from abc import ABC
import logging
logger = logging.getLogger(__name__)

class FeatureExtractor(ABC):
    """Feature extractor interface."""
    # TODO: #API -- decide if .features will be a member variable
    def setup(self):
        pass

    def run(self):
        pass

    def teardown(self):
        pass
class LaughterFeatureExtractor(FeatureExtractor):
    """Feature extractor for laughter detection.

    This class is responsible for extracting features corresponding to laughter in media files.

    Here:

     setup() is used to validate input files & config, which may involve processing video files to extract audio

     run() is used to extract features from the audio using jrgillick's laughter-detection

     teardown() is used to clean up any temporary files created during setup according to the config

    See: https://github.com/jrgillick/laughter-detection for the laughter-detection library
    """