def from_config()

in classy_vision/dataset/classy_ucf101.py [0:0]

• 42 lines of code
• 3 McCabe index (conditional complexity)

    def from_config(cls, config: Dict[str, Any]) -> "UCF101Dataset":
        """Instantiates a UCF101Dataset from a configuration.

        Args:
            config: A configuration for a UCF101Dataset.
                See :func:`__init__` for parameters expected in the config.

        Returns:
            A UCF101Dataset instance.
        """
        required_args = ["split", "metadata_file", "video_dir", "splits_dir"]
        assert all(
            arg in config for arg in required_args
        ), f"The arguments {required_args} are all required."

        split = config["split"]
        (
            transform_config,
            batchsize_per_replica,
            shuffle,
            num_samples,
            frames_per_clip,
            video_width,
            video_height,
            video_min_dimension,
            audio_samples,
            step_between_clips,
            frame_rate,
            clips_per_video,
        ) = cls.parse_config(config)

        transform = build_video_field_transform_default(transform_config, split)
        return cls(
            split,
            batchsize_per_replica,
            shuffle,
            transform,
            num_samples,
            frames_per_clip,
            video_width,
            video_height,
            video_min_dimension,
            audio_samples,
            step_between_clips,
            frame_rate,
            clips_per_video,
            config["video_dir"],
            config["splits_dir"],
            config["fold"]
            if "fold" in config
            else 1,  # UCF101 has 3 folds. Use fold 1 by default
            config["metadata_file"],
        )