text: /*M///////////////////////////////////////////////////////////////////////////////////////
  //
  //  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
  //
  //  By downloading, copying, installing or using the software you agree to this license.
  //  If you do not agree to this license, do not download, install,
  //  copy or use the software.
  //
  //
  //                        Intel License Agreement
  //
  // Copyright (C) 2000, Intel Corporation, all rights reserved.
  // Third party copyrights are property of their respective owners.
  //
  // Redistribution and use in source and binary forms, with or without modification,
  // are permitted provided that the following conditions are met:
  //
  //   * Redistribution's of source code must retain the above copyright notice,
  //     this list of conditions and the following disclaimer.
  //
  //   * Redistribution's in binary form must reproduce the above copyright notice,
  //     this list of conditions and the following disclaimer in the documentation
  //     and/or other materials provided with the distribution.
  //
  //   * The name of Intel Corporation may not be used to endorse or promote products
  //     derived from this software without specific prior written permission.
  //
  // This software is provided by the copyright holders and contributors "as is" and
  // any express or implied warranties, including, but not limited to, the implied
  // warranties of merchantability and fitness for a particular purpose are disclaimed.
  // In no event shall the Intel Corporation or contributors be liable for any direct,
  // indirect, incidental, special, exemplary, or consequential damages
  // (including, but not limited to, procurement of substitute goods or services;
  // loss of use, data, or profits; or business interruption) however caused
  // and on any theory of liability, whether in contract, strict liability,
  // or tort (including negligence or otherwise) arising in any way out of
  // the use of this software, even if advised of the possibility of such damage.
  //
  //M*/
  
  #include "_cvaux.h"
  
  /*======================= FILTER LIST SHELL =====================*/
  typedef struct DefBlobFilter
  {
      CvBlob                  blob;
      CvBlobTrackPostProcOne* pFilter;
      int                     m_LastFrame;
  } DefBlobFilter;
  
  class CvBlobTrackPostProcList : public CvBlobTrackPostProc
  {
  protected:
      CvBlobTrackPostProcOne* (*m_CreatePostProc)();
      CvBlobSeq               m_BlobFilterList;
      int                     m_Frame;
  
  public:
      CvBlobTrackPostProcList(CvBlobTrackPostProcOne* (*create)()):m_BlobFilterList(sizeof(DefBlobFilter))
      {
          m_Frame = 0;
          m_CreatePostProc = create;
          CvBlobTrackPostProcOne* pM = create();
          TransferParamsFromChild(pM,NULL);
          pM->Release();
      }
  
     ~CvBlobTrackPostProcList()
      {
          int i;
          for(i=m_BlobFilterList.GetBlobNum();i>0;--i)
          {
              DefBlobFilter* pF = (DefBlobFilter*)m_BlobFilterList.GetBlob(i-1);
              pF->pFilter->Release();
          }
      };
  
      virtual void    AddBlob(CvBlob* pBlob)
      {
          DefBlobFilter* pF = (DefBlobFilter*)m_BlobFilterList.GetBlobByID(CV_BLOB_ID(pBlob));
          if(pF == NULL)
          {   /* Create new filter: */
              DefBlobFilter F;
              F.blob = pBlob[0];
              F.m_LastFrame = m_Frame;
              F.pFilter = m_CreatePostProc();
              TransferParamsToChild(F.pFilter,NULL);
              m_BlobFilterList.AddBlob((CvBlob*)&F);
              pF = (DefBlobFilter*)m_BlobFilterList.GetBlobByID(CV_BLOB_ID(pBlob));
          }
  
          assert(pF);
          pF->blob = pBlob[0];
          pF->m_LastFrame = m_Frame;
      };
  
      virtual void    Process()
      {
          int i;
          for(i=m_BlobFilterList.GetBlobNum(); i>0; --i)
          {
              DefBlobFilter* pF = (DefBlobFilter*)m_BlobFilterList.GetBlob(i-1);
  
              if(pF->m_LastFrame == m_Frame)
              {   /* Process: */
                  int ID = CV_BLOB_ID(pF);
                  pF->blob = *(pF->pFilter->Process(&(pF->blob)));
                  CV_BLOB_ID(pF) = ID;
              }
              else
              {   /* Delete blob filter: */
                  pF->pFilter->Release();
                  m_BlobFilterList.DelBlob(i-1);
              }
          }   /* Next blob. */
          m_Frame++;
      };
  
      int     GetBlobNum(){return m_BlobFilterList.GetBlobNum();};
      CvBlob* GetBlob(int index){return m_BlobFilterList.GetBlob(index);};
      void    Release(){delete this;};
  
      /* Additional functionality: */
      CvBlob* GetBlobByID(int BlobID){return m_BlobFilterList.GetBlobByID(BlobID);}
  
  };  /* CvBlobTrackPostProcList */
  
  CvBlobTrackPostProc* cvCreateBlobTrackPostProcList(CvBlobTrackPostProcOne* (*create)())
  {
      return (CvBlobTrackPostProc*) new CvBlobTrackPostProcList(create);
  }
  /*======================= FILTER LIST SHELL =====================*/
  