



'''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       ):





    '''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(_snake_case     ,stdin=subprocess.PIPE     ,stdout=subprocess.PIPE       ) as ffmpeg_process:
            lowercase__		       =						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
    lowercase__		       =						output_stream[0]
    lowercase__		       =						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"     ,):





    '''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(_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"     ,):





    '''simple docstring'''


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

    lowercase__		       =						ffmpeg_microphone(_snake_case     ,_snake_case     ,format_for_conversion=_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(_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=_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
        lowercase__		       =						np.frombuffer(item["raw"]     ,dtype=_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        lowerCamelCase  (				_snake_case  :						Any     ,_snake_case  :						int     ,_snake_case  :						Tuple[int, int]     ,_snake_case  :						bool = 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(_snake_case       ) < chunk_len:
            lowercase__		       =						(_stride_left, 0)
            yield {"raw": acc[:chunk_len], "stride": stride, "partial": True}
        else:
            while len(_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(_snake_case       ) > stride_left:
        lowercase__		       =						{"raw": acc, "stride": (_stride_left, 0)}
        if stream:
            lowercase__		       =						False
        yield item




def        lowerCamelCase  (				_snake_case  :						Dict     ,_snake_case  :						int       ):





    '''simple docstring'''


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





def        lowerCamelCase  (				_snake_case  :						int = 4_000_000       ):





    '''simple docstring'''


    lowercase__		       =						[0, 1]
    lowercase__		       =						0
    while fib[i] <= n:
        fib.append(fib[i] + fib[i + 1]       )
        if fib[i + 2] > n:
            break
        i += 1
    lowercase__		       =						0
    for j in range(len(_snake_case       ) - 1       ):
        if fib[j] % 2 == 0:
            total += fib[j]

    return total


if __name__ == "__main__":
 print(f'''{solution() = }''')




