


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

import numpy as np
def       _a			(				SCREAMING_SNAKE_CASE						,    SCREAMING_SNAKE_CASE					):


		"""simple docstring"""




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

		try:
				with subprocess.Popen(SCREAMING_SNAKE_CASE						,    stdin=subprocess.PIPE						,    stdout=subprocess.PIPE					) as ffmpeg_process:
						lowercase__						=				ffmpeg_process.communicate(SCREAMING_SNAKE_CASE					)
		except FileNotFoundError as error:
				raise ValueError('''ffmpeg was not found but is required to load audio files from filename'''					) from error
		lowercase__						=				output_stream[0]
		lowercase__						=				np.frombuffer(SCREAMING_SNAKE_CASE						,    np.floataa					)
		if audio.shape[0] == 0:
				raise ValueError('''Malformed soundfile'''					)
		return audio
def       _a			(				SCREAMING_SNAKE_CASE						,    SCREAMING_SNAKE_CASE						,    SCREAMING_SNAKE_CASE = "f32le"						,    ):


		"""simple docstring"""




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

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

		lowercase__						=				[
		    '''ffmpeg''',
		    '''-f''',
		    format_,
		    '''-i''',
		    input_,
		    '''-ac''',
		    ac,
		    '''-ar''',
		    ar,
		    '''-f''',
		    format_for_conversion,
		    '''-fflags''',
		    '''nobuffer''',
		    '''-hide_banner''',
		    '''-loglevel''',
		    '''quiet''',
		    '''pipe:1''',
		]
		lowercase__						=				int(round(sampling_rate * chunk_length_s					)					) * size_of_sample
		lowercase__						=				_ffmpeg_stream(SCREAMING_SNAKE_CASE						,    SCREAMING_SNAKE_CASE					)
		for item in iterator:
				yield item
def       _a			(				SCREAMING_SNAKE_CASE						,    SCREAMING_SNAKE_CASE						,    SCREAMING_SNAKE_CASE = None						,    SCREAMING_SNAKE_CASE = None						,    SCREAMING_SNAKE_CASE = "f32le"						,    ):


		"""simple docstring"""




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

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

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

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


		"""simple docstring"""




		lowercase__						=				B''''''
		lowercase__					,		lowercase__						=				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}'					)
		lowercase__						=				0
		for raw in iterator:
				acc += raw
				if stream and len(SCREAMING_SNAKE_CASE					) < chunk_len:
						lowercase__						=				(_stride_left, 0)
						yield {"raw": acc[:chunk_len], "stride": stride, "partial": True}
				else:
						while len(SCREAMING_SNAKE_CASE					) >= chunk_len:
								# We are flushing the accumulator
								lowercase__						=				(_stride_left, stride_right)
								lowercase__						=				{'''raw''': acc[:chunk_len], '''stride''': stride}
								if stream:
										lowercase__						=				False
								yield item
								lowercase__						=				stride_left
								lowercase__						=				acc[chunk_len - stride_left - stride_right :]
    # Last chunk
		if len(SCREAMING_SNAKE_CASE					) > stride_left:
				lowercase__						=				{'''raw''': acc, '''stride''': (_stride_left, 0)}
				if stream:
						lowercase__						=				False
				yield item
def       _a			(				SCREAMING_SNAKE_CASE						,    SCREAMING_SNAKE_CASE					):


		"""simple docstring"""




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






from __future__ import annotations

from collections import namedtuple
from dataclasses import dataclass


@dataclass
class 	_a							:
							_lowercase     :      int
							_lowercase     :      TreeNode | None  				=			None
							_lowercase     :      TreeNode | None  				=			None
lowerCAmelCase	=							namedtuple('CoinsDistribResult', 'moves excess')
def       _a			(				SCREAMING_SNAKE_CASE					):


		"""simple docstring"""




		if root is None:
				return 0

		# Validation
		def count_nodes(SCREAMING_SNAKE_CASE					) -> int:
				if node is None:
						return 0

				return count_nodes(node.left					) + count_nodes(node.right					) + 1

		def count_coins(SCREAMING_SNAKE_CASE					) -> int:
				if node is None:
						return 0

				return count_coins(node.left					) + count_coins(node.right					) + node.data

		if count_nodes(SCREAMING_SNAKE_CASE					) != count_coins(SCREAMING_SNAKE_CASE					):
				raise ValueError('''The nodes number should be same as the number of coins'''					)

		# Main calculation
		def get_distrib(SCREAMING_SNAKE_CASE					) -> CoinsDistribResult:

				if node is None:
						return CoinsDistribResult(0						,    1					)

				lowercase__					,		lowercase__						=				get_distrib(node.left					)
				lowercase__					,		lowercase__						=				get_distrib(node.right					)

				lowercase__						=				1 - left_distrib_excess
				lowercase__						=				1 - right_distrib_excess

				lowercase__						=				(
				    left_distrib_moves
				    + right_distrib_moves
				    + abs(SCREAMING_SNAKE_CASE					)
				    + abs(SCREAMING_SNAKE_CASE					)
				)
				lowercase__						=				node.data - coins_to_left - coins_to_right

				return CoinsDistribResult(SCREAMING_SNAKE_CASE						,    SCREAMING_SNAKE_CASE					)

		return get_distrib(SCREAMING_SNAKE_CASE					)[0]


if __name__ == "__main__":
			import doctest

			doctest.testmod()


