HEVC 常用之 类TComDataCU分析

为了找到合适的模式或者合适的分割, 基本上都是采用两个TComDataCU来操作, TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU.

相当于两个指针对应两个乒乓buffer,  m_ppcBestCU[uiDepth], m_ppcTempCU[uiDepth], 当然每一个uiDepth都有一个对应的BestCU和TempCU的buffer.

 

class TComDataCU{private:    // -------------------------------------------------------  // class pointers  // -------------------------------------------------------  TComPic*      m_pcPic;              ///< picture class pointer  TComSlice*    m_pcSlice;            ///< slice header pointer  TComPattern*  m_pcPattern;          ///< neighbour access class pointer  // -------------------------------------------------------  // CU description  // -------------------------------------------------------  UInt          m_uiCUAddr;           ///< CU address in a slice  UInt          m_uiAbsIdxInLCU;      ///< absolute address in a CU. It's Z scan order  UInt          m_uiCUPelX;           ///< CU position in a pixel (X)  UInt          m_uiCUPelY;           ///< CU position in a pixel (Y)  UInt          m_uiNumPartition;     ///< total number of minimum partitions in a CU  UChar*        m_puhWidth;           ///< array of widths  UChar*        m_puhHeight;          ///< array of heights  UChar*        m_puhDepth;           ///< array of depths  Int           m_unitSize;           ///< size of a "minimum partition"  // -------------------------------------------------------  // CU data  // -------------------------------------------------------  Bool*         m_skipFlag;           ///< array of skip flags  Char*         m_pePartSize;         ///< array of partition sizes  Char*         m_pePredMode;         ///< array of prediction modes  Bool*         m_CUTransquantBypass;   ///< array of cu_transquant_bypass flags  Char*         m_phQP;               ///< array of QP values  UChar*        m_puhTrIdx;           ///< array of transform indices  UChar*        m_puhTransformSkip[3];///< array of transform skipping flags  UChar*        m_puhCbf[3];          ///< array of coded block flags (CBF)  TComCUMvField m_acCUMvField[2];     ///< array of motion vectors  TCoeff*       m_pcTrCoeffY;         ///< transformed coefficient buffer (Y)  TCoeff*       m_pcTrCoeffCb;        ///< transformed coefficient buffer (Cb)  TCoeff*       m_pcTrCoeffCr;        ///< transformed coefficient buffer (Cr)#if ADAPTIVE_QP_SELECTION  Int*          m_pcArlCoeffY;        ///< ARL coefficient buffer (Y)  Int*          m_pcArlCoeffCb;       ///< ARL coefficient buffer (Cb)  Int*          m_pcArlCoeffCr;       ///< ARL coefficient buffer (Cr)  bool          m_ArlCoeffIsAliasedAllocation; ///< ARL coefficient buffer is an alias of the global buffer and must not be free()'d  static Int*   m_pcGlbArlCoeffY;     ///< ARL coefficient buffer (Y)  static Int*   m_pcGlbArlCoeffCb;    ///< ARL coefficient buffer (Cb)  static Int*   m_pcGlbArlCoeffCr;    ///< ARL coefficient buffer (Cr)#endif  Pel*          m_pcIPCMSampleY;      ///< PCM sample buffer (Y)  Pel*          m_pcIPCMSampleCb;     ///< PCM sample buffer (Cb)  Pel*          m_pcIPCMSampleCr;     ///< PCM sample buffer (Cr)  Int*          m_piSliceSUMap;       ///< pointer of slice ID map  std::vector<NDBFBlockInfo> m_vNDFBlock; ..................  .............}

 其实就是HM中该类代码粘了过来。

来源： <http://blog.csdn.net/feixiang_john/article/details/8237160>

 原文名：分析HM代码,首先必须把class TComDataCU完全搞明白!