CONTEXT_MODEL_CODED_SUB_BLOCK_FLAG 116 libde265/slice.h CONTEXT_MODEL_CODED_SUB_BLOCK_FLAG = CONTEXT_MODEL_LAST_SIGNIFICANT_COEFFICIENT_Y_PREFIX + 18, CONTEXT_MODEL_CODED_SUB_BLOCK_FLAG 117 libde265/slice.h CONTEXT_MODEL_SIGNIFICANT_COEFF_FLAG = CONTEXT_MODEL_CODED_SUB_BLOCK_FLAG + 4,