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xiangbing 2025-08-13 22:43:32 +08:00
parent da5f023390
commit a28d3cac8e
5 changed files with 117 additions and 17 deletions
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26
Models/ExtractWindowModel.cs
View File

@ -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;
}
}
}

47
Services/Video/VideoProcess.cs
View File

@ -75,14 +75,14 @@ namespace VideoConcat.Services.Video
int totalFram = (int)(totalDuration * frameRate);
var random = new Random();
var randomFrame = random.Next(1, (int)totalDuration);
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, $"{Guid.NewGuid()}.mp4");
bool hasSubVideo1 = SubVideo(inputPath, videoPart1, 0, randomFrame-0.016);
bool hasSubVideo1 = SubVideo(inputPath, videoPart1, 0, randomFrame - 0.016);
bool hasSubVideo2 = SubVideo(inputPath, videoPart2, randomFrame, totalDuration);
if (!hasSubVideo1 || !hasSubVideo2)
{
@ -116,6 +116,27 @@ namespace VideoConcat.Services.Video
}
}
/// <summary>
/// 通过修改视频元数据（添加注释）改变MD5
/// </summary>
public static bool ModifyByMetadata(string inputPath, string outputPath, string comment = "JSY")
{
// 添加或修改视频元数据中的注释信息
return FFMpegArguments
.FromFileInput(inputPath)
.OutputToFile(outputPath, true, options => options
//.WithVideoCodec("copy") // 直接复制视频流，不重新编码
//.WithAudioCodec("copy") // 直接复制音频流
.CopyChannel()
.WithCustomArgument($"-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 FFMpegArguments
@ -138,7 +159,7 @@ namespace VideoConcat.Services.Video
return FFMpeg.Join(outPutPath, videoParts);
}
public async Task<bool> ProcessVideo(string inputPath,string outputPath, string tempDir)
public async Task<bool> ProcessVideo(string inputPath, string outputPath, string tempDir)
{
// 1. 获取视频信息
IMediaAnalysis mediaInfo = await FFProbe.AnalyseAsync(inputPath);
@ -220,5 +241,23 @@ namespace VideoConcat.Services.Video
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();
}
}
}

52
ViewModels/ExtractWindowViewModel.cs
View File

@ -35,7 +35,8 @@ namespace VideoConcat.ViewModels
{
ExtractWindowModel = new ExtractWindowModel
{
CanStart = false,
CanExtractFrame = false,
CanModify = false,
IsStart = false,
IsCanOperate = true,
@ -76,7 +77,7 @@ namespace VideoConcat.ViewModels
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 _tmpFileName = $"{(new Random()).Next(10000, 99999)}{Path.GetFileName(video)}";
string outPath = Path.Combine(_tmpPath, "out");
if (!Path.Exists(outPath))
@ -94,6 +95,53 @@ namespace VideoConcat.ViewModels
_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!";

7
Views/ExtractWindow.xaml
View File

@ -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>

2
Views/MainWindow.xaml
View File

@ -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">