import torch

import os
from speechbrain.pretrained import EncoderClassifier

spk_model_name = "speechbrain/spkrec-xvect-voxceleb"

device = "cuda" if torch.cuda.is_available() else "cpu"
speaker_model = EncoderClassifier.from_hparams(
    source=spk_model_name,
    run_opts={"device": device},
    savedir=os.path.join("/tmp", spk_model_name),
)

def create_speaker_embedding(waveform):
    with torch.no_grad():
        speaker_embeddings = speaker_model.encode_batch(waveform)
        speaker_embeddings = torch.nn.functional.normalize(speaker_embeddings, dim=-1)
    return speaker_embeddings