import { DisabledEncodedTransformsConfiguration } from '../encodedtransformworker/EncodedTransformWorker';
import MediaMetricsTransformManager from './MediaMetricsEncodedTransformManager';
import RedundantAudioEncodedTransformManager from './RedundantAudioEncodedTransformManager';
/**
 * Observer interface for media transform manager events.
 */
export interface EncodedTransformWorkerManagerObserver {
    /**
     * Called when the encoded transform manager encounters a failure.
     */
    onEncodedTransformWorkerManagerFailed?(error: Error): void;
}
/**
 * Interface for managing media transforms across audio and video streams.
 * Implementations coordinate transform managers and handle Web Worker lifecycle.
 */
export default interface EncodedTransformWorkerManager {
    /**
     * Check if media transforms are enabled. If this class runs into any issue during a transform
     * it should disable itself.
     *
     * @returns true if transforms are enabled and supported
     */
    isEnabled(): boolean;
    /**
     * Start the manager and create the Web Worker
     *
     * @param disabledTransforms - Optional configuration to disable specific transforms.
     *                             By default all transforms are enabled (false = enabled).
     *                             - redundantAudio: When true, redundant audio encoding transform is disabled.
     */
    start(disabledTransforms?: DisabledEncodedTransformsConfiguration): Promise<void>;
    /**
     * Get the redundant audio encode transform manager for access to transform specific functionality
     */
    redundantAudioEncodeTransformManager(): RedundantAudioEncodedTransformManager | undefined;
    /**
     * Get the media metrics transform manager for access to transform specific functionality
     */
    metricsTransformManager(): MediaMetricsTransformManager | undefined;
    /**
     * Set up encoded transforms for an audio sender
     */
    setupAudioSenderTransform(sender: RTCRtpSender): void;
    /**
     * Set up encoded transforms for an audio receiver
     */
    setupAudioReceiverTransform(receiver: RTCRtpReceiver): void;
    /**
     * Set up encoded transforms for a video sender
     */
    setupVideoSenderTransform(sender: RTCRtpSender): void;
    /**
     * Set up encoded transforms for a video receiver
     */
    setupVideoReceiverTransform(receiver: RTCRtpReceiver): void;
    /**
     * Add an observer to receive transform manager events
     */
    addObserver(observer: EncodedTransformWorkerManagerObserver): void;
    /**
     * Remove an observer
     */
    removeObserver(observer: EncodedTransformWorkerManagerObserver): void;
    /**
     * Stop all transform managers and reset to initial state
     */
    stop(): Promise<void>;
}