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Unity 使用AVProMovieCapture实现Game视图屏幕录制      

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一、导入AVProMovieCapture包

在Asset Store资源商店里面可以下载这个插件：

https://assetstore.unity.com/packages/tools/video/avpro-movie-capture-desktop-edition-221914

目前这个插件比较贵，以下提供了老一点的版本，也是可以用的。
https://download.****.net/download/caiprogram123/89517225

下载之后解压，并把这个包导入到Unity中，可以看到RenderHeads/AVProMovieCapture

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二、屏幕捕捉基本设置

在开始录制Game视图时要对录制做一些基本的设置：

• 输出文件夹类型：输出视频到哪个位置
  

• 输出子文件夹：输出视频位置的子文件夹

• 分辨率：设置视频的分辨率
  

• 帧率：设置视频的帧率

• 视频前缀：设置视频名称的前缀

//视频输出路径
public string videoOutFolder;
//视频输出路径类型
public OutputPath outputFolderType = defaultOutputFolderType;
//视频输出文件夹
public string outputFolderPath = defaultOutputFolderPath;

//视频降分辨率
public CaptureBase.DownScale downScale = CaptureBase.DownScale.Original;
//视频帧率
public float frame = 60;
//视频前缀
public string prefix = "ScreenCapture";

/// <summary>
/// 设置视频输出路径
/// </summary>
private void SetOutFolderPath()
{
    videoOutFolder = GetFolder(outputFolderType, outputFolderPath);

    if (!Directory.Exists(videoOutFolder))
        Directory.CreateDirectory(videoOutFolder);
    _movieCapture.OutputFolderPath = videoOutFolder;
}

/// <summary>
/// 设置视频画质
/// </summary>
private void SetDownScale()
{
    _movieCapture.ResolutionDownScale = downScale;
}

/// <summary>
/// 设置帧率
/// </summary>
private void SetFrameRate()
{
    _movieCapture.FrameRate = frame;

}

/// <summary>
/// 设置文件前缀
/// </summary>
private void SetPrefix()
{
    _movieCapture.FilenamePrefix = prefix;
}

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三、实现Game视图屏幕捕捉功能

1、屏幕捕捉功能

在导入包后就可以进行屏幕录制功能开发，包含开始录频、结束录频、查看最近录制，同时在录制的过程中也能够看到当前当前录制视频的大小和时长。

 private long _lastFileSize;
 private uint _lastEncodedMinutes;
 private uint _lastEncodedSeconds;
 private uint _lastEncodedFrame;

 private StringBuilder _fileSize = new StringBuilder();
 private StringBuilder _videoLength = new StringBuilder();
 
 /// <summary>
 /// 开始录制
 /// </summary>
 private void StartCapture()
 {
     _lastFileSize = 0;
     _lastEncodedMinutes = _lastEncodedSeconds = _lastEncodedFrame = 0;
     if (_movieCapture != null)
     {
         _movieCapture.StartCapture();
         startRecord.interactable = false;
         stopRecord.interactable = true;
     }
 }

 /// <summary>
 /// 停止录制
 /// </summary>
 private void StopCapture()
 {
     if (_movieCapture != null)
     {
         if (_movieCapture.IsCapturing())
         {
             _movieCapture.StopCapture();
             startRecord.interactable = true;
             stopRecord.interactable = false;
         }
     }
 }

 /// <summary>
 /// 文件大小设置
 /// </summary>
 /// <param name="lastFileSize"></param>
 private void FileSize()
 {
     _lastFileSize = _movieCapture.GetCaptureFileSize();

     _fileSize.Clear();
     _fileSize.Append((_lastFileSize / (1024f * 1024f)).ToString("F1"));
     _fileSize.Append("MB");
 }

 /// <summary>
 /// 视频长度设置
 /// </summary>
 private void VideoLength()
 {
     if (!_movieCapture.IsRealTime)
     {
         _lastEncodedSeconds = (uint)Mathf.FloorToInt(_movieCapture.CaptureStats.NumEncodedFrames / _movieCapture.FrameRate);
     }
     else
     {
         _lastEncodedSeconds = _movieCapture.CaptureStats.TotalEncodedSeconds;
     }

     _lastEncodedMinutes = _lastEncodedSeconds / 60;
     _lastEncodedSeconds = _lastEncodedSeconds % 60;
     _lastEncodedFrame = _movieCapture.CaptureStats.NumEncodedFrames % (uint)_movieCapture.FrameRate;

     _videoLength.Clear();

     _videoLength.Append(_lastEncodedMinutes.ToString("00"));
     _videoLength.Append(":");
     _videoLength.Append(_lastEncodedSeconds.ToString("00"));
     _videoLength.Append(".");
     _videoLength.Append(_lastEncodedFrame.ToString("000"));
 }
 

• 开始录制： 开始进行Game视图录制
• 结束录制： 结束录制，录制结束后，视频会进进行保存
• 最新录制： 显示最近录制的视频记录
• File Size： 当前录制视频的文件大小
• Video Length： 当前录制视频的时长

2、视频列表功能

在视频录制完成后，会将视频信息进行保存，当点击最新录制会显示视频列表窗口，在这里你可以找到所有的最近录制的视频记录。

public class RecordList : MonoBehaviour
{
    public RecordItem recordItemPre;
    private List<RecordItem> records = new List<RecordItem>();

    /// <summary>
    /// 初始化记录表
    /// </summary>
    /// <param name="saveInfos"></param>
    public void InitRecordList(List<VideoInfo> videoList)
    {
        gameObject.SetActive(true);

        for (int i = 0; i < records.Count; i++)
        {
            Destroy(records[i].gameObject);
        }

        records.Clear();

        for (int i = 0; i < videoList.Count; i++)
        {
            RecordItem recordItem = Instantiate(recordItemPre, recordItemPre.transform.parent);
            recordItem.InitRecordItem(videoList[i]);
            records.Add(recordItem);
            recordItem.gameObject.SetActive(true);
        }
    }
}

 public class RecordItem : MonoBehaviour
 {
     public Text videoName;
     public Text videoSize;
     public Text videoLength;
     public Text lastModifyTime;
     public Button view;
     public VideoControl videoControl;
     private VideoInfo videoInfo;

     // Start is called before the first frame update
     void Start()
     {
         view.onClick.AddListener(() => {
             videoControl.VideoControlInit(videoInfo.videoPath);
         });
     }

     /// <summary>
     /// 初始化记录表
     /// </summary>
     /// <param name="saveInfo"></param>
     public void InitRecordItem(VideoInfo videoInfo)
     {
         this.videoInfo = videoInfo;
         videoName.text = videoInfo.videoName;
         videoSize.text = (videoInfo.videoSize / (1024f * 1024f)).ToString("F1") + "MB";
         videoLength.text = (videoInfo.videoLength / 60).ToString("00") + ":" + (videoInfo.videoLength % 60).ToString("00");
         lastModifyTime.text = videoInfo.lastModifyTime;
     }
 }

• 名称： 视频名称
• 大小： 视频文件大小
• 时长： 视频时长
• 最后修改： 视频保存时间
• 查看： 播放视频

3、视频播放功能

在视频列表中，点击查看按钮就可以播放该视频。

public class VideoControl : MonoBehaviour
{
    public Text title;
    public VideoPlayer player;
    public Slider videoSlider;
    public Button close;
    public Text videotime;
    public Text videoLength;

    string videoPath;

    private void Update()
    {
        if (player.isPlaying)
        {
            SetCurPlayTime();
            SetPlaySchedule();
        }
    }

    private void Awake()
    {
        player.prepareCompleted += OnPrepareCompleted;
    }

    private void OnDestroy()
    {
        player.prepareCompleted -= OnPrepareCompleted;
    }

    public void VideoControlInit(string videoPath)
    {
        this.videoPath = videoPath;

        gameObject.SetActive(true);
        SetVideoPlayPath(videoPath);
        PlayVideo();
    }

    /// <summary>
    /// 视频准备
    /// </summary>
    /// <param name="videoSource"></param>
    private void OnPrepareCompleted(VideoPlayer videoSource)
    {
        SetVideoName();
        SetVideoLength();
    }

    /// <summary>
    /// 设置视频名称
    /// </summary>
    private void SetVideoName()
    {
        title.text = Path.GetFileNameWithoutExtension(videoPath);
    }

    /// <summary>
    /// 设置播放器路径
    /// </summary>
    /// <param name="path"></param>
    public void SetVideoPlayPath(string path)
    {
        player.url = path;
    }

    /// <summary>
    /// 当前视频播放时间
    /// </summary>
    private void SetCurPlayTime()
    {
        videotime.text = TimeProcess(player.time);
    }

    /// <summary>
    /// 设置视频时长
    /// </summary>
    /// <param name="length"></param>
    private void SetVideoLength()
    {
        videoLength.text = TimeProcess(player.length);
    }

    /// <summary>
    /// 设置播放进度
    /// </summary>
    private void SetPlaySchedule()
    {
        videoSlider.value = (float)player.frame / player.frameCount;
    }

    /// <summary>
    /// 时间处理
    /// </summary>
    /// <param name="time"></param>
    /// <returns></returns>
    private string TimeProcess(double time)
    {
        int minutes = (int)time / 60;
        int seconds = (int)time % 60;
        return minutes.ToString("00") + ":" + seconds.ToString("00");
    }

    /// <summary>
    /// 视频播放
    /// </summary>
    public void PlayVideo()
    {
        player.Play();
    }
}

视频播放时，会显示视频名称、时长、当前时间和播放进度

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四、MovieCapture项目地址

项目完整地址：

https://gitcode.com/CTLittleNewbie/ScreenRecord_240520/

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