o
    )i'!                     @   sD  d dl Z d dlZd dlZd dlmZ d dlmZmZmZm	Z	m
Z
mZ d dlZddlmZ ddlmZmZmZ ddd	d
ZdZG dd deZd dede
e deeeef e	e f fddZdedededdfddZd dede
e ddfddZd!dede
e deddfddZ	d"dede
e de
e	e  deddf
ddZdS )#    N)contextmanager)AnyDictIteratorListOptionalTuple   )ImageFolder)check_integrityextract_archiveverify_str_arg)zILSVRC2012_img_train.tarZ 1d675b47d978889d74fa0da5fadfb00e)zILSVRC2012_img_val.tarZ 29b22e2961454d5413ddabcf34fc5622)zILSVRC2012_devkit_t12.tar.gzZ fa75699e90414af021442c21a62c3abf)trainvaldevkitzmeta.binc                	       s^   e Zd ZdZddedededdf fdd	Zdd
dZedefddZ	defddZ
  ZS )ImageNetaN  `ImageNet <http://image-net.org/>`_ 2012 Classification Dataset.

    .. note::
        Before using this class, it is required to download ImageNet 2012 dataset from
        `here <https://image-net.org/challenges/LSVRC/2012/2012-downloads.php>`_ and
        place the files ``ILSVRC2012_devkit_t12.tar.gz`` and ``ILSVRC2012_img_train.tar``
        or ``ILSVRC2012_img_val.tar`` based on ``split`` in the root directory.

    Args:
        root (string): Root directory of the ImageNet Dataset.
        split (string, optional): The dataset split, supports ``train``, or ``val``.
        transform (callable, optional): A function/transform that  takes in an PIL image
            and returns a transformed version. E.g, ``transforms.RandomCrop``
        target_transform (callable, optional): A function/transform that takes in the
            target and transforms it.
        loader (callable, optional): A function to load an image given its path.

     Attributes:
        classes (list): List of the class name tuples.
        class_to_idx (dict): Dict with items (class_name, class_index).
        wnids (list): List of the WordNet IDs.
        wnid_to_idx (dict): Dict with items (wordnet_id, class_index).
        imgs (list): List of (image path, class_index) tuples
        targets (list): The class_index value for each image in the dataset
    r   rootsplitkwargsreturnNc                    s   t j| }| _t|dd| _|   t| jd  t j	| j
fi | || _| j| _| j| _ fdd| jD | _dd t| jD | _d S )Nr   )r   r   r   c                       g | ]} | qS  r   ).0wnidwnid_to_classesr   l/var/www/html/eduruby.in/lip-sync/lip-sync-env/lib/python3.10/site-packages/torchvision/datasets/imagenet.py
<listcomp><       z%ImageNet.__init__.<locals>.<listcomp>c                 S   s    i | ]\}}|D ]}||qqS r   r   )r   idxclssclsr   r   r   
<dictcomp>=        z%ImageNet.__init__.<locals>.<dictcomp>)ospath
expanduserr   r   r   parse_archivesload_meta_filesuper__init__split_folderclasseswnidsZclass_to_idxZwnid_to_idx	enumerate)selfr   r   r   	__class__r   r   r*   0   s   zImageNet.__init__c                 C   sd   t tj| jtst| j tj| js.| j	dkr"t
| j d S | j	dkr0t| j d S d S d S )Nr   r   )r   r$   r%   joinr   	META_FILEparse_devkit_archiveisdirr+   r   parse_train_archiveparse_val_archiver/   r   r   r   r'   ?   s   


zImageNet.parse_archivesc                 C   s   t j| j| jS N)r$   r%   r2   r   r   r8   r   r   r   r+   I   s   zImageNet.split_folderc                 C   s   dj di | jS )NzSplit: {split}r   )format__dict__r8   r   r   r   
extra_reprM   s   zImageNet.extra_repr)r   )r   N)__name__
__module____qualname____doc__strr   r*   r'   propertyr+   r<   __classcell__r   r   r0   r   r      s     

r   r   filer   c                 C   s@   |d u rt }tj| |}t|rt|S d}t||| )NzThe meta file {} is not present in the root directory or is corrupted. This file is automatically created by the ImageNet dataset.)	r3   r$   r%   r2   r   torchloadRuntimeErrorr:   )r   rD   msgr   r   r   r(   Q   s   
r(   md5c                 C   s,   t tj| ||sd}t||| d S )Nz{The archive {} is not present in the root directory or is corrupted. You need to download it externally and place it in {}.)r   r$   r%   r2   rG   r:   )r   rD   rI   rH   r   r   r   _verify_archive`   s
   rJ   c              
      s(  ddl m dtdttttf ttttdf f f ffdd}dtdtt fdd	}tdtt fd
d}t	d }|du rC|d }|d }t
| || | :}ttj| || tj|d}||\ }	||}
 fdd|
D }t|	|ftj| t W d   dS 1 sw   Y  dS )a5  Parse the devkit archive of the ImageNet2012 classification dataset and save
    the meta information in a binary file.

    Args:
        root (str): Root directory containing the devkit archive
        file (str, optional): Name of devkit archive. Defaults to
            'ILSVRC2012_devkit_t12.tar.gz'
    r   Ndevkit_rootr   .c                    s   t j| dd}j|ddd  tt  d } fddt|D  tt  d d	 \}}}d
d |D }dd t||D }dd t||D }||fS )Ndatazmeta.matT)Z
squeeze_meZsynsets   c                    s    g | ]\}}|d kr | qS )r   r   )r   r   Znum_childrenmetar   r   r   x   r#   z@parse_devkit_archive.<locals>.parse_meta_mat.<locals>.<listcomp>   c                 S   s   g | ]	}t |d qS )z, )tupler   )r   r    r   r   r   r   z       c                 S      i | ]\}}||qS r   r   )r   r   r   r   r   r   r"   {       z@parse_devkit_archive.<locals>.parse_meta_mat.<locals>.<dictcomp>c                 S   rS   r   r   )r   r   r    r   r   r   r"   |   rT   )r$   r%   r2   Zloadmatlistzipr.   )rK   ZmetafileZnums_childrenZidcsr-   r,   idx_to_wnidr   )siorN   r   parse_meta_matt   s   z,parse_devkit_archive.<locals>.parse_meta_matc                 S   sN   t j| dd}t|}| }W d    n1 sw   Y  dd |D S )NrL   z&ILSVRC2012_validation_ground_truth.txtc                 S   s   g | ]}t |qS r   )int)r   Zval_idxr   r   r   r      r   zKparse_devkit_archive.<locals>.parse_val_groundtruth_txt.<locals>.<listcomp>)r$   r%   r2   open	readlines)rK   rD   Ztxtfhval_idcsr   r   r   parse_val_groundtruth_txt   s
   

z7parse_devkit_archive.<locals>.parse_val_groundtruth_txtc               	   s   s.    t  } z| V  W t|  d S t|  w r9   )tempfilemkdtempshutilrmtree)tmp_dirr   r   r   get_tmp_dir   s
   z)parse_devkit_archive.<locals>.get_tmp_dirr   r	   ZILSVRC2012_devkit_t12c                    r   r   r   )r   r   )rW   r   r   r      r   z(parse_devkit_archive.<locals>.<listcomp>)Zscipy.ioiorA   r   r   rZ   r   r   r   ARCHIVE_METArJ   r   r$   r%   r2   rE   saver3   )r   rD   rY   r^   rd   archive_metarI   rc   rK   r   r]   Z	val_wnidsr   )rW   rX   r   r4   i   s$   	6"r4   r   folderc                    s   t d }|du r|d }|d }t| || tj| | ttj| |   fddt D }|D ]}t|tj|d dd q5dS )	a  Parse the train images archive of the ImageNet2012 classification dataset and
    prepare it for usage with the ImageNet dataset.

    Args:
        root (str): Root directory containing the train images archive
        file (str, optional): Name of train images archive. Defaults to
            'ILSVRC2012_img_train.tar'
        folder (str, optional): Optional name for train images folder. Defaults to
            'train'
    r   Nr   r	   c                    s   g | ]	}t j |qS r   r$   r%   r2   )r   archiveZ
train_rootr   r   r      rR   z'parse_train_archive.<locals>.<listcomp>T)Zremove_finished)rf   rJ   r$   r%   r2   r   listdirsplitext)r   rD   ri   rh   rI   Zarchivesrk   r   rl   r   r6      s   r6   r   r-   c           	         s   t d }|du r|d }|d }|du rt| d }t| || tj| | ttj| |  t fddt D }t	|D ]}t
tj | qCt||D ]\}}t|tj |tj| qUdS )af  Parse the validation images archive of the ImageNet2012 classification dataset
    and prepare it for usage with the ImageNet dataset.

    Args:
        root (str): Root directory containing the validation images archive
        file (str, optional): Name of validation images archive. Defaults to
            'ILSVRC2012_img_val.tar'
        wnids (list, optional): List of WordNet IDs of the validation images. If None
            is given, the IDs are loaded from the meta file in the root directory
        folder (str, optional): Optional name for validation images folder. Defaults to
            'val'
    r   Nr   r	   c                 3   s    | ]
}t j |V  qd S r9   rj   )r   imageZval_rootr   r   	<genexpr>   s    z$parse_val_archive.<locals>.<genexpr>)rf   r(   rJ   r$   r%   r2   r   sortedrm   setmkdirrV   ra   movebasename)	r   rD   r-   ri   rh   rI   Zimagesr   Zimg_filer   rp   r   r7      s   "r7   r9   )Nr   )NNr   )r$   ra   r_   
contextlibr   typingr   r   r   r   r   r   rE   ri   r
   utilsr   r   r   rf   r3   r   rA   r(   rJ   r4   r6   r7   r   r   r   r   <module>   s<     0<	 6
