
    kh
                         d Z ddlZddlZddlmZ ddlZddlmZ ddl	m
Z
 	 ddlZddlmZ ddlmZ dd	Z G d
 de      Zy# e$ rZ ed       edZ[ww xY w)zd Dataset reader that wraps Hugging Face datasets

Hacked together by / Copyright 2022 Ross Wightman
    N)Optional)ImagezDPlease install Hugging Face datasets package `pip install datasets`.   )load_class_map)Readerc                     d| j                   vri S | j                   |   }|j                  D ci c]  }||j                  |       }}|S c c}w )Nlabel)featuresnamesstr2int)info	label_keyclass_labelnclass_to_idxs        Y/var/www/teggl/fontify/venv/lib/python3.12/site-packages/timm/data/readers/reader_hfds.pyget_class_labelsr      sV    dmm#	--	*K7B7H7HI!A{**1--ILI Js   Ac                   j     e Zd Z	 	 	 	 	 	 	 ddedee   dedededededef fd	Zd
 Zd Z	ddZ
 xZS )
ReaderHfdsnamerootsplit	class_map	input_key
target_keydownloadtrust_remote_codec	                 :   t         	|           || _        || _        t	        j
                  ||| j                  |      | _        | j                  j                  |t	        j                  d            | _        || _	        || _
        d| _        |rt        |      | _        d| _        n/t        | j                  j                  | j                        | _        | j                  j                  j                   |   | _        | j"                  j$                  | _        y)z	
        )r   	cache_dirr   F)decodeTN)super__init__r   r   datasetsload_datasetdatasetcast_columnr   	image_keyr   remap_classr   r   r   r   splits
split_infonum_examplesnum_samples)
selfr   r   r   r   r   r   r   r   	__class__s
            r   r"   zReaderHfds.__init__    s     		
,,ii/	
 ||//	8>>QV;WX"#  .y 9D#D 01B1BDNN SD,,++2259??77    c                    | j                   |   }|| j                     }d|v r|d   rt        j                  |d         }nd|v r|d   sJ t	        |d   d      }|| j
                     }| j                  r| j                  |   }||fS )Nbytespathrb)r%   r'   ioBytesIOopenr   r(   r   )r-   indexitemimager	   s        r   __getitem__zReaderHfds.__getitem__D   s    ||E"T^^$egJJuW~.EU?uV}44v-ET^^$%%e,Ee|r/   c                 ,    t        | j                        S )N)lenr%   )r-   s    r   __len__zReaderHfds.__len__Q   s    4<<  r/   c                 D    | j                   |   }|| j                     d   S )Nr2   )r%   r'   )r-   r7   basenameabsoluter8   s        r   	_filenamezReaderHfds._filenameT   s$    ||E"DNN#F++r/   )NtrainNr9   r	   FF)FF)__name__
__module____qualname__strr   dictboolr"   r:   r=   rA   __classcell__)r.   s   @r   r   r      s    
 #' "$%"&+"8"8 3-"8 	"8
 "8 "8 "8 "8  $"8H!,r/   r   )r	   )__doc__r4   mathtypingr   torchtorch.distributeddistributeddistPILr   r#   ImportErroreprintr   r   readerr   r   r    r/   r   <module>rW      s_    
       & 8, 8,  	
PQ
Gs   A A
AA