视频监控 封装[PlayCtrl.dll]的API (1)

     ///   <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

本文转自over140 51CTO博客，原文链接：http://blog.51cto.com/over140/586610，如需转载请自行联系原作者