#!/usr/bin/env python3 # -*- coding: utf-8 -*- import argparse from pathlib import Path AUDIO_EXTS = [".wav", ".flac", ".mp3", ".ogg", ".m4a"] def is_audio_name(x: str) -> bool: return Path(x).suffix.lower() in AUDIO_EXTS def is_sbc_source(x: str) -> bool: """ 第三列来源文件是否是 SBC 切片。 例如： train_02263_SBC023_bgclip_1123.00_1127.00_score54.7008.wav """ name = Path(x).name return "SBC" in name and is_audio_name(name) def parse_protocol(protocol_path: Path): """ 返回所有 label == orig 的行，并标记第三列是否是 SBC 来源。 兼容格式： train_orig_0007711 orig train_02263_SBC023_bgclip_1123.00_1127.00_score54.7008.wav """ orig_rows = [] with open(protocol_path, "r", encoding="utf-8", errors="ignore") as f: for line_no, line in enumerate(f, 1): line = line.strip() if not line or line.startswith("#"): continue parts = line.split() if len(parts) < 2: continue utt_id = parts[0] label = parts[1] # 跳过表头 if utt_id.lower() in {"utt_id", "id"} or label.lower() == "label": continue if label != "orig": continue src = parts[2] if len(parts) >= 3 else "" orig_rows.append({ "line_no": line_no, "utt_id": utt_id, "src": Path(src).name if src else "", "is_sbc": is_sbc_source(src), }) return orig_rows def find_target_file(wav_dir: Path, utt_id: str): """ 要删的是第一列 utt_id 对应的音频： train_orig_0007711 -> train_orig_0007711.wav """ for ext in AUDIO_EXTS: p = wav_dir / f"{utt_id}{ext}" if p.exists(): return p return None def process_split(mixed_dir: Path, split: str, do_delete: bool): split_dir = mixed_dir / split wav_dir = split_dir / "wav" protocol_path = split_dir / "protocol.txt" result = { "split": split, "total_orig_rows": 0, "sbc_orig_rows": 0, "non_sbc_orig_rows": 0, "existing_delete_files": 0, "missing_delete_files": 0, "deleted_files": 0, "delete_targets": [], "missing_targets": [], "non_sbc_orig": [], } if not protocol_path.exists(): print(f"[WARN] Missing protocol: {protocol_path}") return result if not wav_dir.exists(): print(f"[WARN] Missing wav dir: {wav_dir}") return result orig_rows = parse_protocol(protocol_path) result["total_orig_rows"] = len(orig_rows) for r in orig_rows: if not r["is_sbc"]: result["non_sbc_orig_rows"] += 1 result["non_sbc_orig"].append(r) continue result["sbc_orig_rows"] += 1 target = find_target_file(wav_dir, r["utt_id"]) if target is None: result["missing_delete_files"] += 1 result["missing_targets"].append(r) continue result["existing_delete_files"] += 1 result["delete_targets"].append({ **r, "target": target, }) if do_delete: target.unlink() result["deleted_files"] += 1 return result def write_reports(report_dir: Path, mixed_dir: Path, results): report_dir.mkdir(parents=True, exist_ok=True) summary_path = report_dir / "summary.txt" with open(summary_path, "w", encoding="utf-8") as f: f.write( "split total_orig sbc_orig non_sbc_orig " "existing_to_delete missing_to_delete deleted\n" ) for r in results: f.write( f"{r['split']} " f"{r['total_orig_rows']} " f"{r['sbc_orig_rows']} " f"{r['non_sbc_orig_rows']} " f"{r['existing_delete_files']} " f"{r['missing_delete_files']} " f"{r['deleted_files']}\n" ) f.write("\n") f.write( f"TOTAL " f"{sum(r['total_orig_rows'] for r in results)} " f"{sum(r['sbc_orig_rows'] for r in results)} " f"{sum(r['non_sbc_orig_rows'] for r in results)} " f"{sum(r['existing_delete_files'] for r in results)} " f"{sum(r['missing_delete_files'] for r in results)} " f"{sum(r['deleted_files'] for r in results)}\n" ) for r in results: split = r["split"] with open(report_dir / f"{split}_delete_targets.txt", "w", encoding="utf-8") as f: f.write("line_no utt_id src_sbc target_file\n") for x in r["delete_targets"]: rel = x["target"].relative_to(mixed_dir) f.write(f"{x['line_no']} {x['utt_id']} {x['src']} {rel}\n") with open(report_dir / f"{split}_missing_targets.txt", "w", encoding="utf-8") as f: f.write("line_no utt_id src_sbc expected_file\n") for x in r["missing_targets"]: f.write(f"{x['line_no']} {x['utt_id']} {x['src']} {split}/wav/{x['utt_id']}.wav\n") with open(report_dir / f"{split}_non_sbc_orig_kept.txt", "w", encoding="utf-8") as f: f.write("line_no utt_id src\n") for x in r["non_sbc_orig"]: f.write(f"{x['line_no']} {x['utt_id']} {x['src']}\n") def print_summary(results, do_delete: bool, report_dir: Path): print("\n==================== Summary ====================") print(f"Mode : {'DELETE' if do_delete else 'DRY-RUN'}") print(f"Report dir : {report_dir}") total_orig = 0 total_sbc = 0 total_non_sbc = 0 total_existing = 0 total_missing = 0 total_deleted = 0 for r in results: total_orig += r["total_orig_rows"] total_sbc += r["sbc_orig_rows"] total_non_sbc += r["non_sbc_orig_rows"] total_existing += r["existing_delete_files"] total_missing += r["missing_delete_files"] total_deleted += r["deleted_files"] print(f"\n[{r['split']}]") print(f" Total orig rows : {r['total_orig_rows']}") print(f" SBC-corresponding orig rows : {r['sbc_orig_rows']}") print(f" Non-SBC orig rows kept : {r['non_sbc_orig_rows']}") print(f" Existing files to delete : {r['existing_delete_files']}") print(f" Missing target files : {r['missing_delete_files']}") print(f" Deleted files : {r['deleted_files']}") print("\n[TOTAL]") print(f" Total orig rows : {total_orig}") print(f" SBC-corresponding orig rows : {total_sbc}") print(f" Non-SBC orig rows kept : {total_non_sbc}") print(f" Existing files to delete : {total_existing}") print(f" Missing target files : {total_missing}") print(f" Deleted files : {total_deleted}") if total_orig > 0: ratio = total_sbc / total_orig * 100 print(f" SBC-orig ratio : {ratio:.2f}%") if not do_delete: print("\n[DRY-RUN] 没有真正删除。确认 existing files to delete 数量正确后，加 --delete 再运行。") def main(): parser = argparse.ArgumentParser( description="Compare total orig rows with SBC-corresponding orig rows, then delete only those orig wavs." ) parser.add_argument( "--mixed_sounds_dir", type=str, required=True, help="Path to Mixed_sounds directory.", ) parser.add_argument( "--delete", action="store_true", help="Actually delete files. Default is dry-run.", ) args = parser.parse_args() mixed_dir = Path(args.mixed_sounds_dir).resolve() report_dir = mixed_dir / "delete_sbc_orig_compare_report" results = [] for split in ["train", "eval"]: results.append( process_split( mixed_dir=mixed_dir, split=split, do_delete=args.delete, ) ) write_reports(report_dir, mixed_dir, results) print_summary(results, args.delete, report_dir) if __name__ == "__main__": main()