'''simple docstring'''





import datetime
import platform
import subprocess
from typing import Optional, Tuple, Union

import numpy as np





def      lowerCAmelCase_    ( snake_case_	:			bytes ,   snake_case_	:			int      )   ->				np.array:


     '''simple docstring'''




     UpperCAmelCase_	   =       f"""{sampling_rate}"""
     UpperCAmelCase_	   =       "1"
     UpperCAmelCase_	   =       "f32le"
     UpperCAmelCase_	   =       [
         "ffmpeg",
         "-i",
         "pipe:0",
         "-ac",
         ac,
         "-ar",
         ar,
         "-f",
         format_for_conversion,
         "-hide_banner",
         "-loglevel",
         "quiet",
         "pipe:1",
     ]

     try:
          with subprocess.Popen(snake_case_ ,   stdin=subprocess.PIPE ,   stdout=subprocess.PIPE      ) as ffmpeg_process:
               UpperCAmelCase_	   =       ffmpeg_process.communicate(snake_case_      )
     except FileNotFoundError as error:
          raise ValueError("ffmpeg was not found but is required to load audio files from filename"      ) from error
     UpperCAmelCase_	   =       output_stream[0]
     UpperCAmelCase_	   =       np.frombuffer(snake_case_ ,   np.floataa      )
     if audio.shape[0] == 0:
          raise ValueError("Malformed soundfile"      )
     return audio





def      lowerCAmelCase_    ( snake_case_	:			int ,   snake_case_	:			float ,   snake_case_	:			str = "f32le" ,   )   ->				Union[str, Any]:


     '''simple docstring'''




     UpperCAmelCase_	   =       f"""{sampling_rate}"""
     UpperCAmelCase_	   =       "1"
     if format_for_conversion == "s16le":
          UpperCAmelCase_	   =       2
     elif format_for_conversion == "f32le":
          UpperCAmelCase_	   =       4
     else:
          raise ValueError(f"""Unhandled format `{format_for_conversion}`. Please use `s16le` or `f32le`"""      )

     UpperCAmelCase_	   =       platform.system()
     if system == "Linux":
          UpperCAmelCase_	   =       "alsa"
          UpperCAmelCase_	   =       "default"
     elif system == "Darwin":
          UpperCAmelCase_	   =       "avfoundation"
          UpperCAmelCase_	   =       ":0"
     elif system == "Windows":
          UpperCAmelCase_	   =       "dshow"
          UpperCAmelCase_	   =       "default"

     UpperCAmelCase_	   =       [
         "ffmpeg",
         "-f",
         format_,
         "-i",
         input_,
         "-ac",
         ac,
         "-ar",
         ar,
         "-f",
         format_for_conversion,
         "-fflags",
         "nobuffer",
         "-hide_banner",
         "-loglevel",
         "quiet",
         "pipe:1",
     ]
     UpperCAmelCase_	   =       int(round(sampling_rate * chunk_length_s      )      ) * size_of_sample
     UpperCAmelCase_	   =       _ffmpeg_stream(snake_case_ ,   snake_case_      )
     for item in iterator:
          yield item





def      lowerCAmelCase_    ( snake_case_	:			int ,   snake_case_	:			float ,   snake_case_	:			Optional[int] = None ,   snake_case_	:			Optional[Union[Tuple[float, float], float]] = None ,   snake_case_	:			str = "f32le" ,   )   ->				List[Any]:


     '''simple docstring'''




     if stream_chunk_s is not None:
          UpperCAmelCase_	   =       stream_chunk_s
     else:
          UpperCAmelCase_	   =       chunk_length_s

     UpperCAmelCase_	   =       ffmpeg_microphone(snake_case_ ,   snake_case_ ,   format_for_conversion=snake_case_      )
     if format_for_conversion == "s16le":
          UpperCAmelCase_	   =       np.intaa
          UpperCAmelCase_	   =       2
     elif format_for_conversion == "f32le":
          UpperCAmelCase_	   =       np.floataa
          UpperCAmelCase_	   =       4
     else:
          raise ValueError(f"""Unhandled format `{format_for_conversion}`. Please use `s16le` or `f32le`"""      )

     if stride_length_s is None:
          UpperCAmelCase_	   =       chunk_length_s / 6
     UpperCAmelCase_	   =       int(round(sampling_rate * chunk_length_s      )      ) * size_of_sample
     if isinstance(snake_case_ ,   (int, float)      ):
          UpperCAmelCase_	   =       [stride_length_s, stride_length_s]

     UpperCAmelCase_	   =       int(round(sampling_rate * stride_length_s[0]      )      ) * size_of_sample
     UpperCAmelCase_	   =       int(round(sampling_rate * stride_length_s[1]      )      ) * size_of_sample
     UpperCAmelCase_	   =       datetime.datetime.now()
     UpperCAmelCase_	   =       datetime.timedelta(seconds=snake_case_      )
     for item in chunk_bytes_iter(snake_case_ ,   snake_case_ ,   stride=(stride_left, stride_right) ,   stream=snake_case_      ):
          # Put everything back in numpy scale
          UpperCAmelCase_	   =       np.frombuffer(item["raw"] ,   dtype=snake_case_      )
          UpperCAmelCase_	   =       (
              item["stride"][0] // size_of_sample,
              item["stride"][1] // size_of_sample,
          )
          UpperCAmelCase_	   =       sampling_rate
          audio_time += delta
          if datetime.datetime.now() > audio_time + 10 * delta:
               # We're late !! SKIP
               continue
          yield item





def      lowerCAmelCase_    ( snake_case_	:			Optional[int] ,   snake_case_	:			int ,   snake_case_	:			Tuple[int, int] ,   snake_case_	:			bool = False      )   ->				Tuple:


     '''simple docstring'''




     UpperCAmelCase_	   =       B""
     UpperCAmelCase_   ,			UpperCAmelCase_	   =       stride
     if stride_left + stride_right >= chunk_len:
          raise ValueError(
              f"""Stride needs to be strictly smaller than chunk_len: ({stride_left}, {stride_right}) vs {chunk_len}"""      )
     UpperCAmelCase_	   =       0
     for raw in iterator:
          acc += raw
          if stream and len(snake_case_      ) < chunk_len:
               UpperCAmelCase_	   =       (_stride_left, 0)
               yield {"raw": acc[:chunk_len], "stride": stride, "partial": True}
          else:
               while len(snake_case_      ) >= chunk_len:
                    # We are flushing the accumulator
                    UpperCAmelCase_	   =       (_stride_left, stride_right)
                    UpperCAmelCase_	   =       {"raw": acc[:chunk_len], "stride": stride}
                    if stream:
                         UpperCAmelCase_	   =       False
                    yield item
                    UpperCAmelCase_	   =       stride_left
                    UpperCAmelCase_	   =       acc[chunk_len - stride_left - stride_right :]
    # Last chunk
     if len(snake_case_      ) > stride_left:
          UpperCAmelCase_	   =       {"raw": acc, "stride": (_stride_left, 0)}
          if stream:
               UpperCAmelCase_	   =       False
          yield item






def      lowerCAmelCase_    ( snake_case_	:			Dict ,   snake_case_	:			int      )   ->				int:


     '''simple docstring'''




     UpperCAmelCase_	   =       2**24  # 16Mo
     try:
          with subprocess.Popen(snake_case_ ,   stdout=subprocess.PIPE ,   bufsize=snake_case_      ) as ffmpeg_process:
               while True:
                    UpperCAmelCase_	   =       ffmpeg_process.stdout.read(snake_case_      )
                    if raw == b"":
                         break
                    yield raw
     except FileNotFoundError as error:
          raise ValueError("ffmpeg was not found but is required to stream audio files from filename"      ) from error





'''simple docstring'''





import os
import time

import pytest

from datasets.utils.filelock import FileLock, Timeout





def      lowerCAmelCase_    ( snake_case_	:			Union[str, Any]      )   ->				Optional[int]:


     '''simple docstring'''




     UpperCAmelCase_	   =       FileLock(str(tmpdir / "foo.lock"      )      )
     UpperCAmelCase_	   =       FileLock(str(tmpdir / "foo.lock"      )      )
     UpperCAmelCase_	   =       0.01
     with locka.acquire():
          with pytest.raises(snake_case_      ):
               UpperCAmelCase_	   =       time.time()
               locka.acquire(snake_case_      )
               assert time.time() - _start > timeout






def      lowerCAmelCase_    ( snake_case_	:			int      )   ->				Optional[int]:


     '''simple docstring'''




     UpperCAmelCase_	   =       "a" * 10_00 + ".lock"
     UpperCAmelCase_	   =       FileLock(str(tmpdir / filename      )      )
     assert locka._lock_file.endswith(".lock"      )
     assert not locka._lock_file.endswith(snake_case_      )
     assert len(os.path.basename(locka._lock_file      )      ) <= 2_55
     UpperCAmelCase_	   =       FileLock(tmpdir / filename      )
     with locka.acquire():
          with pytest.raises(snake_case_      ):
               locka.acquire(0      )




