source: python/tests/test_source.py @ da1a83f

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchsampler
Last change on this file since da1a83f was da1a83f, checked in by Paul Brossier <piem@piem.org>, 3 years ago

python/tests/test_source.py: remove unused import

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File size: 6.1 KB
Line 
1#! /usr/bin/env python
2
3from nose2 import main
4from nose2.tools import params
5from numpy.testing import TestCase, assert_equal
6from aubio import source
7from .utils import list_all_sounds
8
9import warnings
10warnings.filterwarnings('ignore', category=UserWarning, append=True)
11
12list_of_sounds = list_all_sounds('sounds')
13samplerates = [0, 44100, 8000, 32000]
14hop_sizes = [512, 1024, 64]
15
16path = None
17
18all_params = []
19for soundfile in list_of_sounds:
20    for hop_size in hop_sizes:
21        for samplerate in samplerates:
22            all_params.append((hop_size, samplerate, soundfile))
23
24
25class aubio_source_test_case_base(TestCase):
26
27    def setUp(self):
28        if not len(list_of_sounds):
29            self.skipTest('add some sound files in \'python/tests/sounds\'')
30        self.default_test_sound = list_of_sounds[0]
31
32class aubio_source_test_case(aubio_source_test_case_base):
33
34    @params(*list_of_sounds)
35    def test_close_file(self, filename):
36        samplerate = 0 # use native samplerate
37        hop_size = 256
38        f = source(filename, samplerate, hop_size)
39        f.close()
40
41    @params(*list_of_sounds)
42    def test_close_file_twice(self, filename):
43        samplerate = 0 # use native samplerate
44        hop_size = 256
45        f = source(filename, samplerate, hop_size)
46        f.close()
47        f.close()
48
49class aubio_source_read_test_case(aubio_source_test_case_base):
50
51    def read_from_source(self, f):
52        total_frames = 0
53        while True:
54            samples , read = f()
55            total_frames += read
56            if read < f.hop_size:
57                assert_equal(samples[read:], 0)
58                break
59        #result_str = "read {:.2f}s ({:d} frames in {:d} blocks at {:d}Hz) from {:s}"
60        #result_params = total_frames / float(f.samplerate), total_frames, total_frames//f.hop_size, f.samplerate, f.uri
61        #print (result_str.format(*result_params))
62        return total_frames
63
64    @params(*all_params)
65    def test_samplerate_hopsize(self, hop_size, samplerate, soundfile):
66        try:
67            f = source(soundfile, samplerate, hop_size)
68        except RuntimeError as e:
69            self.skipTest('failed opening with hop_s = {:d}, samplerate = {:d} ({:s})'.format(hop_size, samplerate, str(e)))
70        assert f.samplerate != 0
71        read_frames = self.read_from_source(f)
72        if 'f_' in soundfile and samplerate == 0:
73            import re
74            f = re.compile('.*_\([0:9]*f\)_.*')
75            match_f = re.findall('([0-9]*)f_', soundfile)
76            if len(match_f) == 1:
77                expected_frames = int(match_f[0])
78                self.assertEqual(expected_frames, read_frames)
79
80    @params(*list_of_sounds)
81    def test_samplerate_none(self, p):
82        f = source(p)
83        assert f.samplerate != 0
84        self.read_from_source(f)
85
86    @params(*list_of_sounds)
87    def test_samplerate_0(self, p):
88        f = source(p, 0)
89        assert f.samplerate != 0
90        self.read_from_source(f)
91
92    @params(*list_of_sounds)
93    def test_zero_hop_size(self, p):
94        f = source(p, 0, 0)
95        assert f.samplerate != 0
96        assert f.hop_size != 0
97        self.read_from_source(f)
98
99    @params(*list_of_sounds)
100    def test_seek_to_half(self, p):
101        from random import randint
102        f = source(p, 0, 0)
103        assert f.samplerate != 0
104        assert f.hop_size != 0
105        a = self.read_from_source(f)
106        c = randint(0, a)
107        f.seek(c)
108        b = self.read_from_source(f)
109        assert a == b + c
110
111    @params(*list_of_sounds)
112    def test_duration(self, p):
113        total_frames = 0
114        f = source(p)
115        duration = f.duration
116        while True:
117            _, read = f()
118            total_frames += read
119            if read < f.hop_size: break
120        self.assertEqual(duration, total_frames)
121
122
123class aubio_source_test_wrong_params(TestCase):
124
125    def test_wrong_file(self):
126        with self.assertRaises(RuntimeError):
127            source('path_to/unexisting file.mp3')
128
129class aubio_source_test_wrong_params_with_file(aubio_source_test_case_base):
130
131    def test_wrong_samplerate(self):
132        with self.assertRaises(ValueError):
133            source(self.default_test_sound, -1)
134
135    def test_wrong_hop_size(self):
136        with self.assertRaises(ValueError):
137            source(self.default_test_sound, 0, -1)
138
139    def test_wrong_channels(self):
140        with self.assertRaises(ValueError):
141            source(self.default_test_sound, 0, 0, -1)
142
143    def test_wrong_seek(self):
144        f = source(self.default_test_sound)
145        with self.assertRaises(ValueError):
146            f.seek(-1)
147
148    def test_wrong_seek_too_large(self):
149        f = source(self.default_test_sound)
150        try:
151            with self.assertRaises(ValueError):
152                f.seek(f.duration + f.samplerate * 10)
153        except AssertionError:
154            self.skipTest('seeking after end of stream failed raising ValueError')
155
156class aubio_source_readmulti_test_case(aubio_source_read_test_case):
157
158    def read_from_source(self, f):
159        total_frames = 0
160        while True:
161            samples, read = f.do_multi()
162            total_frames += read
163            if read < f.hop_size:
164                assert_equal(samples[:,read:], 0)
165                break
166        #result_str = "read {:.2f}s ({:d} frames in {:d} channels and {:d} blocks at {:d}Hz) from {:s}"
167        #result_params = total_frames / float(f.samplerate), total_frames, f.channels, int(total_frames/f.hop_size), f.samplerate, f.uri
168        #print (result_str.format(*result_params))
169        return total_frames
170
171class aubio_source_with(aubio_source_test_case_base):
172
173    #@params(*list_of_sounds)
174    @params(*list_of_sounds)
175    def test_read_from_mono(self, filename):
176        total_frames = 0
177        hop_size = 2048
178        with source(filename, 0, hop_size) as input_source:
179            assert_equal(input_source.hop_size, hop_size)
180            #assert_equal(input_source.samplerate, samplerate)
181            total_frames = 0
182            for frames in input_source:
183                total_frames += frames.shape[-1]
184            # check we read as many samples as we expected
185            assert_equal(total_frames, input_source.duration)
186
187if __name__ == '__main__':
188    main()
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