Add kernel_size to FmtConv

vskernels/kernels/fmtconv.py

@@ -1,12 +1,13 @@
 from __future__ import annotations
 
+from math import ceil
 from typing import Any, Callable, overload
 
 from vstools import VideoFormatT, VSFunction, core, inject_self, vs
 
 from .abstract import Resampler
-from .complex import ComplexScaler
 from .bicubic import Bicubic
+from .complex import ComplexScaler
 
 __all__ = [
     'FmtConv'
@@ -167,3 +168,12 @@ def _shift(shift_top: float | list[float] = 0.0, shift_left: float | list[float]
                 shifts_left = shifts_left[:n_planes]
 
         return _shift(shifts_top, shifts_left)
+
+    @inject_self.property
+    def kernel_size(self) -> int:
+        taps_hv = self.kwargs.get('taps_h', self.kwargs.get('taps_v', None))
+
+        if taps_hv is None:
+            taps_hv = self.taps
+
+        return ceil(self.taps)

vskernels/kernels/spline.py

@@ -1,6 +1,5 @@
 from __future__ import annotations
 
-from math import ceil
 from typing import Any
 
 from vstools import core, inject_self
@@ -24,10 +23,6 @@ class Spline(FmtConv):
     def __init__(self, taps: float = 2, **kwargs: Any) -> None:
         super().__init__(taps=taps, **kwargs)
 
-    @inject_self.property
-    def kernel_size(self) -> int:
-        return ceil(self.taps)
-
 
 class Spline16(ZimgComplexKernel):
     """