73 lines
2.2 KiB
C#
73 lines
2.2 KiB
C#
using System.Runtime.InteropServices;
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namespace SHH.CameraSdk;
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/// <summary>
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/// 大华 PlaySDK 核心接口封装 (play.dll)
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/// </summary>
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public static class DahuaPlaySDK
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{
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private const string DLL_PATH = "Drivers\\Dahua\\play.dll";
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// 解码回调委托
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public delegate void DECCBFUN(int nPort, IntPtr pBuf, int nSize, ref FRAME_INFO pFrameInfo, IntPtr nUser, int nReserved2);
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[StructLayout(LayoutKind.Sequential)]
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public struct FRAME_INFO
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{
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public int nWidth;
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public int nHeight;
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public int nStamp;
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public int nType;
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public int nFrameRate;
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public uint dwFrameNum;
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}
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[DllImport(DLL_PATH)]
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public static extern bool PLAY_GetFreePort(ref int plPort);
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[DllImport(DLL_PATH)]
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public static extern bool PLAY_ReleasePort(int nPort);
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[DllImport(DLL_PATH)]
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public static extern bool PLAY_OpenStream(int nPort, IntPtr pFileHead, uint nSize, uint nBufPoolSize);
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[DllImport(DLL_PATH)]
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public static extern bool PLAY_CloseStream(int nPort);
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[DllImport(DLL_PATH)]
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public static extern bool PLAY_Play(int nPort, IntPtr hWnd);
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[DllImport(DLL_PATH)]
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public static extern bool PLAY_Stop(int nPort);
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[DllImport(DLL_PATH)]
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public static extern bool PLAY_InputData(int nPort, IntPtr pBuf, uint nSize);
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[DllImport(DLL_PATH)]
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public static extern bool PLAY_SetDecCallBack(int nPort, DECCBFUN DecCBFun);
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[DllImport(DLL_PATH)]
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public static extern bool PLAY_SetStreamOpenMode(int nPort, uint nMode);
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// 解码模式枚举
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public enum DecodeType
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{
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DECODE_SW = 1, // 软解 (CPU)
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DECODE_HW = 2, // 硬解拷贝模式 (GPU解码后拷贝回内存)
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DECODE_HW_FAST = 3, // 硬解直接显示模式 (GPU解码直接渲染，最高性能)
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DECODE_HW_NV_CUDA = 7, // 英伟达显卡 CUDA 硬解 (Ayay 推荐，多路并发最强)
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DECODE_HW_D3D11 = 8 // D3D11 硬解
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}
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// 渲染模式枚举
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public enum RenderType
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{
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RENDER_GDI = 1,
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RENDER_D3D9 = 4,
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RENDER_D3D11 = 7
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}
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[DllImport(DLL_PATH, EntryPoint = "PLAY_SetEngine")]
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public static extern bool PLAY_SetEngine(int nPort, DecodeType decodeType, RenderType renderType);
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} |