import { MediaType, ReceiveSlot as WcmeReceiveSlot } from '@webex/internal-media-core';
import { FindMemberIdCallback, ReceiveSlot } from './receiveSlot';
export type CreateSlotCallback = (mediaType: MediaType) => Promise<WcmeReceiveSlot>;
export type { CSI, FindMemberIdCallback } from './receiveSlot';
/**
 * Manages all receive slots used by a meeting. WMCE receive slots cannot be ever deleted,
 * so this manager has a pool in order to re-use the slots that were released earlier.
 */
export declare class ReceiveSlotManager {
    private allocatedSlots;
    private freeSlots;
    private createSlotCallback;
    private findMemberIdByCsiCallback;
    /**
     * Constructor
     * @param {Meeting} meeting
     */
    constructor(createSlotCallback: CreateSlotCallback, findMemberIdByCsiCallback: FindMemberIdCallback);
    /**
     * Creates a new receive slot or returns one from the existing pool of free slots
     *
     * @param {MediaType} mediaType
     * @returns {Promise<ReceiveSlot>}
     */
    allocateSlot(mediaType: MediaType): Promise<ReceiveSlot>;
    /**
     * Releases the slot back to the pool so it can be re-used by others in the future
     * @param {ReceiveSlot} slot
     */
    releaseSlot(slot: ReceiveSlot): void;
    /**
     * Resets the slot manager - this method should be called when the media connection is torn down
     */
    reset(): void;
    /**
     * Returns statistics about the managed slots
     *
     * @returns {Object}
     */
    getStats(): {
        numAllocatedSlots: {};
        numFreeSlots: {};
    };
    /**
     * Tries to find the member id on all allocated receive slots
     * This function should be called when new members are added to the meeting.
     */
    updateMemberIds(): void;
    /**
     * Find a receive slot by a ssrc.
     *
     * @param ssrc - The ssrc of the receive slot to find.
     * @returns - The receive slot with this ssrc, undefined if not found.
     */
    findReceiveSlotBySsrc(ssrc: number): ReceiveSlot | undefined;
}