import type { ParsedPlaylist, PlaylistSegment, SegmentData, SegmentDecoder } from './types';
export interface SegmentLoaderOptions {
    cacheSize?: number;
    decoder: SegmentDecoder;
    baseUrl: string;
    fetchFn?: typeof fetch;
}
export declare class SegmentLoader {
    private cache;
    private inflight;
    private abortControllers;
    private decoder;
    private baseUrl;
    private fetchFn;
    constructor(options: SegmentLoaderOptions);
    setDecoder(decoder: SegmentDecoder): void;
    setBaseUrl(baseUrl: string): void;
    /**
     * Load a segment: returns cached data if available, otherwise fetches + decodes.
     */
    load(segment: PlaylistSegment, playlist: ParsedPlaylist): Promise<SegmentData>;
    /**
     * Prefetch segments in the background. Errors are silently ignored.
     */
    prefetch(segments: PlaylistSegment[], playlist: ParsedPlaylist): void;
    /**
     * Abort all inflight fetch requests.
     */
    abortAll(): void;
    has(uri: string): boolean;
    clear(): void;
    private resolveUrl;
    private fetchRaw;
}
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