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import shutil
from pathlib import Path
def check_path(file_path: str | Path) -> None:
"""Raise an error if the parent directory does not exist."""
file_path = Path(file_path)
if not file_path.parent.exists():
try:
file_path.parent.mkdir(parents=True, exist_ok=True)
except OSError as e:
raise ValueError(
f"Failed to create parent directory {file_path.parent}: {e}"
)
def check_ffmpeg_installed() -> None:
"""Raise an error if ffmpeg is not available on the system PATH."""
if shutil.which("ffmpeg") is None:
raise RuntimeError(
"ffmpeg is required to write video but was not found on your system. "
"Please install ffmpeg and ensure it is available on your PATH."
)
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