

from queue import PriorityQueue
from typing import Any

import numpy as np

def       __snake_case						( __UpperCamelCase	: Tuple				,__UpperCamelCase	: Optional[Any]				,__UpperCamelCase	: Dict				,__UpperCamelCase	: str				,__UpperCamelCase	: str				,__UpperCamelCase	: int				,__UpperCamelCase	: Dict				,__UpperCamelCase	: int				,__UpperCamelCase	: int				,):



      """simple docstring"""

      for nxt, d in graph[v]:
            if nxt in visited_forward:
                  continue
            A_						  =				cst_fwd.get(lowercase__				,np.inf    )
            A_						  =				cst_fwd[v] + d
            if new_cost_f < old_cost_f:
                  queue.put((new_cost_f, nxt)    )
                  A_						  =				new_cost_f
                  A_						  =				v
            if nxt in visited_backward:
                  if cst_fwd[v] + d + cst_bwd[nxt] < shortest_distance:
                        A_						  =				cst_fwd[v] + d + cst_bwd[nxt]
      return shortest_distance

def       __snake_case						( __UpperCamelCase	: Dict				,__UpperCamelCase	: Tuple				,__UpperCamelCase	: Optional[Any]				,__UpperCamelCase	: List[str]    ):



      """simple docstring"""

      A_						  =				-1

      A_						  =				set()
      A_						  =				set()
      A_						  =				{source: 0}
      A_						  =				{destination: 0}
      A_						  =				{source: None}
      A_						  =				{destination: None}
      A_						  =				PriorityQueue()
      A_						  =				PriorityQueue()

      A_						  =				np.inf

      queue_forward.put((0, source)    )
      queue_backward.put((0, destination)    )

      if source == destination:
            return 0

      while not queue_forward.empty() and not queue_backward.empty():
            A_						  =				queue_forward.get()
            visited_forward.add(lowercase__    )

            A_						  =				queue_backward.get()
            visited_backward.add(lowercase__    )

            A_						  =				pass_and_relaxation(
                lowercase__				,lowercase__				,lowercase__				,lowercase__				,lowercase__				,lowercase__				,lowercase__				,lowercase__				,lowercase__				,)

            A_						  =				pass_and_relaxation(
                lowercase__				,lowercase__				,lowercase__				,lowercase__				,lowercase__				,lowercase__				,lowercase__				,lowercase__				,lowercase__				,)

            if cst_fwd[v_fwd] + cst_bwd[v_bwd] >= shortest_distance:
                  break

      if shortest_distance != np.inf:
            A_						  =				shortest_distance
      return shortest_path_distance


__a    :List[Any]      =			{
    'B': [['C', 1]],
    'C': [['D', 1]],
    'D': [['F', 1]],
    'E': [['B', 1], ['G', 2]],
    'F': [],
    'G': [['F', 1]],
}
__a    :Any      =			{
    'B': [['E', 1]],
    'C': [['B', 1]],
    'D': [['C', 1]],
    'F': [['D', 1], ['G', 1]],
    'E': [[None, np.inf]],
    'G': [['E', 2]],
}

if __name__ == "__main__":
      import doctest

      doctest.testmod()


"""simple docstring"""

import itertools
import os
import random
import tempfile
import unittest

import numpy as np

from transformers import TvltFeatureExtractor, is_datasets_available
from transformers.testing_utils import check_json_file_has_correct_format, require_torch, require_torchaudio
from transformers.utils.import_utils import is_torch_available

from ...test_sequence_feature_extraction_common import SequenceFeatureExtractionTestMixin


if is_torch_available():
    import torch

if is_datasets_available():
    from datasets import load_dataset

_UpperCamelCase		     =    random.Random()



def       SCREAMING_SNAKE_CASE							( lowercase__					,					lowercase__=1.0					,					lowercase__=None					,					lowercase__=None   )			->						Optional[Any]:
 if rng is None:
  lowerCAmelCase__   :				Union[str, Any] 			=				global_rng

 lowerCAmelCase__   :				Dict 			=				[]
 for batch_idx in range(shape[0]   ):
  values.append([]   )
  for _ in range(shape[1]   ):
   values[-1].append(rng.random() * scale   )

 return values






class 			__a					(						unittest.TestCase       ):





       """simple docstring"""


       def __init__(   self			,					snake_case			,					snake_case=7			,					snake_case=400			,					snake_case=2_000			,					snake_case=2_048			,					snake_case=128			,					snake_case=1			,					snake_case=512			,					snake_case=30			,					snake_case=44_100			,					):





        """simple docstring"""

        lowerCAmelCase__   :				Optional[int] 			=				parent
        lowerCAmelCase__   :				Optional[int] 			=				batch_size
        lowerCAmelCase__   :				Optional[Any] 			=				min_seq_length
        lowerCAmelCase__   :				Optional[int] 			=				max_seq_length
        lowerCAmelCase__   :				Dict 			=				(self.max_seq_length - self.min_seq_length) // (self.batch_size - 1)
        lowerCAmelCase__   :				Dict 			=				spectrogram_length
        lowerCAmelCase__   :				Any 			=				feature_size
        lowerCAmelCase__   :				int 			=				num_audio_channels
        lowerCAmelCase__   :				Optional[int] 			=				hop_length
        lowerCAmelCase__   :				List[str] 			=				chunk_length
        lowerCAmelCase__   :				Optional[Any] 			=				sampling_rate






       def 			SCREAMING_SNAKE_CASE_	(   self   ):





        """simple docstring"""

        return {
            "spectrogram_length": self.spectrogram_length,
            "feature_size": self.feature_size,
            "num_audio_channels": self.num_audio_channels,
            "hop_length": self.hop_length,
            "chunk_length": self.chunk_length,
            "sampling_rate": self.sampling_rate,
        }






       def 			SCREAMING_SNAKE_CASE_	(   self			,					snake_case=False			,					snake_case=False   ):





        """simple docstring"""

        def _flatten(snake_case   ):
         return list(itertools.chain(*snake_case   )   )

        if equal_length:
         lowerCAmelCase__   :				Dict 			=				[floats_list((self.max_seq_length, self.feature_size)   ) for _ in range(self.batch_size   )]
        else:
         # make sure that inputs increase in size
         lowerCAmelCase__   :				Tuple 			=				[
             floats_list((x, self.feature_size)   )
             for x in range(self.min_seq_length			,					self.max_seq_length			,					self.seq_length_diff   )
         ]
        if numpify:
         lowerCAmelCase__   :				Dict 			=				[np.asarray(snake_case   ) for x in speech_inputs]
        return speech_inputs






@require_torch
@require_torchaudio
class 			__a					(						__magic_name__       ,	unittest.TestCase       ):





       """simple docstring"""


       __UpperCamelCase					:      Optional[Any]    =						TvltFeatureExtractor






       def 			SCREAMING_SNAKE_CASE_	(   self   ):





        """simple docstring"""

        lowerCAmelCase__   :				Optional[Any] 			=				TvltFeatureExtractionTester(self   )






       def 			SCREAMING_SNAKE_CASE_	(   self   ):





        """simple docstring"""

        lowerCAmelCase__   :				List[str] 			=				self.feature_extraction_class(**self.feat_extract_dict   )
        self.assertTrue(hasattr(snake_case			,					"spectrogram_length"   )   )
        self.assertTrue(hasattr(snake_case			,					"feature_size"   )   )
        self.assertTrue(hasattr(snake_case			,					"num_audio_channels"   )   )
        self.assertTrue(hasattr(snake_case			,					"hop_length"   )   )
        self.assertTrue(hasattr(snake_case			,					"chunk_length"   )   )
        self.assertTrue(hasattr(snake_case			,					"sampling_rate"   )   )






       def 			SCREAMING_SNAKE_CASE_	(   self   ):





        """simple docstring"""

        lowerCAmelCase__   :				int 			=				self.feature_extraction_class(**self.feat_extract_dict   )

        with tempfile.TemporaryDirectory() as tmpdirname:
         lowerCAmelCase__   :				Union[str, Any] 			=				feat_extract_first.save_pretrained(snake_case   )[0]
         check_json_file_has_correct_format(snake_case   )
         lowerCAmelCase__   :				Tuple 			=				self.feature_extraction_class.from_pretrained(snake_case   )

        lowerCAmelCase__   :				Union[str, Any] 			=				feat_extract_first.to_dict()
        lowerCAmelCase__   :				int 			=				feat_extract_second.to_dict()
        lowerCAmelCase__   :				Union[str, Any] 			=				dict_first.pop("mel_filters"   )
        lowerCAmelCase__   :				List[Any] 			=				dict_second.pop("mel_filters"   )
        self.assertTrue(np.allclose(snake_case			,					snake_case   )   )
        self.assertEqual(snake_case			,					snake_case   )






       def 			SCREAMING_SNAKE_CASE_	(   self   ):





        """simple docstring"""

        lowerCAmelCase__   :				Any 			=				self.feature_extraction_class(**self.feat_extract_dict   )

        with tempfile.TemporaryDirectory() as tmpdirname:
         lowerCAmelCase__   :				List[Any] 			=				os.path.join(snake_case			,					"feat_extract.json"   )
         feat_extract_first.to_json_file(snake_case   )
         lowerCAmelCase__   :				List[Any] 			=				self.feature_extraction_class.from_json_file(snake_case   )

        lowerCAmelCase__   :				Optional[Any] 			=				feat_extract_first.to_dict()
        lowerCAmelCase__   :				Dict 			=				feat_extract_second.to_dict()
        lowerCAmelCase__   :				Tuple 			=				dict_first.pop("mel_filters"   )
        lowerCAmelCase__   :				Dict 			=				dict_second.pop("mel_filters"   )
        self.assertTrue(np.allclose(snake_case			,					snake_case   )   )
        self.assertEqual(snake_case			,					snake_case   )






       def 			SCREAMING_SNAKE_CASE_	(   self   ):





        """simple docstring"""

        lowerCAmelCase__   :				Optional[int] 			=				self.feature_extraction_class(**self.feat_extract_dict   )

        # create three inputs of length 800, 1000, and 1200
        lowerCAmelCase__   :				Union[str, Any] 			=				[floats_list((1, x)   )[0] for x in range(800			,					1_400			,					200   )]
        lowerCAmelCase__   :				Optional[int] 			=				[np.asarray(snake_case   ) for speech_input in speech_inputs]

        # Test not batched input
        lowerCAmelCase__   :				Tuple 			=				feature_extractor(np_speech_inputs[0]			,					return_tensors="np"			,					sampling_rate=44_100   ).audio_values

        self.assertTrue(encoded_audios.ndim == 4   )
        self.assertTrue(encoded_audios.shape[-1] == feature_extractor.feature_size   )
        self.assertTrue(encoded_audios.shape[-2] <= feature_extractor.spectrogram_length   )
        self.assertTrue(encoded_audios.shape[-3] == feature_extractor.num_channels   )

        # Test batched
        lowerCAmelCase__   :				Optional[int] 			=				feature_extractor(snake_case			,					return_tensors="np"			,					sampling_rate=44_100   ).audio_values

        self.assertTrue(encoded_audios.ndim == 4   )
        self.assertTrue(encoded_audios.shape[-1] == feature_extractor.feature_size   )
        self.assertTrue(encoded_audios.shape[-2] <= feature_extractor.spectrogram_length   )
        self.assertTrue(encoded_audios.shape[-3] == feature_extractor.num_channels   )

        # Test audio masking
        lowerCAmelCase__   :				List[str] 			=				feature_extractor(
            snake_case			,					return_tensors="np"			,					sampling_rate=44_100			,					mask_audio=snake_case   ).audio_values

        self.assertTrue(encoded_audios.ndim == 4   )
        self.assertTrue(encoded_audios.shape[-1] == feature_extractor.feature_size   )
        self.assertTrue(encoded_audios.shape[-2] <= feature_extractor.spectrogram_length   )
        self.assertTrue(encoded_audios.shape[-3] == feature_extractor.num_channels   )

        # Test 2-D numpy arrays are batched.
        lowerCAmelCase__   :				List[str] 			=				[floats_list((1, x)   )[0] for x in (800, 800, 800)]
        lowerCAmelCase__   :				Tuple 			=				np.asarray(snake_case   )
        lowerCAmelCase__   :				List[Any] 			=				feature_extractor(snake_case			,					return_tensors="np"			,					sampling_rate=44_100   ).audio_values
        self.assertTrue(encoded_audios.ndim == 4   )
        self.assertTrue(encoded_audios.shape[-1] == feature_extractor.feature_size   )
        self.assertTrue(encoded_audios.shape[-2] <= feature_extractor.spectrogram_length   )
        self.assertTrue(encoded_audios.shape[-3] == feature_extractor.num_channels   )






       def 			SCREAMING_SNAKE_CASE_	(   self			,					snake_case   ):





        """simple docstring"""

        lowerCAmelCase__   :				str 			=				load_dataset("hf-internal-testing/librispeech_asr_dummy"			,					"clean"			,					split="validation"   )
        # automatic decoding with librispeech
        lowerCAmelCase__   :				int 			=				ds.sort("id"   ).select(range(snake_case   )   )[:num_samples]["audio"]

        return [x["array"] for x in speech_samples]






       def 			SCREAMING_SNAKE_CASE_	(   self   ):





        """simple docstring"""

        lowerCAmelCase__   :				str 			=				self._load_datasamples(1   )
        lowerCAmelCase__   :				Optional[Any] 			=				TvltFeatureExtractor()
        lowerCAmelCase__   :				Dict 			=				feature_extractor(snake_case			,					return_tensors="pt"   ).audio_values

        self.assertEquals(audio_values.shape			,					(1, 1, 192, 128)   )

        lowerCAmelCase__   :				Dict 			=				torch.tensor([[-0.3_032, -0.2_708], [-0.4_434, -0.4_007]]   )
        self.assertTrue(torch.allclose(audio_values[0, 0, :2, :2]			,					snake_case			,					atol=1e-4   )   )






