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    0i                     @  st   d dl mZ d dlZd dlmZ d dlmZ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)Path)AnyCallableOptionalTupleUnion   )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 (str or ``pathlib.Path``): 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 a 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Union[str, Path]splitstr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   family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#   `/home/ubuntu/SoloSpeech/.venv/lib/python3.10/site-packages/torchvision/datasets/fgvc_aircraft.py
<listcomp>K   s    z)FGVCAircraft.__init__.<locals>.<listcomp>imagesimages__z.txt r	   z.jpg)super__init__r   _split_annotation_levelospathjoinr   
_data_path	_download_check_existsRuntimeErroropenclassesdictziprangelenclass_to_idx_image_files_labelsr$   r   append)selfr   r   r   r   r   r   annotation_filefimage_data_folderlabels_filer&   
image_name
label_name	__class__r#   r'   r.   +   sF   		$"zFGVCAircraft.__init__intc                 C  s
   t | jS N)r=   r?   rB   r#   r#   r'   __len__[   s   
zFGVCAircraft.__len__idxTuple[Any, Any]c                 C  sP   | j | | j| }}tj|d}| jr| |}| jr$| |}||fS )NRGB)r?   r@   PILImager8   convertr   r   )rB   rO   
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)r6   r
   _URLr   rM   r#   r#   r'   r5   j   s   zFGVCAircraft._downloadc                 C  s   t j| jot j| jS rL   )r1   r2   existsr4   isdirrM   r#   r#   r'   r6   r   s   zFGVCAircraft._check_exists)r   r   NNF)r   r   r   r   r   r   r   r   r   r   r   r   r   r   )r   rK   )rO   rK   r   rP   )r   r   )r   r   )__name__
__module____qualname____doc__rY   r.   rN   rX   r5   r6   __classcell__r#   r#   rI   r'   r      s    
0

r   )
__future__r   r1   pathlibr   typingr   r   r   r   r   	PIL.ImagerR   utilsr
   r   visionr   r   r#   r#   r#   r'   <module>   s    