75 lines
2.8 KiB
Python
75 lines
2.8 KiB
Python
# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import re
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import numpy as np
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import paddle
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from parakeet.frontend.cn_frontend import Frontend as cnFrontend
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class Frontend():
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def __init__(self, phone_vocab_path=None, tone_vocab_path=None):
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self.frontend = cnFrontend()
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self.vocab_phones = {}
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self.vocab_tones = {}
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if phone_vocab_path:
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with open(phone_vocab_path, 'rt') as f:
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phn_id = [line.strip().split() for line in f.readlines()]
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for phn, id in phn_id:
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self.vocab_phones[phn] = int(id)
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if tone_vocab_path:
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with open(tone_vocab_path, 'rt') as f:
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tone_id = [line.strip().split() for line in f.readlines()]
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for tone, id in tone_id:
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self.vocab_tones[tone] = int(id)
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def _p2id(self, phonemes):
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# replace unk phone with sp
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phonemes = [
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phn if phn in self.vocab_phones else "sp" for phn in phonemes
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]
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phone_ids = [self.vocab_phones[item] for item in phonemes]
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return np.array(phone_ids, np.int64)
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def _t2id(self, tones):
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# replace unk phone with sp
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tones = [tone if tone in self.vocab_tones else "0" for tone in tones]
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tone_ids = [self.vocab_tones[item] for item in tones]
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return np.array(tone_ids, np.int64)
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def get_input_ids(self, sentence, get_tone_ids=False):
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phonemes = self.frontend.get_phonemes(sentence)
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result = {}
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phones = []
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tones = []
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if get_tone_ids and self.vocab_tones:
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for full_phone in phonemes:
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# split tone from finals
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match = re.match(r'^(\w+)([012345])$', full_phone)
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if match:
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phones.append(match.group(1))
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tones.append(match.group(2))
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else:
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phones.append(full_phone)
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tones.append('0')
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tone_ids = self._t2id(tones)
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tone_ids = paddle.to_tensor(tone_ids)
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result["tone_ids"] = tone_ids
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else:
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phones = phonemes
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phone_ids = self._p2id(phones)
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phone_ids = paddle.to_tensor(phone_ids)
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result["phone_ids"] = phone_ids
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return result
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