readded mpv vapoursynth filter after renaming, whoopsie

.config/mpv/filters/motioninterpolation-mvtools.vpy

@@ -0,0 +1,45 @@
+# vim: set ft=python:
+
+import vapoursynth as vs
+
+core = vs.core
+core.std.LoadPlugin(
+    path="/usr/lib/python3.14/site-packages/vapoursynth/plugins/mvtools.so"
+)
+clip = video_in
+
+dst_fps = display_fps
+# Interpolating to fps higher than 60 is too CPU-expensive, smoothmotion can handle the rest.
+while dst_fps > 60:
+    dst_fps = 60
+
+dst_fps = 144
+
+# Skip interpolation for > 4K or 60 Hz content due to performance
+if not (clip.width > 3840 or clip.height > 2160 or container_fps > 59):
+    src_fps_num = int(container_fps * 1e8)
+    src_fps_den = int(1e8)
+    dst_fps_num = int(dst_fps * 1e4)
+    dst_fps_den = int(1e4)
+    # Needed because clip FPS is missing
+    clip = core.std.AssumeFPS(clip, fpsnum=src_fps_num, fpsden=src_fps_den)
+    print(
+        "Reflowing from ",
+        src_fps_num / src_fps_den,
+        " fps to ",
+        dst_fps_num / dst_fps_den,
+        " fps.",
+    )
+
+    sup = core.mv.Super(clip, pel=2, hpad=16, vpad=16)
+    bvec = core.mv.Analyse(
+        sup, blksize=16, isb=True, chroma=True, search=3, searchparam=1
+    )
+    fvec = core.mv.Analyse(
+        sup, blksize=16, isb=False, chroma=True, search=3, searchparam=1
+    )
+    clip = core.mv.BlockFPS(
+        clip, sup, bvec, fvec, num=dst_fps_num, den=dst_fps_den, mode=3, thscd2=12
+    )
+
+clip.set_output()