视频监控 封装[PlayCtrl.dll]的API

     ///   <summary>
     ///  播放器
     ///   </summary>
     public   sealed   class  HikPlayer
    {
         #region  Const Member Variables
         //  #define WINVER 
         //  0x0700 Windows 7
         //  0x0600 Windows Vista
         //  0x0502 Windows 2003 Server
         //  0x0410 Windows XP
         // <0x0400 Windows 98/Windows 2000
         public   static   readonly   int  WINVER  =   0x0502 ;

         public   static   readonly   uint  WM_USER  =   0x0400 ;
         public   static   readonly   uint  WM_FILE_END  =  WM_USER  +   33 ;
         public   static   readonly   uint  WM_ENC_CHANGE  =  WM_USER  +   100 ;
        
         public   static   readonly   int  COLOR_DEFAULT  =   64 ;
         public   static   readonly   int  PLAYER_SLIDER_MAX  =   200 ;
         public   static   readonly   int  MAX_DISPLAY_DEVICE  =   4 ;

         public   static   readonly   int  WIDTH_PAL  =   352 ;
         public   static   readonly   int  HEIGHT_PAL  =   288 ;

         #region  Source buffer
         // #define SOURCE_BUF_MAX
         public   static   readonly   uint  SOURCE_BUF_MAX  =   1024   *   100000 ;
         // #define SOURCE_BUF_MIN    1024*50
         public   static   readonly   uint  SOURCE_BUF_MIN  =   1024   *   50 ;
         #endregion

         #region  Frame type
         ///   <summary>
         ///  音频数据;采样率16khz，单声道，每个采样点16位表示。
         ///   </summary>
         public   static   readonly   int  T_AUDIO16  =   101 ;
         public   static   readonly   int  T_AUDIO8  =   100 ;

         ///   <summary>
         ///  视频数据，uyvy格式。“U0-Y0-V0-Y1-U2-Y2-V2-Y3….”，第一个像素位于图像左上角。 
         ///   </summary>
         public   static   readonly   int  T_UYVY  =   1 ;
         ///   <summary>
         ///  视频数据，yv12格式。排列顺序“Y0-Y1-……”，“V0-V1….”，“U0-U1-…..”。 
         ///   </summary>
         public   static   readonly   int  T_YV12  =   3 ;
         ///   <summary>
         ///  视频数据。每个像素4个字节，排列方式与位图相似，“B-G-R-0 ……”，第一个像素位于图像左下角。 
         ///   </summary>
         public   static   readonly   int  T_RGB32  =   7 ;
         #endregion

         #region  Stream type
         ///   <summary>
         ///  实时模式，适合播放网络实时数据，解码器会立刻解码。
         ///   </summary>
         public   static   readonly   int  STREAME_REALTIME  =   0 ;
         ///   <summary>
         ///  文件模式，适合用户把文件数据用流方式输入。
         ///  注意：当PlayM4_InputData()返回FALSE时，用户要等一下重新输入。
         ///   </summary>
         public   static   readonly   int  STREAME_FILE  =   1 ;
         #endregion

         #region  Error code
         ///   <summary>
         ///  没有错误
         ///  no error
         ///   </summary>
         public   static   readonly   int  PlayM4_NOERROR  =   0 ;
         ///   <summary>
         ///  输入参数非法
         ///  input parameter is invalid;
         ///   </summary>
         public   static   readonly   int  PlayM4_PARA_OVER  =   1 ;
         ///   <summary>
         ///  调用顺序不对
         ///  The order of the function to be called is error.
         ///   </summary>
         public   static   readonly   int  PlayM4_ORDER_ERROR  =   2 ;
         ///   <summary>
         ///  多媒体时钟设置失败
         ///  Create multimedia clock failed;
         ///   </summary>
         public   static   readonly   int  PlayM4_TIMER_ERROR  =   3 ;
         ///   <summary>
         ///  视频解码失败
         ///  Decode video data failed.
         ///   </summary>
         public   static   readonly   int  PlayM4_DEC_VIDEO_ERROR  =   4 ;
         ///   <summary>
         ///  音频解码失败
         ///  Decode audio data failed.
         ///   </summary>
         public   static   readonly   int  PlayM4_DEC_AUDIO_ERROR  =   5 ;
         ///   <summary>
         ///  分配内存失败
         ///  Allocate memory failed.
         ///   </summary>
         public   static   readonly   int  PlayM4_ALLOC_MEMORY_ERROR  =   6 ;
         ///   <summary>
         ///  文件操作失败
         ///  Open the file failed.
         ///   </summary>
         public   static   readonly   int  PlayM4_OPEN_FILE_ERROR  =   7 ;
         ///   <summary>
         ///  创建线程事件等失败
         ///  Create thread or event failed.
         ///   </summary>
         public   static   readonly   int  PlayM4_CREATE_OBJ_ERROR  =   8 ;
         ///   <summary>
         ///  创建DirectDraw失败
         ///  Create DirectDraw object failed.
         ///   </summary>
         public   static   readonly   int  PlayM4_CREATE_DDRAW_ERROR  =   9 ;
         ///   <summary>
         ///  创建后端缓存失败
         ///  Failed when creating off-screen surface.
         ///   </summary>
         public   static   readonly   int  PlayM4_CREATE_OFFSCREEN_ERROR  =   10 ;
         ///   <summary>
         ///  缓冲区满，输入流失败
         ///  Buffer is overflow.
         ///   </summary>
         public   static   readonly   int  PlayM4_BUF_OVER  =   11 ;
         ///   <summary>
         ///  创建音频设备失败
         ///  Failed when creating audio device.
         ///   </summary>
         public   static   readonly   int  PlayM4_CREATE_SOUND_ERROR  =   12 ;
         ///   <summary>
         ///  设置音量失败
         ///  Set volume failed.
         ///   </summary>
         public   static   readonly   int  PlayM4_SET_VOLUME_ERROR  =   13 ;
         ///   <summary>
         ///  只能在播放文件时才能使用此接口
         ///  The function only support play file.
         ///   </summary>
         public   static   readonly   int  PlayM4_SUPPORT_FILE_ONLY  =   14 ;
         ///   <summary>
         ///  只能在播放流时才能使用此接口
         ///  The function only support play stream.
         ///   </summary>
         public   static   readonly   int  PlayM4_SUPPORT_STREAM_ONLY  =   15 ;
         ///   <summary>
         ///  系统不支持，解码器只能工作在Pentium 3以上
         ///  System not support.
         ///   </summary>
         public   static   readonly   int  PlayM4_SYS_NOT_SUPPORT  =   16 ;
         ///   <summary>
         ///  没有文件头
         ///  No file header.
         ///   </summary>
         public   static   readonly   int  PlayM4_FILEHEADER_UNKNOWN  =   17 ;
         ///   <summary>
         ///  解码器和编码器版本不对应
         ///  The version of decoder and encoder is not adapted.  
         ///   </summary>
         public   static   readonly   int  PlayM4_VERSION_INCORRECT  =   18 ;
         ///   <summary>
         ///  初始化解码器失败
         ///  Initialize decoder failed.
         ///   </summary>
         public   static   readonly   int  HIK_PALYM4_INIT_DECODER_ERROR  =   19 ;
         ///   <summary>
         ///  文件太短或码流无法识别
         ///  The file data is unknown.
         ///   </summary>
         public   static   readonly   int  PlayM4_CHECK_FILE_ERROR  =   20 ;
         ///   <summary>
         ///  初始化多媒体时钟失败
         ///  Initialize multimedia clock failed.
         ///   </summary>
         public   static   readonly   int  PlayM4_INIT_TIMER_ERROR  =   21 ;
         ///   <summary>
         ///  位拷贝失败
         ///  Blt failed.
         ///   </summary>
         public   static   readonly   int  PlayM4_BLT_ERROR  =   22 ;
         ///   <summary>
         ///  显示Overlay失败
         ///  Update failed.
         ///   </summary>
         public   static   readonly   int  PlayM4_UPDATE_ERROR  =   23 ;
         ///   <summary>
         ///  打开文件错误
         ///  Open file error, stream type is multi.
         ///   </summary>
         public   static   readonly   int  PlayM4_OPEN_FILE_ERROR_MULTI  =   24 ;
         ///   <summary>
         ///  打开文件错误
         ///  Open file error, stream type is video.
         ///   </summary>
         public   static   readonly   int  PlayM4_OPEN_FILE_ERROR_VIDEO  =   25 ;
         ///   <summary>
         ///  JPEG格式压缩错误
         ///  JPEG compress error.
         ///   </summary>
         public   static   readonly   int  PlayM4_JPEG_COMPRESS_ERROR  =   26 ;
         ///   <summary>
         ///  不支持此文件的版本
         ///  Don't support the version of this file.
         ///   </summary>
         public   static   readonly   int  PlayM4_EXTRACT_NOT_SUPPORT  =   27 ;
         ///   <summary>
         ///  提取视频数据失败
         ///  Extract video data failed.
         ///   </summary>
         public   static   readonly   int  PlayM4_EXTRACT_DATA_ERROR  =   28 ;

         #endregion

         #region  Display buffers
         ///   <summary>
         ///  播放缓冲最大值
         ///   </summary>
         public   static   readonly   int  MAX_DIS_FRAMES  =   50 ;
         ///   <summary>
         ///  播放缓冲最小值
         ///   </summary>
         public   static   readonly   int  MIN_DIS_FRAMES  =   6 ;
         #endregion

         #region  Locate by
         ///   <summary>
         ///  帧号
         ///   </summary>
         public   static   readonly   int  BY_FRAMENUM  =   1 ;
         ///   <summary>
         ///  时间
         ///   </summary>
         public   static   readonly   int  BY_FRAMETIME  =   2 ;
         #endregion

         #region  Display type
         ///   <summary>
         ///  正常分辨率数据送显卡显示。
         ///   </summary>
         public   static   readonly   int  DISPLAY_NORMAL  =   1 ;
         ///   <summary>
         ///  1/4分辨率数据送显卡显示。
         ///   </summary>
         public   static   readonly   int  DISPLAY_QUARTER  =   2 ;
         #endregion

         #region  Timer type
         ///   <summary>
         ///  一个进程中只能使用16个，定时比较准，画面流畅。
         ///  Only 16 timers for every process.Default TIMER;
         ///   </summary>
         public   static   readonly   int  TIMER_1  =   1 ;
         ///   <summary>
         ///  使用数目没有限制，定时没有TIMER_1准。
         ///  Not limit;But the precision less than TIMER_1; 
         ///   </summary>
         public   static   readonly   int  TIMER_2  =   2 ;
         #endregion

         #region  BUFFER TYPE
         ///   <summary>
         ///  视频数据源缓冲区，缓冲解码之前视频数据，只对流模式有效，单位byte。
         ///   </summary>
         public   static   readonly   ushort  BUF_VIDEO_SRC  =   1 ;
         ///   <summary>
         ///  音频数据源缓冲区，缓冲解码之前音频数据，只对流模式有效, 单位byte。 
         ///   </summary>
         public   static   readonly   ushort  BUF_AUDIO_SRC  =   2 ;
         ///   <summary>
         ///  解码后视频数据缓冲区，单位帧数。 
         ///   </summary>
         public   static   readonly   ushort  BUF_VIDEO_RENDER  =   3 ;
         ///   <summary>
         ///  解码后音频数据缓冲区，单位帧数，音频40ms数据定为一帧。 
         ///   </summary>
         public   static   readonly   ushort  BUF_AUDIO_RENDER  =   4 ;
         #endregion

         #endregion

         #region  HikPlayer
         ///   <summary>
         ///  1、 BOOL PlayM4_InitDDraw(HWND hWnd);
         ///  初始化DirectDraw表面。在使用vb,delphi开发时请注意，它们生成的对话框具有WS_CLIPCHILDREN
         ///  窗口风格，必须去掉这种风格，否则显示画面会被对话框上的控件覆盖。注意：1.1版以上不需要调用。
         ///   </summary>
         ///   <param name="hWnd"> hWnd 应用程序主窗口的句柄。 </param>
         ///   <returns></returns>
        [DllImport( " PlayCtrl.dll " )]
         public   static   extern   bool  PlayM4_InitDDraw(IntPtr hWnd);

         ///   <summary>
         ///  2、 BOOL PlayM4_RealeseDDraw(); 
         ///  释放directDraw表面；注意：1.1版以上不需要调用。
         ///   </summary>
         ///   <returns></returns>
        [DllImport( " PlayCtrl.dll " )]
         public   static   extern   bool  PlayM4_RealeseDDraw();

         ///   <summary>
         ///  3、 BOOL PlayM4_OpenFile(LONG nPort,LPSTR sFileName); 
         ///  打开播放文件
         ///   </summary>
         ///   <param name="nPort"></param>
         ///   <param name="sFileName"> 文件名，文件不能超过4G或小于4K </param>
         ///   <returns></returns>
        [DllImport( " PlayCtrl.dll " )]
         public   static   extern   bool  PlayM4_OpenFile( int  nPort,  string  sFileName);

         ///   <summary>
         ///  4、 BOOL PlayM4_CloseFile(LONG nPort); 
         ///  关闭播放文件
         ///   </summary>
         ///   <param name="nPort"></param>
         ///   <returns></returns>
        [DllImport( " PlayCtrl.dll " )]
         public   static   extern   bool  PlayM4_CloseFile( int  nPort);

         ///   <summary>
         ///  5、 BOOL PlayM4_Play(LONG nPort, HWND hWnd); 
         ///  播放开始，播放视频画面大小将根据hWnd窗口调整，要全屏显示，只要把hWnd窗口放大到全屏。
         ///  如果已经播放，只是改变当前播放速度为正常速度。 
         ///   </summary>
         ///   <param name="nPort"></param>
         ///   <param name="hWnd"> hWnd 播放视频的窗口句柄 </param>
         ///   <returns></returns>
        [DllImport( " PlayCtrl.dll " )]
         public   static   extern   bool  PlayM4_Play( int  nPort, IntPtr hWnd);

         ///   <summary>
         ///  6、 BOOL PlayM4_Stop(LONG nPort); 
         ///  播放结束
         ///   </summary>
         ///   <param name="nPort"></param>
         ///   <returns></returns>
        [DllImport( " PlayCtrl.dll " )]
         public   static   extern   bool  PlayM4_Stop( int  nPort);

         ///   <summary>
         ///  7、 BOOL PlayM4_Pause(LONG nPort,DWORD nPause); 
         ///  播放暂停/恢复
         ///   </summary>
         ///   <param name="nPort"></param>
         ///   <param name="nPause"> nPause=TRUE暂停，否则恢复 </param>
         ///   <returns></returns>
        [DllImport( " PlayCtrl.dll " )]
         public   static   extern   bool  PlayM4_Pause( int  nPort,  bool  nPause);

         ///   <summary>
         ///  8、 BOOL PlayM4_Fast(LONG nPort); 
         ///  快速播放，每次调用将使当前播放速度加快一倍，最多调用4次；要恢复正常播放调用PlayM4_Play()，
         ///  从当前位置开始正常播放
         ///   </summary>
         ///   <param name="nPort"></param>
         ///   <returns></returns>
        [DllImport( " PlayCtrl.dll " )]
         public   static   extern   bool  PlayM4_Fast( int  nPort);

         ///   <summary>
         ///  9、 BOOL PlayM4_Slow(LONG nPort); 
         ///  慢速播放，每次调用将使当前播放速度慢一倍；最多调用4次；要恢复正常播放调用PlayM4_Play()
         ///   </summary>
         ///   <param name="nPort"></param>
         ///   <returns></returns>
        [DllImport( " PlayCtrl.dll " )]
         public   static   extern   bool  PlayM4_Slow( int  nPort);

         ///   <summary>
         ///  10、BOOL PlayM4_SetPlayPos(LONG nPort,float fRelativePos); 
         ///  设置文件播放指针的相对位置（百分比）。 
         ///   </summary>
         ///   <param name="nPort"></param>
         ///   <param name="fRelativePos"> 范围0-100% </param>
         ///   <returns></returns>
        [DllImport( " PlayCtrl.dll " )]
         public   static   extern   bool  PlayM4_SetPlayPos( int  nPort,  float  fRelativePos);