export declare enum HMSVideoCodec {
    VP8 = "vp8",
    VP9 = "vp9",
    H264 = "h264"
}
export declare enum HMSAudioCodec {
    OPUS = "opus"
}
/**
 * Refer https://developer.mozilla.org/en-US/docs/Web/API/MediaTrackConstraints/facingMode
 * for more details.
 */
export declare enum HMSFacingMode {
    USER = "user",
    ENVIRONMENT = "environment",
    LEFT = "left",
    RIGHT = "right"
}
export declare enum HMSAudioMode {
    VOICE = "voice",
    MUSIC = "music"
}
export interface HMSAudioTrackSettings {
    volume?: number;
    codec?: HMSAudioCodec;
    maxBitrate?: number;
    deviceId?: string;
    advanced?: Array<MediaTrackConstraintSet>;
    audioMode?: HMSAudioMode;
}
export interface HMSVideoTrackSettings {
    width?: number;
    height?: number;
    codec?: HMSVideoCodec;
    maxFramerate?: number;
    maxBitrate?: number;
    deviceId?: string;
    advanced?: Array<MediaTrackConstraintSet>;
    facingMode?: HMSFacingMode;
}
/**
 * Config to have control over screenshare being captured. Note that
 * not all fields are supported on all browsers. Even when they're supported
 * the fields acts as hints and the browser can override them.
 */
export interface HMSScreenShareConfig {
    /**
     * discard the video and only share audio track with others, useful
     * for sharing music.
     * @default false
     */
    audioOnly?: boolean;
    /**
     * do not give an option to share audio while screen sharing.
     * @default false
     */
    videoOnly?: boolean;
    /**
     * preselect the relevant tab in screenshare menu
     * browser - for preferring a browser tab
     * window - for application window
     * monitor - for full screen
     * @default monitor
     */
    displaySurface?: 'browser' | 'monitor' | 'window';
    /**
     * show the current tab first in supported browser, throws
     * error if user doesn't select current tab for sharing.
     * @default false
     */
    forceCurrentTab?: boolean;
    /**
     * show the current tab first in supported browser, but don't throw error
     * if user selects something else.
     * @default false
     */
    preferCurrentTab?: boolean;
    /**
     * whether to show an option for sharing the current tab in the screen share
     * prompt. Screen sharing current tab might lead to hall of mirrors effect.
     * Default is exclude, if either of forceCurrentTab or preferCurrentTab are true,
     * this is set to include.
     * @default exclude
     */
    selfBrowserSurface?: 'include' | 'exclude';
    /**
     * whether to hint browser to show a "share this tab instead" option when
     * tab is shared.
     * Default is include, set to exclude if forceCurrentTab is true
     * @default include
     */
    surfaceSwitching?: 'include' | 'exclude';
    /**
     * whether to show option for sharing system level audio if full screen
     * is being shared. Not applicable if isVideoOnly is true.
     * Note that sharing system audio will cause echo if mic is on.
     * @default exclude
     */
    systemAudio?: 'include' | 'exclude';
    /**
     * used for region capture in screenshare, if the current tab is being screenshared
     * the screenshare video track will be cropped to only this element. Will throw
     * error if the element is not present in DOM.
     */
    cropElement?: HTMLDivElement;
    /**
     * used for region capture in screenshare, the screenshare video track will be
     * cropped to only the passed in cropTarget. This cropTarget must come from
     * the tab which is being shared
     */
    cropTarget?: object;
}
export interface ScreenCaptureHandle {
    handle: string;
    exposeOrigin: boolean;
}
export interface ScreenCaptureHandleConfig extends ScreenCaptureHandle {
    permittedOrigins: string[];
}