import type { QualityLevel } from '@vizor-vr/shared';
import type { PlayerState } from '../core/player-state.js';
import type { IStreamingAdapter } from './types.js';
/**
 * Coordinates quality switching between the streaming adapter and PlayerState.
 * Provides a clean API for the quality menu control.
 */
export declare class QualitySelector {
    private adapter;
    private state;
    constructor(state: PlayerState);
    /** Connect to the current streaming adapter */
    setAdapter(adapter: IStreamingAdapter): void;
    /** Get available quality levels */
    getLevels(): QualityLevel[];
    /** Set quality by index (-1 = auto) */
    setLevel(index: number): void;
    /** Whether auto quality (ABR) is active */
    get isAuto(): boolean;
    /** Whether the adapter supports quality switching */
    get supportsQuality(): boolean;
    /** Sync state from adapter */
    private syncState;
}
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