import { DisabledEncodedTransformsConfiguration } from '../encodedtransformworker/EncodedTransformWorker';
import Logger from '../logger/Logger';
import EncodedTransformWorkerManager, { EncodedTransformWorkerManagerObserver } from './EncodedTransformWorkerManager';
import MediaMetricsTransformManager from './MediaMetricsEncodedTransformManager';
import RedundantAudioEncodedTransformManager from './RedundantAudioEncodedTransformManager';
/**
 * Default implementation of EncodedTransformWorkerManager.
 * Manages a dedicated Web Worker and coordinates individual transform managers.
 */
export default class DefaultEncodedTransformWorkerManager implements EncodedTransformWorkerManager {
    private worker;
    private logger;
    private workerURL;
    private observers;
    private disabled;
    private disabledTransforms;
    private redManager;
    private metricsManager;
    private readonly supportsRTCScriptTransform;
    private readonly supportsInsertableStreams;
    constructor(logger: Logger);
    /**
     * Check if media transforms are enabled
     */
    isEnabled(): boolean;
    start(disabledTransforms?: DisabledEncodedTransformsConfiguration): Promise<void>;
    redundantAudioEncodeTransformManager(): RedundantAudioEncodedTransformManager | undefined;
    metricsTransformManager(): MediaMetricsTransformManager | undefined;
    setupAudioSenderTransform(sender: RTCRtpSender): void;
    setupAudioReceiverTransform(receiver: RTCRtpReceiver): void;
    setupVideoSenderTransform(sender: RTCRtpSender): void;
    setupVideoReceiverTransform(receiver: RTCRtpReceiver): void;
    /**
     * Helper to set up transform on sender or receiver
     */
    private setupTransform;
    /**
     * Stop all transform managers and release resources
     */
    stop(): Promise<void>;
    /**
     * Add an observer to receive transform manager events
     */
    addObserver(observer: EncodedTransformWorkerManagerObserver): void;
    /**
     * Remove an observer
     */
    removeObserver(observer: EncodedTransformWorkerManagerObserver): void;
    private handleWorkerMessage;
    /**
     * Handle errors from the Web Worker
     * Disables transforms and notifies observers
     */
    private handleWorkerError;
    /**
     * Create a new Web Worker instance
     */
    private createWorker;
    /**
     * Disable media transforms
     */
    private disable;
}