import { IssueDetectorResult, WebRTCStatsParsed } from '../types';
import BaseIssueDetector, { PrevStatsCleanupPayload } from './BaseIssueDetector';
declare class UnknownVideoDecoderImplementationDetector extends BaseIssueDetector {
    #private;
    readonly UNKNOWN_DECODER = "unknown";
    performDetection(data: WebRTCStatsParsed): IssueDetectorResult;
    protected performPrevStatsCleanup(payload: PrevStatsCleanupPayload): void;
    private processData;
    private setLastDecoderWithIssue;
    private hadLastDecoderWithIssue;
}
export default UnknownVideoDecoderImplementationDetector;