import ClientMetricReport from '../clientmetricreport/ClientMetricReport';
import ClientVideoStreamReceivingReport from '../clientmetricreport/ClientVideoStreamReceivingReport';
import ConnectionHealthData from '../connectionhealthpolicy/ConnectionHealthData';
import EventAttributes from '../eventcontroller/EventAttributes';
import EventName from '../eventcontroller/EventName';
import MeetingSessionStatus from '../meetingsession/MeetingSessionStatus';
import MeetingSessionVideoAvailability from '../meetingsession/MeetingSessionVideoAvailability';
import SimulcastLayers from '../simulcastlayers/SimulcastLayers';
import VideoSource from '../videosource/VideoSource';
import VideoTileState from '../videotile/VideoTileState';
export default interface AudioVideoObserver {
    /**
     * Called when the session is connecting or reconnecting.
     */
    audioVideoDidStartConnecting?(reconnecting: boolean): void;
    /**
     * Called when the session has started.
     */
    audioVideoDidStart?(): void;
    /**
     * Called when the session has stopped from a started state with the reason
     * provided in the status.
     */
    audioVideoDidStop?(sessionStatus: MeetingSessionStatus): void;
    /**
     * Called whenever a tile has been created or updated.
     */
    videoTileDidUpdate?(tileState: VideoTileState): void;
    /**
     * Called whenever a tile has been removed.
     */
    videoTileWasRemoved?(tileId: number): void;
    /**
     * Called when video availability has changed. This information can be used to decide whether to
     * switch the connection type to video and whether or not to offer the option to start the local
     * video tile.
     */
    videoAvailabilityDidChange?(availability: MeetingSessionVideoAvailability): void;
    /**
     * Called when metric of video outbound traffic is received.
     */
    videoSendHealthDidChange?(bitrateKbps: number, packetsPerSecond: number): void;
    /**
     * Called when available video sending bandwidth changed.
     */
    videoSendBandwidthDidChange?(newBandwidthKbps: number, oldBandwidthKbps: number, nackCountPerSecond?: number): void;
    /**
     * Called when available video receiving bandwidth changed to trigger video subscription if needed.
     */
    videoReceiveBandwidthDidChange?(newBandwidthKbps: number, oldBandwidthKbps: number): void;
    /**
     * Called when total downlink video bandwidth estimation is less than required video bitrates.
     */
    estimatedDownlinkBandwidthLessThanRequired?(estimatedBandwidth: number, requiredBandwidth: number): void;
    /**
     * Called when one or more remote video streams do not meet expected average bitrate.
     */
    videoNotReceivingEnoughData?(receivingDataMap: ClientVideoStreamReceivingReport[]): void;
    /**
     * Called when the media stats are available.
     */
    metricsDidReceive?(clientMetricReport: ClientMetricReport): void;
    /**
     * Called when connection health has changed.
     */
    connectionHealthDidChange?(connectionHealthData: ConnectionHealthData): void;
    /**
     * Called when the connection has been poor for a while if meeting only uses audio.
     */
    connectionDidBecomePoor?(): void;
    /**
     * Called when the connection has been poor if meeting uses video so that the observer
     * can prompt the user about turning off video.
     */
    connectionDidSuggestStopVideo?(): void;
    /**
     * Called when connection has changed to good from poor. This will be fired regardless whether the meeting
     * is audio-only or uses audio video.
     */
    connectionDidBecomeGood?(): void;
    /**
     * Called when a user tries to start a video but by the time the backend processes the request,
     * video capacity has been reached and starting local video is not possible. This can be used to
     * trigger a message to the user about the situation.
     */
    videoSendDidBecomeUnavailable?(): void;
    /**
     * Called when specific events occur during the meeting and includes attributes of the event. This can be used to
     * create analytics around meeting metric.
     */
    eventDidReceive?(name: EventName, attributes: EventAttributes): void;
    /**
     * Called when the remote video sending sources get changed.
     */
    remoteVideoSourcesDidChange?(videoSources: VideoSource[]): void;
    /**
     * Called when simulcast is enabled and simulcast uplink encoding layers get changed.
     */
    encodingSimulcastLayersDidChange?(simulcastLayers: SimulcastLayers): void;
}