import Logger from '../logger/Logger';
import VideoStreamIndex from '../videostreamindex/VideoStreamIndex';
import { VideoPreferences } from './VideoPreferences';
import VideoPriorityBasedPolicy from './VideoPriorityBasedPolicy';
/**
 * [[VideoAdaptiveProbePolicy]] wraps [[VideoPriorityBasedPolicy]] with customized behavior to automatically
 * assign a high preference to content share. This is a legacy policy used by default when simulcast is enabled, but
 * all customers should be using `VideoPriorityBasedPolicy` instead, since this policy does not work with
 * server side network adaptation.
 *
 * You can imitate this classes behavior using the `VideoPriorityBasedPolicy` with the following snippet
 * ```
 *   remoteVideoSourcesDidChange(videoSources: VideoSource[]) {
 *     const videoPreferences = VideoPreferences.prepare();
 *     for(const source of videoSources) {
 *        const isContent = source.attendee.attendeeId.endsWith(ContentShareConstants.Modality);
 *        videoPreferences.add(new VideoPreference(source.attendee.attendeeId, isContent ? 2: 1, TargetDisplaySize.High));
 *     }
 *     this.priorityBasedDownlinkPolicy.chooseRemoteVideoSources(videoPreferences.build());
 *   }
 * ```
 */
export default class VideoAdaptiveProbePolicy extends VideoPriorityBasedPolicy {
    protected logger: Logger;
    private static createConfig;
    constructor(logger: Logger);
    reset(): void;
    updateIndex(videoIndex: VideoStreamIndex): void;
    /**
     * [[VideoAdaptiveProbePolicy]] does not allow setting video preferences and this function
     * will be a no-op.  Please use [[VideoPriorityBasedPolicy]] directly if you would like to set
     * preferences.
     */
    chooseRemoteVideoSources(_preferences: VideoPreferences): void;
}