


"""simple docstring"""







import numpy as np  # noqa: E402

from ...configuration_utils import ConfigMixin, register_to_config
from ...schedulers.scheduling_utils import SchedulerMixin


try:
						import librosa  # noqa: E402

						__a			 =   True
						__a			 =   ""
except Exception as e:
						__a			 =   False
						__a			 =   (
						    f'''Cannot import librosa because {e}. Make sure to correctly install librosa to be able to install it.'''
						)


from PIL import Image  # noqa: E402
class 							lowerCamelCase       (			__SCREAMING_SNAKE_CASE				,					__SCREAMING_SNAKE_CASE ):


							"""simple docstring"""
							SCREAMING_SNAKE_CASE										=      """mel_config.json"""






							@register_to_config
							def __init__(						self :     Dict		, lowerCamelCase_ :     int = 256		, lowerCamelCase_ :     int = 256		, lowerCamelCase_ :     int = 22050		, lowerCamelCase_ :     int = 2048		, lowerCamelCase_ :     int = 512		, lowerCamelCase_ :     int = 80		, lowerCamelCase_ :     int = 32		, ):
													UpperCAmelCase__		=    hop_length
													UpperCAmelCase__		=    sample_rate
													UpperCAmelCase__		=    n_fft
													UpperCAmelCase__		=    top_db
													UpperCAmelCase__		=    n_iter
													self.set_resolution(lowerCamelCase_		, lowerCamelCase_				)
													UpperCAmelCase__		=    None

													if not _librosa_can_be_imported:
																			raise ValueError(_import_error				)






							def 					lowerCAmelCase     (						self :     Optional[Any]		, lowerCamelCase_ :     int		, lowerCamelCase_ :     int				):
													UpperCAmelCase__		=    x_res
													UpperCAmelCase__		=    y_res
													UpperCAmelCase__		=    self.y_res
													UpperCAmelCase__		=    self.x_res * self.hop_length - 1






							def 					lowerCAmelCase     (						self :     str		, lowerCamelCase_ :     str = None		, lowerCamelCase_ :     np.ndarray = None				):
													if audio_file is not None:
																			UpperCAmelCase__	,				UpperCAmelCase__		=    librosa.load(lowerCamelCase_		, mono=lowerCamelCase_		, sr=self.sr				)
													else:
																			UpperCAmelCase__		=    raw_audio

													# Pad with silence if necessary.
													if len(self.audio				) < self.x_res * self.hop_length:
																			UpperCAmelCase__		=    np.concatenate([self.audio, np.zeros((self.x_res * self.hop_length - len(self.audio				),)				)]				)






							def 					lowerCAmelCase     (						self :     List[str]				):
													return len(self.audio				) // self.slice_size






							def 					lowerCAmelCase     (						self :     Optional[Any]		, lowerCamelCase_ :     int = 0				):
													return self.audio[self.slice_size * slice : self.slice_size * (slice + 1)]






							def 					lowerCAmelCase     (						self :     Union[str, Any]				):
													return self.sr






							def 					lowerCAmelCase     (						self :     Optional[int]		, lowerCamelCase_ :     int				):
													UpperCAmelCase__		=    librosa.feature.melspectrogram(
													    y=self.get_audio_slice(lowerCamelCase_				)		, sr=self.sr		, n_fft=self.n_fft		, hop_length=self.hop_length		, n_mels=self.n_mels				)
													UpperCAmelCase__		=    librosa.power_to_db(lowerCamelCase_		, ref=np.max		, top_db=self.top_db				)
													UpperCAmelCase__		=    (((log_S + self.top_db) * 255 / self.top_db).clip(0		, 255				) + 0.5).astype(np.uinta				)
													UpperCAmelCase__		=    Image.fromarray(lowerCamelCase_				)
													return image






							def 					lowerCAmelCase     (						self :     str		, lowerCamelCase_ :     Image.Image				):
													UpperCAmelCase__		=    np.frombuffer(image.tobytes()		, dtype='''uint8'''				).reshape((image.height, image.width)				)
													UpperCAmelCase__		=    bytedata.astype('''float'''				) * self.top_db / 255 - self.top_db
													UpperCAmelCase__		=    librosa.db_to_power(lowerCamelCase_				)
													UpperCAmelCase__		=    librosa.feature.inverse.mel_to_audio(
													    lowerCamelCase_		, sr=self.sr		, n_fft=self.n_fft		, hop_length=self.hop_length		, n_iter=self.n_iter				)
													return audio



"""simple docstring"""







from __future__ import annotations

from collections.abc import Callable
from typing import Generic, TypeVar

__a			 =   TypeVar("T")
__a			 =   TypeVar("U")
class 							lowerCamelCase       (			Generic[T, U] ):


							"""simple docstring"""






							def __init__(						self :     str		, lowerCamelCase_ :     T | None		, lowerCamelCase_ :     U | None				):
													UpperCAmelCase__		=    key
													UpperCAmelCase__		=    val
													UpperCAmelCase__		=    0
													UpperCAmelCase__		=    None
													UpperCAmelCase__		=    None






							def __repr__(						self :     Tuple				):
													return "Node: key: {}, val: {}, freq: {}, has next: {}, has prev: {}".format(
													    self.key		, self.val		, self.freq		, self.next is not None		, self.prev is not None				)




class 							lowerCamelCase       (			Generic[T, U] ):


							"""simple docstring"""






							def __init__(						self :     List[str]				):
													UpperCAmelCase__		=    DoubleLinkedListNode(lowerCamelCase_		, lowerCamelCase_				)
													UpperCAmelCase__		=    DoubleLinkedListNode(lowerCamelCase_		, lowerCamelCase_				)
													UpperCAmelCase__	,				UpperCAmelCase__		=    self.rear, self.head






							def __repr__(						self :     int				):
													UpperCAmelCase__		=    ['''DoubleLinkedList''']
													UpperCAmelCase__		=    self.head
													while node.next is not None:
																			rep.append(str(lowerCamelCase_				)				)
																			UpperCAmelCase__		=    node.next
													rep.append(str(self.rear				)				)
													return ",\n    ".join(lowerCamelCase_				)






							def 					lowerCAmelCase     (						self :     List[Any]		, lowerCamelCase_ :     DoubleLinkedListNode[T, U]				):
													UpperCAmelCase__		=    self.rear.prev

													# All nodes other than self.head are guaranteed to have non-None previous
													assert previous is not None

													UpperCAmelCase__		=    node
													UpperCAmelCase__		=    previous
													UpperCAmelCase__		=    node
													UpperCAmelCase__		=    self.rear
													node.freq += 1
													self._position_node(lowerCamelCase_				)






							def 					lowerCAmelCase     (						self :     Optional[Any]		, lowerCamelCase_ :     DoubleLinkedListNode[T, U]				):

													while node.prev is not None and node.prev.freq > node.freq:
																			# swap node with previous node
																			UpperCAmelCase__		=    node.prev

																			UpperCAmelCase__		=    previous_node.prev
																			UpperCAmelCase__		=    node.prev
																			UpperCAmelCase__		=    previous_node
																			UpperCAmelCase__		=    node






							def 					lowerCAmelCase     (						self :     Union[str, Any]		, lowerCamelCase_ :     DoubleLinkedListNode[T, U]				):

													if node.prev is None or node.next is None:
																			return None

													UpperCAmelCase__		=    node.next
													UpperCAmelCase__		=    node.prev
													UpperCAmelCase__		=    None
													UpperCAmelCase__		=    None
													return node




class 							lowerCamelCase       (			Generic[T, U] ):


							"""simple docstring"""
							SCREAMING_SNAKE_CASE										=      {}






							def __init__(						self :     str		, lowerCamelCase_ :     int				):
													UpperCAmelCase__		=    DoubleLinkedList()
													UpperCAmelCase__		=    capacity
													UpperCAmelCase__		=    0
													UpperCAmelCase__		=    0
													UpperCAmelCase__		=    0
													UpperCAmelCase__		=    {}






							def __repr__(						self :     Tuple				):
													return (
													    f"""CacheInfo(hits={self.hits}, misses={self.miss}, """
													    f"""capacity={self.capacity}, current_size={self.num_keys})"""
													)






							def __contains__(						self :     Optional[Any]		, lowerCamelCase_ :     T				):
													return key in self.cache






							def 					lowerCAmelCase     (						self :     Any		, lowerCamelCase_ :     T				):

													if key in self.cache:
																			self.hits += 1
																			UpperCAmelCase__		=    self.cache[key]
																			UpperCAmelCase__		=    self.list.remove(self.cache[key]				)
																			assert node == value_node

																			# node is guaranteed not None because it is in self.cache
																			assert node is not None
																			self.list.add(lowerCamelCase_				)
																			return node.val
													self.miss += 1
													return None






							def 					lowerCAmelCase     (						self :     Tuple		, lowerCamelCase_ :     T		, lowerCamelCase_ :     U				):

													if key not in self.cache:
																			if self.num_keys >= self.capacity:
																									# delete first node when over capacity
																									UpperCAmelCase__		=    self.list.head.next

																									# guaranteed to have a non-None first node when num_keys > 0
																									# explain to type checker via assertions
																									assert first_node is not None
																									assert first_node.key is not None
																									assert self.list.remove(lowerCamelCase_				) is not None
																									# first_node guaranteed to be in list

																									del self.cache[first_node.key]
																									self.num_keys -= 1
																			UpperCAmelCase__		=    DoubleLinkedListNode(lowerCamelCase_		, lowerCamelCase_				)
																			self.list.add(self.cache[key]				)
																			self.num_keys += 1

													else:
																			UpperCAmelCase__		=    self.list.remove(self.cache[key]				)
																			assert node is not None  # node guaranteed to be in list
																			UpperCAmelCase__		=    value
																			self.list.add(lowerCamelCase_				)






							@classmethod
							def 					lowerCAmelCase     (						cls :     type[LFUCache[T, U]]		, lowerCamelCase_ :     int = 128				):

													def cache_decorator_inner(lowerCamelCase_ :     Callable[[T], U]				) -> Callable[..., U]:
																			def cache_decorator_wrapper(*lowerCamelCase_ :     T				) -> U:
																									if func not in cls.decorator_function_to_instance_map:
																															UpperCAmelCase__		=    LFUCache(lowerCamelCase_				)

																									UpperCAmelCase__		=    cls.decorator_function_to_instance_map[func].get(args[0]				)
																									if result is None:
																															UpperCAmelCase__		=    func(*lowerCamelCase_				)
																															cls.decorator_function_to_instance_map[func].put(args[0]		, lowerCamelCase_				)
																									return result

																			def cache_info() -> LFUCache[T, U]:
																									return cls.decorator_function_to_instance_map[func]

																			setattr(lowerCamelCase_		, '''cache_info'''		, lowerCamelCase_				)  # noqa: B010

																			return cache_decorator_wrapper

													return cache_decorator_inner


if __name__ == "__main__":
						import doctest

						doctest.testmod()