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from __future__ import annotations
import argparse
import json
from pathlib import Path, PurePath
import importlib.util
from config import DEFAULT_ALPHA
from models import get_model_config
MODEL_DEFAULT_LAYER = {
"raw": None,
"wavlm": 24,
"wav2vec2": 24,
"hubert": 24,
"wavlm_base": 12,
"wav2vec2_base": 12,
"hubert_base": 12,
"wav2vec2_xlsr": 24,
}
def _read_manifest_json(path: Path):
text = Path(path).read_text(encoding="utf-8")
try:
return json.loads(text)
except json.JSONDecodeError as e:
raise SystemExit(f"Manifest must be JSON. Failed to parse: {e}")
def _read_manifest_py(path: Path):
spec = importlib.util.spec_from_file_location("manifest_mod", str(path))
if spec is None or spec.loader is None:
raise SystemExit(f"Could not load Python manifest: {path}")
mod = importlib.util.module_from_spec(spec)
spec.loader.exec_module(mod)
if not hasattr(mod, "MANIFEST"):
raise SystemExit(f"Python manifest {path} must define a top-level variable MANIFEST")
manifest = mod.MANIFEST
def _to_str(p):
if isinstance(p, (Path, PurePath)):
return str(p)
if isinstance(p, str):
return p
raise TypeError(f"Path entry must be str or Path, got {type(p)}: {p}")
normalized = []
try:
for item in manifest:
mix_id = item["mixture_id"]
refs = [_to_str(x) for x in item["references"]]
systems = {}
for sys_name, lst in item["systems"].items():
systems[sys_name] = [_to_str(x) for x in lst]
normalized.append({
"mixture_id": mix_id,
"references": refs,
"systems": systems,
})
except (KeyError, TypeError, ValueError) as e:
raise SystemExit(f"Malformed MANIFEST in {path}: {e}")
return normalized
def _read_manifest(path: Path):
suffix = path.suffix.lower()
if suffix in {".py"}:
return _read_manifest_py(path)
elif suffix in {".json", ".txt"}:
return _read_manifest_json(path)
else:
raise SystemExit(f"Unsupported manifest type '{suffix}'. Use .py, .json, or .txt")
def _parse_args():
parser = argparse.ArgumentParser(
description="Run PS/PM experiment from a manifest file."
)
parser.add_argument(
"--manifest",
type=Path,
required=True,
help="Path to manifest (.py with MANIFEST or .json/.txt with JSON).",
)
parser.add_argument(
"--model",
type=str,
required=True,
help=("Embedding model. Choices: "
"raw, wavlm, wav2vec2, hubert, wavlm_base, wav2vec2_base, "
"hubert_base, wav2vec2_xlsr"),
)
parser.add_argument(
"--layer",
type=int,
default=None,
help="Optional layer (validated per model). Omit to use the model default.",
)
parser.add_argument(
"--alpha",
type=float,
default=None,
help="Optional diffusion-maps alpha in [0,1] (default: config DEFAULT_ALPHA).",
)
parser.add_argument("--verbose", action="store_true", help="Verbose logging.")
parser.add_argument("--max-gpus", type=int, default=None, help="Limit GPUs to use (must be >= 0).")
return parser.parse_args()
def _validate_and_resolve(model: str, layer_opt: int|None, alpha_opt: float|None):
allowed_models = set(get_model_config(0).keys())
if model not in allowed_models:
raise SystemExit(f"Unknown --model '{model}'. Allowed: {sorted(allowed_models)}")
max_layer = MODEL_DEFAULT_LAYER.get(model)
if model == "raw":
layer_final = 0 if layer_opt is None else int(layer_opt)
else:
if layer_opt is None:
if max_layer is None:
raise SystemExit(f"--layer must be provided for model '{model}'.")
layer_final = max_layer
else:
layer_final = int(layer_opt)
if max_layer is not None and not (0 <= layer_final <= max_layer):
raise SystemExit(
f"--layer {layer_final} is out of range for '{model}'. "
f"Expected 0..{max_layer} (or omit to use default {max_layer})."
)
alpha_final = DEFAULT_ALPHA if alpha_opt is None else float(alpha_opt)
if not (0.0 <= alpha_final <= 1.0):
raise SystemExit("--alpha must be in [0, 1].")
return layer_final, alpha_final
def _validate_gpus(max_gpus_opt):
if max_gpus_opt is None:
return None
try:
mg = int(max_gpus_opt)
except Exception:
raise SystemExit("--max-gpus must be an integer >= 0.")
if mg < 0:
raise SystemExit("--max-gpus must be >= 0.")
return mg |