feature: Display Camera

Interops/CameraInterops.cs

@@ -0,0 +1,186 @@
+namespace SinMaiLauncher.Interops;
+
+using System.Runtime.InteropServices;
+using DirectShowLib;
+
+internal static class CameraInterops
+{
+    public static DsDevice[] GetAllCamera() => DsDevice.GetDevicesOfCat(FilterCategory.VideoInputDevice);
+
+    internal class CameraCaptureWrap : IDisposable
+    {
+        private readonly Control _container;
+
+        private readonly IFilterGraph2 graphBuilder;
+        private readonly ICaptureGraphBuilder2 captureGraphBuilder;
+        private readonly IMediaControl mediaControl;
+        private readonly IVideoWindow videoWindow;
+        private readonly IBaseFilter captureFilter;
+        private readonly IAMStreamConfig streamConfig;
+
+        public IReadOnlyList<ICameraFormat> SupportedFormats { get; private set; }
+
+        public CameraCaptureWrap(DsDevice camera, Control container)
+        {
+            _container = container;
+
+            // 创建滤镜图
+            graphBuilder = (IFilterGraph2)new FilterGraph();
+            mediaControl = (IMediaControl)graphBuilder;
+            videoWindow = (IVideoWindow)graphBuilder;
+
+            // 创建捕获图构建器并设置滤镜图
+            captureGraphBuilder = (ICaptureGraphBuilder2)new CaptureGraphBuilder2();
+            captureGraphBuilder.SetFiltergraph(graphBuilder);
+
+            // 使用指定的摄像头设备
+            var iid = typeof(IBaseFilter).GUID;
+            camera.Mon.BindToObject(null, null, ref iid, out var source);
+            captureFilter = (IBaseFilter)source;
+            graphBuilder.AddFilter(captureFilter, "Video Capture");
+
+            // 获取 IAMStreamConfig 接口
+            captureGraphBuilder.FindInterface(
+                PinCategory.Capture, MediaType.Video, captureFilter,
+                typeof(IAMStreamConfig).GUID, out var configObj);
+            streamConfig = configObj as IAMStreamConfig;
+
+            // 枚举支持的视频格式
+            streamConfig.GetNumberOfCapabilities(out var count, out var size);
+
+            var fmtLst = new List<CameraFormat>(count);
+
+            for (var i = 0; i < count; i++)
+            {
+                // 分配内存并获取指向 VideoStreamConfigCaps 的指针
+                var capsPtr = Marshal.AllocHGlobal(size);
+                try
+                {
+                    // 调用 GetStreamCaps
+                    var hr = streamConfig.GetStreamCaps(i, out var mediaType, capsPtr);
+                    if (hr < 0)
+                    {
+                        Console.WriteLine($"GetStreamCaps failed with error: {hr}");
+                        continue;
+                    }
+
+                    // 解析媒体类型和 caps
+                    if (mediaType.formatType == FormatType.VideoInfo)
+                    {
+                        // 将指针转换回结构
+                        var caps = (VideoStreamConfigCaps)Marshal.PtrToStructure(capsPtr, typeof(VideoStreamConfigCaps));
+                        //TO DO: 使用caps，如果需要
+
+                        var fmt = new CameraFormat(mediaType);
+                        fmtLst.Add(fmt);
+                    }
+                }
+                finally
+                {
+                    // 释放分配的内存
+                    Marshal.FreeHGlobal(capsPtr);
+                }
+            }
+
+            SupportedFormats = fmtLst.ToArray();
+        }
+
+        public interface ICameraFormat
+        {
+            public int Width { get; }
+            public int Height { get; }
+            public double Fps { get; }
+            public int Bits { get; }
+
+            public string Name => $"{Width}x{Height} {Bits}Bit {Fps:N2}FPS";
+        }
+
+        public class CameraFormat : ICameraFormat
+        {
+            public AMMediaType MediaType { get; }
+            public int Width { get; }
+            public int Height { get; }
+            public double Fps { get; }
+            public int Bits { get; }
+            public string Name => $"{Width}x{Height} {Bits}Bit {Fps:N2}FPS";
+
+            public CameraFormat(AMMediaType mediaType)
+            {
+                MediaType = mediaType;
+
+                var vih = (VideoInfoHeader)Marshal.PtrToStructure(mediaType.formatPtr, typeof(VideoInfoHeader));
+                Width = vih.BmiHeader.Width;
+                Height = vih.BmiHeader.Height;
+                Bits = vih.BmiHeader.BitCount;
+                Fps = 10000000.0 / vih.AvgTimePerFrame;
+            }
+        }
+
+        public void Dispose()
+        {
+            var pfs = FilterState.Stopped;
+            mediaControl?.GetState(100, out pfs);
+            if (pfs != FilterState.Stopped) mediaControl?.Stop();
+
+            if (videoWindow != null) videoWindow.put_Visible(OABool.False);
+
+            Marshal.ReleaseComObject(mediaControl);
+            Marshal.ReleaseComObject(videoWindow);
+            Marshal.ReleaseComObject(graphBuilder);
+            Marshal.ReleaseComObject(captureGraphBuilder);
+            Marshal.ReleaseComObject(captureFilter);
+            Marshal.ReleaseComObject(streamConfig);
+
+            // 释放 AMMediaType
+            foreach (var format in SupportedFormats)
+            {
+                DsUtils.FreeAMMediaType(((CameraFormat)format).MediaType);
+            }
+
+            SupportedFormats = Array.Empty<ICameraFormat>();
+        }
+
+        public void ApplySelectedFormat(ICameraFormat selectedItem)
+        {
+            mediaControl.GetState(100, out var pfs);
+            if (pfs != FilterState.Stopped) mediaControl.Stop();
+
+            var fmt = (CameraFormat)selectedItem;
+            streamConfig.SetFormat(fmt.MediaType);
+
+            // 渲染预览流
+            captureGraphBuilder.RenderStream(PinCategory.Preview, MediaType.Video, captureFilter, null, null);
+            mediaControl.Run();
+
+            // 设置视频窗口
+            videoWindow.put_Owner(_container.Handle);
+            videoWindow.put_WindowStyle(WindowStyle.Child | WindowStyle.ClipChildren);
+            videoWindow.put_Visible(OABool.True); // 确保窗口可见
+            videoWindow.SetWindowPosition(0, 0, _container.Width, _container.Height); // 设置初始大小
+            //TODO: 估计要跟随 Resize 事件
+        }
+
+        public ICameraFormat? FindBestFormat(int targetWidth, int targetHeight, double targetRefreshRate)
+        {
+            ICameraFormat? bestMatch = null;
+            var minScore = double.MaxValue;
+
+            foreach (var format in SupportedFormats)
+            {
+                var fmt = (CameraFormat)format;
+
+                var resolutionScore = (fmt.Width == targetWidth && fmt.Height == targetHeight) ? 0 : Math.Abs(fmt.Width - targetWidth) + Math.Abs(fmt.Height - targetHeight);
+                var frameRateScore = Math.Abs(fmt.Fps - targetRefreshRate);
+                var totalScore = resolutionScore * 1000 + frameRateScore; // 分辨率优先
+
+                if (totalScore < minScore)
+                {
+                    minScore = totalScore;
+                    bestMatch = format;
+                }
+            }
+
+            return bestMatch;
+        }
+    }
+}

MainForm.Designer.cs

@@ -101,6 +101,12 @@
             tpConsoleAquaDx = new TabPage();
             tpConsoleInjector = new TabPage();
             tabPageCamera = new TabPage();
+            picBoxCamera = new PictureBox();
+            cboCameraFormats = new ComboBox();
+            cboCameraDevices = new ComboBox();
+            btnCameraClose = new Button();
+            btnCameraOpen = new Button();
+            btnCameraList = new Button();
             tpRecordScreen = new TabPage();
             tmrMain = new System.Windows.Forms.Timer(components);
             label11 = new Label();
@@ -141,6 +147,7 @@
             tpConsoles.SuspendLayout();
             tcConsoles.SuspendLayout();
             tabPageCamera.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)picBoxCamera).BeginInit();
             tpRecordScreen.SuspendLayout();
             SuspendLayout();
             // 
@@ -265,11 +272,11 @@
             // label10
             // 
             label10.AutoSize = true;
-            label10.Location = new Point(20, 14);
+            label10.Location = new Point(34, 40);
             label10.Name = "label10";
-            label10.Size = new Size(56, 17);
+            label10.Size = new Size(92, 17);
             label10.TabIndex = 0;
-            label10.Text = "还没做！";
+            label10.Text = "支持的视频格式";
             // 
             // label13
             // 
@@ -328,7 +335,7 @@
             tpUtils1.Location = new Point(4, 26);
             tpUtils1.Name = "tpUtils1";
             tpUtils1.Padding = new Padding(3);
-            tpUtils1.Size = new Size(716, 127);
+            tpUtils1.Size = new Size(1019, 519);
             tpUtils1.TabIndex = 5;
             tpUtils1.Text = "实用工具1";
             tpUtils1.UseVisualStyleBackColor = true;
@@ -391,7 +398,7 @@
             tpUtils2.Location = new Point(4, 26);
             tpUtils2.Name = "tpUtils2";
             tpUtils2.Padding = new Padding(3);
-            tpUtils2.Size = new Size(716, 127);
+            tpUtils2.Size = new Size(1019, 519);
             tpUtils2.TabIndex = 1;
             tpUtils2.Text = "实用工具2";
             tpUtils2.UseVisualStyleBackColor = true;
@@ -779,7 +786,7 @@
             tcMain.Location = new Point(0, 0);
             tcMain.Name = "tcMain";
             tcMain.SelectedIndex = 0;
-            tcMain.Size = new Size(724, 157);
+            tcMain.Size = new Size(1027, 549);
             tcMain.TabIndex = 5;
             // 
             // tpMainControl
@@ -791,7 +798,7 @@
             tpMainControl.Location = new Point(4, 26);
             tpMainControl.Name = "tpMainControl";
             tpMainControl.Padding = new Padding(3);
-            tpMainControl.Size = new Size(716, 127);
+            tpMainControl.Size = new Size(1019, 519);
             tpMainControl.TabIndex = 0;
             tpMainControl.Text = "主控";
             tpMainControl.UseVisualStyleBackColor = true;
@@ -803,7 +810,7 @@
             tpMisc.Location = new Point(4, 26);
             tpMisc.Name = "tpMisc";
             tpMisc.Padding = new Padding(3);
-            tpMisc.Size = new Size(716, 127);
+            tpMisc.Size = new Size(1019, 519);
             tpMisc.TabIndex = 2;
             tpMisc.Text = "其他功能";
             tpMisc.UseVisualStyleBackColor = true;
@@ -817,7 +824,7 @@
             tpSubControls.Location = new Point(4, 26);
             tpSubControls.Name = "tpSubControls";
             tpSubControls.Padding = new Padding(3);
-            tpSubControls.Size = new Size(716, 127);
+            tpSubControls.Size = new Size(1019, 519);
             tpSubControls.TabIndex = 4;
             tpSubControls.Text = "分控";
             tpSubControls.UseVisualStyleBackColor = true;
@@ -828,7 +835,7 @@
             tpConsoles.Location = new Point(4, 26);
             tpConsoles.Name = "tpConsoles";
             tpConsoles.Padding = new Padding(3);
-            tpConsoles.Size = new Size(716, 127);
+            tpConsoles.Size = new Size(1019, 519);
             tpConsoles.TabIndex = 3;
             tpConsoles.Text = "控制台";
             tpConsoles.UseVisualStyleBackColor = true;
@@ -843,7 +850,7 @@
             tcConsoles.Location = new Point(3, 3);
             tcConsoles.Name = "tcConsoles";
             tcConsoles.SelectedIndex = 0;
-            tcConsoles.Size = new Size(710, 121);
+            tcConsoles.Size = new Size(1013, 513);
             tcConsoles.TabIndex = 1;
             tcConsoles.SelectedIndexChanged += tcConsoles_SelectedIndexChanged;
             // 
@@ -852,7 +859,7 @@
             tpConsoleLauncher.Location = new Point(4, 26);
             tpConsoleLauncher.Name = "tpConsoleLauncher";
             tpConsoleLauncher.Padding = new Padding(3);
-            tpConsoleLauncher.Size = new Size(702, 91);
+            tpConsoleLauncher.Size = new Size(1005, 483);
             tpConsoleLauncher.TabIndex = 0;
             tpConsoleLauncher.Text = "启动器";
             tpConsoleLauncher.UseVisualStyleBackColor = true;
@@ -862,7 +869,7 @@
             tpConsoleMaria.Location = new Point(4, 26);
             tpConsoleMaria.Name = "tpConsoleMaria";
             tpConsoleMaria.Padding = new Padding(3);
-            tpConsoleMaria.Size = new Size(702, 91);
+            tpConsoleMaria.Size = new Size(1005, 483);
             tpConsoleMaria.TabIndex = 1;
             tpConsoleMaria.Text = "Maria";
             tpConsoleMaria.UseVisualStyleBackColor = true;
@@ -872,7 +879,7 @@
             tpConsoleAquaDx.Location = new Point(4, 26);
             tpConsoleAquaDx.Name = "tpConsoleAquaDx";
             tpConsoleAquaDx.Padding = new Padding(3);
-            tpConsoleAquaDx.Size = new Size(702, 91);
+            tpConsoleAquaDx.Size = new Size(1005, 483);
             tpConsoleAquaDx.TabIndex = 2;
             tpConsoleAquaDx.Text = "AquaDX";
             tpConsoleAquaDx.UseVisualStyleBackColor = true;
@@ -882,29 +889,95 @@
             tpConsoleInjector.Location = new Point(4, 26);
             tpConsoleInjector.Name = "tpConsoleInjector";
             tpConsoleInjector.Padding = new Padding(3);
-            tpConsoleInjector.Size = new Size(702, 91);
+            tpConsoleInjector.Size = new Size(1005, 483);
             tpConsoleInjector.TabIndex = 3;
             tpConsoleInjector.Text = "加载器";
             tpConsoleInjector.UseVisualStyleBackColor = true;
             // 
             // tabPageCamera
             // 
+            tabPageCamera.Controls.Add(picBoxCamera);
+            tabPageCamera.Controls.Add(cboCameraFormats);
+            tabPageCamera.Controls.Add(cboCameraDevices);
+            tabPageCamera.Controls.Add(btnCameraClose);
+            tabPageCamera.Controls.Add(btnCameraOpen);
+            tabPageCamera.Controls.Add(btnCameraList);
             tabPageCamera.Controls.Add(label10);
             tabPageCamera.Location = new Point(4, 26);
             tabPageCamera.Name = "tabPageCamera";
             tabPageCamera.Padding = new Padding(3);
-            tabPageCamera.Size = new Size(716, 127);
+            tabPageCamera.Size = new Size(1019, 519);
             tabPageCamera.TabIndex = 6;
             tabPageCamera.Text = "摄像头";
             tabPageCamera.UseVisualStyleBackColor = true;
             // 
+            // picBoxCamera
+            // 
+            picBoxCamera.BorderStyle = BorderStyle.FixedSingle;
+            picBoxCamera.Location = new Point(10, 65);
+            picBoxCamera.Name = "picBoxCamera";
+            picBoxCamera.Size = new Size(506, 446);
+            picBoxCamera.TabIndex = 3;
+            picBoxCamera.TabStop = false;
+            // 
+            // cboCameraFormats
+            // 
+            cboCameraFormats.DisplayMember = "Name";
+            cboCameraFormats.DropDownStyle = ComboBoxStyle.DropDownList;
+            cboCameraFormats.FormattingEnabled = true;
+            cboCameraFormats.Location = new Point(132, 37);
+            cboCameraFormats.Name = "cboCameraFormats";
+            cboCameraFormats.Size = new Size(261, 25);
+            cboCameraFormats.TabIndex = 2;
+            cboCameraFormats.SelectedIndexChanged += cboCameraFormats_SelectedIndexChanged;
+            // 
+            // cboCameraDevices
+            // 
+            cboCameraDevices.DisplayMember = "Name";
+            cboCameraDevices.DropDownStyle = ComboBoxStyle.DropDownList;
+            cboCameraDevices.FormattingEnabled = true;
+            cboCameraDevices.Location = new Point(132, 6);
+            cboCameraDevices.Name = "cboCameraDevices";
+            cboCameraDevices.Size = new Size(261, 25);
+            cboCameraDevices.TabIndex = 2;
+            // 
+            // btnCameraClose
+            // 
+            btnCameraClose.Location = new Point(399, 35);
+            btnCameraClose.Name = "btnCameraClose";
+            btnCameraClose.Size = new Size(118, 27);
+            btnCameraClose.TabIndex = 1;
+            btnCameraClose.Text = "关闭摄像头";
+            btnCameraClose.UseVisualStyleBackColor = true;
+            btnCameraClose.Click += btnCameraClose_Click;
+            // 
+            // btnCameraOpen
+            // 
+            btnCameraOpen.Location = new Point(398, 6);
+            btnCameraOpen.Name = "btnCameraOpen";
+            btnCameraOpen.Size = new Size(118, 25);
+            btnCameraOpen.TabIndex = 1;
+            btnCameraOpen.Text = "打开摄像头";
+            btnCameraOpen.UseVisualStyleBackColor = true;
+            btnCameraOpen.Click += btnCameraOpen_Click;
+            // 
+            // btnCameraList
+            // 
+            btnCameraList.Location = new Point(8, 6);
+            btnCameraList.Name = "btnCameraList";
+            btnCameraList.Size = new Size(118, 25);
+            btnCameraList.TabIndex = 1;
+            btnCameraList.Text = "重新搜索摄像头";
+            btnCameraList.UseVisualStyleBackColor = true;
+            btnCameraList.Click += btnCameraList_Click;
+            // 
             // tpRecordScreen
             // 
             tpRecordScreen.Controls.Add(label13);
             tpRecordScreen.Location = new Point(4, 26);
             tpRecordScreen.Name = "tpRecordScreen";
             tpRecordScreen.Padding = new Padding(3);
-            tpRecordScreen.Size = new Size(716, 127);
+            tpRecordScreen.Size = new Size(1019, 519);
             tpRecordScreen.TabIndex = 7;
             tpRecordScreen.Text = "录屏";
             tpRecordScreen.UseVisualStyleBackColor = true;
@@ -919,7 +992,7 @@
             // 
             AutoScaleDimensions = new SizeF(7F, 17F);
             AutoScaleMode = AutoScaleMode.Font;
-            ClientSize = new Size(724, 157);
+            ClientSize = new Size(1027, 549);
             Controls.Add(tcMain);
             MinimizeBox = false;
             Name = "MainForm";
@@ -959,6 +1032,7 @@
             tcConsoles.ResumeLayout(false);
             tabPageCamera.ResumeLayout(false);
             tabPageCamera.PerformLayout();
+            ((System.ComponentModel.ISupportInitialize)picBoxCamera).EndInit();
             tpRecordScreen.ResumeLayout(false);
             tpRecordScreen.PerformLayout();
             ResumeLayout(false);
@@ -1032,5 +1106,11 @@
         private Button btnSysVolumeDec;
         private Button btnSysVolumeInc;
         private Label lblSysVolume;
+        private ComboBox cboCameraFormats;
+        private ComboBox cboCameraDevices;
+        private Button btnCameraClose;
+        private Button btnCameraOpen;
+        private Button btnCameraList;
+        private PictureBox picBoxCamera;
     }
 }

MainForm.cs

@@ -1,3 +1,4 @@
+using DirectShowLib;
 using Microsoft.Extensions.Logging.Console;
 using MySql.Data.MySqlClient;
 using SinMaiLauncher.ChildProcessHolder;
@@ -23,6 +24,8 @@ public partial class MainForm : Form
 
     private List<string> holdingExplorerWindowPaths = new();
 
+    private CameraInterops.CameraCaptureWrap? cameraCapture;
+
     public MainForm()
     {
         InitializeComponent();
@@ -243,10 +246,6 @@ public partial class MainForm : Form
                             }
                         }
                     }
-
-
-
-
                 }
 
                 if (InvokeRequired) await InvokeAsync(UpdateUi);
@@ -261,6 +260,18 @@ public partial class MainForm : Form
 
         tcMain.Enabled = true;
 
+        try
+        {
+            var cams = CameraInterops.GetAllCamera();
+            cboCameraDevices.Items.Clear();
+            foreach (var cam in cams) cboCameraDevices.Items.Add(cam);
+            if (cboCameraDevices.SelectedItem == null && cams.Length > 0) cboCameraDevices.SelectedIndex = 0;
+        }
+        catch (Exception exception)
+        {
+            logger.LogError(exception, "搜索摄像头");
+        }
+
         //#if DEBUG
         //        tcMain.SelectedTab = tpSubControls;
         //#else
@@ -286,6 +297,8 @@ public partial class MainForm : Form
         childProcessControlGroups[ChildProcessKind.Injector].StateBag.StopAsync(TimeSpan.FromSeconds(10)).Wait(TimeSpan.FromSeconds(10));
         childProcessControlGroups[ChildProcessKind.AquaDx].StateBag.StopAsync(TimeSpan.FromSeconds(10)).Wait(TimeSpan.FromSeconds(10));
         childProcessControlGroups[ChildProcessKind.MariaDb].StateBag.StopAsync(TimeSpan.FromSeconds(10)).Wait(TimeSpan.FromSeconds(10));
+
+        cameraCapture?.Dispose();
     }
 
     private void tcConsoles_SelectedIndexChanged(object sender, EventArgs e)
@@ -324,7 +337,6 @@ public partial class MainForm : Form
                     continue;
                 }
 
-
                 await cpb.StartAsync();
                 await WaitForReadyAsync(cpb, timeout);
 
@@ -624,4 +636,44 @@ public partial class MainForm : Form
         public Button StartButton { get; set; }
         public Button StopButton { get; set; }
     }
+
+    private void btnCameraList_Click(object sender, EventArgs e)
+    {
+        var cams = CameraInterops.GetAllCamera();
+        if (cams.Length == 0) MessageBox.Show("笑死，一个摄像头都没找到！");
+        cboCameraDevices.Items.Clear();
+        foreach (var cam in cams) cboCameraDevices.Items.Add(cam);
+        if (cboCameraDevices.SelectedItem == null && cams.Length > 0) cboCameraDevices.SelectedIndex = 0;
+    }
+
+    private void btnCameraOpen_Click(object sender, EventArgs e)
+    {
+        if (cboCameraDevices.SelectedItem == null)
+        {
+            MessageBox.Show("还没选择要打开的摄像头！");
+            return;
+        }
+
+        cameraCapture?.Dispose();
+
+        cameraCapture = new CameraInterops.CameraCaptureWrap((DsDevice)cboCameraDevices.SelectedItem, picBoxCamera);
+
+        cboCameraFormats.Items.Clear();
+        foreach (var format in cameraCapture.SupportedFormats) cboCameraFormats.Items.Add(format);
+
+        var bestFormat = cameraCapture.FindBestFormat(450, 390, 60);
+        if (bestFormat != null) cboCameraFormats.SelectedItem = bestFormat;
+    }
+
+    private void btnCameraClose_Click(object sender, EventArgs e)
+    {
+        cameraCapture?.Dispose();
+        cameraCapture = null;
+    }
+
+    private void cboCameraFormats_SelectedIndexChanged(object sender, EventArgs e)
+    {
+        if (cboCameraFormats.SelectedItem != null)
+            cameraCapture?.ApplySelectedFormat((CameraInterops.CameraCaptureWrap.ICameraFormat)cboCameraFormats.SelectedItem);
+    }
 }

SinMaiLauncher.csproj

@@ -23,6 +23,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
+		<PackageReference Include="DirectShowLib.Standard" Version="2.1.0" />
 		<PackageReference Include="MySql.Data" Version="9.2.0" />
 		<PackageReference Include="NAudio" Version="2.2.1" />
 		<PackageReference Include="Vanara.PInvoke.Ole" Version="4.1.1" />