import { WebVisualContainer } from "./web-visual-container.js";
import { CameraFacingMode, CameraFrame, ICamera } from "../../interfaces/verification-system-interfaces.js";
/**
 * Camera device info with facing mode detection
 */
export interface CameraDeviceInfo {
    /**
     * Device ID
     */
    deviceId: string;
    /**
     * Device label
     */
    label: string;
    /**
     * Detected facing mode ('user' or 'environment')
     */
    facingMode: CameraFacingMode;
    /**
     * Resolution width
     */
    width?: number;
    /**
     * Resolution height
     */
    height?: number;
    /**
     * Computed score for camera selection
     */
    score?: number;
}
/**
 * Web platform implementation of the camera
 */
export declare class WebCamera implements ICamera {
    private static readonly DEFAULT_RESOLUTION;
    facingMode: CameraFacingMode;
    private videoElement;
    private containerElement;
    private roiContainer;
    private canvas;
    private mediaStream;
    private actualStreamWidth;
    private actualStreamHeight;
    private active;
    private cameraIndex;
    private currentCamera;
    private hasLoggedCapture;
    private frameProcessingResolution;
    private cachedFrame;
    private frameRequested;
    private videoFrameCallbackHandle;
    private frameProcessorWorker;
    private isProcessing;
    private orientationChangeHandler;
    /**
     * Create a new web camera instance
     * @param container
     * @param roiContainer
     */
    constructor(container: WebVisualContainer, roiContainer?: WebVisualContainer | null);
    /**
     * Switch to the next camera
     */
    canSwitchCamera(): Promise<boolean>;
    /**
     * Clean up resources
     */
    dispose(): void;
    /**
     * Capture and return the current frame
     * Pattern: null (request frame) -> frame (request frame) -> frame -> frame...
     * The actual capture happens in the video frame callback
     */
    getFrame(): Promise<CameraFrame | null>;
    /**
     * Video frame callback - called once when frame is requested
     * Creates ImageBitmap and sends to worker, does NOT re-schedule itself
     */
    private onVideoFrame;
    /**
     * Capture and return the current frame as a JPEG-encoded Blob at sensor resolution
     * Tries ImageCapture API first (Android), falls back to video element capture
     */
    getHighResolutionFrameAsEncodedBlob(resolution?: number): Promise<Blob | null>;
    /**
     * Get the video element (if available)
     */
    getVideoElement(): HTMLVideoElement | null;
    init(): Promise<void>;
    /**
     * Check if camera is currently active
     */
    isActive(): boolean;
    /**
     * Start the camera
     */
    start(facingMode?: CameraFacingMode, resolution?: number): Promise<boolean>;
    /**
     * Stop the camera
     */
    stop(): Promise<void>;
    /**
     * Switch to the next camera
     */
    switchCamera(): Promise<boolean>;
    setTorch(on: boolean): Promise<void>;
    private static getMediaStream;
    private isMirrored;
    private buildVideoConstraints;
    private setupOrientationListener;
    private removeOrientationListener;
    /**
     * Calculate the crop region (insets) based on container and ROI
     */
    private calculateCropRegion;
    /**
     * Prepare crop and scale parameters for frame capture
     * Calculates both the crop region and the target dimensions after scaling
     */
    private prepareCropAndScaleParams;
    /**
     * Draw cropped and optionally mirrored frame from video/image to canvas
     */
    private drawCroppedAndMirroredFrame;
}
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