Unity AVPro Video 加载视频第一秒图片与例子

使用AVPro Video 加载视频第一秒的图片
原理：使用AVPro Video插件的MediaPlayer
mediaPlayer.OpenMedia(new MediaPath(url链接, MediaPathType.AbsolutePathOrURL), false);
然后等待一定时间
使用ExtractFrame截取视频
Texture2D texture2D = mediaPlayer.ExtractFrame(null, 1);

UI效果：

点击图片进行播放，在点击一下关闭播放

部分代码：

using RenderHeads.Media.AVProVideo;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics.Tracing;
using UnityEngine;
using UnityEngine.UI;

    [SerializeField] private MediaPlayer mediaPlayer;
    [SerializeField] private DisplayUGUI displayUGUI;           //显示视频
    //预制体 => 一个Image
    [SerializeField] private GameObject VideoPlayerPre;         //视频
    
    [SerializeField] private bool LoadFinish;                   //所有链接都加载完成的标记
    
    // Start is called before the first frame update
    void Start()
    {
        Init();
    }
    
	private void Init()
    {
        if (mediaPlayer == null)
        {
            mediaPlayer = transform.Find("MediaPlayer").GetComponent<MediaPlayer>();
        }
        //mediaPlayer.Events.AddListener(OnMediaPlayerEvent); //事件监听

        if (displayUGUI == null)
        {
            displayUGUI = transform.Find("VideoDisplay").GetComponent<DisplayUGUI>();
            if (displayUGUI.CurrentMediaPlayer == null)
            {
                displayUGUI.CurrentMediaPlayer = mediaPlayer;
            }
        }
        //按需添加, 我的需求是设备是摄像机(播放视频流)时,displayUGUI没有点击事件，设备告警(会有mp4视频链接), displayUGUI有点击事件(可以关闭,打开另一个视频)
        //EventTriggerListener.Get(displayUGUI.gameObject).OnClick = (go) => CloseVideo();
    }
    
    /// <summary>
    /// 加载视频第一秒图片
    /// </summary>
    /// <param name="url"></param>
    /// <returns></returns>
    private IEnumerator LoadVideo(List<string> urls)
    {
        yield return null;  //下一帧开始处理

        Debug.Log("开始执行...");

        if (urls.Count == 0) yield break;

        for (int i = 0; i < urls.Count; i++)
        {
            mediaPlayer.OpenMedia(new MediaPath(urls[i], MediaPathType.AbsolutePathOrURL), false);
            //等待0.3秒,按需调整等待时间
            Debug.Log("开始等待0.3秒, i = " + i);
            yield return new WaitForSeconds(0.5f);
            Debug.Log("结束等待0.3秒, i = " + i);
            //取第一秒的图
            Texture2D texture2D = mediaPlayer.ExtractFrame(null, 1);
            if (texture2D == null)
            {
                Debug.LogWarning($"需要调整等待时间 i = {i} url = {urls[i]}");   //加载失败
                continue;
            }
            //将视频第一秒加载到图片上
            GameObject video = Instantiate<GameObject>(VideoPlayerPre);
            video.SetActive(true);
            video.transform.SetParent(scrollRect.content);
            //需要用Image, 我尝试使用RawImage无法显示图像
            video.GetComponent<Image>().sprite = Sprite.Create(texture2D, new Rect(0, 0, texture2D.width, texture2D.height), new Vector2(0.5f, 0.5f));
            video.GetComponent<VideoUrlInfo>().videoUrl = urls[i];   //将数据保存到VideoUrlInfo组件上
            //给图片添加点击事件,我这里的需求是点击后才播放视频
            EventTriggerListener.Get(video).OnClick = (go) => PlayVideo(go.GetComponent<VideoUrlInfo>().videoUrl);
            yield return null;
        }

        LoadFinish = true;
    }

所有代码：

/* ======================================================================================
*      作 者：
*      主 题：
*      主要功能：

*      详细描述：

*      创建时间：2022-11-11 19:52:34
*      修改记录：
*      版 本：1.0
  =======================================================================================*/
using RenderHeads.Media.AVProVideo;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics.Tracing;
using UnityEngine;
using UnityEngine.UI;

public class TestAVPro : MonoBehaviour
{
    [SerializeField] private MediaPlayer mediaPlayer;
    [SerializeField] private DisplayUGUI displayUGUI;           //显示视频

    [SerializeField] private ScrollRect scrollRect;             //滚动视图

    //预制体
    [SerializeField] private GameObject VideoPlayerPre;         //视频

    [SerializeField] private bool LoadFinish;                   //所有链接都加载完成的标记

    // Start is called before the first frame update
    void Start()
    {
        Init();
        //测试
        Test();
    }

    /// <summary>
    /// 加载视频
    /// </summary>
    /// <param name="url"></param>
    /// <returns></returns>
    private IEnumerator LoadVideo(List<string> urls)
    {
        yield return null;  //下一帧开始处理

        Debug.Log("开始执行...");

        if (urls.Count == 0) yield break;

        for (int i = 0; i < urls.Count; i++)
        {
            mediaPlayer.OpenMedia(new MediaPath(urls[i], MediaPathType.AbsolutePathOrURL), false);
            //等待0.3秒,按需调整等待时间
            Debug.Log("开始等待0.3秒, i = " + i);
            yield return new WaitForSeconds(0.5f);
            Debug.Log("结束等待0.3秒, i = " + i);
            //取第一秒的图
            Texture2D texture2D = mediaPlayer.ExtractFrame(null, 1);
            if (texture2D == null)
            {
                Debug.LogWarning($"需要调整等待时间 i = {i} url = {urls[i]}");   //加载失败
                continue;
            }
            //将视频第一秒加载到图片上
            GameObject video = Instantiate<GameObject>(VideoPlayerPre);
            video.SetActive(true);
            video.transform.SetParent(scrollRect.content);
            //需要用Image, 我尝试使用RawImage无法显示图像
            video.GetComponent<Image>().sprite = Sprite.Create(texture2D, new Rect(0, 0, texture2D.width, texture2D.height), new Vector2(0.5f, 0.5f));
            video.GetComponent<VideoUrlInfo>().videoUrl = urls[i];   //将数据保存到VideoUrlInfo组件上
            //给图片添加点击事件,我这里的需求是点击后才播放视频
            EventTriggerListener.Get(video).OnClick = (go) => PlayVideo(go.GetComponent<VideoUrlInfo>().videoUrl);
            yield return null;
        }

        LoadFinish = true;
    }

    /// <summary>
    /// 图片被点击播放视频(图片是第一秒的视频)
    /// </summary>
    /// <param name="url"></param>
    private void PlayVideo(string url)
    {
        if (!LoadFinish) return;
        if (url.IsNullOrEmpty()) return;

        displayUGUI.gameObject.SetActive(true);
        mediaPlayer.OpenMedia(new MediaPath(url, MediaPathType.AbsolutePathOrURL));
    }

    private void Init()
    {
        if (mediaPlayer == null)
        {
            mediaPlayer = transform.Find("MediaPlayer").GetComponent<MediaPlayer>();
        }
        mediaPlayer.Events.AddListener(OnMediaPlayerEvent); //事件监听

        if (displayUGUI == null)
        {
            displayUGUI = transform.Find("VideoDisplay").GetComponent<DisplayUGUI>();
            if (displayUGUI.CurrentMediaPlayer == null)
            {
                displayUGUI.CurrentMediaPlayer = mediaPlayer;
            }
        }
        //按需添加, 我的需求是设备是摄像机(播放视频流)时,displayUGUI没有点击事件，设备告警(会有mp4视频链接), displayUGUI有点击事件(可以关闭,打开另一个视频)
        EventTriggerListener.Get(displayUGUI.gameObject).OnClick = (go) => CloseVideo();

        if (scrollRect == null)
        {
            scrollRect = transform.Find("ScrollView").GetComponent<ScrollRect>();
        }

        if (VideoPlayerPre == null)
            this.VideoPlayerPre = transform.Find("VideoPlayerPre").gameObject;
        VideoPlayerPre.SetActive(false);    //不需要显示
    }

    private void Test()
    {
        List<string> urls = new List<string>();
        //网上找的测试地址
        urls.Add("http://vfx.mtime.cn/Video/2019/02/04/mp4/190204084208765161.mp4");    //驯龙高手
        urls.Add("http://vfx.mtime.cn/Video/2019/03/21/mp4/190321153853126488.mp4");    //紧急救援
        urls.Add("http://vfx.mtime.cn/Video/2019/03/19/mp4/190319222227698228.mp4");    //玩具总动员
        urls.Add("http://vfx.mtime.cn/Video/2019/03/19/mp4/190319212559089721.mp4");    //叶问4 先行预告甄子丹过招美
        urls.Add("http://vfx.mtime.cn/Video/2019/03/18/mp4/190318231014076505.mp4");    //预告刘德华对决古天
        urls.Add("http://vfx.mtime.cn/Video/2021/07/10/mp4/210710171112971120.mp4");
        urls.Add("http://vfx.mtime.cn/Video/2021/07/10/mp4/210710122716702150.mp4");
        urls.Add("http://vfx.mtime.cn/Video/2021/07/10/mp4/210710095541348171.mp4");

        //压测一下
        urls.Add("http://vfx.mtime.cn/Video/2019/02/04/mp4/190204084208765161.mp4");    //驯龙高手
        urls.Add("http://vfx.mtime.cn/Video/2019/03/21/mp4/190321153853126488.mp4");    //紧急救援
        urls.Add("http://vfx.mtime.cn/Video/2019/03/19/mp4/190319222227698228.mp4");    //玩具总动员
        urls.Add("http://vfx.mtime.cn/Video/2019/03/19/mp4/190319212559089721.mp4");    //叶问4 先行预告甄子丹过招美
        urls.Add("http://vfx.mtime.cn/Video/2019/03/18/mp4/190318231014076505.mp4");    //预告刘德华对决古天
        urls.Add("http://vfx.mtime.cn/Video/2021/07/10/mp4/210710171112971120.mp4");
        urls.Add("http://vfx.mtime.cn/Video/2021/07/10/mp4/210710122716702150.mp4");
        urls.Add("http://vfx.mtime.cn/Video/2021/07/10/mp4/210710095541348171.mp4");

        urls.Add("http://vfx.mtime.cn/Video/2019/02/04/mp4/190204084208765161.mp4");    //驯龙高手
        urls.Add("http://vfx.mtime.cn/Video/2019/03/21/mp4/190321153853126488.mp4");    //紧急救援
        urls.Add("http://vfx.mtime.cn/Video/2019/03/19/mp4/190319222227698228.mp4");    //玩具总动员
        urls.Add("http://vfx.mtime.cn/Video/2019/03/19/mp4/190319212559089721.mp4");    //叶问4 先行预告甄子丹过招美
        urls.Add("http://vfx.mtime.cn/Video/2019/03/18/mp4/190318231014076505.mp4");    //预告刘德华对决古天
        urls.Add("http://vfx.mtime.cn/Video/2021/07/10/mp4/210710171112971120.mp4");
        urls.Add("http://vfx.mtime.cn/Video/2021/07/10/mp4/210710122716702150.mp4");
        urls.Add("http://vfx.mtime.cn/Video/2021/07/10/mp4/210710095541348171.mp4");

        urls.Add("http://vfx.mtime.cn/Video/2019/02/04/mp4/190204084208765161.mp4");    //驯龙高手
        urls.Add("http://vfx.mtime.cn/Video/2019/03/21/mp4/190321153853126488.mp4");    //紧急救援
        urls.Add("http://vfx.mtime.cn/Video/2019/03/19/mp4/190319222227698228.mp4");    //玩具总动员
        urls.Add("http://vfx.mtime.cn/Video/2019/03/19/mp4/190319212559089721.mp4");    //叶问4 先行预告甄子丹过招美
        urls.Add("http://vfx.mtime.cn/Video/2019/03/18/mp4/190318231014076505.mp4");    //预告刘德华对决古天
        urls.Add("http://vfx.mtime.cn/Video/2021/07/10/mp4/210710171112971120.mp4");
        urls.Add("http://vfx.mtime.cn/Video/2021/07/10/mp4/210710122716702150.mp4");
        urls.Add("http://vfx.mtime.cn/Video/2021/07/10/mp4/210710095541348171.mp4");

        StartCoroutine(LoadVideo(urls));
    }

    private void OnMediaPlayerEvent(MediaPlayer arg0, MediaPlayerEvent.EventType arg1, ErrorCode arg2)
    {
        switch (arg1)
        {
            case MediaPlayerEvent.EventType.Started:    //开始播放的事件
                //videoLoad = true;       //已经加载完成
                //quanImage.Deactivate(); //隐藏
                break;
        }

        switch (arg2)
        {
            case ErrorCode.LoadFailed:
                //videoTip.text = "加载出错,网络连接不稳定, 请稍后重试!!!";
                //videoTip.Activate();     //显示
                //videoLoad = true;       //加载出错
                //quanImage.Deactivate();  //隐藏
                break;
            case ErrorCode.DecodeFailed:
                break;
        }
    }

    /// <summary>
    /// 关闭视频 displayUGUI的点击事件
    /// </summary>
    private void CloseVideo()
    {
        displayUGUI.gameObject.SetActive(false);
        mediaPlayer.Stop();
    }
}

UI
1.创建一个空对象并添加TestAVPro(自己写的脚本)

2.创建Scroll View

3.给Scroll View 的Content添加Grid Layout Group 和 Content Size Fitter组件，按需调整里面参数

4创建MediaPlayer和displayUGUI组件

5.关闭自动播放和自动打开6.需要改名称和脚本中对应(按照自己的来改)

7.一个工具类型,给UI添加点击事件

using UnityEngine;
using UnityEngine.EventSystems;

/// <summary>
/// UI添加点击事件
/// </summary>
public class EventTriggerListener : EventTrigger
{
    public delegate void voidDelegate(GameObject obj);
    public voidDelegate OnBtnDown;
    public voidDelegate OnBtnUp;
    public voidDelegate OnEnter;
    public voidDelegate OnExit;
    public voidDelegate OnStay;
    public voidDelegate OnClick;
    public voidDelegate OnDoubleClick;
    private bool isEnter = false;
    public void Update()
    {
        if (isEnter)
        {
            if (OnStay != null)
            {
                OnStay(gameObject);
            }
        }
    }
    public static EventTriggerListener Get(GameObject obj)
    {
        EventTriggerListener eventTriggerListener = obj.GetComponent<EventTriggerListener>();
        if (eventTriggerListener == null)
        {
            eventTriggerListener = obj.AddComponent<EventTriggerListener>();
        }
        return eventTriggerListener;
    }
    /// <summary>
    /// 判断是否是第二次点击
    /// </summary>
    private bool isTwo = true;
    private bool isOver = true;
    public override void OnPointerDown(PointerEventData eventData)
    {
        if (OnBtnDown != null)
        {
            OnBtnDown(gameObject);
        }
        isTwo = !isTwo;
        if (!isOver)
        {
            return;
        }
        isOver = false;
        Invoke("SelectClick", 0.3f);
    }

    public void SelectClick()
    {
        if (isTwo)
        {
            if (OnDoubleClick != null)
            {
                OnDoubleClick(gameObject);
            }
        }
        else
        {
            if (OnClick != null)
            {
                OnClick(gameObject);
            }
        }
        isTwo = true;
        isOver = true;
    }
    public override void OnPointerUp(PointerEventData eventData)
    {
        if (OnBtnUp != null)
        {
            OnBtnUp(gameObject);
        }
    }
    public override void OnPointerEnter(PointerEventData eventData)
    {
        if (OnEnter != null)
        {
            OnEnter(gameObject);
        }
        isEnter = true;
    }
    public override void OnPointerExit(PointerEventData eventData)
    {
        if (OnExit != null)
        {
            OnExit(gameObject);
        }
        isEnter = false;
    }
}

工程地址
提取码：o93j

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