ref: 40aaf726fb9ae8967bb7a006033c2f83a0ee8638
dir: /python/tests/test_source.py/
#! /usr/bin/env python
from numpy.testing import TestCase, assert_equal
from aubio import source
from utils import list_all_sounds, parse_file_samplerate
import unittest
from _tools import assert_raises, assert_equal, assert_warns
from _tools import parametrize, skipTest
list_of_sounds = list_all_sounds('sounds')
samplerates = [0, 44100, 8000, 32000]
hop_sizes = [512, 1024, 64]
default_test_sound = len(list_of_sounds) and list_of_sounds[0] or 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))
no_sounds_msg = "no test sounds, add some in 'python/tests/sounds/'!"
_debug = False
class Test_aubio_source_test_case(TestCase):
def setUp(self):
if not default_test_sound:
skipTest(no_sounds_msg)
def test_close_file(self):
samplerate = 0 # use native samplerate
hop_size = 256
f = source(default_test_sound, samplerate, hop_size)
f.close()
def test_close_file_twice(self):
samplerate = 0 # use native samplerate
hop_size = 256
f = source(default_test_sound, samplerate, hop_size)
f.close()
f.close()
def test_read_after_close(self):
samplerate = 0 # use native samplerate
hop_size = 256
f = source(default_test_sound, samplerate, hop_size)
read, frames = f()
f.close()
with assert_raises(RuntimeError):
read, frames = f()
with assert_raises(RuntimeError):
read, frames = f.do_multi()
class Test_aubio_source_read(object):
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
if _debug:
result_str = "read {:.2f}s ({:d} frames"
result_str += " 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
@parametrize('hop_size, samplerate, soundfile', all_params)
def test_samplerate_hopsize(self, hop_size, samplerate, soundfile):
orig_samplerate = parse_file_samplerate(soundfile)
try:
if orig_samplerate is not None and orig_samplerate < samplerate:
# upsampling should emit a warning
with assert_warns(UserWarning):
f = source(soundfile, samplerate, hop_size)
else:
f = source(soundfile, samplerate, hop_size)
except RuntimeError as e:
err_msg = 'failed opening with hop_s={:d}, samplerate={:d} ({:s})'
skipTest(err_msg.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(r'.*_\([0:9]*f\)_.*')
match_f = re.findall('([0-9]*)f_', soundfile)
if len(match_f) == 1:
expected_frames = int(match_f[0])
assert_equal(expected_frames, read_frames)
@parametrize('p', list_of_sounds)
def test_samplerate_none(self, p):
f = source(p)
assert f.samplerate != 0
self.read_from_source(f)
@parametrize('p', list_of_sounds)
def test_samplerate_0(self, p):
f = source(p, 0)
assert f.samplerate != 0
self.read_from_source(f)
@parametrize('p', 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)
@parametrize('p', 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
@parametrize('p', 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
assert_equal (duration, total_frames)
class Test_aubio_source_wrong_params(object):
def test_wrong_file(self):
with assert_raises(RuntimeError):
source('path_to/unexisting file.mp3')
@unittest.skipIf(default_test_sound is None, no_sounds_msg)
class Test_aubio_source_wrong_params_with_file(TestCase):
def test_wrong_samplerate(self):
with assert_raises(ValueError):
source(default_test_sound, -1)
def test_wrong_hop_size(self):
with assert_raises(ValueError):
source(default_test_sound, 0, -1)
def test_wrong_channels(self):
with assert_raises(ValueError):
source(default_test_sound, 0, 0, -1)
def test_wrong_seek(self):
f = source(default_test_sound)
with assert_raises(ValueError):
f.seek(-1)
def test_wrong_seek_too_large(self):
f = source(default_test_sound)
try:
with assert_raises(ValueError):
f.seek(f.duration + f.samplerate * 10)
except:
skipTest('seeking after end of stream failed raising ValueError')
class Test_aubio_source_readmulti(Test_aubio_source_read):
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
if _debug:
result_str = "read {:.2f}s ({:d} frames in {:d} channels"
result_str += " 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 Test_aubio_source_with(object):
@parametrize('filename', 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__':
from _tools import run_module_suite
run_module_suite()