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chore: Support supplying the vocoder model locally #14

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13 changes: 11 additions & 2 deletions src/infer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
from torch.nn.utils.rnn import pad_sequence
from torchdiffeq import odeint
from safetensors.torch import load_file
import IPython.display as ipd
from pathlib import Path

# Import F5-TTS modules
from f5_tts.model import CFM, UNetT, DiT
Expand Down Expand Up @@ -126,7 +126,16 @@ def _setup_mel_spec(self):

def _setup_vocoder(self):
"""Initialize vocoder."""
self.vocos = load_vocoder(is_local=False, local_path="")
# Provide path via ENV to a local copy of the model (otherwise it will be downloaded from HF):
# https://huggingface.co/charactr/vocos-mel-24khz
model_dir = Path(os.environ.get("MODEL_DIR_VOCODER", ""))
required_files = ["config.yaml", "pytorch_model.bin"]

if model_dir.is_dir() and all((model_dir / f).is_file() for f in required_files):
self.vocos = load_vocoder(is_local=True, local_path=model_dir)
else:
self.vocos = load_vocoder(is_local=False, local_path="")

self.vocos = self.vocos.to(self.device)

def _setup_duration_predictor(self, checkpoint_path):
Expand Down