import type { AudioTrack, VideoTrack, TextTrack } from 'react-native-video';
export declare const combineHandlers: <T extends (...args: any[]) => void>(...handlers: (T | undefined)[]) => (...args: Parameters<T>) => void;
/**
 * Deduplicates video tracks:
 * - Groups by width, height, codecs.
 * - Keeps the highest bitrate in each group.
 */
export declare function dedupeVideoTracks<T extends VideoTrack>(tracks: T[]): T[];
/**
 * Deduplicates audio/text tracks:
 * - Groups by language.
 * - Keeps the first occurrence of each language.
 * - Filters out tracks with null/undefined language.
 */
export declare function dedupeLanguageTracks<T extends AudioTrack | TextTrack>(tracks: T[]): T[];
/**
 * Convert HEX + alpha to RGBA string
 * @param hex - hex color (#RRGGBB or #RGB)
 * @param alpha - opacity (0 to 1)
 * @returns rgba(r,g,b,a)
 */
export declare function hexToRgba(hex: string, alpha: number): string;
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