U ʹjT @sbdZddlZddlZddlmZddlmZddlmZddl m Z d d d Z Gd d d e Z dS)z A 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)ReaderTcstdd}g}g}|D]\}|s(qtj|j\}}tj|} tj|d} | |kr| || | qdkrt |} t t | t d} ddt| Dfddt||D} |rt | d d d} | fS) NT)Zas_setr)keycSsi|]\}}||qSr).0idxcrra/var/www/html/bwave/python/venv/lib/python3.8/site-packages/timm/data/readers/reader_image_tar.py "sz#extract_tarinfo..cs$g|]\}}|kr||fqSrr)r fl class_to_idxrr #sz#extract_tarinfo..cSst|djSNr)rpath)krrr %z!extract_tarinfo..)r getmembersisfileosrsplitbasenamesplitextlowerappendsetlistsortedr enumeratezip)tarfilersort extensionsfileslabelstidirnamerlabelextZ unique_labelsZ sorted_labelsZtarinfo_and_targetsrrr extract_tarinfos(      r.cs<eZdZdZd fdd ZddZddZd d d ZZS)ReaderImageTarz Single tarfile dataset where classes are mapped to folders within tar NOTE: This class is being deprecated in favour of the more capable ReaderImageInTar that can operate on folders of tars or tars in tars. c sltd}|rt||}tj|s,t||_t |}t ||\|_ |_ W5QRX|j |_ d|_dSN)super__init__rrrrAssertionErrorrootr%openr.samplesrZimgs)selfr5 class_maprtf __class__rr r3.s   zReaderImageTar.__init__cCs:|jdkrt|j|_|j|\}}|j|}||fSr1)r%r6r5r7 extractfile)r8indextarinfotargetfileobjrrr __getitem__<s   zReaderImageTar.__getitem__cCs t|jSr1)lenr7)r8rrr __len__CszReaderImageTar.__len__FcCs$|j|dj}|r tj|}|Sr)r7namerrr)r8r>rabsolutefilenamerrr _filenameFs zReaderImageTar._filename)r0)FF) __name__ __module__ __qualname____doc__r3rBrDrH __classcell__rrr;r r/)s r/)NT) rLrr%Ztimm.utils.miscrr9rZimg_extensionsrreaderrr.r/rrrr s