face-api/src/dom/getMediaDimensions.ts

import { Dimensions, IDimensions } from '../classes/Dimensions';
import { env } from '../env/index';

export function getMediaDimensions(input: HTMLImageElement | HTMLCanvasElement | HTMLVideoElement | IDimensions): Dimensions {
  const { Image, Video } = env.getEnv();

  if (input instanceof Image) {
    return new Dimensions(input.naturalWidth, input.naturalHeight);
  }
  if (input instanceof Video) {
    return new Dimensions(input.videoWidth, input.videoHeight);
  }
  return new Dimensions(input.width, input.height);
}