import type { BasePlaylistItem, PreloadAsset } from '@nomercy-entertainment/nomercy-player-core';
import { DefaultPreloadStrategy } from '@nomercy-entertainment/nomercy-player-core';
/**
 * Video-domain preload strategy. Extends the kit's `DefaultPreloadStrategy`
 * to prefetch video-specific assets for the next queue item:
 *
 *  - HLS manifest (or direct video URL) — `'media'` / `metadata` mode
 *  - Poster image — `'poster'` / `auto` mode (small, load fully)
 *  - Sprite VTT (preview thumbnails) — `'sprite'` / `metadata`
 *  - Subtitle sidecars from `item.subtitles` — `'subtitle'` / `auto`
 *  - Chapter VTT sidecars from `tracks[].kind === 'chapters'` (the legacy
 *    field the normalizer preserves) — `'chapter'` / `auto`
 *  - Font manifests from `item.fonts` (ASS/SSA rendering — same `'font'`
 *    category `OctopusPlugin` resolves with) — `'font'` / `auto`
 *
 * Video crossfade is disabled by default (`GaplessTransitionStrategy`). Asset
 * preloading still runs so the next item starts instantly on hard-cut.
 */
export declare class VideoPreloadStrategy extends DefaultPreloadStrategy {
    assetsToPreload(item: BasePlaylistItem): PreloadAsset[];
}