
     `i{                         d Z ddlmZmZ ddlZddlmZ ddlm	Z	 ddl
mZmZmZ  ej        e          Z G d d	e          Zd	gZdS )
zFeature extractor class for DAC    )OptionalUnionN   )SequenceFeatureExtractor)BatchFeature)PaddingStrategy
TensorTypeloggingc                   ,    e Zd ZdZddgZ	 	 	 	 dded	ed
edef fdZ	 	 	 	 	 ddee	j
        ee         ee	j
                 eee                  f         deeeeef                  dee         dee         deeeef                  d	ee         defdZ xZS )DacFeatureExtractora>  
    Constructs an Dac feature extractor.

    This feature extractor inherits from [`~feature_extraction_sequence_utils.SequenceFeatureExtractor`] which contains
    most of the main methods. Users should refer to this superclass for more information regarding those methods.

    Args:
        feature_size (`int`, *optional*, defaults to 1):
            The feature dimension of the extracted features. Use 1 for mono, 2 for stereo.
        sampling_rate (`int`, *optional*, defaults to 16000):
            The sampling rate at which the audio waveform should be digitalized, expressed in hertz (Hz).
        padding_value (`float`, *optional*, defaults to 0.0):
            The value that is used for padding.
        hop_length (`int`, *optional*, defaults to 512):
            Overlap length between successive windows.
    input_valuesn_quantizers   >             feature_sizesampling_ratepadding_value
hop_lengthc                 P     t                      j        d|||d| || _        d S )N)r   r   r    )super__init__r   )selfr   r   r   r   kwargs	__class__s         /home/jaya/work/projects/VOICE-AGENT/VIET/agent-env/lib/python3.11/site-packages/transformers/models/dac/feature_extraction_dac.pyr   zDacFeatureExtractor.__init__1   s8     	wl-_lwwpvwww$    NF	raw_audiopadding
truncation
max_lengthreturn_tensorsreturnc                    |2|| j         k    r&t          d|  d| j          d| j          d| d	          n(t                              d| j        j         d           |r|rt          d	          |d
}t          t          |t          t          f          o,t          |d         t          j        t          t          f                    }|rd |D             }n|s;t          |t          j                  s!t          j        |t          j                  }n^t          |t          j                  rD|j        t          j        t          j                  u r|                    t          j                  }|st          j        |          j        g}t%          |          D ]u\  }}	|	j        dk    rt          d|	j                   | j        dk    r)|	j        dk    rt          d|	j        d          d          | j        dk    rt          d          vt-          d|i          }
|                     |
||||| j                  }|r|                    d          |d<   |r#|j        ddt          j        ddf         |_        g }
|                    d          D ]/}	| j        dk    r|	d         }	|
                    |	j                   0|
|d<   ||                    |          }|S )a  
        Main method to featurize and prepare for the model one or several sequence(s).

        Args:
            raw_audio (`np.ndarray`, `list[float]`, `list[np.ndarray]`, `list[list[float]]`):
                The sequence or batch of sequences to be processed. Each sequence can be a numpy array, a list of float
                values, a list of numpy arrays or a list of list of float values. The numpy array must be of shape
                `(num_samples,)` for mono audio (`feature_size = 1`), or `(2, num_samples)` for stereo audio
                (`feature_size = 2`).
            padding (`bool`, `str` or [`~utils.PaddingStrategy`], *optional*, defaults to `True`):
                Select a strategy to pad the returned sequences (according to the model's padding side and padding
                index) among:

                - `True` or `'longest'`: Pad to the longest sequence in the batch (or no padding if only a single
                  sequence if provided).
                - `'max_length'`: Pad to a maximum length specified with the argument `max_length` or to the maximum
                  acceptable input length for the model if that argument is not provided.
                - `False` or `'do_not_pad'` (default): No padding (i.e., can output a batch with sequences of different
                  lengths).
            truncation (`bool`, *optional*, defaults to `False`):
                Activates truncation to cut input sequences longer than `max_length` to `max_length`.
            max_length (`int`, *optional*):
                Maximum length of the returned list and optionally padding length (see above).
            return_tensors (`str` or [`~utils.TensorType`], *optional*, default to 'pt'):
                If set, will return tensors instead of list of python integers. Acceptable values are:

                - `'tf'`: Return TensorFlow `tf.constant` objects.
                - `'pt'`: Return PyTorch `torch.Tensor` objects.
                - `'np'`: Return Numpy `np.ndarray` objects.
            sampling_rate (`int`, *optional*):
                The sampling rate at which the `audio` input was sampled. It is strongly recommended to pass
                `sampling_rate` at the forward call to prevent silent errors.
        Nz3The model corresponding to this feature extractor: z& was trained using a sampling rate of zB. Please make sure that the provided audio input was sampled with z	 and not .zDIt is strongly recommended to pass the `sampling_rate` argument to `zN()`. Failing to do so can result in silent errors that might be hard to debug.zABoth padding and truncation were set. Make sure you only set one.Tr   c                 X    g | ]'}t          j        |t           j                   j        (S )dtype)npasarrayfloat32T).0audios     r   
<listcomp>z0DacFeatureExtractor.__call__.<locals>.<listcomp>~   s,    VVV5E<<<>VVVr   r)      z6Expected input shape (channels, length) but got shape r   z$Expected mono audio but example has z	 channelsz$Stereo audio isn't supported for nowr   )r#   r"   r!   return_attention_maskpad_to_multiple_ofattention_maskpadding_mask).N)r   
ValueErrorloggerwarningr   __name__bool
isinstancelisttupler+   ndarrayr,   r-   r*   float64astyper.   	enumeratendimshaper   r   padr   popr   newaxisappendconvert_to_tensors)r   r    r!   r"   r#   r$   r   
is_batchedidxexampler   padded_inputss               r   __call__zDacFeatureExtractor.__call__<   s   T $ 222 F$ F F*F F*F F5BF F F   3 NN\W[WeWn \ \ \  
  	z 	`aaa_Gy4-00jj1PRPZ\acgOh6i6i
 

  	5VVIVVVII 	5Jy"*$E$E 	5
9BJ???II	2:.. 	59?bhrzFZFZ3Z3Z!((44I  	2I..01I &i00 	I 	ILC|a !iZaZg!i!ijjj A%%',!*;*; !dVXHY!d!d!deee A%% !GHHH & $^Y$?@@ !!")# ! 
 
  	P,9,=,=>N,O,OM.) 	V)6)CAAArzSTSTSTDT)UM&$((88 	+ 	+G A%%!),	****(4n%%)<<^LLMr   )r   r   r   r   )NFNNN)r;   
__module____qualname____doc__model_input_namesintfloatr   r   r+   r@   r>   r   r<   strr   r	   r   rO   __classcell__)r   s   @r   r   r      s\        " (8 ""	% 	%	% 	% 		%
 	% 	% 	% 	% 	% 	% @D%*$(;?'+o oT%[$rz2BDeDUUVo %c? :;<o TN	o
 SMo !sJ!78o  }o 
o o o o o o o or   r   )rR   typingr   r   numpyr+   !feature_extraction_sequence_utilsr   feature_extraction_utilsr   utilsr   r	   r
   
get_loggerr;   r9   r   __all__r   r   r   <module>r_      s    & % " " " " " " " "     I I I I I I 4 4 4 4 4 4 9 9 9 9 9 9 9 9 9 9 
	H	%	%N N N N N2 N N Nb !
!r   