126 lines
4.3 KiB
C#
126 lines
4.3 KiB
C#
using FFMpegCore;
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using FFMpegCore.Enums;
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using Microsoft.Expression.Drawing.Core;
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using System.IO;
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using System.Windows;
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using System.Windows.Forms;
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using System.Windows.Input;
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using System.Windows.Threading;
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using VideoConcat.Common.Tools;
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using VideoConcat.Models;
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using VideoConcat.Services.Video;
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using static VideoConcat.Models.VideoModel;
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using MessageBox = System.Windows.MessageBox;
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namespace VideoConcat.ViewModels
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{
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public class ExtractWindowViewModel
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{
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private ExtractWindowModel _extractWindowModel;
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public List<ConcatVideo> ConcatVideos { get; set; } = [];
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public ExtractWindowModel ExtractWindowModel
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{
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get { return _extractWindowModel; }
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set
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{
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_extractWindowModel = value;
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}
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}
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public ExtractWindowViewModel()
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{
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ExtractWindowModel = new ExtractWindowModel
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{
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CanStart = false,
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IsStart = false,
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IsCanOperate = true,
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BtnOpenFolderCommand = new Command()
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{
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DoExcue = obj =>
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{
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FolderBrowserDialog folderBrowserDialog = new();
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if (folderBrowserDialog.ShowDialog() == DialogResult.OK)
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{
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ExtractWindowModel.FolderPath = folderBrowserDialog.SelectedPath;
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LogUtils.Info($"获取视频文件夹,视频路径:{ExtractWindowModel.FolderPath}");
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ListFolder();
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}
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}
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},
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BtnStartVideoConcatCommand = new Command()
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{
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DoExcue = obj =>
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{
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ExtractWindowModel.HelpInfo = "";
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SemaphoreSlim semaphore = new(10); // Limit to 3 threads
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List<Task> _tasks = [];
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ExtractWindowModel.videos.ForEach(async (video) =>
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{
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await semaphore.WaitAsync(); // Wait when more than 3 threads are running
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var _task = Task.Run(async () =>
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{
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try
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{
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// 实例化并调用
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var remover = new VideoProcess();
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// 删除4秒处的帧（需根据实际帧位置调整）
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string _tmpPath = Path.GetDirectoryName(video) ?? "";
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string _tmpFileName = $"{(new Random()).Next(10000,99999)}{Path.GetFileName(video)}";
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string outPath = Path.Combine(_tmpPath, "out");
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if (!Path.Exists(outPath))
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{
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Directory.CreateDirectory(outPath);
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}
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await VideoProcess.RemoveFrameRandomeAsync(video, $"{_tmpPath}\\out\\{_tmpFileName}");
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}
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finally
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{
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semaphore.Release(); // Work is done, signal to semaphore that more work is possible
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}
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});
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_tasks.Add(_task);
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});
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Task.WhenAll(_tasks).ContinueWith((task) =>
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{
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ExtractWindowModel.HelpInfo = "全部完成!";
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});
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}
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}
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};
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}
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private void ListFolder()
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{
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DirectoryInfo dir = new(ExtractWindowModel.FolderPath);
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try
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{
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DirectoryInfo dirD = dir as DirectoryInfo;
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//获取文件夹下所有视频文件
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ExtractWindowModel.videos = Directory.GetFiles(dirD.FullName, "*.mp4");
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ExtractWindowModel.SetCanStart();
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.Message);
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return;
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}
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}
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}
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}
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