jitsi-meet/react/features/base/media/constants.js

/**
 * The set of facing modes for camera.
 *
 * @enum {string}
 */
export const CAMERA_FACING_MODE = {
    ENVIRONMENT: 'environment',
    USER: 'user'
};

/**
 * The set of media types for a track.
 *
 * @enum {string}
 */
export const MEDIA_TYPE = {
    AUDIO: 'audio',
    VIDEO: 'video'
};

/**
 * The set of video types for a video track.
 * @enum {string}
 */
export const VIDEO_TYPE = {
    CAMERA: 'camera',
    DESKTOP: 'desktop'
};