python/lib/gen_code.py: improve del_ function, safer DECREF, fix indentation, emit...
[aubio.git] / python / tests / utils.py
1 #! /usr/bin/env python
2
3 import os
4 import glob
5 import numpy as np
6 from tempfile import mkstemp
7
8 def array_from_text_file(filename, dtype = 'float'):
9     filename = os.path.join(os.path.dirname(__file__), filename)
10     with open(filename) as f:
11         lines = f.readlines()
12     return np.array([line.split() for line in lines],
13             dtype = dtype)
14
15 def list_all_sounds(rel_dir):
16     datadir = os.path.join(os.path.dirname(__file__), rel_dir)
17     return glob.glob(os.path.join(datadir,'*.*'))
18
19 def get_default_test_sound(TestCase, rel_dir = 'sounds'):
20     all_sounds = list_all_sounds(rel_dir)
21     if len(all_sounds) == 0:
22         TestCase.skipTest("please add some sounds in \'python/tests/sounds\'")
23     else:
24         return all_sounds[0]
25
26 def get_tmp_sink_path():
27     fd, path = mkstemp()
28     os.close(fd)
29     return path
30
31 def del_tmp_sink_path(path):
32     try:
33         os.unlink(path)
34     except WindowsError as e:
35         print("deleting {:s} failed ({:s}), reopening".format(path, repr(e)))
36         with open(path, 'wb') as f:
37             f.close()
38         try:
39             os.unlink(path)
40         except WindowsError as f:
41             print("deleting {:s} failed ({:s}), aborting".format(path, repr(e)))
42
43 def array_from_yaml_file(filename):
44     import yaml
45     f = open(filename)
46     yaml_data = yaml.safe_load(f)
47     f.close()
48     return yaml_data
49
50 def count_samples_in_file(file_path):
51     from aubio import source
52     hopsize = 256
53     s = source(file_path, 0, hopsize)
54     total_frames = 0
55     while True:
56         _, read = s()
57         total_frames += read
58         if read < hopsize: break
59     return total_frames
60
61 def count_samples_in_directory(samples_dir):
62     total_frames = 0
63     for f in os.walk(samples_dir):
64         if len(f[2]):
65             for each in f[2]:
66                 file_path = os.path.join(f[0], each)
67                 if file_path:
68                     total_frames += count_samples_in_file(file_path)
69     return total_frames
70
71 def count_files_in_directory(samples_dir):
72     total_files = 0
73     for f in os.walk(samples_dir):
74         if len(f[2]):
75             for each in f[2]:
76                 file_path = os.path.join(f[0], each)
77                 if file_path:
78                     total_files += 1
79     return total_files