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

import numpy as np


def 				A	( lowercase   ,	lowercase			)       ->  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(lowercase   ,	stdin=subprocess.PIPE   ,	stdout=subprocess.PIPE			) as ffmpeg_process:
						UpperCamelCase          =					ffmpeg_process.communicate(lowercase			)
		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(lowercase   ,	np.floataa			)
		if audio.shape[0] == 0:
				raise ValueError('Malformed soundfile'			)
		return audio


def 				A	( lowercase   ,	lowercase   ,	lowercase = "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(lowercase   ,	lowercase			)
		for item in iterator:
				yield item


def 				A	( lowercase   ,	lowercase   ,	lowercase = None   ,	lowercase = None   ,	lowercase = "f32le"   ,	)       ->  int:
		'''simple docstring'''

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

		UpperCamelCase          =					ffmpeg_microphone(lowercase   ,	lowercase   ,	format_for_conversion=lowercase			)
		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(lowercase   ,	(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=lowercase			)
		for item in chunk_bytes_iter(lowercase   ,	lowercase   ,	stride=(stride_left, stride_right)   ,	stream=lowercase			):
				# Put everything back in numpy scale
				UpperCamelCase          =					np.frombuffer(item['raw']   ,	dtype=lowercase			)
				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 				A	( lowercase   ,	lowercase   ,	lowercase   ,	lowercase = False			)       ->  str:
		'''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(lowercase			) < chunk_len:
						UpperCamelCase          =					(_stride_left, 0)
						yield {"raw": acc[:chunk_len], "stride": stride, "partial": True}
				else:
						while len(lowercase			) >= 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(lowercase			) > stride_left:
				UpperCamelCase          =					{'raw': acc, 'stride': (_stride_left, 0)}
				if stream:
						UpperCamelCase          =					False
				yield item


def 				A	( lowercase   ,	lowercase			)       ->  str:
		'''simple docstring'''

		UpperCamelCase          =					2**24  # 16Mo
		try:
				with subprocess.Popen(lowercase   ,	stdout=subprocess.PIPE   ,	bufsize=lowercase			) as ffmpeg_process:
						while True:
								UpperCamelCase          =					ffmpeg_process.stdout.read(lowercase			)
								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


from __future__ import annotations


def 				A	( lowercase   ,	lowercase			)       ->  tuple[int, int]:
		'''simple docstring'''

		if b == 0:
				return (1, 0)
		((UpperCamelCase)     ,  (UpperCamelCase))          =					extended_euclid(lowercase   ,	a % b			)
		UpperCamelCase          =					a // b
		return (y, x - k * y)


def 				A	( lowercase   ,	lowercase   ,	lowercase   ,	lowercase			)       ->  int:
		'''simple docstring'''

		((UpperCamelCase)     ,  (UpperCamelCase))          =					extended_euclid(lowercase   ,	lowercase			)
		UpperCamelCase          =					na * na
		UpperCamelCase          =					ra * x * na + ra * y * na
		return (n % m + m) % m


def 				A	( lowercase   ,	lowercase			)       ->  int:
		'''simple docstring'''

		((UpperCamelCase)     ,  (UpperCamelCase))          =					extended_euclid(lowercase   ,	lowercase			)
		if b < 0:
				UpperCamelCase          =					(b % n + n) % n
		return b


def 				A	( lowercase   ,	lowercase   ,	lowercase   ,	lowercase			)       ->  int:
		'''simple docstring'''

		UpperCamelCase     ,  UpperCamelCase          =					invert_modulo(lowercase   ,	lowercase			), invert_modulo(lowercase   ,	lowercase			)
		UpperCamelCase          =					na * na
		UpperCamelCase          =					ra * x * na + ra * y * na
		return (n % m + m) % m


if __name__ == "__main__":
					from doctest import testmod

					testmod(name="chinese_remainder_theorem", verbose=True)
					testmod(name="chinese_remainder_theorem2", verbose=True)
					testmod(name="invert_modulo", verbose=True)
					testmod(name="extended_euclid", verbose=True)
