How to access current video frame in Expo Camera?

I'm trying to access the current video frame in React Native. I was able to do the same with 'react-webcam' while using React.js with the below code.

import React from "react";
import Webcam from "react-webcam";

function MyFunc () {

  const cameraRef = useRef(null);

  const processFrame = async() => {
    if (cameraRef.current.video){
      const img = cameraRef.current.video;
      // Code to process.
    };
    setTimeout(() => processFrame(), 500)
  };

  React.useEffect(() => {
    processFrame();
  }, [])

  return (
    <Webcam
      align="center"
      audio={false}
      mirrored={false}
      id="img"
      ref={cameraRef}
      style={{display: "none"}}
    />
  );
};

My current code in React Native using Expo Camera is -

import React, { useState, useEffect, useRef } from "react";

import { Camera } from "expo-camera";

export function MyFunc () {

  const cameraRef = useRef(null);

  const processFrame = async () => {
    const img = cameraRef.current.video;
    console.log(img); // This prints undefined

    setTimeout(() => processFrame(), 500)
  };

  useEffect(() => {
    processFrame();
  }, []);

  return (
    <Camera
      ref={cameraRef}
      type={Camera.Constants.Type.front}
      style={{opacity: 0, width:1, height:1}}
    />
  );
};

Please let me know how can I access the current video frame without using the asyncTakePicture if possible.