python/tests/utils.py

   1 #! /usr/bin/env python
   2
   3 def array_from_text_file(filename, dtype = 'float'):
   4     import os.path
   5     from numpy import array
   6     filename = os.path.join(os.path.dirname(__file__), filename)
   7     return array([line.split() for line in open(filename).readlines()],
   8         dtype = dtype)
   9
  10 def list_all_sounds(rel_dir):
  11     import os.path, glob
  12     datadir = os.path.join(os.path.dirname(__file__), rel_dir)
  13     return glob.glob(os.path.join(datadir,'*.*'))
  14
  15 def get_default_test_sound(TestCase, rel_dir = 'sounds'):
  16     all_sounds = list_all_sounds(rel_dir)
  17     if len(all_sounds) == 0:
  18         TestCase.skipTest("please add some sounds in \'python/tests/sounds\'")
  19     else:
  20         return all_sounds[0]
  21
  22 def array_from_yaml_file(filename):
  23     import yaml
  24     f = open(filename)
  25     yaml_data = yaml.safe_load(f)
  26     f.close()
  27     return yaml_data
  28
  29 def count_samples_in_file(file_path):
  30     from aubio import source
  31     hopsize = 256
  32     s = source(file_path, 0, hopsize)
  33     total_frames = 0
  34     while True:
  35         samples, read = s()
  36         total_frames += read
  37         if read < hopsize: break
  38     return total_frames
  39
  40 def count_samples_in_directory(samples_dir):
  41     import os
  42     total_frames = 0
  43     for f in os.walk(samples_dir):
  44         if len(f[2]):
  45             for each in f[2]:
  46                 file_path = os.path.join(f[0], each)
  47                 if file_path:
  48                     total_frames += count_samples_in_file(file_path)
  49     return total_frames
  50
  51 def count_files_in_directory(samples_dir):
  52     import os
  53     total_files = 0
  54     for f in os.walk(samples_dir):
  55         if len(f[2]):
  56             for each in f[2]:
  57                 file_path = os.path.join(f[0], each)
  58                 if file_path:
  59                     total_files += 1
  60     return total_files