promise<Filmstrip>;
    /**
    * Sets the frequency (granularity) of filmstrip thumbnails.
    * Changing this triggers a filmstrip refresh after any ongoing update finishes.
    * @param value - The new frequency in seconds.
    */
    set frequency(value: number);
    get frequency(): number;
    /**
    * Updates the visible time range for the filmstrip.
    *
    * Triggers a thumbnails update, with extended margins to preload
    * thumbnails slightly outside the visible range.
    * @param visibleRange - The current timeline viewport as a [start, end] tuple in seconds.
    */
    set range(visibleRange: TimeRange);
    /**
    * Returns the cached thumbnail (if any) for a given timestamp.
    * @param time - The timestamp to retrieve the canvas for.
    */
    getThumbnail(time: number): any;
}
type TimeRange = [number, number];
interface FilmstripOptions {
    frequency?: number;
    canvasSinkOptions?: CanvasSinkOptions;
    onChange: (tiles: {
        time: number;
        canvas: WrappedCanvas;
    }[]) => void;
}
export {};