469 lines
16 KiB
C#
469 lines
16 KiB
C#
using System.Runtime.InteropServices;
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using DBObj;
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using OverlayFormObj;
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using DualScreenDemo.Services;
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namespace DualScreenDemo
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{
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public class VideoPlayerForm : Form
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{
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#region 防止閃屏
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protected override CreateParams CreateParams
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{
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get
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{
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CreateParams cp = base.CreateParams;
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cp.ExStyle |= 0x02000000;
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return cp;
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}
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}
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#endregion
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// 单例实例
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public static VideoPlayerForm Instance { get; private set; }
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// 导入user32.dll API
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[DllImport("user32.dll")]
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static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);
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[DllImport("user32.dll", SetLastError = true)]
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static extern IntPtr GetWindowLong(IntPtr hWnd, int nIndex);
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[DllImport("user32.dll")]
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static extern int SetWindowLong(IntPtr hWnd, int nIndex, IntPtr dwNewLong);
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// Windows API 函數
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[DllImport("user32.dll")]
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static extern IntPtr GetDesktopWindow();
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[DllImport("user32.dll")]
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static extern IntPtr MonitorFromWindow(IntPtr hwnd, uint dwFlags);
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[DllImport("user32.dll")]
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static extern bool GetMonitorInfo(IntPtr hMonitor, ref MONITORINFO lpmi);
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// MONITORINFO 結構
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[StructLayout(LayoutKind.Sequential)]
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struct MONITORINFO
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{
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public int cbSize;
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public RECT rcMonitor;
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public RECT rcWork;
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public uint dwFlags;
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}
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// RECT 結構
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[StructLayout(LayoutKind.Sequential)]
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struct RECT
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{
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public int Left;
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public int Top;
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public int Right;
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public int Bottom;
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}
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private const int GWL_EXSTYLE = -20;
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private const int WS_EX_TOPMOST = 0x00000008;
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private const uint SWP_NOZORDER = 0x0004;
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//private MediaServicePrimary primary = new MediaServicePrimary();
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private MediaService secondary= new MediaService();
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public static OverlayForm overlayForm;
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public bool isMuted = false;
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public int previousVolume = 100;
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public bool isPaused = false;
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private bool isSyncToPrimaryMonitor = false;
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public bool IsSyncToPrimaryMonitor
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{
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get { return isSyncToPrimaryMonitor; }
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set { isSyncToPrimaryMonitor = value; }
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}
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private static Screen secondMonitor;
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public VideoPlayerForm()
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{
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Instance = this;
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// this.DoubleBuffered = true;
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this.Load += VideoPlayerForm_Load;
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this.Shown += VideoPlayerForm_Shown;
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this.FormClosing += VideoPlayerForm_FormClosing;
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InitializeOverlayForm(secondMonitor);
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BringOverlayToFront();
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HttpServer.OnDisplayBarrage += DisplayBarrageOnOverlay;
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MonitorMediaEvents();
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}
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private void VideoPlayerForm_Load(object sender, EventArgs e)
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{
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secondMonitor = ScreenHelper.GetSecondMonitor();
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if (secondMonitor != null)
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{
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this.FormBorderStyle = FormBorderStyle.None; // 设置窗体没有边框
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this.StartPosition = FormStartPosition.Manual;
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this.Location = secondMonitor.Bounds.Location;
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this.Size = secondMonitor.Bounds.Size;
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// this.DoubleBuffered = true;
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}
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Screen screen = Screen.FromHandle(this.Handle);
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}
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private void VideoPlayerForm_Shown(object sender, EventArgs e)
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{
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int hr = CoInitializeEx(IntPtr.Zero, COINIT.APARTMENTTHREADED);
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if (hr < 0)
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{
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Console.WriteLine("Failed to initialize COM library.");
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return;
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}
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else
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{
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secondary.SetVideoFormPrimary(PrimaryForm.Instance.videoPanel.Handle,PrimaryForm.Instance.videoPanel.Width,PrimaryForm.Instance.videoPanel.Height);
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secondary.SetVideoFormSecondary(this.Handle,secondMonitor.Bounds.Width,secondMonitor.Bounds.Height);
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PlayNextSong();
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}
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}
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private void VideoPlayerForm_FormClosing(object sender, FormClosingEventArgs e)
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{
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secondary.Dispose();
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// 清理COM
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CoUninitialize();
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}
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// COM API函数声明
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[DllImport("ole32.dll")]
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private static extern int CoInitializeEx(IntPtr pvReserved, COINIT dwCoInit);
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[DllImport("ole32.dll")]
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private static extern void CoUninitialize();
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// CoInitializeEx() 可以选择的参数
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private enum COINIT : int
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{
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APARTMENTTHREADED = 0x2,
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MULTITHREADED = 0x0
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}
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// 同步畫面事件
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public void SyncToPrimaryMonitor()
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{
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PrimaryForm.Instance.primaryScreenPanel.Visible = true;
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PrimaryForm.Instance.primaryScreenPanel.BringToFront();
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PrimaryForm.Instance.syncServiceBellButton.Visible = true;
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PrimaryForm.Instance.syncServiceBellButton.BringToFront();
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PrimaryForm.Instance.syncCutSongButton.Visible = true;
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PrimaryForm.Instance.syncCutSongButton.BringToFront();
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PrimaryForm.Instance.syncReplayButton.Visible = true;
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PrimaryForm.Instance.syncReplayButton.BringToFront();
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PrimaryForm.Instance.syncOriginalSongButton.Visible = true;
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PrimaryForm.Instance.syncOriginalSongButton.BringToFront();
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PrimaryForm.Instance.syncMuteButton.Visible = true;
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PrimaryForm.Instance.syncMuteButton.BringToFront();
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if (isPaused)
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{
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PrimaryForm.Instance.syncPlayButton.Visible = true;
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PrimaryForm.Instance.syncPlayButton.BringToFront();
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}
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else
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{
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PrimaryForm.Instance.syncPauseButton.Visible = true;
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PrimaryForm.Instance.syncPauseButton.BringToFront();
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}
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PrimaryForm.Instance.syncVolumeUpButton.Visible = true;
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PrimaryForm.Instance.syncVolumeUpButton.BringToFront();
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PrimaryForm.Instance.syncVolumeDownButton.Visible = true;
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PrimaryForm.Instance.syncVolumeDownButton.BringToFront();
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PrimaryForm.Instance.syncMicUpButton.Visible = true;
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PrimaryForm.Instance.syncMicUpButton.BringToFront();
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PrimaryForm.Instance.syncMicDownButton.Visible = true;
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PrimaryForm.Instance.syncMicDownButton.BringToFront();
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PrimaryForm.Instance.syncCloseButton.Visible = true;
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PrimaryForm.Instance.syncCloseButton.BringToFront();
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}
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public void ClosePrimaryScreenPanel()
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{
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try
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{
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PrimaryForm.Instance.primaryScreenPanel.Visible = false;
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PrimaryForm.Instance.syncServiceBellButton.Visible = false;
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PrimaryForm.Instance.syncCutSongButton.Visible = false;
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PrimaryForm.Instance.syncReplayButton.Visible = false;
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PrimaryForm.Instance.syncOriginalSongButton.Visible = false;
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PrimaryForm.Instance.syncMuteButton.Visible = false;
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PrimaryForm.Instance.syncPauseButton.Visible = false;
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PrimaryForm.Instance.syncPlayButton.Visible = false;
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PrimaryForm.Instance.syncVolumeUpButton.Visible = false;
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PrimaryForm.Instance.syncVolumeDownButton.Visible = false;
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PrimaryForm.Instance.syncMicUpButton.Visible = false;
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PrimaryForm.Instance.syncMicDownButton.Visible = false;
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PrimaryForm.Instance.syncCloseButton.Visible = false;
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IsSyncToPrimaryMonitor = false;
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}
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catch (Exception ex)
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{
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Console.WriteLine(String.Format("Error closing primary screen panel: {0}", ex.Message));
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MessageBox.Show(String.Format("Error closing primary screen panel: {0}", ex.Message));
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}
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}
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[DllImport("gdi32.dll", ExactSpelling = true)]
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public static extern bool BitBlt(IntPtr hdcDest, int nXDest, int nYDest, int nWidth, int nHeight,
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IntPtr hdcSrc, int nXSrc, int nYSrc, TernaryRasterOperations dwRop);
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public enum TernaryRasterOperations : uint
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{
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SRCCOPY = 0x00CC0020,
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}
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private void DisplayBarrageOnOverlay(string text)
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{
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if (overlayForm.InvokeRequired)
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overlayForm.Invoke(new System.Action(() => overlayForm.DisplayBarrage(text)));
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else
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overlayForm.DisplayBarrage(text);
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}
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public async Task PlayNextSong()
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{
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// 等待初始化完成（例如播放器、串口等資源尚未就緒時）
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Console.WriteLine("開始播放下一首歌曲...");
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var songToPlay = SongList.Next();
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if (!songToPlay.isPublicSong)
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{
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// 若是使用者點播模式，先送出升Key的串口指令
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if (SerialPortManager.mySerialPort != null && SerialPortManager.mySerialPort.IsOpen)
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{
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byte[] commandBytesIncreasePitch1 = new byte[] { 0xA2, 0x7F, 0xA4 };
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SerialPortManager.mySerialPort.Write(commandBytesIncreasePitch1, 0, commandBytesIncreasePitch1.Length);
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}
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}
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// 更新畫面上顯示的下一首歌資訊
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SongList.UpdateNextSongLabel();
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// 顯示 QRCode（可能是點歌頁用）
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overlayForm.DisplayQRCodeOnOverlay(HttpServer.randomFolderPath);
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// 隱藏「暫停中」標籤
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overlayForm.HidePauseLabel();
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await _InitializeAndPlayMedia(songToPlay);
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}
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public async Task ReplayCurrentSong() =>await _InitializeAndPlayMedia(SongList.Current());
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private async Task _InitializeAndPlayMedia(SongData song)
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{
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try
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{
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if (InvokeRequired)
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{
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await InvokeAsync(() => InitializeAndPlayMedia(song));
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}
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else
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{
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await InitializeAndPlayMedia(song);
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine($"播放時發生錯誤: {ex.Message}");
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await RetryInitializeAndPlayMedia(song);
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}
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}
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private async Task RetryInitializeAndPlayMedia(SongData song)
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{
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try
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{
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int hr = CoInitializeEx(IntPtr.Zero, COINIT.APARTMENTTHREADED);
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if (hr >= 0)
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{
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await InitializeAndPlayMedia(song);
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}
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else
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{
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Console.WriteLine("CoInitializeEx 失敗，無法重新初始化 COM。");
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}
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}
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catch (Exception retryEx)
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{
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Console.WriteLine($"重試播放時發生錯誤: {retryEx.Message}");
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}
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}
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// 通用的 async invoke 方法（避免重複寫）
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private Task InvokeAsync(Func<Task> func)
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{
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var tcs = new TaskCompletionSource<bool>();
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BeginInvoke(async () =>
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{
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try
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{
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await func();
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tcs.SetResult(true);
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}
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catch (Exception ex)
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{
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tcs.SetException(ex);
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}
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});
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return tcs.Task;
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}
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private Task InitializeAndPlayMedia(SongData song)
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{
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string pathToPlay = song.getFile();
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// 渲染媒體文件
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secondary.LoadMedia(pathToPlay,song.isPublicSong ? 0 : 1);
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secondary.Mute(isMuted);
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secondary.PlayAsync();
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// 音量處理
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//SetVolume(isMuted ? 0 : previousVolume);
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SetVolume(100+song.getBasic().getDbChange());
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if (isSyncToPrimaryMonitor) SyncToPrimaryMonitor();
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return Task.CompletedTask;
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}
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private void InitializeOverlayForm(Screen secondaryScreen)
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{
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overlayForm = new OverlayForm();
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Screen secondMonitor = ScreenHelper.GetSecondMonitor();
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if (secondMonitor != null)
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{
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overlayForm.Location = secondMonitor.WorkingArea.Location;
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overlayForm.StartPosition = FormStartPosition.Manual;
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overlayForm.Size = new Size(secondMonitor.WorkingArea.Width, secondMonitor.WorkingArea.Height);
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}
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overlayForm.ShowInTaskbar = false;
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overlayForm.Owner = this;
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overlayForm.Show();
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this.Focus();
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}
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public void MonitorMediaEvents()
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{
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Task.Run(async () =>
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{
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await Task.Delay(10000);
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Console.WriteLine("開始監聽媒體事件...");
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while (true)
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{
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try
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{
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if (secondary.IsAtEnd())
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{
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BeginInvoke(new Action(async () =>
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{
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await PlayNextSong();
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}));
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine($"監控媒體事件時發生錯誤: {ex.Message}");
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await Task.Delay(1000);
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}
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await Task.Delay(1000);
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}
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});
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}
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public void BringOverlayToFront()
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{
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if (overlayForm != null)
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{
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if (!overlayForm.Visible)
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{
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overlayForm.Show();
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}
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overlayForm.BringToFront();
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overlayForm.TopMost = true;
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}
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}
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public void Play()
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{
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secondary.Play();
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isPaused = false;
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OverlayForm.MainForm.HidePauseLabel();
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}
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public void Stop()
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{
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secondary.Stop();
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}
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public void Pause()
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{
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secondary.Pause();
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isPaused = true;
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OverlayForm.MainForm.ShowPauseLabel();
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}
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public void PauseOrResumeSong()
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{
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if (isPaused)
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{
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Play();
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PrimaryForm.Instance.pauseButton.Visible = true;
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PrimaryForm.Instance.playButton.Visible = false;
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PrimaryForm.Instance.syncPauseButton.Visible = true;
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PrimaryForm.Instance.syncPlayButton.Visible = false;
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}
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else
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{
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Pause();
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PrimaryForm.Instance.pauseButton.Visible = false;
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PrimaryForm.Instance.playButton.Visible = true;
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PrimaryForm.Instance.syncPauseButton.Visible = false;
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PrimaryForm.Instance.syncPlayButton.Visible = true;
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OverlayForm.MainForm.ShowPauseLabel();
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}
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}
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private void UpdateSyncButtons()
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{
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if (isPaused)
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{
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PrimaryForm.Instance.syncPlayButton.Visible = true;
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PrimaryForm.Instance.syncPauseButton.Visible = false;
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}
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else
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{
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PrimaryForm.Instance.syncPlayButton.Visible = false;
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PrimaryForm.Instance.syncPauseButton.Visible = true;
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}
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}
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public bool Mute(bool isMuted)
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{
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return secondary.Mute(isMuted);
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}
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public void SetVolume(int volume)
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{
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Console.WriteLine($"SetVolume: {volume}");
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secondary.SetVolume(volume);
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}
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public int GetVolume()
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{
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return secondary.GetVolume();
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}
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private bool isVocalRemoved = false;
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public void ToggleVocalRemoval()
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{
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isVocalRemoved=!isVocalRemoved;
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int trackIndex = isVocalRemoved ? 1:0;
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secondary.SetAudioTrackToAsync(trackIndex);
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OverlayForm.MainForm.ShowTopRightLabelTime(isVocalRemoved ? "無人聲" : "有人聲");
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}
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}
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}
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