
    RЦiT
                     h    S r SSKrSSKrSSKJr  SSKJr  SSKJr  SSK	J
r
  SS jr " S	 S
\
5      rg)zA dataset reader that reads single tarfile based datasets

This reader can read datasets consisting if a single tarfile containing images.
I am planning to deprecated it in favour of ParerImageInTar.

Hacked together by / Copyright 2020 Ross Wightman
    N)natural_key   )load_class_map)get_img_extensions)Readerc                    [        SS9n/ n/ nU R                  " 5        H  nUR                  5       (       d  M  [        R                  R                  UR                  5      u  px[        R                  R                  U5      n	[        R                  R                  U5      S   n
U
R                  5       U;   d  M  UR                  U5        UR                  U	5        M     UcA  [        U5      n[        [        U[        S95      n[        U5       VVs0 s H  u  pX_M	     nnn[        XE5       VVs/ s H  u  nnUU;   d  M  XU   4PM     nnnU(       a  [        US S9nUU4$ s  snnf s  snnf )NT)as_setr   )keyc                 2    [        U S   R                  5      $ Nr   )r   path)ks    a/var/www/html/ai-image-ml/venv/lib/python3.13/site-packages/timm/data/readers/reader_image_tar.py<lambda>!extract_tarinfo.<locals>.<lambda>%   s    TUVWTXT]T]H^    )r   
getmembersisfileosr   splitbasenamesplitextlowerappendsetlistsortedr   	enumeratezip)tarfileclass_to_idxsort
extensionsfileslabelstidirnamer   labelextunique_labelssorted_labelsidxcfltarinfo_and_targetss                     r   extract_tarinfor1      s=   #40JEF  "yy{{GGMM"''2  )ggx(+99;*$LLMM%  # FVM{CD-6}-EF-E63-EF<?<Nd<NDAqRSWcRc/AA/<Nd$%8>^_,,	 Gds   E'3E-
E-c                   F   ^  \ rS rSrSrSU 4S jjrS rS rS	S jrSr	U =r
$ )
ReaderImageTar)   zSingle tarfile dataset where classes are mapped to folders within tar
NOTE: This class is being deprecated in favour of the more capable ReaderImageInTar that can
operate on folders of tars or tars in tars.
c                 b  > [         TU ]  5         S nU(       a  [        X!5      n[        R                  R                  U5      (       d   eXl        [        R                  " U5       n[        XC5      u  U l
        U l        S S S 5        U R                  U l        S U l        g ! , (       d  f       N'= fN)super__init__r   r   r   r   rootr    openr1   samplesr!   imgs)selfr9   	class_mapr!   tf	__class__s        r   r8   ReaderImageTar.__init__.   s    )):Lww~~d####	\\$2.=b.O+DL$+  LL	  s   &B  
B.c                     U R                   c%  [         R                  " U R                  5      U l         U R                  U   u  p#U R                   R	                  U5      nXC4$ r6   )r    r:   r9   r;   extractfile)r=   indextarinfotargetfileobjs        r   __getitem__ReaderImageTar.__getitem__<   sL    <<"<<		2DL,,u-,,**73r   c                 ,    [        U R                  5      $ r6   )lenr;   )r=   s    r   __len__ReaderImageTar.__len__C   s    4<<  r   c                     U R                   U   S   R                  nU(       a  [        R                  R	                  U5      nU$ r   )r;   namer   r   r   )r=   rD   r   absolutefilenames        r   	_filenameReaderImageTar._filenameF   s7    <<&q)..ww''1Hr   )r!   r<   r9   r;   r    ) )FF)__name__
__module____qualname____firstlineno____doc__r8   rH   rL   rR   __static_attributes____classcell__)r@   s   @r   r3   r3   )   s!    ! r   r3   )NT)rY   r   r    timm.utils.miscr   r>   r   img_extensionsr   readerr   r1   r3    r   r   <module>r`      s/    
  ' % . -.!V !r   