U 5Afq+ @sddlZddlZddlZddlmZmZmZddlZe e ej dddZ de e eeeddd Zde e ee eeee e fe feeed d d Zde ee e fedddZe dddZddZdS)N)OptionalTupleUnion)bpayload sampling_ratereturnc Cs|}d}d}dddd|d|d|d d d d g }z.tj|tjtjd }||}W5QRXWn,tk r}ztd|W5d}~XYnX|d} t| tj} | j ddkrtd| S)z? Helper function to read an audio file through ffmpeg. 1f32leffmpeg-izpipe:0-ac-ar-f -hide_banner -loglevelquietpipe:1)stdinstdoutzFffmpeg was not found but is required to load audio files from filenameNra Soundfile is either not in the correct format or is malformed. Ensure that the soundfile has a valid audio file extension (e.g. wav, flac or mp3) and is not corrupted. If reading from a remote URL, ensure that the URL is the full address to **download** the audio file.) subprocessPopenPIPE communicateFileNotFoundError ValueErrornp frombufferfloat32shape) rraracformat_for_conversionffmpeg_commandffmpeg_processZ output_streamerrorZ out_bytesaudior&F/tmp/pip-unpacked-wheel-zw5xktn0/transformers/pipelines/audio_utils.py ffmpeg_read s:r(r )rchunk_length_sr!ffmpeg_input_deviceccs|}d}|dkrd}n|dkr&d}ntd|dt}|dkrTd }|pPd } n,|d krjd }|pfd } n|dkrd}|p~t} dd|d| d|d|d|ddddddg} tt|||} t| | } | D] } | VqdS)a Helper function to read audio from a microphone using ffmpeg. The default input device will be used unless another input device is specified using the `ffmpeg_input_device` argument. Uses 'alsa' on Linux, 'avfoundation' on MacOS and 'dshow' on Windows. Arguments: sampling_rate (`int`): The sampling_rate to use when reading the data from the microphone. Try using the model's sampling_rate to avoid resampling later. chunk_length_s (`float` or `int`): The length of the maximum chunk of audio to be sent returned. format_for_conversion (`str`, defaults to `f32le`): The name of the format of the audio samples to be returned by ffmpeg. The standard is `f32le`, `s16le` could also be used. ffmpeg_input_device (`str`, *optional*): The indentifier of the input device to be used by ffmpeg (i.e. ffmpeg's '-i' argument). If unset, the default input device will be used. See `https://www.ffmpeg.org/ffmpeg-devices.html#Input-Devices` for how to specify and list input devices. Returns: A generator yielding audio chunks of `chunk_length_s` seconds as `bytes` objects of length `int(round(sampling_rate * chunk_length_s)) * size_of_sample`. rs16ler Unhandled format ` `. Please use `s16le` or `f32le`LinuxZalsadefaultDarwinZ avfoundationz:defaultWindowsdshowr rr r r z-fflagsZnobufferrrrrN)rplatformsystem_get_microphone_nameintround_ffmpeg_stream)rr)r!r*rr size_of_sampler6Zformat_Zinput_r" chunk_leniteratoritemr&r&r'ffmpeg_microphone1sN    r?)rr)stream_chunk_sstride_length_sr!r*ccsb|dk r|}n|}t||||d}|dkr6tj}d} n$|dkrJtj}d} ntd|d|dkrj|d }tt||| } t|ttfr||g}tt||d | } tt||d | } t j } t j |d }t || | | fd dD]n}tj |d|d|d<|dd | |dd | f|d<||d<| |7} t j | d|krVq|VqdS)a Helper function to read audio from a microphone using ffmpeg. This will output `partial` overlapping chunks starting from `stream_chunk_s` (if it is defined) until `chunk_length_s` is reached. It will make use of striding to avoid errors on the "sides" of the various chunks. The default input device will be used unless another input device is specified using the `ffmpeg_input_device` argument. Uses 'alsa' on Linux, 'avfoundation' on MacOS and 'dshow' on Windows. Arguments: sampling_rate (`int`): The sampling_rate to use when reading the data from the microphone. Try using the model's sampling_rate to avoid resampling later. chunk_length_s (`float` or `int`): The length of the maximum chunk of audio to be sent returned. This includes the eventual striding. stream_chunk_s (`float` or `int`): The length of the minimal temporary audio to be returned. stride_length_s (`float` or `int` or `(float, float)`, *optional*): The length of the striding to be used. Stride is used to provide context to a model on the (left, right) of an audio sample but without using that part to actually make the prediction. Setting this does not change the length of the chunk. format_for_conversion (`str`, *optional*, defaults to `f32le`): The name of the format of the audio samples to be returned by ffmpeg. The standard is `f32le`, `s16le` could also be used. ffmpeg_input_device (`str`, *optional*): The identifier of the input device to be used by ffmpeg (i.e. ffmpeg's '-i' argument). If unset, the default input device will be used. See `https://www.ffmpeg.org/ffmpeg-devices.html#Input-Devices` for how to specify and list input devices. Return: A generator yielding dictionaries of the following form `{"sampling_rate": int, "raw": np.array(), "partial" bool}` With optionally a `"stride" (int, int)` key if `stride_length_s` is defined. `stride` and `raw` are all expressed in `samples`, and `partial` is a boolean saying if the current yield item is a whole chunk, or a partial temporary result to be later replaced by another larger chunk. N)r!r*r+r,r r-r.r/r)secondsT)stridestreamraw)dtyperEr )r?rZint16rrr8r9 isinstancefloatdatetimenow timedeltachunk_bytes_iterr)rr)r@rAr!r*Zchunk_sZ microphonerHr;r< stride_left stride_rightZ audio_timedeltar>r&r&r'ffmpeg_microphone_live{sF*  rSF)r<rErFc csd}|\}}|||kr2td|d|d|d}|D]}||7}|rvt||krv|df}|d||ddVq:t||kr:||f}|d||d } |rd | d <| V|}||||d}qvq:t||kr||dfd } |rd | d <| VdS) z Reads raw bytes from an iterator and does chunks of length `chunk_len`. Optionally adds `stride` to each chunks to get overlaps. `stream` is used to return partial results even if a full `chunk_len` is not yet available. z5Stride needs to be strictly smaller than chunk_len: (z, z) vs rNT)rGrEpartial)rGrEFrU)rlen) r=r<rErFaccrPrQZ _stride_leftrGr>r&r&r'rOs2   rO)buflenc csvd}z@tj|tj|d$}|j|}|dkr0q8|VqW5QRXWn,tk rp}ztd|W5d}~XYnXdS)zJ Internal function to create the generator of data through ffmpeg i)rbufsizerTzHffmpeg was not found but is required to stream audio files from filenameN)rrrrreadrr)r"rXrYr#rGr$r&r&r'r:s r:cCsdddddddg}z\tj|dtjd d }d d |jD}|rl|d dd}td|d|WSWntk rtdYnXdS)z3 Retrieve the microphone name in Windows . r z -list_devicestruerr4r Tzutf-8)textstderrencodingcSsg|]}d|kr|qS)z(audio)r&).0liner&r&r' sz(_get_microphone_name..r"rCzUsing microphone: zaudio=zOffmpeg was not found. Please install it or make sure it is in your system PATH.r1)rrunrr^ splitlinessplitprintr)commandZffmpeg_devicesZmicrophone_linesZmicrophone_namer&r&r'r7sr7)r N)NNr N)F)rLr5rtypingrrrZnumpyrbytesr8arrayr(rKstrr?rSboolrOr:r7r&r&r&r's8* M T#