import { QrcodeErrorCallback, QrcodeSuccessCallback, Html5QrcodeSupportedFormats, Html5QrcodeResult, QrDimensions, QrDimensionFunction } from "./core";
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import { CameraDevice, CameraCapabilities } from "./camera/core";
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import { ExperimentalFeaturesConfig } from "./experimental-features";
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import { Html5QrcodeScannerState } from "./state-manager";
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export interface Html5QrcodeConfigs {
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formatsToSupport?: Array<Html5QrcodeSupportedFormats> | undefined;
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useBarCodeDetectorIfSupported?: boolean | undefined;
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experimentalFeatures?: ExperimentalFeaturesConfig | undefined;
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}
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export interface Html5QrcodeFullConfig extends Html5QrcodeConfigs {
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verbose: boolean | undefined;
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}
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export interface Html5QrcodeCameraScanConfig {
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fps: number | undefined;
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qrbox?: number | QrDimensions | QrDimensionFunction | undefined;
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aspectRatio?: number | undefined;
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disableFlip?: boolean | undefined;
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videoConstraints?: MediaTrackConstraints | undefined;
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}
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export declare class Html5Qrcode {
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private readonly logger;
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private readonly elementId;
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private readonly verbose;
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private readonly qrcode;
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private shouldScan;
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private element;
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private canvasElement;
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private scannerPausedUiElement;
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private hasBorderShaders;
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private borderShaders;
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private qrMatch;
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private renderedCamera;
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private foreverScanTimeout;
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private qrRegion;
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private context;
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private lastScanImageFile;
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private stateManagerProxy;
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isScanning: boolean;
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constructor(elementId: string, configOrVerbosityFlag?: boolean | Html5QrcodeFullConfig | undefined);
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start(cameraIdOrConfig: string | MediaTrackConstraints, configuration: Html5QrcodeCameraScanConfig | undefined, qrCodeSuccessCallback: QrcodeSuccessCallback | undefined, qrCodeErrorCallback: QrcodeErrorCallback | undefined): Promise<null>;
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pause(shouldPauseVideo?: boolean): void;
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resume(): void;
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getState(): Html5QrcodeScannerState;
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stop(): Promise<void>;
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scanFile(imageFile: File, showImage?: boolean): Promise<string>;
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scanFileV2(imageFile: File, showImage?: boolean): Promise<Html5QrcodeResult>;
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clear(): void;
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static getCameras(): Promise<Array<CameraDevice>>;
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getRunningTrackCapabilities(): MediaTrackCapabilities;
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getRunningTrackSettings(): MediaTrackSettings;
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getRunningTrackCameraCapabilities(): CameraCapabilities;
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applyVideoConstraints(videoConstaints: MediaTrackConstraints): Promise<void>;
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private getRenderedCameraOrFail;
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private getSupportedFormats;
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private getUseBarCodeDetectorIfSupported;
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private validateQrboxSize;
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private validateQrboxConfig;
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private toQrdimensions;
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private setupUi;
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private createScannerPausedUiElement;
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private scanContext;
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private foreverScan;
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private createVideoConstraints;
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private computeCanvasDrawConfig;
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private clearElement;
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private possiblyUpdateShaders;
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private possiblyCloseLastScanImageFile;
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private createCanvasElement;
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private getShadedRegionBounds;
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private possiblyInsertShadingElement;
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private insertShaderBorders;
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private showPausedState;
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private hidePausedState;
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private getTimeoutFps;
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}
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