| |
| |
| import os, shutil |
| from pathlib import Path |
| import pandas as pd |
|
|
| ROOT = Path(__file__).resolve().parents[1] |
| SRC_META = ROOT / "data" / "metadata" / "metadata.csv" |
| SRC_DATA = ROOT / "data" |
| DST = ROOT / "data-mini" |
|
|
| N_TRAIN = 200 |
| N_VALID = 50 |
|
|
| def main(): |
| if not SRC_META.exists(): |
| raise SystemExit(f"Missing: {SRC_META}") |
| df = pd.read_csv(SRC_META) |
| if "wav" not in df.columns or "split" not in df.columns: |
| raise SystemExit("metadata.csv must have 'wav' and 'split' columns") |
|
|
| train = df[df["split"].str.lower()=="train"].sample(min(N_TRAIN, sum(df["split"].str.lower()=="train")), random_state=0) |
| valid = df[df["split"].str.lower()=="valid"] |
| if len(valid)==0: |
| valid = df[df["split"].str.lower()=="train"].drop(train.index).sample(min(N_VALID, len(df)), random_state=0) |
| valid = valid.assign(split="valid") |
|
|
| sub = pd.concat([train, valid], ignore_index=True).copy() |
| if DST.exists(): shutil.rmtree(DST) |
| (DST / "metadata").mkdir(parents=True, exist_ok=True) |
|
|
| copied = 0 |
| for _, r in sub.iterrows(): |
| wav = str(r["wav"]).strip() |
| src = (SRC_DATA / wav) if not os.path.isabs(wav) else Path(wav) |
| if not src.exists(): |
| continue |
| dest = DST / wav |
| dest.parent.mkdir(parents=True, exist_ok=True) |
| shutil.copy2(src, dest) |
| copied += 1 |
|
|
| sub.to_csv(DST / "metadata" / "metadata.csv", index=False) |
| print(f"Copied {copied} files. Wrote {DST / 'metadata' / 'metadata.csv'}") |
|
|
| if __name__ == "__main__": |
| main() |
|
|
