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# Licensed under the Apache License, Version 2.0 (the "License");
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"""TFDS Classification decoders."""

import tensorflow as tf, tf_keras
from official.vision.dataloaders import decoder


class ClassificationDecorder(decoder.Decoder):
  """A tf.Example decoder for tfds classification datasets."""

  def decode(self, serialized_example):
    sample_dict = {
        'image/encoded':
            tf.io.encode_jpeg(serialized_example['image'], quality=100),
        'image/class/label':
            serialized_example['label'],
    }
    return sample_dict


TFDS_ID_TO_DECODER_MAP = {
    'cifar10': ClassificationDecorder,
    'cifar100': ClassificationDecorder,
    'imagenet2012': ClassificationDecorder,
    'imagenet2012_fewshot/10shot': ClassificationDecorder,
}
