Upload calculate_framewindow.py

calculate_framewindow.py

@@ -0,0 +1,46 @@
+import math
+
+class Calculate_Framewindow:
+    """
+    Computes: floor((length * float(framerate)) + 1)
+    """
+
+    @classmethod
+    def INPUT_TYPES(cls):
+        return {
+            "required": {
+                "length": ("FLOAT", {
+                    "default": 1.0,
+                    "min": 0.0,
+                    "max": 1.0e9,
+                    "step": 0.001,
+                }),
+                "framerate": ("INT", {
+                    "default": 24,
+                    "min": 1,
+                    "max": 1000000,
+                    "step": 1,
+                }),
+            }
+        }
+
+    RETURN_TYPES = ("INT",)
+    RETURN_NAMES = ("result",)
+
+    FUNCTION = "compute"
+    CATEGORY = "math"
+
+    def compute(self, length: float, framerate: int):
+        framerate_f = float(framerate)  # explicit internal conversion as requested
+        value = (length * framerate_f) + 1.0
+        result = int(math.floor(value))  # round down
+        return (result,)
+
+
+NODE_CLASS_MAPPINGS = {
+    "Calculate_Framewindow": Calculate_Framewindow
+}
+
+NODE_DISPLAY_NAME_MAPPINGS = {
+    "Calculate_Framewindow": "Calculate_Framewindow"
+}