Lovely/ViewModels/RecordViewModel.cs

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using Lovely.Common;
using OpenCvSharp;
using Prism.Mvvm;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.Linq;
using System.Resources;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using OpenCvSharp.Extensions;
using Point = System.Drawing.Point;
using OcvSize = OpenCvSharp.Size;
using System.Windows;
using System.IO;
using System.IO.Packaging;
using Prism.Commands;
using Lovely.Common.Events;
using static System.Windows.Forms.VisualStyles.VisualStyleElement.StartPanel;
using XiaFControl.Controls;
using Prism.Events;

namespace Lovely.ViewModels
{
    public class RecordViewModel : BindableBase
    {
        /// <summary>
        /// 总帧数
        /// </summary>
        private int _totalFrames = 0;
        /// <summary>
        /// 声明一个 Rectangle 对象，用来指定矩形的位置和大小
        /// </summary>
        private readonly Rectangle _bounds = Screen.PrimaryScreen.Bounds;
        /// <summary>
        /// 获取屏幕 任务
        /// </summary>
        private TimedIntervalTask _timedIntervalTaskGetScreenImg;
        /// <summary>
        /// 视频写入 任务
        /// </summary>
        private TimedIntervalTask _timedIntervalTaskVideoWriter;
        /// <summary>
        /// 录屏时长 任务
        /// </summary>
        private TimedIntervalTask _timedIntervalTaskScreenMins;
        /// <summary>
        /// 用来存放 桌面屏幕图片的线程安全队列
        /// </summary>
        private readonly ConcurrentQueue<Bitmap> _screenImgByteArray = new ConcurrentQueue<Bitmap>();
        /// <summary>
        /// 视频写入中锁对象
        /// </summary>
        private readonly object _videoWriteingLock = new object();
        /// <summary>
        /// 声明一个 VideoWriter 对象，用来写入视频文件
        /// </summary>