chore: import upstream snapshot with attribution

tests/python/shared/tasks/utils.py

@@ -0,0 +1,23 @@
+# Copyright (C) CVAT.ai Corporation
+#
+# SPDX-License-Identifier: MIT
+
+
+from collections.abc import Iterable
+
+
+def parse_frame_step(frame_filter: str) -> int:
+    return int((frame_filter or "step=1").split("=")[1])
+
+
+def to_rel_frame(abs_frame: int, *, frame_step: int, task_start_frame: int) -> int:
+    return (abs_frame - task_start_frame) // frame_step
+
+
+def to_rel_frames(
+    abs_frames: Iterable[int], *, frame_step: int, task_start_frame: int
+) -> list[int]:
+    return [
+        to_rel_frame(f, frame_step=frame_step, task_start_frame=task_start_frame)
+        for f in abs_frames
+    ]