o
    )i                     @  sd   d dl mZ d dlZd dlmZmZmZmZ d dlZ	ddl
mZmZ ddlmZ G dd deZdS )	    )annotationsN)AnyCallableOptionalTuple   )download_and_extract_archiveverify_str_arg)VisionDatasetc                      sZ   e Zd ZdZdZ					dd  fddZd!ddZd"ddZd#ddZd$ddZ	  Z
S )%FGVCAircrafta  `FGVC Aircraft <https://www.robots.ox.ac.uk/~vgg/data/fgvc-aircraft/>`_ Dataset.

    The dataset contains 10,000 images of aircraft, with 100 images for each of 100
    different aircraft model variants, most of which are airplanes.
    Aircraft models are organized in a three-levels hierarchy. The three levels, from
    finer to coarser, are:

    - ``variant``, e.g. Boeing 737-700. A variant collapses all the models that are visually
        indistinguishable into one class. The dataset comprises 100 different variants.
    - ``family``, e.g. Boeing 737. The dataset comprises 70 different families.
    - ``manufacturer``, e.g. Boeing. The dataset comprises 30 different manufacturers.

    Args:
        root (string): Root directory of the FGVC Aircraft dataset.
        split (string, optional): The dataset split, supports ``train``, ``val``,
            ``trainval`` and ``test``.
        annotation_level (str, optional): The annotation level, supports ``variant``,
            ``family`` and ``manufacturer``.
        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.
        download (bool, optional): If True, downloads the dataset from the internet and
            puts it in root directory. If dataset is already downloaded, it is not
            downloaded again.
    zWhttps://www.robots.ox.ac.uk/~vgg/data/fgvc-aircraft/archives/fgvc-aircraft-2013b.tar.gztrainvalvariantNFrootstrsplitannotation_level	transformOptional[Callable]target_transformdownloadboolreturnNonec              	     s  t  j|||d t|dd| _t|dd| _tj| jd| _	|r&| 
  |  s.tdtj| j	dd	d
dd| j }t|d}dd |D | _W d    n1 sVw   Y  tt| jtt| j| _tj| j	dd}	tj| j	dd| j d| j d}
g | _g | _t|
d/}|D ]#}| dd\}}| jtj|	| d | j| j|  qW d    d S 1 sw   Y  d S )N)r   r   r   )trainvalr   testr   )r   familyZmanufacturerzfgvc-aircraft-2013bz;Dataset not found. You can use download=True to download itdatazvariants.txtzfamilies.txtzmanufacturers.txtrc                 S  s   g | ]}|  qS  )strip).0liner   r   q/var/www/html/eduruby.in/lip-sync/lip-sync-env/lib/python3.10/site-packages/torchvision/datasets/fgvc_aircraft.py
<listcomp>J   s    z)FGVCAircraft.__init__.<locals>.<listcomp>ZimagesZimages__z.txt r   z.jpg)super__init__r	   _splitZ_annotation_levelospathjoinr   
_data_path	_download_check_existsRuntimeErroropenclassesdictziprangelenZclass_to_idx_image_files_labelsr    r   append)selfr   r   r   r   r   r   Zannotation_filefZimage_data_folderZlabels_filer"   Z
image_nameZ
label_name	__class__r   r#   r(   *   sF   		$"zFGVCAircraft.__init__intc                 C  s
   t | jS N)r6   r7   r:   r   r   r#   __len__Z   s   
zFGVCAircraft.__len__idxTuple[Any, Any]c                 C  sP   | j | | j| }}tj|d}| jr| |}| jr$| |}||fS )NRGB)r7   r8   PILZImager1   convertr   r   )r:   rB   Z
image_filelabelimager   r   r#   __getitem__]   s   

zFGVCAircraft.__getitem__c                 C  s   |   rdS t| j| j dS )zW
        Download the FGVC Aircraft dataset archive and extract it under root.
        N)r/   r   _URLr   r@   r   r   r#   r.   i   s   zFGVCAircraft._downloadc                 C  s   t j| jot j| jS r?   )r*   r+   existsr-   isdirr@   r   r   r#   r/   q   s   zFGVCAircraft._check_exists)r   r   NNF)r   r   r   r   r   r   r   r   r   r   r   r   r   r   )r   r>   )rB   r>   r   rC   )r   r   )r   r   )__name__
__module____qualname____doc__rJ   r(   rA   rI   r.   r/   __classcell__r   r   r<   r#   r      s    
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
r   )
__future__r   r*   typingr   r   r   r   Z	PIL.ImagerE   utilsr   r	   Zvisionr
   r   r   r   r   r#   <module>   s    