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import os
from io import BytesIO
from mutagen.id3 import ID3, TIT2
from mutagen.musepack import Musepack, MusepackInfo, MusepackHeaderError
from tests import TestCase, DATA_DIR, get_temp_copy
class TMusepack(TestCase):
def setUp(self):
self.sv8 = Musepack(os.path.join(DATA_DIR, "sv8_header.mpc"))
self.sv7 = Musepack(os.path.join(DATA_DIR, "click.mpc"))
self.sv5 = Musepack(os.path.join(DATA_DIR, "sv5_header.mpc"))
self.sv4 = Musepack(os.path.join(DATA_DIR, "sv4_header.mpc"))
def test_bad_header(self):
self.failUnlessRaises(
MusepackHeaderError,
Musepack, os.path.join(DATA_DIR, "almostempty.mpc"))
def test_channels(self):
self.failUnlessEqual(self.sv8.info.channels, 2)
self.failUnlessEqual(self.sv7.info.channels, 2)
self.failUnlessEqual(self.sv5.info.channels, 2)
self.failUnlessEqual(self.sv4.info.channels, 2)
def test_sample_rate(self):
self.failUnlessEqual(self.sv8.info.sample_rate, 44100)
self.failUnlessEqual(self.sv7.info.sample_rate, 44100)
self.failUnlessEqual(self.sv5.info.sample_rate, 44100)
self.failUnlessEqual(self.sv4.info.sample_rate, 44100)
def test_bitrate(self):
self.failUnlessEqual(self.sv8.info.bitrate, 609)
self.failUnlessEqual(self.sv7.info.bitrate, 194530)
self.failUnlessEqual(self.sv5.info.bitrate, 39)
self.failUnlessEqual(self.sv4.info.bitrate, 39)
def test_length(self):
self.failUnlessAlmostEqual(self.sv8.info.length, 1.49, 1)
self.failUnlessAlmostEqual(self.sv7.info.length, 0.07, 2)
self.failUnlessAlmostEqual(self.sv5.info.length, 26.3, 1)
self.failUnlessAlmostEqual(self.sv4.info.length, 26.3, 1)
def test_gain(self):
self.failUnlessAlmostEqual(self.sv8.info.title_gain, -4.668, 3)
self.failUnlessAlmostEqual(self.sv8.info.title_peak, 0.5288, 3)
self.failUnlessEqual(
self.sv8.info.title_gain, self.sv8.info.album_gain)
self.failUnlessEqual(
self.sv8.info.title_peak, self.sv8.info.album_peak)
self.failUnlessAlmostEqual(self.sv7.info.title_gain, 9.27, 6)
self.failUnlessAlmostEqual(self.sv7.info.title_peak, 0.1149, 4)
self.failUnlessEqual(
self.sv7.info.title_gain, self.sv7.info.album_gain)
self.failUnlessEqual(
self.sv7.info.title_peak, self.sv7.info.album_peak)
self.failUnlessRaises(AttributeError, getattr, self.sv5, 'title_gain')
def test_not_my_file(self):
self.failUnlessRaises(
MusepackHeaderError, Musepack,
os.path.join(DATA_DIR, "empty.ogg"))
self.failUnlessRaises(
MusepackHeaderError, Musepack,
os.path.join(DATA_DIR, "emptyfile.mp3"))
def test_almost_my_file(self):
self.failUnlessRaises(
MusepackHeaderError, MusepackInfo, BytesIO(b"MP+" + b"\x00" * 32))
self.failUnlessRaises(
MusepackHeaderError,
MusepackInfo,
BytesIO(b"MP+" + b"\x00" * 100))
self.failUnlessRaises(
MusepackHeaderError,
MusepackInfo,
BytesIO(b"MPCK" + b"\x00" * 100))
def test_pprint(self):
self.sv8.pprint()
self.sv7.pprint()
self.sv5.pprint()
self.sv4.pprint()
def test_mime(self):
self.failUnless("audio/x-musepack" in self.sv7.mime)
def test_zero_padded_sh_packet(self):
# https://github.com/quodlibet/mutagen/issues/198
data = (b"MPCKSH\x10\x95 Q\xa2\x08\x81\xb8\xc9T\x00\x1e\x1b"
b"\x00RG\x0c\x01A\xcdY\x06?\x80Z\x06EI")
fileobj = BytesIO(data)
info = MusepackInfo(fileobj)
self.assertEqual(info.channels, 2)
self.assertEqual(info.samples, 3024084)
class TMusepackWithID3(TestCase):
def setUp(self):
self.filename = get_temp_copy(os.path.join(DATA_DIR, "click.mpc"))
def tearDown(self):
os.unlink(self.filename)
def test_ignore_id3(self):
id3 = ID3()
id3.add(TIT2(encoding=0, text='id3 title'))
id3.save(self.filename)
f = Musepack(self.filename)
f['title'] = 'apev2 title'
f.save()
id3 = ID3(self.filename)
self.failUnlessEqual(id3['TIT2'], 'id3 title')
f = Musepack(self.filename)
self.failUnlessEqual(f['title'], 'apev2 title')
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