CONTEXT_MODEL_MERGE_IDX 1898 libde265/slice.cc                              &tctx->ctx_model[CONTEXT_MODEL_MERGE_IDX]);
CONTEXT_MODEL_MERGE_IDX 2032 libde265/slice.cc     init_context(tctx, CONTEXT_MODEL_MERGE_IDX,              &initValue_merge_idx[initType-1], 1);