import type { ctor, Rect } from './types';
export interface TimeRange {
    start: number;
    end: number;
}
export interface VideoReader {
    isSought: boolean;
    isPlaying: boolean;
    prepare: (targetFrame: number, playbackRate: number) => Promise<void>;
    getError: () => Promise<any>;
    onDestroy: () => void;
    play: () => Promise<void>;
    pause: () => void;
    stop: () => void;
}
export interface VideoReaderManager {
    getVideoReaderByID: (id: number) => VideoReader | undefined;
    destroy: () => void;
}
export interface VideoDecoderConstructor {
    create: (mp4Data: Uint8Array, width: number, height: number, frameRate: number, staticTimeRanges: TimeRange[]) => Promise<VideoReader>;
}
export interface FontMetrics {
    ascent: number;
    descent: number;
    xHeight: number;
    capHeight: number;
}
export interface Stroke {
    width: number;
    cap: ctor;
    join: ctor;
    miterLimit: number;
}
export interface ScalerContext {
    fontString: (fauxBold: boolean, fauxItalic: boolean) => string;
    getAdvance: (text: string) => number;
    getBounds: (text: string, fauxBold: boolean, fauxItalic: boolean) => Rect;
    getFontMetrics: () => FontMetrics;
    readPixels: (text: string, bounds: Rect, fauxBold: boolean, stroke?: Stroke) => Uint8Array | null;
}
export interface ScalerContextConstructor {
    isEmoji: (text: string) => boolean;
    new (fontName: string, fontStyle: string, size: number, fauxBold: boolean, fauxItalic: boolean): ScalerContext;
}