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vits-simple-api
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import logging
import os
from json import loads
import av
from torch import load, FloatTensor
from numpy import float32
import librosa


class HParams():
    def __init__(self, **kwargs):
        for k, v in kwargs.items():
            if type(v) == dict:
                v = HParams(**v)
            self[k] = v

    def keys(self):
        return self.__dict__.keys()

    def items(self):
        return self.__dict__.items()

    def values(self):
        return self.__dict__.values()

    def __len__(self):
        return len(self.__dict__)

    def __getitem__(self, key):
        return getattr(self, key)

    def __setitem__(self, key, value):
        return setattr(self, key, value)

    def __contains__(self, key):
        return key in self.__dict__

    def __repr__(self):
        return self.__dict__.__repr__()


def load_checkpoint(checkpoint_path, model):
    checkpoint_dict = load(checkpoint_path, map_location='cpu')
    iteration = checkpoint_dict['iteration']
    saved_state_dict = checkpoint_dict['model']
    if hasattr(model, 'module'):
        state_dict = model.module.state_dict()
    else:
        state_dict = model.state_dict()
    new_state_dict = {}
    for k, v in state_dict.items():
        try:
            new_state_dict[k] = saved_state_dict[k]
        except:
            logging.info("%s is not in the checkpoint" % k)
            new_state_dict[k] = v
    if hasattr(model, 'module'):
        model.module.load_state_dict(new_state_dict)
    else:
        model.load_state_dict(new_state_dict)
    logging.info("Loaded checkpoint '{}' (iteration {})".format(
        checkpoint_path, iteration))
    return


def get_hparams_from_file(config_path):
    with open(config_path, 'r', encoding='utf-8') as f:
        data = f.read()
    config = loads(data)

    hparams = HParams(**config)
    return hparams


def load_audio_to_torch(full_path, target_sampling_rate):
    audio, sampling_rate = librosa.load(full_path, sr=target_sampling_rate, mono=True)
    return FloatTensor(audio.astype(float32))


def wav2ogg(input, output):
    with av.open(input, 'rb') as i:
        with av.open(output, 'wb', format='ogg') as o:
            out_stream = o.add_stream('libvorbis')
            for frame in i.decode(audio=0):
                for p in out_stream.encode(frame):
                    o.mux(p)

            for p in out_stream.encode(None):
                o.mux(p)

def wav2mp3(input, output):
    with av.open(input, 'rb') as i:
        with av.open(output, 'wb', format='mp3') as o:
            out_stream = o.add_stream('mp3')
            for frame in i.decode(audio=0):
                for p in out_stream.encode(frame):
                    o.mux(p)

            for p in out_stream.encode(None):
                o.mux(p)

def clean_folder(folder_path):
    for filename in os.listdir(folder_path):
        file_path = os.path.join(folder_path, filename)
        # 如果是文件，则删除文件
        if os.path.isfile(file_path):
            os.remove(file_path)


# is none -> True, is not none -> False
def check_is_none(s):
    return s is None or (isinstance(s, str) and str(s).isspace()) or str(s) == ""