入口函数：TEncSbac::resetEntropy：
这个函数的本质就是初始化各种高低文
// 重置熵编码器
Void TEncSbac::resetEntropy ()
{
Int iQp = m_pcSlice->getSliceQp();
SliceType eSliceType = m_pcSlice->getSliceType();
Int encCABACTableIdx = m_pcSlice->getPPS()->getEncCABACTableIdx();
if (!m_pcSlice->isIntra() && (encCABACTableIdx==B_SLICE || encCABACTableIdx==P_SLICE) && m_pcSlice->getPPS()->getCabacInitPresentFlag())
{
eSliceType = (SliceType) encCABACTableIdx;
}
// 初始化各个模型的缓存
// split标记的高低文
m_cCUSplitFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SPLIT_FLAG );
// skip标记的高低文
m_cCUSkipFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SKIP_FLAG );
// merge标记高低文
m_cCUMergeFlagExtSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MERGE_FLAG_EXT);
// merge索引高低文
m_cCUMergeIdxExtSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MERGE_IDX_EXT);
// partsize高低文
m_cCUPartSizeSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_PART_SIZE );
// 预测高低文
m_cCUPredModeSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_PRED_MODE );
// 帧内预测高低文
m_cCUIntraPredSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_INTRA_PRED_MODE );
// 色度预测高低文
m_cCUChromaPredSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_CHROMA_PRED_MODE );
// 帧间预测角度高低文
m_cCUInterDirSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_INTER_DIR );
// MV残差高低文
m_cCUMvdSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MVD );
// 参考帧高低文
m_cCURefPicSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_REF_PIC );
// 量化步长高低文
m_cCUDeltaQpSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_DQP );
// CBF高低文
m_cCUQtCbfSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_QT_CBF );
// 四叉树根的CBF高低文
m_cCUQtRootCbfSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_QT_ROOT_CBF );
// 系数的符号高低文
m_cCUSigCoeffGroupSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SIG_CG_FLAG );
// 符号高低文
m_cCUSigSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SIG_FLAG );
// 最后一个X高低文
m_cCuCtxLastX.initBuffer ( eSliceType, iQp, (UChar*)INIT_LAST );
// 最后一个Y高低文
m_cCuCtxLastY.initBuffer ( eSliceType, iQp, (UChar*)INIT_LAST );
m_cCUOneSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ONE_FLAG );
// CU绝对索引？高低文
m_cCUAbsSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ABS_FLAG );
// MVP索引高低文
m_cMVPIdxSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MVP_IDX );
// TU划分标记高低文
m_cCUTransSubdivFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_TRANS_SUBDIV_FLAG );
// SAO merge高低文
m_cSaoMergeSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SAO_MERGE_FLAG );
// SAO类型索引高低文
m_cSaoTypeIdxSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SAO_TYPE_IDX );
// 变换skip标记高低文
m_cTransformSkipSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_TRANSFORMSKIP_FLAG );
// 变换量化bypass标记高低文
m_CUTransquantBypassFlagSCModel.initBuffer( eSliceType, iQp, (UChar*)INIT_CU_TRANSQUANT_BYPASS_FLAG );
// new structure
m_uiLastQp = iQp;
// 二值化的一些操作
m_pcBinIf->start();
return;
}// 
