You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
2.6 KiB
87 lines
2.6 KiB
3 years ago
|
# 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.
|
||
|
|
# Modified from espnet(https://github.com/espnet/espnet)
|
||
|
|
import inspect
|
||
|
|
|
||
|
|
from paddlespeech.audio.transform.transform_interface import TransformInterface
|
||
|
|
from paddlespeech.audio.utils.check_kwargs import check_kwargs
|
||
|
|
|
||
|
|
|
||
|
|
class FuncTrans(TransformInterface):
|
||
|
|
"""Functional Transformation
|
||
|
|
|
||
|
|
WARNING:
|
||
|
|
Builtin or C/C++ functions may not work properly
|
||
|
|
because this class heavily depends on the `inspect` module.
|
||
|
|
|
||
|
|
Usage:
|
||
|
|
|
||
|
|
>>> def foo_bar(x, a=1, b=2):
|
||
|
|
... '''Foo bar
|
||
|
|
... :param x: input
|
||
|
|
... :param int a: default 1
|
||
|
|
... :param int b: default 2
|
||
|
|
... '''
|
||
|
|
... return x + a - b
|
||
|
|
|
||
|
|
|
||
|
|
>>> class FooBar(FuncTrans):
|
||
|
|
... _func = foo_bar
|
||
|
|
... __doc__ = foo_bar.__doc__
|
||
|
|
"""
|
||
|
|
|
||
|
|
_func = None
|
||
|
|
|
||
|
|
def __init__(self, **kwargs):
|
||
|
|
self.kwargs = kwargs
|
||
|
|
check_kwargs(self.func, kwargs)
|
||
|
|
|
||
|
|
def __call__(self, x):
|
||
|
|
return self.func(x, **self.kwargs)
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def add_arguments(cls, parser):
|
||
|
|
fname = cls._func.__name__.replace("_", "-")
|
||
|
|
group = parser.add_argument_group(fname + " transformation setting")
|
||
|
|
for k, v in cls.default_params().items():
|
||
|
|
# TODO(karita): get help and choices from docstring?
|
||
|
|
attr = k.replace("_", "-")
|
||
|
|
group.add_argument(f"--{fname}-{attr}", default=v, type=type(v))
|
||
|
|
return parser
|
||
|
|
|
||
|
|
@property
|
||
|
|
def func(self):
|
||
|
|
return type(self)._func
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def default_params(cls):
|
||
|
|
try:
|
||
|
|
d = dict(inspect.signature(cls._func).parameters)
|
||
|
|
except ValueError:
|
||
|
|
d = dict()
|
||
|
|
return {
|
||
|
|
k: v.default
|
||
|
|
for k, v in d.items() if v.default != inspect.Parameter.empty
|
||
|
|
}
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
params = self.default_params()
|
||
|
|
params.update(**self.kwargs)
|
||
|
|
ret = self.__class__.__name__ + "("
|
||
|
|
if len(params) == 0:
|
||
|
|
return ret + ")"
|
||
|
|
for k, v in params.items():
|
||
|
|
ret += "{}={}, ".format(k, v)
|
||
|
|
return ret[:-2] + ")"
|