code: def librosa_pad_lr(x, fsize, fshift, pad_sides=1):
      """compute right padding (final frame) or both sides padding (first and final frames)"""
      assert pad_sides in (1, 2)
      # return int(fsize // 2)
      pad = (x.shape[0] // fshift + 1) * fshift - x.shape[0]
      if pad_sides == 1:
          return 0, pad
      else:
          return pad // 2, pad // 2 + pad % 2
  
file_path: PaddleHub/modules/audio/svs/diffsinger/utils/audio.py
imports: import subprocess
  import matplotlib
  import librosa
  import librosa.filters
  import numpy
  from scipy import signal
  from scipy.io import wavfile
label_desc: Use image node_id 5 for calling a global function with example usage: librosa_pad_lr(x, fsize, fshift, pad_sides) and returns: int,  pad, unknown,  unknown