298 lines
13 KiB
C#
298 lines
13 KiB
C#
using System.Windows.Input;
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using VideoConcat.Models;
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using MessageBox = System.Windows.MessageBox;
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using VideoConcat.Common.Tools;
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using System.IO;
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using Microsoft.Expression.Drawing.Core;
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using FFMpegCore;
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using FFMpegCore.Enums;
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namespace VideoConcat.ViewModels
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{
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public class VideoViewModel
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{
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private VideoModel _videoModel;
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public VideoModel VideoModel
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{
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get { return _videoModel; }
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set
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{
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_videoModel = value;
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}
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}
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public VideoViewModel()
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{
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VideoModel = new VideoModel
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{
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FolderInfos = [],
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ConcatVideos = [],
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MaxNum = 0,
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CanStart = false,
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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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VideoModel.FolderPath = folderBrowserDialog.SelectedPath;
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LogUtils.Info($"获取视频文件夹,视频路径:{VideoModel.FolderPath}");
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ListFolder(VideoModel.FolderPath);
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}
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}
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},
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BtnChooseAuditImageCommand = new Command()
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{
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DoExcue = obj =>
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{
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// 创建一个 OpenFileDialog 实例
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OpenFileDialog openFileDialog = new()
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{
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// 设置文件对话框的标题
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Title = "选择广审图片",
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// 设置文件筛选器，只允许选择文本文件和图像文件
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Filter = "图片文件[*.png;*.jpg;*.jpeg;*.bmp]|*.png;*.jpg;*.jpeg;*.bmp",
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};
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// 显示文件对话框并获取结果
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DialogResult result = openFileDialog.ShowDialog();
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// 检查用户是否点击了打开按钮
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if (result == DialogResult.OK)
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{
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// 获取用户选择的文件路径列表
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VideoModel.AuditImagePath = openFileDialog.FileName;
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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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Task.Run(action: async () =>
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{
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MessageBox.Show("开始合并视频");
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if (Directory.Exists($"{VideoModel.FolderPath}\\output") == false)
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{
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Directory.CreateDirectory($"{VideoModel.FolderPath}\\output");
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}
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VideoModel.IsStart = true;
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//开始时间
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DateTime startTime = DateTime.Now;
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LogUtils.Info("开始合并视频,进行视频拼接组合");
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List<List<string>> combinations = [];
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List<string> currentCombination = [];
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List<List<string>> videoLists = [];
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VideoModel.FolderInfos.ForEach(folderInfo =>
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{
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videoLists.Add(folderInfo.VideoPaths);
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});
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VideoCombine.GenerateCombinations(videoLists, 0, currentCombination, combinations);
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List<List<string>> result = [];
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Random random = new();
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// 复制原列表，避免修改原列表
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List<List<string>> tempList = new(combinations);
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string[] _converVideoPath = [];
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List<string> _clearPath = [];
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for (int i = 0; i < VideoModel.Num && tempList.Count > 0; i++)
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{
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int index = random.Next(tempList.Count);
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result.Add(tempList[index]);
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_converVideoPath = [.. _converVideoPath, .. tempList[index]];
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tempList.RemoveAt(index);
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}
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SemaphoreSlim semaphore = new(10); // Limit to 3 threads
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List<Task> _tasks = [];
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foreach (var _path in _converVideoPath)
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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(() =>
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{
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try
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{
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_clearPath.Add(VideoCombine.ConvertVideos(_path));
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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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await Task.WhenAll(_tasks).ContinueWith((task) =>
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{
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LogUtils.Info($"转换完成，用时{(DateTime.Now - startTime).TotalSeconds}秒");
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});
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LogUtils.Info("开始拼接视频");
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List<Task> taskList = [];
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semaphore = new(10);
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foreach (List<string> combination in result)
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{
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await semaphore.WaitAsync();
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var _task = Task.Run(() =>
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{
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try
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{
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string _outPutName = $"{VideoModel.FolderPath}\\output\\{DateTime.Now:yyyyMMddHHmmss}{random.Next(100000, 999999)}.mp4";
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var temporaryVideoParts = combination.Select(_ => {
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string _tempPath = Path.GetDirectoryName(_) ?? "";
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//GlobalFFOptions.Current.TemporaryFilesFolder
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return Path.Combine(_tempPath, $"{Path.GetFileNameWithoutExtension(_)}{FileExtension.Ts}");
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}).ToArray();
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bool _isSuccess = false;
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try
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{
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_isSuccess= FFMpegArguments
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.FromConcatInput(temporaryVideoParts)
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.OutputToFile(_outPutName, true, options => options
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.CopyChannel()
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.WithBitStreamFilter(Channel.Audio, Filter.Aac_AdtstoAsc))
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.ProcessSynchronously();
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}
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catch (Exception ex)
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{
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_isSuccess = false;
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LogUtils.Error("拼接视频失败", ex);
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}
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//bool _isSuccess = FFMpeg.Join(_outPutName, [.. combination]);
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if (_isSuccess && VideoModel.AuditImagePath != "")
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{
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// 使用 FFMpegCore 执行添加图片到视频的操作
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try
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{
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// 配置 FFmpeg 二进制文件位置（如果 FFmpeg 不在系统路径中）
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// GlobalFFOptions.Configure(new FFOptions { BinaryFolder = "path/to/ffmpeg/bin" });
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string _outPutNameImg = $"{VideoModel.FolderPath}\\output\\{DateTime.Now:yyyyMMddHHmmss}{random.Next(100000, 999999)}.mp4";
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string _customArg = "-filter_complex \"[0:v][1:v] overlay=0:H-h\" ";
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// 使用 FFMpegArguments 构建命令
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bool _isCoverSuccess = FFMpegArguments
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.FromFileInput(_outPutName)
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.AddFileInput(VideoModel.AuditImagePath)
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.OutputToFile(
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_outPutNameImg,
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true,
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options => options.WithCustomArgument(_customArg)
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)
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.ProcessSynchronously();
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LogUtils.Info($"图片已成功添加到视频中，输出文件：{_outPutName}");
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}
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catch (Exception ex)
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{
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LogUtils.Error($"图片添加到视频中失败", ex);
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}
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}
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LogUtils.Info($"当前视频{string.Join("，", combination)}合并成功");
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}
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catch (Exception ex)
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{
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LogUtils.Error($"视频{string.Join("，", combination)}合并失败", ex);
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}
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finally
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{
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semaphore.Release();
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}
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});
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taskList.Add(_task);
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}
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await Task.WhenAll(taskList).ContinueWith((s) =>
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{
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//结束时间
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DateTime endTime = DateTime.Now;
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LogUtils.Info($"所有视频拼接完成，用时{(endTime - startTime).TotalSeconds}秒");
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VideoModel.IsStart = false;
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MessageBox.Show("所有视频拼接完成");
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VideoCombine.Cleanup(_clearPath);
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});
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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(string path)
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{
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DirectoryInfo dir = new(path);
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try
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{
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DirectoryInfo dirD = dir as DirectoryInfo;
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DirectoryInfo[] folders = dirD.GetDirectories();
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VideoModel.FolderInfos.Clear();
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//获取文件夹下所有视频文件
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foreach (DirectoryInfo Folder in folders)
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{
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if (Folder.Name != "output")
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{
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string[] files = Directory.GetFiles(Folder.FullName, "*.mp4");
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LogUtils.Info($"{Folder.Name}下有{files.Length}个视频文件");
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VideoModel.FolderInfos.Add(new VideoModel.FolderInfo { DirectoryInfo = Folder, Num = files.Length, VideoPaths = new List<string>(files) });
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}
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}
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VideoModel.UpdateSum();
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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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class Command : ICommand
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{
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public event EventHandler? CanExecuteChanged;
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public bool CanExecute(object? parameter) => true;
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public void Execute(object? parameter)
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{
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DoExcue?.Invoke(parameter);
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}
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public Action<Object?>? DoExcue { get; set; }
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}
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}
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