CONTEXT_MODEL_SAO_MERGE_FLAG  337 libde265/contextmodel.cc   init_context(QPY, cm+CONTEXT_MODEL_SAO_MERGE_FLAG,                      &initValue_sao_merge_leftUp_flag[initType],    1);
CONTEXT_MODEL_SAO_MERGE_FLAG   46 libde265/contextmodel.h   CONTEXT_MODEL_SAO_TYPE_IDX   = CONTEXT_MODEL_SAO_MERGE_FLAG +1,
CONTEXT_MODEL_SAO_MERGE_FLAG 1541 libde265/slice.cc                              &tctx->ctx_model[CONTEXT_MODEL_SAO_MERGE_FLAG]);