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包帳 State 没變 不重復做
VideoPlayForm 大調整
This commit is contained in:
jasonchenwork 2025-08-07 18:34:45 +08:00
parent 5ff2e096fc
commit f8a6e5c40d
5 changed files with 722 additions and 726 deletions
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5
Program.cs
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@ -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 V2.7 202508041725";
public static string verSion = "Server V2.8 202508071811";
[STAThread]
static void Main()
@ -82,9 +82,6 @@ namespace DualScreenDemo
// 显示 videoPlayerForm 在第二显示器
primaryForm.videoPlayerForm.Show();
// 初始化公共播放列表
primaryForm.videoPlayerForm.PlayNextSong();
}
}
primaryForm.Show();

18
Room.cs
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@ -65,22 +65,26 @@ namespace DualScreenDemo
}
public void set(string value)
{
State =getDB();
Console.WriteLine($"hostname status: {hostName},{State},{startedAt},{endedAt}");
string StateDB=getDB();
Console.WriteLine($"hostname status: {hostName},{StateDB},{startedAt},{endedAt} ,{State}");
string marqueeMessage = "歡迎使用超級巨星歡唱，與你共度美好時光。";
Color c = Color.White;
if (State.Equals("fire"))
if (StateDB.Equals("fire"))
{
PrimaryForm.Instance.ShowSendOffScreen();
VideoPlayerForm.Instance.Pause();
marqueeMessage = "發生火災，請跟隨引導至逃生出口!!!";
c = Color.Red;
}
else if (State.Equals("active"))
else if (StateDB.Equals("active"))
{
DBObj.SongList.clearSong();
PrimaryForm.Instance.HotPlayButton_Click(null, EventArgs.Empty);
PrimaryForm.Instance.HideSendOffScreen();
if (!State.Equals(StateDB))
{
DBObj.SongList.clearSong();
PrimaryForm.Instance.HotPlayButton_Click(null, EventArgs.Empty);
PrimaryForm.Instance.HideSendOffScreen();
}
}
else
{

370
Services/MediaService.cs Normal file
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@ -0,0 +1,370 @@
using DirectShowLib;
using System;
using System.Runtime.InteropServices;
namespace DualScreenDemo.Services
{
public class MediaService
{
public IGraphBuilder graphBuilder;
private IMediaControl mediaControl;
private IBaseFilter videoRenderer;
private IBaseFilter lavSplitter;
private IBaseFilter lavVideoDecoder;
private IBaseFilter lavAudioDecoder;
private IPin outputPin;
private IBaseFilter audioRenderer;
private IVideoWindow videoWindow;
public int Run()
{
if (mediaControl != null)
return mediaControl.Run();
else
return 0;
}
public int Stop()
{
if (mediaControl != null)
return mediaControl.Stop();
else
return 0;
}
public int Pause()
{
if (mediaControl != null)
return mediaControl.Pause();
else
return 0;
}
public void VideoPlayerFormClosing()
{
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 videoWindow);
SafeRelease(ref videoRenderer);
SafeRelease(ref lavAudioDecoder);
SafeRelease(ref outputPin);
SafeRelease(ref lavVideoDecoder);
SafeRelease(ref lavSplitter);
SafeRelease(ref graphBuilder);
}
public bool isAtEnd()
{
bool isAtEnd = false;
if (mediaControl == null) { return false; }
IMediaSeeking mediaSeeking = graphBuilder as IMediaSeeking;
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)
{
StopAndReleaseResources();
if (videoWindow != null) videoWindow.put_Visible(OABool.False);
int hr = 0;
graphBuilder = (IGraphBuilder)new FilterGraph();
if (graphBuilder == null)
{
Console.WriteLine("Failed to create FilterGraph");
throw new Exception("Failed to create FilterGraph");
}
try
{
lavSplitter = AddFilterByClsid(graphBuilder, "LAV Splitter", Clsid.LAVSplitter);
lavVideoDecoder = AddFilterByClsid(graphBuilder, "LAV Video Decoder", Clsid.LAVVideoDecoder);
lavAudioDecoder = AddFilterByClsid(graphBuilder, "LAV Audio Decoder", Clsid.LAVAudioDecoder);
outputPin = FindPin(lavAudioDecoder, "Output");
videoRenderer = AddFilterByClsid(graphBuilder, "Secondary Video Renderer", Clsid.VideoRenderer);
if (videoRenderer == null)
{
Console.WriteLine("Failed to initialize Secondary Video Renderer.");
return;
}
hr = graphBuilder.AddFilter(videoRenderer, "Secondary Video Renderer");
DsError.ThrowExceptionForHR(hr);
var clsidAudioRenderer = new Guid("79376820-07D0-11CF-A24D-0020AFD79767"); // CLSID for DirectSound Renderer
audioRenderer = (IBaseFilter)Activator.CreateInstance(Type.GetTypeFromCLSID(clsidAudioRenderer));
hr = graphBuilder.AddFilter(audioRenderer, "Default DirectSound Device");
DsError.ThrowExceptionForHR(hr);
mediaControl = (IMediaControl)graphBuilder;
if (mediaControl == null)
{
Console.WriteLine("Failed to get Media Control");
return;
}
}
catch (Exception ex)
{
Console.WriteLine("Error initializing graph builder with second monitor: " + ex.Message);
}
hr = graphBuilder.RenderFile(filePath, null);
if (hr == 0)
{
Console.WriteLine("Secondary File rendered successfully.");
SetAudioTrackTo(1);
}
else
{
Console.WriteLine("Failed to render secondary file.");
}
// 绑定视频窗口到副屏幕
videoWindow = videoRenderer as IVideoWindow;
if (videoWindow != null)
{
videoWindow.put_Owner(Handle); // 副屏幕窗口句柄
videoWindow.put_WindowStyle(WindowStyle.Child | WindowStyle.ClipChildren | WindowStyle.ClipSiblings);
videoWindow.SetWindowPosition(0, 0, Width, Height);
videoWindow.put_Visible(OABool.True); // 显示窗口
}
}
private static IBaseFilter AddFilterByClsid(IGraphBuilder graphBuilder, string name, Guid clsid)
{
try
{
// 获取 CLSID 对应的类型
Type filterType = Type.GetTypeFromCLSID(clsid);
//Console.WriteLine($"Attempting to create filter of type: {filterType.FullName}");
// 创建实例
object filterObject = Activator.CreateInstance(filterType);
// 尝试转换为 IBaseFilter
IBaseFilter filter = filterObject as IBaseFilter;
if (filter == null)
{
// 如果转换失败，使用 IUnknown 获取并转换为 IBaseFilter
IntPtr comObjectPointer = Marshal.GetIUnknownForObject(filterObject);
filter = (IBaseFilter)Marshal.GetObjectForIUnknown(comObjectPointer);
// Console.WriteLine($"Successfully converted COM object to IBaseFilter via IUnknown.");
}
else
{
// Console.WriteLine($"Successfully created IBaseFilter directly.");
}
// 添加过滤器到图形构建器
int hr = graphBuilder.AddFilter(filter, name);
if (hr != 0)
{
// Console.WriteLine($"Failed to add filter {name} with CLSID {clsid}, HRESULT: {hr}");
}
DsError.ThrowExceptionForHR(hr);
// Console.WriteLine($"Successfully added filter {name} with CLSID {clsid}");
return filter;
}
catch (Exception ex)
{
Console.WriteLine($"Exception in AddFilterByClsid: {ex.Message}");
throw; // Rethrow the exception to handle it further up the call stack
}
}
private 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);
if (pinInfo.name == pinName)
{
return pins[0];
}
}
return null;
}
public void SetVolume(int volume)
{
if (audioRenderer != null)
{
IBasicAudio basicAudio = audioRenderer as IBasicAudio;
if (basicAudio != null)
{
basicAudio.put_Volume(volume);
}
}
}
public int GetVolume()
{
if (audioRenderer != null)
{
IBasicAudio basicAudio = audioRenderer as IBasicAudio;
if (basicAudio != null)
{
int volume;
basicAudio.get_Volume(out volume);
return volume;
}
}
return -10000;
}
private bool isVocalRemoved = false;
public bool ToggleVocalRemoval()
{
try
{
IAMStreamSelect streamSelect = lavSplitter as IAMStreamSelect;
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)
{
Console.WriteLine(ex.Message);
}
return isVocalRemoved;
}
public void SetAudioTrackTo(int trackIndex)
{
try
{
IAMStreamSelect streamSelect = lavSplitter as IAMStreamSelect;
if (streamSelect != null)
{
int trackCount;
if (streamSelect.Count(out trackCount) == 0 && trackCount > 0)
{
int audioTrackIndex = -1;
for (int i = 0; i < trackCount; i++)
{
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)
{
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);
}
}
private void SafeRelease<T>(ref T comObject) where T : class
{
if (comObject != null)
{
Marshal.ReleaseComObject(comObject);
comObject = null;
}
}
}
}

210
Services/MediaServicePrimary.cs Normal file
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@ -0,0 +1,210 @@
using DirectShowLib;
using System;
using System.Runtime.InteropServices;
namespace DualScreenDemo.Services
{
public class MediaServicePrimary
{
IGraphBuilder graphBuilder;
IBaseFilter sourceFilter;
IBaseFilter lavSplitter;
IBaseFilter lavVideoDecoder;
IBaseFilter videoRenderer;
IVideoWindow videoWindow;
IMediaControl mediaControl;
public MediaServicePrimary(){}
public int Run()
{
if (mediaControl != null)
return mediaControl.Run();
else
return 0;
}
public int Stop()
{
if (mediaControl != null)
return mediaControl.Stop();
else
return 0;
}
public int Pause()
{
if (mediaControl != null)
return mediaControl.Pause();
else
return 0;
}
public void VideoPlayerFormClosing()
{
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 videoWindow);
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)
{
StopAndReleaseResources();
if (videoWindow != null) videoWindow.put_Visible(OABool.False);
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;
if (mediaControl == null)
{
Console.WriteLine("Failed to get Media Control for primary monitor.");
return;
}
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);
try
{
IVideoWindow videoWindow = (IVideoWindow)videoRenderer;
videoWindow.put_Owner(Handle);
videoWindow.put_WindowStyle(WindowStyle.Child | WindowStyle.ClipChildren);
// ⬅ 左上角對齊（固定從 0,0 開始）
videoWindow.SetWindowPosition(0, 0, Width, Height);
videoWindow.put_Visible(OABool.True);
// Console.WriteLine("Video window configured successfully.");
}
catch (Exception ex)
{
Console.WriteLine(String.Format("Error syncing to primary monitor: {0}", ex.Message));
MessageBox.Show(String.Format("Error syncing to primary monitor: {0}", ex.Message));
}
}
catch (Exception ex)
{
Console.WriteLine("Error initializing graph builder for primary monitor: " + ex.Message);
}
}
private static IBaseFilter AddFilterByClsid(IGraphBuilder graphBuilder, string name, Guid clsid)
{
try
{
// 获取 CLSID 对应的类型
Type filterType = Type.GetTypeFromCLSID(clsid);
//Console.WriteLine($"Attempting to create filter of type: {filterType.FullName}");
// 创建实例
object filterObject = Activator.CreateInstance(filterType);
// 尝试转换为 IBaseFilter
IBaseFilter filter = filterObject as IBaseFilter;
if (filter == null)
{
// 如果转换失败，使用 IUnknown 获取并转换为 IBaseFilter
IntPtr comObjectPointer = Marshal.GetIUnknownForObject(filterObject);
filter = (IBaseFilter)Marshal.GetObjectForIUnknown(comObjectPointer);
// Console.WriteLine($"Successfully converted COM object to IBaseFilter via IUnknown.");
}
else
{
// Console.WriteLine($"Successfully created IBaseFilter directly.");
}
// 添加过滤器到图形构建器
int hr = graphBuilder.AddFilter(filter, name);
if (hr != 0)
{
// Console.WriteLine($"Failed to add filter {name} with CLSID {clsid}, HRESULT: {hr}");
}
DsError.ThrowExceptionForHR(hr);
// Console.WriteLine($"Successfully added filter {name} with CLSID {clsid}");
return filter;
}
catch (Exception ex)
{
Console.WriteLine($"Exception in AddFilterByClsid: {ex.Message}");
throw; // Rethrow the exception to handle it further up the call stack
}
}
private 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;
}
private 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);
if (pinInfo.name == pinName)
{
return pins[0];
}
}
return null;
}
private void SafeRelease<T>(ref T comObject) where T : class
{
if (comObject != null)
{
Marshal.ReleaseComObject(comObject);
comObject = null;
}
}
}
}

845
VideoPlayerForm.cs
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