Se afirma en este postUso de la nueva Unity VideoPlayer y VideoClip API para reproducir video que se puede "recuperar textura para cada cuadro si es necesario"

¿Cuál es la forma correcta de obtener el marco actual como un Texture2D, por favor?

EDITAR:

Después de la respuesta hice esto pero no funciona:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Video;

public class AverageColorFromTexture : MonoBehaviour {

    public VideoClip videoToPlay;
    public Light lSource;

    private Color targetColor;
    private VideoPlayer videoPlayer;
    private VideoSource videoSource;
    private Renderer rend;
    private Texture tex;
    private AudioSource audioSource;

    void Start()
    {
        Application.runInBackground = true;
        StartCoroutine(playVideo());
    }

    IEnumerator playVideo()
    {

        rend = GetComponent<Renderer>();

        videoPlayer = gameObject.AddComponent<VideoPlayer>();
        audioSource = gameObject.AddComponent<AudioSource>();

        //Disable Play on Awake for both Video and Audio
        videoPlayer.playOnAwake = false;
        audioSource.playOnAwake = false;

        videoPlayer.source = VideoSource.VideoClip;
        videoPlayer.audioOutputMode = VideoAudioOutputMode.AudioSource;
        videoPlayer.EnableAudioTrack(0, true);
        videoPlayer.SetTargetAudioSource(0, audioSource);

        //Set video To Play then prepare Audio to prevent Buffering
        videoPlayer.clip = videoToPlay;
        videoPlayer.Prepare();

        //Wait until video is prepared
        while (!videoPlayer.isPrepared)
        {
            Debug.Log("Preparing Video");
            yield return null;
        }
        Debug.Log("Done Preparing Video");

        //Assign the Texture from Video to Material texture
        tex = videoPlayer.texture;
        rend.material.mainTexture = tex;

        //Enable new frame Event
        videoPlayer.sendFrameReadyEvents = true;

        //Subscribe to the new frame Event
        videoPlayer.frameReady += OnNewFrame;

        //Play Video
        videoPlayer.Play();

        //Play Sound
        audioSource.Play();

        Debug.Log("Playing Video");
        while (videoPlayer.isPlaying)
        {
            Debug.LogWarning("Video Time: " + Mathf.FloorToInt((float)videoPlayer.time));
            yield return null;
        }
        Debug.Log("Done Playing Video");
    }

    void OnNewFrame(VideoPlayer source, long frameIdx)
    {
        Texture2D videoFrame = (Texture2D)source.texture;

        targetColor = CalculateAverageColorFromTexture(videoFrame);
        lSource.color = targetColor ;
    }


    Color32 CalculateAverageColorFromTexture(Texture2D tex)
    {
        Color32[] texColors = tex.GetPixels32();
        int total = texColors.Length;
        float r = 0;
        float g = 0;
        float b = 0;

        for(int i = 0; i < total; i++)
        {
            r += texColors[i].r;
            g += texColors[i].g;
            b += texColors[i].b;
        }
        return new Color32((byte)(r / total) , (byte)(g / total) , (byte)(b / total) , 0);
    }
}