import { LitElement } from 'lit';
import type { Call } from '../types/index.js';
import './UI/icons/sw-ui-icon.js';
/**
 * Local camera preview. Adapts its aspect-ratio to match the actual
 * video track (landscape or portrait).
 *
 * Input precedence : `.stream`/`.videoMuted` > `.call` > context.
 *
 * @prop {MediaStream|null} stream     - explicit stream (overrides .call and context)
 * @prop {boolean}          videoMuted - explicit muted flag (overrides context)
 * @prop {Call}             call       - explicit Call object (overrides context)
 * @prop {boolean}          mirror     - mirror the video horizontally
 *
 * @csspart video       - The `<video>` element.
 * @csspart placeholder - Camera-off overlay shown while muted.
 *
 * @cssprop [--sw-local-camera-aspect=16/9] - Aspect ratio; auto-set from track settings when available.
 */
export declare class SwLocalCamera extends LitElement {
    /** Explicit stream — highest precedence. */
    stream: MediaStream | null;
    /** Explicit muted flag — overrides devicesContext.videoMuted. */
    videoMuted?: boolean;
    /** Explicit Call — used when `.stream` is not set. Bypasses context. */
    call?: Call;
    mirror: boolean;
    private _callState?;
    private _devicesState?;
    private _directLocalStream;
    private _directSubscriptions;
    /** Detected aspect ratio from the video track, e.g. "16 / 9" or "9 / 16". */
    private _aspectRatio;
    /** Last stream reference attached to the video element — used to skip no-op re-attaches. */
    private _attachedStream;
    static styles: import("lit").CSSResult;
    private get _effectiveStream();
    private get _effectiveMuted();
    protected firstUpdated(): void;
    protected updated(changedProperties: Map<string, unknown>): void;
    disconnectedCallback(): void;
    private _setupDirect;
    private _teardownDirect;
    /** Read the video track settings and set the CSS custom property. */
    private _detectAspectRatio;
    render(): import("lit-html").TemplateResult<1>;
}
declare global {
    interface HTMLElementTagNameMap {
        'sw-local-camera': SwLocalCamera;
    }
}
//# sourceMappingURL=sw-local-camera.d.ts.map