/**
 * Audio Levels Store
 * Svelte 5 store for VU meter / audio level monitoring
 */
import type { IngestControllerV2 } from "@livepeer-frameworks/streamcrafter-core";
export interface AudioLevelsState {
    level: number;
    peakLevel: number;
    isMonitoring: boolean;
}
export interface AudioLevelsStore {
    subscribe: (fn: (state: AudioLevelsState) => void) => () => void;
    startMonitoring: () => void;
    stopMonitoring: () => void;
    destroy: () => void;
}
/**
 * Create an audio levels store for VU meter
 *
 * @example
 * ```svelte
 * <script>
 *   const crafter = createStreamCrafterContextV2();
 *   const levels = createAudioLevelsStore(crafter.getController);
 * </script>
 *
 * <div class="vu-meter">
 *   <div style:width="{$levels.level * 100}%" />
 * </div>
 * ```
 */
export declare function createAudioLevelsStore(getController: () => IngestControllerV2 | null, options?: {
    autoStart?: boolean;
}): AudioLevelsStore;