202508130945

更換播放器 使用VLC
加入dbChange,situation
調整全部靜音寫法

CommandHandler.cs

@@ -235,18 +235,13 @@ namespace DualScreenDemo
             {
                 if (VideoPlayerForm.Instance.isMuted)
                 {
-                    
+                    VideoPlayerForm.Instance.Mute(false);
-                    VideoPlayerForm.Instance.SetVolume(VideoPlayerForm.Instance.previousVolume);
-                    
                     VideoPlayerForm.Instance.isMuted = false;
                     OverlayForm.MainForm.Invoke(new System.Action(() => OverlayForm.MainForm.HideMuteLabel())); 
                 }
                 else
                 {
-                    
+                    VideoPlayerForm.Instance.Mute(true);
-                    VideoPlayerForm.Instance.previousVolume = VideoPlayerForm.Instance.GetVolume();
-                    VideoPlayerForm.Instance.SetVolume(-10000);
-                    
                     VideoPlayerForm.Instance.isMuted = true;
                     OverlayForm.MainForm.Invoke(new System.Action(() => OverlayForm.MainForm.ShowMuteLabel())); 
                 }

DBObj/SQLManager.cs

@@ -120,7 +120,9 @@ namespace DBObj
                 db.Field<string>("artistA_simplified") ?? "",
                 db.Field<string>("artistB_simplified") ?? "",
                 db.Field<string>("song_simplified")?? "",
-                db.Field<int>("vocal") 
+                db.Field<int>("vocal"),
+                db.Field<int>("db_change"),
+                db.Field<string>("situation")
             );
         }
 

DBObj/Song.cs

@@ -8,20 +8,27 @@ namespace DBObj
         private string Name_Simplified; 
         private string FileName;
         private int HumanVoice;
-        
+        private int DbChange;
-        
+        private string Situation;
-        public Song(string num,string name,string name_s,string filename,int humanVoice) {
+
-            Number=num;
+
-            Name=name;
+        public Song(string num, string name, string name_s, string filename, int humanVoice, int dbChange, string situation)
-            Name_Simplified=name_s;
+        {
-            FileName=filename;
+            Number = num;
-            HumanVoice =humanVoice;
+            Name = name;
+            Name_Simplified = name_s;
+            FileName = filename;
+            HumanVoice = humanVoice;
+            DbChange = dbChange;
+            Situation = situation;
         }
         public string getNumber() => Number;
         public string getName(bool IsSimplified) => IsSimplified ? Name_Simplified : Name;
         public string getName() =>Name;
         public string getFileName() => FileName;
         public int getHumanVoice() => HumanVoice;
-        public string setNameTest(string s) => Name = Name+s;
+        public int getDbChange() => DbChange;
+        public string getSituation() => Situation;
+        public string setNameTest(string s) => Name = Name + s;
     }
 }

DBObj/SongData.cs

@@ -14,12 +14,12 @@ namespace DBObj
         public PlayState state;
         public SongData(string songNumber, string song, string filename, int humanVoice, bool isPublic)
         {
-            basic=new(songNumber,song,"",filename,humanVoice);
+            basic=new(songNumber,song,"",filename,humanVoice,0,"");
             isPublicSong = isPublic;
         }
-        public SongData(string songNumber, string song, string artistA, string artistB, string filename, string artistASimplified, string artistBSimplified, string songSimplified, int humanVoice)
+        public SongData(string songNumber, string song, string artistA, string artistB, string filename, string artistASimplified, string artistBSimplified, string songSimplified, int humanVoice,int dbChange,string situation)
         {
-            basic=new(songNumber,song,songSimplified,filename,humanVoice);
+            basic=new(songNumber,song,songSimplified,filename,humanVoice,dbChange,situation);
             A = new Artist(artistA, artistASimplified);
             B = !artistB.Equals("") ? new Artist(artistB, artistBSimplified) : null;
             isPublicSong = false;

HttpServer.cs

@@ -482,7 +482,7 @@ namespace DualScreenDemo
                             if (PrimaryForm.Instance.videoPlayerForm.isMuted)
                             {
                                 // 取消静音，恢复之前的音量
-                                PrimaryForm.Instance.videoPlayerForm.SetVolume(PrimaryForm.Instance.videoPlayerForm.previousVolume);
+                                PrimaryForm.Instance.videoPlayerForm.Mute(false);
                                 // muteButton.Text = "Mute";
                                 PrimaryForm.Instance.videoPlayerForm.isMuted = false;
                                 OverlayForm.MainForm.HideMuteLabel();
@@ -490,8 +490,7 @@ namespace DualScreenDemo
                             else
                             {
                                 // 静音，将音量设置为-10000
-                                PrimaryForm.Instance.videoPlayerForm.previousVolume = PrimaryForm.Instance.videoPlayerForm.GetVolume();
+                                PrimaryForm.Instance.videoPlayerForm.Mute(true);
-                                PrimaryForm.Instance.videoPlayerForm.SetVolume(-10000);
                                 // muteButton.Text = "Unmute";
                                 PrimaryForm.Instance.videoPlayerForm.isMuted = true;
                                 OverlayForm.MainForm.ShowMuteLabel();

PrimaryFormParts/PrimaryForm.SQLSearch.cs

@@ -46,7 +46,9 @@ namespace DualScreenDemo{
                                 reader["artistA_simplified"].ToString(),
                                 reader["artistB_simplified"].ToString(),
                                 reader["song_simplified"].ToString(),
-                                Convert.ToInt32(reader["vocal"])
+                                Convert.ToInt32(reader["vocal"]),
+                                Convert.ToInt32(reader["db_change"]),
+                                reader["situation"].ToString()
                             ));
                         }
                     }

PrimaryFormParts/PrimaryForm.SyncScreen.cs

@@ -5,6 +5,7 @@ namespace DualScreenDemo
     public partial class PrimaryForm : Form
     {
         public Panel primaryScreenPanel;
+        public Panel videoPanel;
         public Button syncServiceBellButton;
         public Button syncCutSongButton;
         public Button syncReplayButton;
@@ -21,6 +22,7 @@ namespace DualScreenDemo
         private void InitializeSyncScreen()
         {
             this.primaryScreenPanel = new System.Windows.Forms.Panel();
+            this.videoPanel = new System.Windows.Forms.Panel();
             this.syncServiceBellButton = new System.Windows.Forms.Button();
             this.syncCutSongButton = new System.Windows.Forms.Button();
             this.syncReplayButton = new System.Windows.Forms.Button();
@@ -37,9 +39,13 @@ namespace DualScreenDemo
 
             ResizeAndPositionControl(this.primaryScreenPanel, 0, 0, 1440, 900);
             this.primaryScreenPanel.TabIndex = 0;
-            this.primaryScreenPanel.BorderStyle = BorderStyle.FixedSingle;
+            this.primaryScreenPanel.BorderStyle = BorderStyle.None;
             this.primaryScreenPanel.BackColor = System.Drawing.Color.Black; 
-            
+
+            ResizeAndPositionControl(this.videoPanel, 0, 0, 1200, 900);
+            this.videoPanel.TabIndex = 0;
+            this.videoPanel.BorderStyle = BorderStyle.None;
+            this.videoPanel.BackColor = System.Drawing.Color.Black; 
             var data=LoadConfigData();
 
             // 同步畫面 服務鈴
@@ -125,6 +131,7 @@ namespace DualScreenDemo
             
             this.ClientSize = new System.Drawing.Size(1440, 900); 
             this.Controls.Add(this.primaryScreenPanel);
+            this.primaryScreenPanel.Controls.Add(this.videoPanel);
             this.Controls.Add(this.syncCloseButton);
             this.Name = "PrimaryForm";
             this.ResumeLayout(false);

PrimaryFormParts/PrimaryForm.cs

@@ -1894,21 +1894,15 @@ namespace DualScreenDemo
         #region 主畫面按鍵點擊事件
         private void MuteUnmuteButton_Click(object sender, EventArgs e)
         {
-
             if (videoPlayerForm.isMuted)
             {
-
+                videoPlayerForm.Mute(false);
-                videoPlayerForm.SetVolume(videoPlayerForm.previousVolume);
-
                 videoPlayerForm.isMuted = false;
                 OverlayForm.MainForm.HideMuteLabel();
             }
             else
             {
-
+                videoPlayerForm.Mute(true);
-                videoPlayerForm.previousVolume = videoPlayerForm.GetVolume();
-                videoPlayerForm.SetVolume(-10000);
-
                 videoPlayerForm.isMuted = true;
                 OverlayForm.MainForm.ShowMuteLabel();
             }

Program.cs

@@ -13,7 +13,7 @@ namespace DualScreenDemo
         private static PrimaryForm primaryForm; // 儲存實例的參考
         public static Room room = new Room();
 
-        public static string verSion = "Server V2.8 202508120940";
+        public static string verSion = "Server V2.8 202508130945";
 
         [STAThread]
         static void Main()

Services/MediaService.cs

@@ -1,234 +1,201 @@
-using DirectShowLib;
+using LibVLCSharp.Shared;
-using System;
-using System.Runtime.InteropServices;
 
 namespace DualScreenDemo.Services
 {
-    public class MediaService : Video
+    public class MediaService : IDisposable
     {
-        public IGraphBuilder graphBuilder;
+        private readonly LibVLC _libVLC;
-        private IMediaControl mediaControl;
+        private readonly MediaPlayer _mediaPlayerPrimary;
-        public IBaseFilter renderer;
+        private readonly MediaPlayer _mediaPlayerSecondary;
-        //private IBaseFilter audioRenderer;
+        private Media? _media;
-        private IBaseFilter lavSplitter;
+        private Media? _mediaNoAudio;
-        private IVideoWindow videoWindow;
+        private bool _disposed;
-        public int Run() => (mediaControl != null) ? mediaControl.Run() : 0;
-        public int Stop() => (mediaControl != null) ? mediaControl.Stop() : 0;
-        public int Pause() => (mediaControl != null) ? mediaControl.Pause() : 0;
 
-        public void VideoPlayerForm_FormClosing()
+        public MediaService()
         {
-            if (videoWindow != null)
+            Core.Initialize();
-            {
+            _libVLC = new LibVLC(
-                videoWindow.put_Visible(OABool.False);
+                "--aout=directsound",
-                videoWindow.put_Owner(IntPtr.Zero);
+                //"--avcodec-hw=dxva2",
-                Marshal.ReleaseComObject(videoWindow);
+                "--network-caching=300",
-                videoWindow = null;
+                "--file-caching=300",
-            }
+                "--audio-time-stretch"
+            );
+
+            _mediaPlayerPrimary = new MediaPlayer(_libVLC);
+            _mediaPlayerSecondary = new MediaPlayer(_libVLC);
         }
+
+        #region Player Setup
+        public void SetVideoFormPrimary(nint handle, int width, int height)
+        {
+            _mediaPlayerPrimary.Hwnd = handle;
+            _mediaPlayerPrimary.AspectRatio = $"{width}:{height}";
+            _mediaPlayerPrimary.Scale = 0; // 保持原比例
+        }
+
+        public void SetVideoFormSecondary(nint handle, int width, int height)
+        {
+            _mediaPlayerSecondary.Hwnd = handle;
+            _mediaPlayerSecondary.AspectRatio = $"{width}:{height}";
+            _mediaPlayerSecondary.Scale = 0;
+        }
+        #endregion
+
+        #region Playback
+        public MediaPlayer PrimaryPlayer => _mediaPlayerPrimary;
+        public MediaPlayer SecondaryPlayer => _mediaPlayerSecondary;
+        public bool IsPlaying => _mediaPlayerSecondary.IsPlaying;
+
         public bool IsAtEnd()
         {
-            bool isAtEnd = false;
+            var duration = _mediaPlayerSecondary.Media?.Duration ?? 0;
-            if (mediaControl == null) { return false; }
+            var time = _mediaPlayerSecondary.Time;
-            IMediaSeeking mediaSeeking = graphBuilder as IMediaSeeking;
+            return duration > 0 && Math.Abs(duration - time) < 1000;
-            if (mediaSeeking != null)
-            {
-                long currentPosition;
-                long duration;
-                if (mediaSeeking.GetCurrentPosition(out currentPosition) >= 0 &&
-                    mediaSeeking.GetDuration(out duration) >= 0)
-                {
-                    double currentSeconds = currentPosition / 10000000.0;
-                    double durationSeconds = duration / 10000000.0;
-
-                    // 添加更严格的结束条件判断
-                    isAtEnd = durationSeconds > 0 && currentSeconds > 0 &&
-                                 Math.Abs(currentSeconds - durationSeconds) < 0.1; // 确保真的到了结尾
-                    //Console.WriteLine($"檢測到歌曲 - 當前位置: {currentSeconds:F2}秒, 總時長: {durationSeconds:F2}秒");
-                    if (isAtEnd)
-                    {
-                        Console.WriteLine($"檢測到歌曲 -結束: {currentSeconds:F2}秒, 總時長: {durationSeconds:F2}秒");
-                    }
-                }
-            }
-            return isAtEnd;
         }
-        public void RenderMediaFile(string filePath, nint Handle, int Width, int Height)
+
+        public void LoadMedia(string filePath, int audioTrackIndex = 0)
         {
-            if (videoWindow != null) videoWindow.put_Visible(OABool.False);
+            _media?.Dispose();
-            Stop();
-            SafeRelease(ref renderer);
-            SafeRelease(ref lavSplitter);
-            SafeRelease(ref graphBuilder);
 
-
+            // 建立一個完整有聲音的 Media 給 secondary 播放器
-            int hr = 0;
+            _media = new Media(_libVLC, filePath, FromType.FromPath);
-            graphBuilder = (IGraphBuilder)new FilterGraph();
+            _media.AddOption(":audio-output=directsound");
-            try
+            _media.AddOption($":audio-track={audioTrackIndex}");
-            {
+            
-                lavSplitter = AddFilterByClsid(graphBuilder, "LAV Splitter", Clsid.LAVSplitter);
+            // 同時準備給 primary 播放器用的無聲音版本 Media
-                AddFilterByClsid(graphBuilder, "LAV Video Decoder", Clsid.LAVVideoDecoder);
+            _mediaNoAudio?.Dispose();
-                renderer = AddFilterByClsid(graphBuilder, "Secondary Video Renderer", Clsid.VideoRenderer);
+            _mediaNoAudio = new Media(_libVLC, filePath, FromType.FromPath);
-                //audioRenderer = AddFilterByClsid(graphBuilder, "Default DirectSound Device", Clsid.AudioRenderer);
+            _mediaNoAudio.AddOption(":no-audio");  // 關閉聲音輸出
-                mediaControl = (IMediaControl)graphBuilder;
-            }
-            catch (Exception ex)
-            {
-                Console.WriteLine("Error initializing graph builder with second monitor: " + ex.Message);
-            }
-            hr = graphBuilder.RenderFile(filePath, null);
-            if (hr == 0)
-                SetAudioTrackTo(1);
-            else
-                Console.WriteLine("Failed to render secondary file.");
-            // 绑定视频窗口到副屏幕
-            videoWindow = renderer as IVideoWindow;
-            if (videoWindow != null)
-            {
-                videoWindow.put_Owner(Handle); 
-                videoWindow.put_WindowStyle(WindowStyle.Child | WindowStyle.ClipChildren | WindowStyle.ClipSiblings);
-                videoWindow.SetWindowPosition(0, 0, Width, Height);
-                videoWindow.put_Visible(OABool.True); 
-            }
-            mediaControl.Run();
         }
+
+        public async Task PlayAsync()
+        {
+            if (_media == null || _mediaNoAudio == null) return;
+
+            _mediaPlayerPrimary.Play(_mediaNoAudio);  // 播放無聲音版本
+            await Task.Delay(100);
+            _mediaPlayerSecondary.Play(_media);              // 播放有聲音版本
+
+            await SyncPlayersAsync();
+        }
+        public async Task Play()
+        {
+            _mediaPlayerPrimary.Play();  // 播放無聲音版本
+            await Task.Delay(100);
+            _mediaPlayerSecondary.Play();              // 播放有聲音版本
+
+            await SyncPlayersAsync();
+        }
+
+        public void Pause()
+        {
+            _mediaPlayerPrimary.Pause();
+            _mediaPlayerSecondary.Pause();
+        }
+
+        public void Stop()
+        {
+            _mediaPlayerPrimary.Stop();
+            _mediaPlayerSecondary.Stop();
+        }
+        #endregion
+
+        #region Sync
+        private async Task SyncPlayersAsync()
+        {
+            while (_mediaPlayerPrimary.IsPlaying && _mediaPlayerSecondary.IsPlaying)
+            {
+                var t1 = _mediaPlayerPrimary.Time;
+                var t2 = _mediaPlayerSecondary.Time;
+
+                if (Math.Abs(t1 - t2) > 100)
+                    _mediaPlayerSecondary.Time = t1;
+
+                await Task.Delay(200);
+            }
+        }
+        #endregion
+
+        #region Mute
+        public bool Mute(bool isMuted)
+        { 
+            _mediaPlayerSecondary.Mute = isMuted;
+            return _mediaPlayerSecondary.Mute;
+        }
+        #endregion
+
+        #region Volume
         public void SetVolume(int volume)
         {
-            if (graphBuilder  != null)
+            _mediaPlayerPrimary.Volume = volume;
-            {
+            _mediaPlayerSecondary.Volume = volume;
-                IBasicAudio basicAudio = graphBuilder  as IBasicAudio;
-                if (basicAudio != null)
-                    basicAudio.put_Volume( Math.Max(-10000, Math.Min(0, volume)));
-            }
         }
-        public int GetVolume()
+        public int GetVolume() => _mediaPlayerSecondary?.Volume ?? 0;
+        #endregion
+
+        #region Audio Tracks
+        public List<TrackDescription> GetAudioTracks()
         {
-            if (graphBuilder  != null)
+            var result = new List<TrackDescription>();
+            var media = _mediaPlayerSecondary.Media;
+
+            if (media == null) return result;
+
+            if (!media.IsParsed)
+                media.Parse(MediaParseOptions.ParseLocal);
+
+            var tracks = media.Tracks;
+            if (tracks == null) return result;
+
+            foreach (var track in tracks.Where(t => t.TrackType == TrackType.Audio))
             {
-                IBasicAudio basicAudio = graphBuilder as IBasicAudio;
+                result.Add(new TrackDescription
-                if (basicAudio != null)
                 {
-                    int volume;
+                    Id = track.Id,
-                    basicAudio.get_Volume(out volume);
+                    Name = !string.IsNullOrEmpty(track.Language) ? track.Language : $"Audio Track {track.Id}"
-                    return volume;
+                });
-                }
             }
-            return -10000;
+            return result;
         }
-        private bool isVocalRemoved = false;
+
-        public bool ToggleVocalRemoval()
+        public async Task SetAudioTrackToAsync(int trackIndex)
         {
-            try
+            var audioTracks = GetAudioTracks();
+            if (trackIndex < 0 || trackIndex >= audioTracks.Count) return;
+
+            if (!_mediaPlayerSecondary.IsPlaying)
             {
-                IAMStreamSelect streamSelect = lavSplitter as IAMStreamSelect;
+                _mediaPlayerSecondary.Play();
-
+                await Task.Delay(500);
-                if (streamSelect != null)
-                {
-                    int trackCount;
-                    if (streamSelect.Count(out trackCount) == 0 && trackCount > 0)
-                    {
-                        int currentTrackIndex = -1;
-                        int audioTrack1 = -1;
-                        int audioTrack2 = -1;
-
-                        for (int i = 0; i < trackCount; i++)
-                        {
-                            // 獲取音軌信息
-                            AMMediaType mediaType;
-                            AMStreamSelectInfoFlags flags;
-                            int lcid, dwGroup;
-                            string name;
-                            object pObject, pUnk;
-
-                            streamSelect.Info(i, out mediaType, out flags, out lcid, out dwGroup, out name, out pObject, out pUnk);
-
-                            if (mediaType.majorType == MediaType.Audio)
-                            {
-                                if (audioTrack1 == -1)
-                                {
-                                    audioTrack1 = i;
-                                }
-                                else if (audioTrack2 == -1)
-                                {
-                                    audioTrack2 = i;
-                                }
-
-                                if ((flags & AMStreamSelectInfoFlags.Enabled) != 0)
-                                {
-                                    currentTrackIndex = i;
-                                }
-                            }
-
-                            DsUtils.FreeAMMediaType(mediaType);
-                        }
-
-                        // 切換音軌
-                        if (currentTrackIndex == audioTrack1 && audioTrack2 != -1)
-                        {
-                            streamSelect.Enable(audioTrack2, AMStreamSelectEnableFlags.Enable);
-                            isVocalRemoved = true;
-                        }
-                        else if (currentTrackIndex == audioTrack2 && audioTrack1 != -1)
-                        {
-                            streamSelect.Enable(audioTrack1, AMStreamSelectEnableFlags.Enable);
-                            isVocalRemoved = false;
-                        }
-
-
-                    }
-                }
             }
-            catch (Exception ex)
+
-            {
+            _mediaPlayerSecondary.SetAudioTrack(audioTracks[trackIndex].Id);
-                Console.WriteLine(ex.Message);
+            await Task.Delay(300);
-            }
-            return isVocalRemoved;
         }
-        public void SetAudioTrackTo(int trackIndex)
+        #endregion
+
+        #region Dispose
+        public void Dispose()
         {
-            try
+            if (_disposed) return;
-            {
-                IAMStreamSelect streamSelect = lavSplitter as IAMStreamSelect;
 
-                if (streamSelect != null)
+            _mediaPlayerPrimary?.Dispose();
-                {
+            _mediaPlayerSecondary?.Dispose();
-                    int trackCount;
+            _media?.Dispose();
-                    if (streamSelect.Count(out trackCount) == 0 && trackCount > 0)
+            _mediaNoAudio?.Dispose();
-                    {
+            _libVLC?.Dispose();
-                        int audioTrackIndex = -1;
 
-                        for (int i = 0; i < trackCount; i++)
+            _mediaNoAudio = null;
-                        {
+            _media = null;
-                            AMMediaType mediaType;
+            _disposed = true;
-                            AMStreamSelectInfoFlags flags;
-                            int lcid, dwGroup;
-                            string name;
-                            object pObject, pUnk;
-
-                            streamSelect.Info(i, out mediaType, out flags, out lcid, out dwGroup, out name, out pObject, out pUnk);
-
-                            if (mediaType.majorType == MediaType.Audio)
-                            {
-                                audioTrackIndex++;
-                                if (audioTrackIndex == trackIndex)
-                                {
-                                    streamSelect.Enable(i, AMStreamSelectEnableFlags.Enable);
-                                }
-                                else
-                                {
-                                    streamSelect.Enable(i, AMStreamSelectEnableFlags.DisableAll);
-                                }
-                            }
-
-                            DsUtils.FreeAMMediaType(mediaType);
-                        }
-                    }
-                }
-            }
-            catch (Exception ex)
-            {
-                Console.WriteLine(ex.Message);
-            }
         }
+        #endregion
+    }
+
+    public class TrackDescription
+    {
+        public int Id { get; set; }
+        public string Name { get; set; } = string.Empty;
     }
 }

Services/MediaServicePrimary.cs

@@ -1,92 +0,0 @@
-using DirectShowLib;
-using System;
-using System.Runtime.InteropServices;
-
-namespace DualScreenDemo.Services
-{
-    public class MediaServicePrimary : Video
-    {
-        IGraphBuilder graphBuilder;
-        IBaseFilter lavSplitter;
-        IBaseFilter lavVideoDecoder;
-        public IBaseFilter videoRenderer;
-        IMediaControl mediaControl;
-        IBaseFilter sourceFilter;
-        private IVideoWindow videoWindow;
-        public MediaServicePrimary() { }
-
-        public int Run() => (mediaControl != null) ? mediaControl.Run() : 0;
-        public int Stop() => (mediaControl != null)? mediaControl.Stop() : 0;
-        public int Pause() => (mediaControl != null) ? mediaControl.Pause() : 0;
-
-        public void VideoPlayerForm_FormClosing() {
-            if (videoWindow != null)
-            {
-                videoWindow.put_Visible(OABool.False);
-                videoWindow.put_Owner(IntPtr.Zero);
-                Marshal.ReleaseComObject(videoWindow);
-                videoWindow = null;
-            }
-        }
-        
-
-        public void StopAndReleaseResources()
-        {
-            if (mediaControl != null)
-            {
-                mediaControl.Stop();
-                SafeRelease(ref mediaControl);
-            }
-            SafeRelease(ref videoRenderer);
-            SafeRelease(ref sourceFilter);
-            SafeRelease(ref lavVideoDecoder);
-            SafeRelease(ref lavSplitter);
-            SafeRelease(ref graphBuilder);
-        }
-
-        public void RenderMediaFile(string filePath, nint Handle, int Width, int Height)
-        {
-            if (videoWindow != null) videoWindow.put_Visible(OABool.False);
-            StopAndReleaseResources();
-            
-
-            int hr;
-            graphBuilder = (IGraphBuilder)new FilterGraph();
-            if (graphBuilder == null)
-                throw new Exception("Failed to create FilterGraph for primary monitor.");
-
-            graphBuilder.AddSourceFilter(filePath, "Source", out sourceFilter);
-            try
-            {
-                lavSplitter = AddFilterByClsid(graphBuilder, "LAV Splitter", Clsid.LAVSplitter);
-                lavVideoDecoder = AddFilterByClsid(graphBuilder, "LAV Video Decoder", Clsid.LAVVideoDecoder);
-                videoRenderer = AddFilterByClsid(graphBuilder, "Primary Video Renderer", Clsid.VideoRenderer);
-                hr = graphBuilder.AddFilter(videoRenderer, "Primary Video Renderer");
-                DsError.ThrowExceptionForHR(hr);
-                mediaControl = (IMediaControl)graphBuilder;
-
-                hr = ConnectFilters(graphBuilder, sourceFilter, "Output", lavSplitter, "Input");
-                DsError.ThrowExceptionForHR(hr);
-                hr = ConnectFilters(graphBuilder, lavSplitter, "Video", lavVideoDecoder, "Input");
-                DsError.ThrowExceptionForHR(hr);
-                hr = ConnectFilters(graphBuilder, lavVideoDecoder, "Output", videoRenderer, "VMR Input0");
-                DsError.ThrowExceptionForHR(hr);
-
-                videoWindow = videoRenderer as IVideoWindow;
-                if (videoWindow != null)
-                {
-                    videoWindow.put_Owner(Handle);
-                    videoWindow.put_WindowStyle(WindowStyle.Child | WindowStyle.ClipChildren);
-                    videoWindow.SetWindowPosition(0, 0, Width, Height);
-                    videoWindow.put_Visible(OABool.True);
-                }
-                mediaControl.Run();
-            }
-            catch (Exception ex)
-            {
-                Console.WriteLine("Error initializing graph builder for primary monitor: " + ex.Message);
-            }
-        }
-        
-    }
-}

Services/Video.cs

@@ -1,75 +0,0 @@
-using DirectShowLib;
-using System.Runtime.InteropServices;
-
-namespace DualScreenDemo.Services
-{
-    public class Video
-    {
-        protected IBaseFilter AddFilterByClsid(IGraphBuilder graphBuilder, string name, Guid clsid)
-        {
-            try
-            {
-                Type filterType = Type.GetTypeFromCLSID(clsid);
-                object filterObject = Activator.CreateInstance(filterType);
-                IBaseFilter filter = filterObject as IBaseFilter;
-
-                if (filter == null)
-                {
-                    IntPtr comObjectPointer = Marshal.GetIUnknownForObject(filterObject);
-                    filter = (IBaseFilter)Marshal.GetObjectForIUnknown(comObjectPointer);
-                }
-                
-                // 添加过滤器到图形构建器
-                int hr = graphBuilder.AddFilter(filter, name);
-                DsError.ThrowExceptionForHR(hr);
-                return filter;
-            }
-            catch (Exception ex)
-            {
-                Console.WriteLine($"Exception in AddFilterByClsid: {ex.Message}");
-                throw; // Rethrow the exception to handle it further up the call stack
-            }
-        }
-        protected int ConnectFilters(IGraphBuilder graphBuilder, IBaseFilter sourceFilter, string sourcePinName, IBaseFilter destFilter, string destPinName)
-        {
-            IPin outPin = FindPin(sourceFilter, sourcePinName);
-            IPin inPin = FindPin(destFilter, destPinName);
-            if (outPin == null || inPin == null)
-            {
-                Console.WriteLine(String.Format("Cannot find pins: {0} or {1}", sourcePinName, destPinName));
-                return -1;
-            }
-            int hr = graphBuilder.Connect(outPin, inPin);
-            return hr;
-        }
-        protected IPin FindPin(IBaseFilter filter, string pinName)
-        {
-            IEnumPins enumPins;
-            IPin[] pins = new IPin[1];
-
-            filter.EnumPins(out enumPins);
-            enumPins.Reset();
-
-            while (enumPins.Next(1, pins, IntPtr.Zero) == 0)
-            {
-                PinInfo pinInfo;
-                pins[0].QueryPinInfo(out pinInfo);
-                //Console.WriteLine(pinInfo+":"+pinInfo.name);
-
-                if (pinInfo.name == pinName)
-                {
-                    return pins[0];
-                }
-            }
-            return null;
-        }
-        protected void SafeRelease<T>(ref T comObject) where T : class
-        {
-            if (comObject != null)
-            {
-                Marshal.ReleaseComObject(comObject);
-                comObject = null;
-            }
-        }
-    }
-}

VideoPlayerForm.cs

@@ -1,7 +1,4 @@
-using System.IO; // For StreamWriter
 using System.Runtime.InteropServices;
-using System.Windows.Media;
-using DirectShowLib;
 using DBObj;
 using OverlayFormObj;
 using DualScreenDemo.Services;
@@ -69,14 +66,11 @@ namespace DualScreenDemo
         private const int GWL_EXSTYLE = -20;
         private const int WS_EX_TOPMOST = 0x00000008;
         private const uint SWP_NOZORDER = 0x0004;
-        private MediaServicePrimary primary = new MediaServicePrimary();
+        //private MediaServicePrimary primary = new MediaServicePrimary();
-        private MediaService secondary = new MediaService();
+        private MediaService secondary= new MediaService();
-        
-        
-
         public static OverlayForm overlayForm;
         public bool isMuted = false;
-        public int previousVolume = 0;
+        public int previousVolume = 100;
         public bool isPaused = false;
         private bool isSyncToPrimaryMonitor = false;
 
@@ -87,12 +81,9 @@ namespace DualScreenDemo
         }
 
         private static Screen secondMonitor;
-        private int newWidth;
-        private int newHeight;
 
         public VideoPlayerForm()
         {
-            Lold();
             Instance = this;
             // this.DoubleBuffered = true;
             this.Load += VideoPlayerForm_Load;
@@ -103,32 +94,7 @@ namespace DualScreenDemo
             HttpServer.OnDisplayBarrage += DisplayBarrageOnOverlay;
             MonitorMediaEvents();
         }
-        void Lold(){
+        
-            int designWidth = 1620;
-            int designHeight = 1080;
-
-            int actualWidth = PrimaryForm.Instance.primaryScreenPanel.Width;
-            int actualHeight = PrimaryForm.Instance.primaryScreenPanel.Height;
-
-            // 等比例縮放（不會超出，fit）
-            float scaleX = (float)actualWidth / designWidth;
-            float scaleY = (float)actualHeight / designHeight;
-            float scale = Math.Min(scaleX, scaleY);
-
-            // 計算縮放後的尺寸（但起點仍是 0,0）
-            newWidth = (int)(designWidth * scale);
-            newHeight = (int)(designHeight * scale);
-
-            // trash location with trash flexible of screen size.
-            if (actualWidth == 1024)
-            {
-                newWidth = (int)(newWidth * 0.84f);
-            }
-            else if (actualWidth == 1440)
-            {
-                newWidth = (int)(newWidth * 0.9f);
-            }
-        }
 
         private void VideoPlayerForm_Load(object sender, EventArgs e)
         {
@@ -154,14 +120,15 @@ namespace DualScreenDemo
             }
             else
             { 
+                secondary.SetVideoFormPrimary(PrimaryForm.Instance.videoPanel.Handle,PrimaryForm.Instance.videoPanel.Width,PrimaryForm.Instance.videoPanel.Height);
+                secondary.SetVideoFormSecondary(this.Handle,secondMonitor.Bounds.Width,secondMonitor.Bounds.Height);
                 PlayNextSong();
             }
         }
 
         private void VideoPlayerForm_FormClosing(object sender, FormClosingEventArgs e)
         {
-            primary.VideoPlayerForm_FormClosing();
+            secondary.Dispose();
-            secondary.VideoPlayerForm_FormClosing();
             // 清理COM
             CoUninitialize();
         }
@@ -353,11 +320,11 @@ namespace DualScreenDemo
         {
             string pathToPlay = song.getFile();
             // 渲染媒體文件
-            primary.RenderMediaFile(pathToPlay,PrimaryForm.Instance.primaryScreenPanel.Handle,newWidth,newHeight);
+            secondary.LoadMedia(pathToPlay,song.isPublicSong ? 0 : 1);
-            secondary.RenderMediaFile(pathToPlay,this.Handle,secondMonitor.Bounds.Width,secondMonitor.Bounds.Height);
+            secondary.PlayAsync();
             
             // 音量處理
-            SetVolume(isMuted ? -10000 : previousVolume);
+            SetVolume(isMuted ? 0 : previousVolume);
             
             if (isSyncToPrimaryMonitor) SyncToPrimaryMonitor();
             return Task.CompletedTask;
@@ -389,8 +356,7 @@ namespace DualScreenDemo
                 {
                     try
                     {
-                        bool isAtEnd = secondary.IsAtEnd() ;
+                        if (secondary.IsAtEnd())
-                        if (isAtEnd && !isPaused)
                         {
                             BeginInvoke(new Action(async () =>
                             {
@@ -425,21 +391,18 @@ namespace DualScreenDemo
 
         public void Play()
         {
-            primary.Run();
+            secondary.Play();
-            secondary.Run();
             isPaused = false;
             OverlayForm.MainForm.HidePauseLabel();
         }
 
         public void Stop()
         {
-            primary.Stop();
             secondary.Stop();
         }
 
         public void Pause()
         {
-            primary.Pause();
             secondary.Pause();
             isPaused = true;
             OverlayForm.MainForm.ShowPauseLabel();
@@ -477,18 +440,26 @@ namespace DualScreenDemo
                 PrimaryForm.Instance.syncPauseButton.Visible = true;
             }
         }
+        public bool Mute(bool isMuted)
+        {
+            return secondary.Mute(isMuted);
+        }
         public void SetVolume(int volume)
         {
+            Console.WriteLine($"SetVolume: {volume}");
             secondary.SetVolume(volume);
         }
         public int GetVolume()
         {
             return secondary.GetVolume();
         }
-        
+        private bool isVocalRemoved = false;
         public void ToggleVocalRemoval()
         {
-            OverlayForm.MainForm.ShowTopRightLabelTime(secondary.ToggleVocalRemoval() ? "無人聲" : "有人聲");
+            isVocalRemoved=!isVocalRemoved;
+            int trackIndex = isVocalRemoved ? 1:0;
+            secondary.SetAudioTrackToAsync(trackIndex);
+            OverlayForm.MainForm.ShowTopRightLabelTime(isVocalRemoved ? "無人聲" : "有人聲");
         }
     }
 }

superstar.csproj

@@ -15,9 +15,12 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="LibVLCSharp" Version="3.9.4" />
+    <PackageReference Include="LibVLCSharp.WinForms" Version="3.9.4" />
     <PackageReference Include="MySqlConnector" Version="2.4.0" />
     <PackageReference Include="System.Data.SQLite.Core" Version="1.0.117" />
     <PackageReference Include="System.IO.Ports" Version="9.0.3" />
+    <PackageReference Include="VideoLAN.LibVLC.Windows" Version="3.0.21" />
   </ItemGroup>
   <ItemGroup>
     <Reference Include="AxInterop.WMPLib">