ref: 805381ad3df15c215d3d9bf825f03e586081026d
dir: /python/tests/test_source.py/
#! /usr/bin/env python
from nose2 import main
from nose2.tools import params
from numpy.testing import TestCase, assert_equal
from aubio import source
from .utils import list_all_sounds
import warnings
warnings.filterwarnings('ignore', category=UserWarning, append=True)
list_of_sounds = list_all_sounds('sounds')
samplerates = [0, 44100, 8000, 32000]
hop_sizes = [512, 1024, 64]
path = None
all_params = []
for soundfile in list_of_sounds:
for hop_size in hop_sizes:
for samplerate in samplerates:
all_params.append((hop_size, samplerate, soundfile))
class aubio_source_test_case_base(TestCase):
def setUp(self):
if not len(list_of_sounds):
self.skipTest('add some sound files in \'python/tests/sounds\'')
self.default_test_sound = list_of_sounds[0]
class aubio_source_test_case(aubio_source_test_case_base):
@params(*list_of_sounds)
def test_close_file(self, filename):
samplerate = 0 # use native samplerate
hop_size = 256
f = source(filename, samplerate, hop_size)
f.close()
@params(*list_of_sounds)
def test_close_file_twice(self, filename):
samplerate = 0 # use native samplerate
hop_size = 256
f = source(filename, samplerate, hop_size)
f.close()
f.close()
class aubio_source_read_test_case(aubio_source_test_case_base):
def read_from_source(self, f):
total_frames = 0
while True:
samples , read = f()
total_frames += read
if read < f.hop_size:
assert_equal(samples[read:], 0)
break
#result_str = "read {:.2f}s ({:d} frames in {:d} blocks at {:d}Hz) from {:s}"
#result_params = total_frames / float(f.samplerate), total_frames, total_frames//f.hop_size, f.samplerate, f.uri
#print (result_str.format(*result_params))
return total_frames
@params(*all_params)
def test_samplerate_hopsize(self, hop_size, samplerate, soundfile):
try:
f = source(soundfile, samplerate, hop_size)
except RuntimeError as e:
self.skipTest('failed opening with hop_s = {:d}, samplerate = {:d} ({:s})'.format(hop_size, samplerate, str(e)))
assert f.samplerate != 0
read_frames = self.read_from_source(f)
if 'f_' in soundfile and samplerate == 0:
import re
f = re.compile('.*_\([0:9]*f\)_.*')
match_f = re.findall('([0-9]*)f_', soundfile)
if len(match_f) == 1:
expected_frames = int(match_f[0])
self.assertEqual(expected_frames, read_frames)
@params(*list_of_sounds)
def test_samplerate_none(self, p):
f = source(p)
assert f.samplerate != 0
self.read_from_source(f)
@params(*list_of_sounds)
def test_samplerate_0(self, p):
f = source(p, 0)
assert f.samplerate != 0
self.read_from_source(f)
@params(*list_of_sounds)
def test_zero_hop_size(self, p):
f = source(p, 0, 0)
assert f.samplerate != 0
assert f.hop_size != 0
self.read_from_source(f)
@params(*list_of_sounds)
def test_seek_to_half(self, p):
from random import randint
f = source(p, 0, 0)
assert f.samplerate != 0
assert f.hop_size != 0
a = self.read_from_source(f)
c = randint(0, a)
f.seek(c)
b = self.read_from_source(f)
assert a == b + c
@params(*list_of_sounds)
def test_duration(self, p):
total_frames = 0
f = source(p)
duration = f.duration
while True:
_, read = f()
total_frames += read
if read < f.hop_size: break
self.assertEqual(duration, total_frames)
class aubio_source_test_wrong_params(TestCase):
def test_wrong_file(self):
with self.assertRaises(RuntimeError):
source('path_to/unexisting file.mp3')
class aubio_source_test_wrong_params_with_file(aubio_source_test_case_base):
def test_wrong_samplerate(self):
with self.assertRaises(ValueError):
source(self.default_test_sound, -1)
def test_wrong_hop_size(self):
with self.assertRaises(ValueError):
source(self.default_test_sound, 0, -1)
def test_wrong_channels(self):
with self.assertRaises(ValueError):
source(self.default_test_sound, 0, 0, -1)
def test_wrong_seek(self):
f = source(self.default_test_sound)
with self.assertRaises(ValueError):
f.seek(-1)
def test_wrong_seek_too_large(self):
f = source(self.default_test_sound)
try:
with self.assertRaises(ValueError):
f.seek(f.duration + f.samplerate * 10)
except AssertionError:
self.skipTest('seeking after end of stream failed raising ValueError')
class aubio_source_readmulti_test_case(aubio_source_read_test_case):
def read_from_source(self, f):
total_frames = 0
while True:
samples, read = f.do_multi()
total_frames += read
if read < f.hop_size:
assert_equal(samples[:,read:], 0)
break
#result_str = "read {:.2f}s ({:d} frames in {:d} channels and {:d} blocks at {:d}Hz) from {:s}"
#result_params = total_frames / float(f.samplerate), total_frames, f.channels, int(total_frames/f.hop_size), f.samplerate, f.uri
#print (result_str.format(*result_params))
return total_frames
class aubio_source_with(aubio_source_test_case_base):
#@params(*list_of_sounds)
@params(*list_of_sounds)
def test_read_from_mono(self, filename):
total_frames = 0
hop_size = 2048
with source(filename, 0, hop_size) as input_source:
assert_equal(input_source.hop_size, hop_size)
#assert_equal(input_source.samplerate, samplerate)
total_frames = 0
for frames in input_source:
total_frames += frames.shape[-1]
# check we read as many samples as we expected
assert_equal(total_frames, input_source.duration)
if __name__ == '__main__':
main()