update

Models/ExtractWindowModel.cs

@@ -26,7 +26,8 @@ namespace VideoConcat.Models
 
         private string _folderPath = "";
         private string _helpInfo = "";
-        private bool _canStart = false;
+        private bool _canExtractFrame = false;
+        private bool _canModify = false;
         private bool _isCanOperate = false;
         private bool _isStart = false;
         private string[] _videos = [];
@@ -102,18 +103,28 @@ namespace VideoConcat.Models
             }
         }
 
-        public bool CanStart
+        public bool CanExtractFrame
         {
-            get { return _canStart; }
+            get { return _canExtractFrame; }
             set
             {
-                _canStart = value;
-                OnPropertyChanged(nameof(CanStart));
+                _canExtractFrame = value;
+                OnPropertyChanged(nameof(CanExtractFrame));
+            }
+        }
+        public bool CanModify
+        {
+            get { return _canModify; }
+            set
+            {
+                _canModify = value;
+                OnPropertyChanged(nameof(CanModify));
             }
         }
 
         public ICommand? BtnOpenFolderCommand { get; set; }
         public ICommand? BtnStartVideoConcatCommand { get; set; }
+        public ICommand? BtnStartVideoModifyCommand { get; set; }
         public ICommand? BtnChooseAuditImageCommand { get; set; }
 
         public event PropertyChangedEventHandler? PropertyChanged;
@@ -132,13 +143,14 @@ namespace VideoConcat.Models
 
         public void SetCanStart()
         {
+            CanExtractFrame = false;
             if (videos.Length > 0)
             {
-                CanStart = true;
+                CanModify = true;
             }
             else
             {
-                CanStart = false;
+                CanModify = false;
             }
         }
     }

Services/Video/VideoProcess.cs

@@ -1,5 +1,6 @@
 using FFMpegCore;
 using FFMpegCore.Enums;
+using Standard;
 using System;
 using System.IO;
 using System.Threading.Tasks;
@@ -21,11 +22,12 @@ namespace VideoConcat.Services.Video
         {
             if (!File.Exists(inputPath))
                 return false;
-
+            // 创建临时目录
+            string tempDir = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
             try
             {
                 // 1. 获取视频信息
-                var mediaInfo = await FFProbe.AnalyseAsync(inputPath);
+                IMediaAnalysis mediaInfo = await FFProbe.AnalyseAsync(inputPath);
                 var videoStream = mediaInfo.PrimaryVideoStream;
                 if (videoStream == null)
                 {
@@ -35,8 +37,6 @@ namespace VideoConcat.Services.Video
 
                 bool isHevc = videoStream.CodecName == "hevc";
 
-                // 2. 创建临时目录
-                string tempDir = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
                 Directory.CreateDirectory(tempDir);
 
                 if (isHevc)
@@ -45,7 +45,7 @@ namespace VideoConcat.Services.Video
                     {
 
                         // 临时文件路径
-                        string videoConvert = Path.Combine(tempDir, "convert.mp4");
+                        string videoConvert = Path.Combine(tempDir, $"{Guid.NewGuid()}.mp4");
 
                         await FFMpegArguments.FromFileInput(inputPath)
                             .OutputToFile(videoConvert, true, opt => // 设置输出格式
@@ -57,47 +57,101 @@ namespace VideoConcat.Services.Video
                     }
                     catch (Exception)
                     {
-                        File.Delete(outputPath);
+                        throw new Exception("转换失败！");
                     }
                 }
-
-                // 视频总时长（秒）
-                var totalDuration = mediaInfo.Duration.TotalSeconds;
-                // 计算帧时间参数
-                double frameRate = videoStream.FrameRate;
-                double frameDuration = 1.0 / frameRate; // 一帧时长（秒）
-
-                int totalFram = (int)(totalDuration * frameRate);
-                // 2. 随机生成要删除的帧的时间点（避开最后一帧，防止越界）
-                var random = new Random();
-                var randomFrame = random.Next(20, totalFram - 10);
-
-                double frameTime = (randomFrame - 1) * frameDuration; // 目标帧开始时间
-                double nextFrameTime = frameTime + frameDuration; // 下一帧开始时间
-
-
-                // 临时文件路径
-                string videoPart1 = Path.Combine(tempDir, "video_part1.mp4");
-                string videoPart2 = Path.Combine(tempDir, "video_part2.mp4");
-                bool hasSubVideo1 = SubVideo(inputPath, videoPart1, 0, frameTime);
-                bool hasSubVideo2 = SubVideo(inputPath, videoPart2, nextFrameTime, totalDuration);
-                if (hasSubVideo1 && hasSubVideo2)
+                // 1. 获取视频信息
+                mediaInfo = await FFProbe.AnalyseAsync(inputPath);
+                videoStream = mediaInfo.PrimaryVideoStream;
+                if (videoStream == null)
                 {
-                    return JoinVideo(outputPath, [videoPart1, videoPart2]);
-                }
+                    Console.WriteLine("没有找到视频流");
                     return false;
                 }
+                // 视频总时长（秒）
+                double totalDuration = mediaInfo.Duration.TotalSeconds;
+                double frameRate = videoStream.FrameRate;
+                double frameDuration = Math.Round(1.0 / frameRate, 6); // 一帧时长（秒）
+                int totalFram = (int)(totalDuration * frameRate);
+
+                var random = new Random();
+                var randomFrame = random.Next(20, (int)totalDuration);
+
+                //return RemoveVideoFrame(inputPath, outputPath, randomFrame);
+
+
+                string videoPart1 = Path.Combine(tempDir, $"{Guid.NewGuid()}.mp4");
+                string videoPart2 = Path.Combine(tempDir, $"{Guid.NewGuid()}.mp4");
+                bool hasSubVideo1 = SubVideo(inputPath, videoPart1, 0, randomFrame - 0.016);
+                bool hasSubVideo2 = SubVideo(inputPath, videoPart2, randomFrame, totalDuration);
+                if (!hasSubVideo1 || !hasSubVideo2)
+                {
+                    return false;
+                }
+
+
+                bool isJoinSuccess = JoinVideo(outputPath, [videoPart1, videoPart2]);
+                if (!isJoinSuccess)
+                {
+                    return false;
+                }
+
+                return false;
+
+            }
             catch (Exception ex)
             {
                 LogUtils.Error("抽帧失败", ex);
                 Console.WriteLine($"操作失败: {ex.Message}");
                 return false;
             }
+            finally
+            {
+                string[] files = Directory.GetFiles(tempDir);
+                foreach (string file in files)
+                {
+                    File.Delete(file);
                 }
+                File.Delete(tempDir);
+            }
+        }
+
+
+
+
+        /// <summary>
+        /// 通过修改视频元数据（添加注释）改变MD5
+        /// </summary>
+        public static bool ModifyByMetadata(string inputPath, string outputPath, string comment = "JSY")
+        {
+            // 添加或修改视频元数据中的注释信息
+            return FFMpegArguments
+                   .FromFileInput(inputPath)
+                   .OutputToFile(outputPath, true, options => options
+                       //.WithVideoCodec("copy")  // 直接复制视频流，不重新编码
+                       //.WithAudioCodec("copy")  // 直接复制音频流
+                       .CopyChannel()
+                       .WithCustomArgument($"-metadata comment=\"{comment}_{Guid.NewGuid()}\"")  // 添加唯一注释
+                   )
+                   .ProcessSynchronously();
+        }
+
 
         public static bool SubVideo(string inputPath, string outputPath, Double startSec, Double endSec)
         {
-            return FFMpeg.SubVideo(inputPath, outputPath, TimeSpan.FromSeconds(startSec), TimeSpan.FromSeconds(endSec));
+            return FFMpegArguments
+                .FromFileInput(inputPath, true, options => options.Seek(TimeSpan.FromSeconds(startSec)).EndSeek(TimeSpan.FromSeconds(endSec)))
+                .OutputToFile(outputPath, true, options => options.CopyChannel()) //.WithCustomArgument("-an") 去掉音频
+                .ProcessSynchronously();
+        }
+
+
+        public static bool SubAudio(string inputPath, string outputPath, Double startSec, Double endSec)
+        {
+            return FFMpegArguments
+                .FromFileInput(inputPath, true, options => options.Seek(TimeSpan.FromSeconds(startSec)).EndSeek(TimeSpan.FromSeconds(endSec)))
+                .OutputToFile(outputPath, true, options => options.CopyChannel())
+                .ProcessSynchronously();
         }
 
         public static bool JoinVideo(string outPutPath, string[] videoParts)
@@ -105,5 +159,105 @@ namespace VideoConcat.Services.Video
             return FFMpeg.Join(outPutPath, videoParts);
         }
 
+        public async Task<bool> ProcessVideo(string inputPath, string outputPath, string tempDir)
+        {
+            // 1. 获取视频信息
+            IMediaAnalysis mediaInfo = await FFProbe.AnalyseAsync(inputPath);
+            var videoStream = mediaInfo.PrimaryVideoStream;
+            if (videoStream == null)
+            {
+                Console.WriteLine("没有找到视频流");
+                return false;
+            }
+            // 视频总时长（秒）
+            var totalDuration = mediaInfo.Duration.TotalSeconds;
+
+            // 计算帧时间参数
+            double frameRate = videoStream.FrameRate;
+            double frameDuration = Math.Round(1.0 / frameRate, 6); // 一帧时长（秒）
+
+            int totalFram = (int)(totalDuration * frameRate);
+            // 2. 随机生成要删除的帧的时间点（避开最后一帧，防止越界）
+            var random = new Random();
+            var randomFrame = random.Next(20, totalFram - 10);
+
+            double frameTime = Math.Round((randomFrame - 1) * frameDuration, 6); // 目标帧开始时间
+            double nextFrameTime = Math.Round((randomFrame + 1) * frameDuration, 6); // 下一帧开始时间
+                                                                                     // 临时文件路径
+            string videoPart1 = Path.Combine(tempDir, $"{Guid.NewGuid()}.mp4");
+            string videoPart2 = Path.Combine(tempDir, $"{Guid.NewGuid()}.mp4");
+            string audioPath = Path.Combine(tempDir, $"{Guid.NewGuid()}.aac");
+            string videoNoaudioPath = Path.Combine(tempDir, $"{Guid.NewGuid()}.mp4");
+            string finalyPath = Path.Combine(tempDir, $"{Guid.NewGuid()}.mp4");
+
+            string audioPart1 = Path.Combine(tempDir, $"{Guid.NewGuid()}.aac");
+            string audioPart2 = Path.Combine(tempDir, $"{Guid.NewGuid()}.aac");
+
+
+            // 分离视频流（不含音频）
+            await FFMpegArguments
+                .FromFileInput(inputPath)
+                        .OutputToFile(videoNoaudioPath, true, opt => opt.WithCustomArgument("-an -c:v copy"))
+                        .ProcessAsynchronously();
+
+            if (!File.Exists(videoNoaudioPath))
+                return false;
+
+            // 分离音频流（不含视频）（如有音频）
+            if (mediaInfo.PrimaryAudioStream != null)
+            {
+                await FFMpegArguments
+                    .FromFileInput(inputPath)
+                    .OutputToFile(audioPath, true, opt => opt.WithCustomArgument("-vn -c:a copy"))
+                    .ProcessAsynchronously();
+
+                if (!File.Exists(audioPath))
+                    return false;
+            }
+
+
+            inputPath = videoNoaudioPath;
+
+
+
+
+            bool hasSubVideo1 = SubVideo(inputPath, videoPart1, 0, frameTime);
+            bool hasSubVideo2 = SubVideo(inputPath, videoPart2, nextFrameTime, totalDuration);
+            if (!hasSubVideo1 || !hasSubVideo2)
+            {
+                return false;
+            }
+
+
+            bool isJoinSuccess = JoinVideo(finalyPath, [videoPart1, videoPart2]);
+            if (!isJoinSuccess)
+            {
+                return false;
+            }
+
+            return await FFMpegArguments.FromFileInput(finalyPath)
+                 .AddFileInput(audioPath)
+                 .OutputToFile(outputPath, true, opt =>
+                     opt.WithCustomArgument("-c copy -shortest -y"))
+                 .ProcessAsynchronously();
+        }
+
+
+        public static bool RemoveVideoFrame(string inputPath, string outputPath, int frameToRemove)
+        {
+            // 使用FFMpegArguments构建转换流程
+            return FFMpegArguments
+                 .FromFileInput(inputPath)
+                 .OutputToFile(outputPath, true, options => options
+                     // 使用select过滤器排除指定帧（帧序号从0开始）
+                     .WithCustomArgument($"select=not(eq(n\\,{frameToRemove}))")
+
+                // $"not(eq(n\\,{frameToRemove}))");   // 注意：在C#中需要转义反斜杠
+                //// 保持其他编码参数
+                .WithVideoCodec("libx264")
+                .WithAudioCodec("copy") // 如果不需要处理音频，直接复制
+                )
+                .ProcessSynchronously();
+        }
     }
 }

ViewModels/ExtractWindowViewModel.cs

@@ -1,15 +1,16 @@
-using System.Windows.Input;
-using VideoConcat.Models;
-using MessageBox = System.Windows.MessageBox;
-using VideoConcat.Common.Tools;
-using System.IO;
-using Microsoft.Expression.Drawing.Core;
-using FFMpegCore;
+using FFMpegCore;
 using FFMpegCore.Enums;
-using static VideoConcat.Models.VideoModel;
-using System.Windows.Threading;
+using Microsoft.Expression.Drawing.Core;
+using System.IO;
 using System.Windows;
+using System.Windows.Forms;
+using System.Windows.Input;
+using System.Windows.Threading;
+using VideoConcat.Common.Tools;
+using VideoConcat.Models;
 using VideoConcat.Services.Video;
+using static VideoConcat.Models.VideoModel;
+using MessageBox = System.Windows.MessageBox;
 
 namespace VideoConcat.ViewModels
 {
@@ -34,7 +35,8 @@ namespace VideoConcat.ViewModels
         {
             ExtractWindowModel = new ExtractWindowModel
             {
-                CanStart = false,
+                CanExtractFrame = false,
+                CanModify = false,
                 IsStart = false,
                 IsCanOperate = true,
 
@@ -58,20 +60,92 @@ namespace VideoConcat.ViewModels
                     DoExcue = obj =>
                     {
                         ExtractWindowModel.HelpInfo = "";
-                        Task.Run(action: () =>
-                        {
+
+
+                        SemaphoreSlim semaphore = new(10); // Limit to 3 threads
+
+                        List<Task> _tasks = [];
+
                         ExtractWindowModel.videos.ForEach(async (video) =>
+                        {
+                            await semaphore.WaitAsync(); // Wait when more than 3 threads are running
+                            var _task = Task.Run(async () =>
+                            {
+                                try
                                 {
                                     // 实例化并调用
                                     var remover = new VideoProcess();
                                     // 删除4秒处的帧（需根据实际帧位置调整）
                                     string _tmpPath = Path.GetDirectoryName(video) ?? "";
-                                string _tmpFileName = $"抽帧视频-{Path.GetFileName(video)}";
-                                await VideoProcess.RemoveFrameRandomeAsync(video, $"{_tmpPath}\\{_tmpFileName}");
+                                    string _tmpFileName = $"{(new Random()).Next(10000, 99999)}{Path.GetFileName(video)}";
+
+                                    string outPath = Path.Combine(_tmpPath, "out");
+                                    if (!Path.Exists(outPath))
+                                    {
+                                        Directory.CreateDirectory(outPath);
+                                    }
+
+                                    await VideoProcess.RemoveFrameRandomeAsync(video, $"{_tmpPath}\\out\\{_tmpFileName}");
+                                }
+                                finally
+                                {
+                                    semaphore.Release(); // Work is done, signal to semaphore that more work is possible
+                                }
                             });
+                            _tasks.Add(_task);
                         });
 
+                        Task.WhenAll(_tasks).ContinueWith((task) =>
+                        {
                             ExtractWindowModel.HelpInfo = "全部完成!";
+                        });
+                    }
+                },
+
+                BtnStartVideoModifyCommand = new Command()
+                {
+                    DoExcue = obj =>
+                    {
+                        ExtractWindowModel.HelpInfo = "";
+
+
+                        SemaphoreSlim semaphore = new(10); // Limit to 3 threads
+
+                        List<Task> _tasks = [];
+
+                        ExtractWindowModel.videos.ForEach(async (video) =>
+                        {
+                            await semaphore.WaitAsync(); // Wait when more than 3 threads are running
+                            var _task = Task.Run(async () =>
+                            {
+                                try
+                                {
+                                    // 实例化并调用
+                                    var remover = new VideoProcess();
+                                    // 删除4秒处的帧（需根据实际帧位置调整）
+                                    string _tmpPath = Path.GetDirectoryName(video) ?? "";
+                                    string _tmpFileName = $"{(new Random()).Next(10000, 99999)}{Path.GetFileName(video)}";
+
+                                    string outPath = Path.Combine(_tmpPath, "out");
+                                    if (!Path.Exists(outPath))
+                                    {
+                                        Directory.CreateDirectory(outPath);
+                                    }
+
+                                    VideoProcess.ModifyByMetadata(video, $"{_tmpPath}\\out\\modify{_tmpFileName}");
+                                }
+                                finally
+                                {
+                                    semaphore.Release(); // Work is done, signal to semaphore that more work is possible
+                                }
+                            });
+                            _tasks.Add(_task);
+                        });
+
+                        Task.WhenAll(_tasks).ContinueWith((task) =>
+                        {
+                            ExtractWindowModel.HelpInfo = "全部完成!";
+                        });
                     }
                 }
             };

Views/ExtractWindow.xaml

@@ -29,9 +29,10 @@
             <Border>
                 <WrapPanel>
                     <Label VerticalAlignment="Center" Width="100" FontSize="16" Margin="5,2" BorderBrush="#7F7F7F" BorderThickness="2" Style="{StaticResource MaterialDesignLabel}" VerticalContentAlignment="Stretch">视频文件夹：</Label>
-                    <TextBox Grid.Column="1" Width="650" Name="FoldPath"  Text="{Binding ExtractWindowModel.FolderPath,Mode=TwoWay}" IsReadOnly="True" Margin="5,2" BorderBrush="#7F7F7F" BorderThickness="2"  FontSize="16" VerticalContentAlignment="Center" materialDesign:HintAssist.Hint="选择包含需要处理的视频文件夹"/>
-                    <Button  Grid.Column="2"  Width="100" Content="选择" FontSize="16"   Command="{Binding ExtractWindowModel.BtnOpenFolderCommand}" Background="#40568D" BorderBrush="#7F7F7F" BorderThickness="2" ToolTip="选择含有视频的主文件夹" Style="{StaticResource MaterialDesignRaisedButton}"  Margin="5,2" IsEnabled="{Binding ExtractWindowModel.IsCanOperate}"/>
-                    <Button  Grid.Column="3"  Width="100" Content="处理" FontSize="16"   Command="{Binding ExtractWindowModel.BtnStartVideoConcatCommand}" Background="#3B94FE" BorderBrush="#7F7F7F" BorderThickness="2" ToolTip="开始处理视频" Style="{StaticResource MaterialDesignRaisedButton}"  Margin="5,2,0,2" IsEnabled="{Binding ExtractWindowModel.CanStart}"/>
+                    <TextBox Grid.Column="1" Width="600" Name="FoldPath"  Text="{Binding ExtractWindowModel.FolderPath,Mode=TwoWay}" IsReadOnly="True" Margin="5,2" BorderBrush="#7F7F7F" BorderThickness="2"  FontSize="16" VerticalContentAlignment="Center" materialDesign:HintAssist.Hint="选择包含需要处理的视频文件夹"/>
+                    <Button  Grid.Column="2"  Width="80" Content="选择" FontSize="16"   Command="{Binding ExtractWindowModel.BtnOpenFolderCommand}" Background="#40568D" BorderBrush="#7F7F7F" BorderThickness="2" ToolTip="选择含有视频的主文件夹" Style="{StaticResource MaterialDesignRaisedButton}"  Margin="5,2" IsEnabled="{Binding ExtractWindowModel.IsCanOperate}"/>
+                    <Button  Grid.Column="3"  Width="80" Content="抽帧" FontSize="16"   Command="{Binding ExtractWindowModel.BtnStartVideoConcatCommand}" Background="#3B94FE" BorderBrush="#7F7F7F" BorderThickness="2" ToolTip="开始处理视频" Style="{StaticResource MaterialDesignRaisedButton}"  Margin="5,2,0,2" IsEnabled="{Binding ExtractWindowModel.CanExtractFrame}"/>
+                    <Button  Grid.Column="4"  Width="80" Content="修改" FontSize="16"   Command="{Binding ExtractWindowModel.BtnStartVideoConcatCommand}" Background="#3B94FE" BorderBrush="#7F7F7F" BorderThickness="2" ToolTip="开始处理视频" Style="{StaticResource MaterialDesignRaisedButton}"  Margin="5,2,0,2" IsEnabled="{Binding ExtractWindowModel.CanModify}"/>
                 </WrapPanel>
             </Border>
 

Views/MainWindow.xaml

@@ -11,7 +11,7 @@
 
       mc:Ignorable="d" 
       Width="1100" Height="800" WindowStartupLocation="CenterScreen"
-      ResizeMode="NoResize"
+      ResizeMode="CanMinimize"
       Title="工具">
     <Window.Resources>
         <Style x:Key="BottomButton" TargetType="Button">