| """Shared manifest I/O and participant identity for data preparation.""" |
| import json |
| from pathlib import Path |
| import re |
|
|
| SPEAKER = re.compile(r"(?:^|_)P([^_/.]+)", re.IGNORECASE) |
|
|
|
|
| def normalize_speaker_id(value): |
| return str(value).strip().upper().removeprefix("P") |
|
|
|
|
| def infer_speaker_id(sample): |
| for key in ("speaker_id", "speaker", "person_id"): |
| if sample.get(key) is not None and str(sample[key]).strip(): |
| return normalize_speaker_id(sample[key]) |
| for key in ("audio_file", "pose_file"): |
| match = SPEAKER.search(Path(sample.get(key, "")).name) |
| if match: |
| return normalize_speaker_id(match[1]) |
| raise ValueError("Recording has no participant identity") |
|
|
|
|
| def load_manifest(path): |
| value = json.loads(Path(path).read_text()) |
| rows = value["data"] if isinstance(value, dict) else value |
| assert isinstance(rows, list) and all(isinstance(row, dict) for row in rows) |
| return rows, value if isinstance(value, dict) else None |
|
|
|
|
| def write_manifest(path, rows, original=None, **metadata): |
| value = {**original, "data": rows, **metadata} if original is not None else rows |
| output = Path(path) |
| output.parent.mkdir(parents=True, exist_ok=True) |
| output.write_text(json.dumps(value, indent=2, ensure_ascii=False) + "\n") |
|
|
