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5 changed files with 55 additions and 296 deletions
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26
Models/ExtractWindowModel.cs
View File

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

202
Services/Video/VideoProcess.cs
View File

@ -1,6 +1,5 @@
using FFMpegCore;
using FFMpegCore.Enums;
using Standard;
using System;
using System.IO;
using System.Threading.Tasks;
@ -22,12 +21,11 @@ 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
IMediaAnalysis mediaInfo = await FFProbe.AnalyseAsync(inputPath);
var mediaInfo = await FFProbe.AnalyseAsync(inputPath);
var videoStream = mediaInfo.PrimaryVideoStream;
if (videoStream == null)
{
@ -37,6 +35,8 @@ 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)
@ -45,59 +45,47 @@ namespace VideoConcat.Services.Video
{
// 临时文件路径
string videoConvert = Path.Combine(tempDir, $"{Guid.NewGuid()}.mp4");
string videoConvert = Path.Combine(tempDir, "convert.mp4");
await FFMpegArguments.FromFileInput(inputPath)
.OutputToFile(videoConvert, true, opt => // 设置输出格式
opt.WithVideoCodec("libx264")
).ProcessAsynchronously();
mediaInfo = await FFProbe.AnalyseAsync(videoConvert);
mediaInfo = await FFProbe.AnalyseAsync(videoConvert);
inputPath = videoConvert;
}
catch (Exception)
{
throw new Exception("转换失败！");
File.Delete(outputPath);
}
}
// 1. 获取视频信息
mediaInfo = await FFProbe.AnalyseAsync(inputPath);
videoStream = mediaInfo.PrimaryVideoStream;
if (videoStream == null)
{
Console.WriteLine("没有找到视频流");
return false;
}
// 视频总时长（秒）
double totalDuration = mediaInfo.Duration.TotalSeconds;
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）
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, (int)totalDuration);
var randomFrame = random.Next(20, totalFram - 10);
//return RemoveVideoFrame(inputPath, outputPath, randomFrame);
double frameTime = (randomFrame - 1) * frameDuration; // 目标帧开始时间
double nextFrameTime = frameTime + frameDuration; // 下一帧开始时间
string videoPart1 = Path.Combine(tempDir, $"{Guid.NewGuid()}.mp4");
string videoPart2 = Path.Combine(tempDir, $"{Guid.NewGuid()}.mp4");
bool hasSubVideo1 = SubVideo(inputPath, videoPart1, 0, randomFrame - 0.016);
bool hasSubVideo2 = SubVideo(inputPath, videoPart2, randomFrame, totalDuration);
if (!hasSubVideo1 || !hasSubVideo2)
// 临时文件路径
string videoPart1 = Path.Combine(tempDir, "video_part1.mp4");
string videoPart2 = Path.Combine(tempDir, "video_part2.mp4");
bool hasSubVideo1 = SubVideo(inputPath, videoPart1, 0, frameTime);
bool hasSubVideo2 = SubVideo(inputPath, videoPart2, nextFrameTime, totalDuration);
if (hasSubVideo1 && hasSubVideo2)
{
return false;
return JoinVideo(outputPath, [videoPart1, videoPart2]);
}
bool isJoinSuccess = JoinVideo(outputPath, [videoPart1, videoPart2]);
if (!isJoinSuccess)
{
return false;
}
return false;
}
catch (Exception ex)
{
@ -105,53 +93,11 @@ namespace VideoConcat.Services.Video
Console.WriteLine($"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 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();
return FFMpeg.SubVideo(inputPath, outputPath, TimeSpan.FromSeconds(startSec), TimeSpan.FromSeconds(endSec));
}
public static bool JoinVideo(string outPutPath, string[] videoParts)
@ -159,105 +105,5 @@ 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();
}
}
}

114
ViewModels/ExtractWindowViewModel.cs
View File

@ -1,16 +1,15 @@
using FFMpegCore;
using FFMpegCore.Enums;
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 System.Windows.Input;
using VideoConcat.Models;
using VideoConcat.Services.Video;
using static VideoConcat.Models.VideoModel;
using MessageBox = System.Windows.MessageBox;
using VideoConcat.Common.Tools;
using System.IO;
using Microsoft.Expression.Drawing.Core;
using FFMpegCore;
using FFMpegCore.Enums;
using static VideoConcat.Models.VideoModel;
using System.Windows.Threading;
using System.Windows;
using VideoConcat.Services.Video;
namespace VideoConcat.ViewModels
{
@ -35,8 +34,7 @@ namespace VideoConcat.ViewModels
{
ExtractWindowModel = new ExtractWindowModel
{
CanExtractFrame = false,
CanModify = false,
CanStart = false,
IsStart = false,
IsCanOperate = true,
@ -60,92 +58,20 @@ namespace VideoConcat.ViewModels
DoExcue = obj =>
{
ExtractWindowModel.HelpInfo = "";
SemaphoreSlim semaphore = new(10); // Limit to 3 threads
List<Task> _tasks = [];
ExtractWindowModel.videos.ForEach(async (video) =>
Task.Run(action: () =>
{
await semaphore.WaitAsync(); // Wait when more than 3 threads are running
var _task = Task.Run(async () =>
ExtractWindowModel.videos.ForEach(async (video) =>
{
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);
}
await VideoProcess.RemoveFrameRandomeAsync(video, $"{_tmpPath}\\out\\{_tmpFileName}");
}
finally
{
semaphore.Release(); // Work is done, signal to semaphore that more work is possible
}
// 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}");
});
_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!";
});
ExtractWindowModel.HelpInfo = "全部完成!";
}
}
};

7
Views/ExtractWindow.xaml
View File

@ -29,10 +29,9 @@
<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="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}"/>
<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}"/>
</WrapPanel>
</Border>

2
Views/MainWindow.xaml
View File

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