code: def _cnncfp_pad(data):
      """Pad the input"""
      pad_data = np.zeros((11, 113))
      return np.vstack([pad_data, data, pad_data])
  
file_path: madmom/madmom/features/chords.py
imports: from __future__ import absolute_import, division, print_function
  from functools import partial
  import numpy
  from ..io import SEGMENT_DTYPE
  from ..processors import SequentialProcessor
label_desc: Use image node_id 2 for calling a global function with example usage: _cnncfp_pad(data) and returns: np