rvc/train/extract/preparing_files.py

import os
import shutil
from random import shuffle
from rvc.configs.config import Config
import json

config = Config()
current_directory = os.getcwd()


def generate_config(rvc_version: str, sample_rate: int, model_path: str):
    config_path = os.path.join("rvc", "configs", rvc_version, f"{sample_rate}.json")
    config_save_path = os.path.join(model_path, "config.json")
    if not os.path.exists(config_save_path):
        shutil.copyfile(config_path, config_save_path)


def generate_filelist(model_path: str, rvc_version: str, sample_rate: int):
    gt_wavs_dir = os.path.join(model_path, "sliced_audios")
    feature_dir = os.path.join(model_path, f"{rvc_version}_extracted")

    f0_dir, f0nsf_dir = None, None
    f0_dir = os.path.join(model_path, "f0")
    f0nsf_dir = os.path.join(model_path, "f0_voiced")

    gt_wavs_files = set(name.split(".")[0] for name in os.listdir(gt_wavs_dir))
    feature_files = set(name.split(".")[0] for name in os.listdir(feature_dir))

    f0_files = set(name.split(".")[0] for name in os.listdir(f0_dir))
    f0nsf_files = set(name.split(".")[0] for name in os.listdir(f0nsf_dir))
    names = gt_wavs_files & feature_files & f0_files & f0nsf_files

    options = []
    mute_base_path = os.path.join(current_directory, "logs", "mute")
    sids = []
    for name in names:
        sid = name.split("_")[0]
        if sid not in sids:
            sids.append(sid)
        options.append(
            f"{gt_wavs_dir}/{name}.wav|{feature_dir}/{name}.npy|{f0_dir}/{name}.wav.npy|{f0nsf_dir}/{name}.wav.npy|{sid}"
        )

    mute_audio_path = os.path.join(
        mute_base_path, "sliced_audios", f"mute{sample_rate}.wav"
    )
    mute_feature_path = os.path.join(
        mute_base_path, f"{rvc_version}_extracted", "mute.npy"
    )
    mute_f0_path = os.path.join(mute_base_path, "f0", "mute.wav.npy")
    mute_f0nsf_path = os.path.join(mute_base_path, "f0_voiced", "mute.wav.npy")

    # always adding two files
    for sid in sids:
        options.append(
            f"{mute_audio_path}|{mute_feature_path}|{mute_f0_path}|{mute_f0nsf_path}|{sid}"
        )
        options.append(
            f"{mute_audio_path}|{mute_feature_path}|{mute_f0_path}|{mute_f0nsf_path}|{sid}"
        )

    file_path = os.path.join(model_path, "model_info.json")
    if os.path.exists(file_path):
        with open(file_path, "r") as f:
            data = json.load(f)
    else:
        data = {}
    data.update(
        {
            "speakers_id": len(sids),
        }
    )
    with open(file_path, "w") as f:
        json.dump(data, f, indent=4)

    shuffle(options)

    with open(os.path.join(model_path, "filelist.txt"), "w") as f:
        f.write("\n".join(options))