update

Services/Video/VideoProcess.cs

@@ -27,7 +27,7 @@ namespace VideoConcat.Services.Video
             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)
                 {
@@ -60,9 +60,97 @@ namespace VideoConcat.Services.Video
                         throw new Exception("转换失败！");
                     }
                 }
+                // 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;
+                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(1, (int)totalDuration);
+
+
+
+
+                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);
+            }
+        }
+
+        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();
+        }
+
+        public static bool JoinVideo(string outPutPath, string[] videoParts)
+        {
+            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）
@@ -73,7 +161,7 @@ namespace VideoConcat.Services.Video
             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 * frameDuration,6); // 下一帧开始时间
+            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, $"{Guid.NewGuid()}.mp4");
@@ -132,43 +220,5 @@ namespace VideoConcat.Services.Video
                      opt.WithCustomArgument("-c copy -shortest -y"))
                  .ProcessAsynchronously();
         }
-            catch (Exception ex)
-            {
-                LogUtils.Error("抽帧失败", ex);
-                Console.WriteLine($"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);
-            }
-        }
-
-        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"))
-                .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)
-        {
-            return FFMpeg.Join(outPutPath, videoParts);
-        }
     }
 }

ViewModels/ExtractWindowViewModel.cs

@@ -76,8 +76,15 @@ 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 = $"抽帧视频-{Path.GetFileName(video)}";
+                                    string _tmpFileName = $"{(new Random()).Next(10000,99999)}{Path.GetFileName(video)}";
-                                   await VideoProcess.RemoveFrameRandomeAsync(video, $"{_tmpPath}\\{_tmpFileName}");
+
+                                    string outPath = Path.Combine(_tmpPath, "out");
+                                    if (!Path.Exists(outPath))
+                                    {
+                                        Directory.CreateDirectory(outPath);
+                                    }
+
+                                    await VideoProcess.RemoveFrameRandomeAsync(video, $"{_tmpPath}\\out\\{_tmpFileName}");
                                 }
                                 finally
                                 {