ref: cd520be7fc9da5ab43417502973ee9f3e21add2f
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()