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PaddleSpeech/paddlespeech/cli/s2t/infer.py

104 lines
3.1 KiB

# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import argparse
import os
from typing import List
from typing import Optional
from typing import Union
import paddle
from ..executor import BaseExecutor
from ..utils import cli_register
__all__ = ['S2TExecutor']
@cli_register(
name='paddlespeech.s2t', description='Speech to text infer command.')
class S2TExecutor(BaseExecutor):
def __init__(self):
super(S2TExecutor, self).__init__()
self.parser = argparse.ArgumentParser(
prog='paddlespeech.s2t', add_help=True)
self.parser.add_argument(
'--config',
type=str,
default=None,
help='Config of s2t task. Use deault config when it is None.')
self.parser.add_argument(
'--input', type=str, help='Audio file to recognize.')
self.parser.add_argument(
'--device',
type=str,
default='cpu',
help='Choose device to execute model inference.')
def _get_default_cfg_path(self):
"""
Returns a default config file path of current task.
"""
pass
def _init_from_cfg(self, cfg_path: Optional[os.PathLike]=None):
"""
Init model from a specific config file.
"""
pass
def preprocess(self, input: Union[str, os.PathLike]):
"""
Input preprocess and return paddle.Tensor stored in self.input.
Input content can be a text(t2s), a file(s2t, cls) or a streaming(not supported yet).
"""
pass
@paddle.no_grad()
def infer(self):
"""
Model inference and result stored in self.output.
"""
pass
def postprocess(self) -> Union[str, os.PathLike]:
"""
Output postprocess and return human-readable results such as texts and audio files.
"""
pass
def execute(self, argv: List[str]) -> bool:
parser_args = self.parser.parse_args(argv)
print(parser_args)
config = parser_args.config
audio_file = parser_args.input
device = parser_args.device
if config is not None:
assert os.path.isfile(config), 'Config file is not valid.'
else:
config = self._get_default_cfg_path()
try:
self._init_from_cfg(config)
self.preprocess(audio_file)
self.infer()
res = self.postprocess() # Retrieve result of s2t.
print(res)
return True
except Exception as e:
print(e)
return False