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import os
from mutagen.dsdiff import DSDIFF, IffError
from tests import TestCase, DATA_DIR, get_temp_copy
class TDSDIFF(TestCase):
silence_1 = os.path.join(DATA_DIR, '2822400-1ch-0s-silence.dff')
silence_2 = os.path.join(DATA_DIR, '5644800-2ch-s01-silence.dff')
silence_dst = os.path.join(DATA_DIR, '5644800-2ch-s01-silence-dst.dff')
def setUp(self):
self.dff_1 = DSDIFF(self.silence_1)
self.dff_2 = DSDIFF(self.silence_2)
self.dff_dst = DSDIFF(self.silence_dst)
self.dff_id3 = DSDIFF(get_temp_copy(self.silence_dst))
self.dff_no_id3 = DSDIFF(get_temp_copy(self.silence_2))
def test_channels(self):
self.failUnlessEqual(self.dff_1.info.channels, 1)
self.failUnlessEqual(self.dff_2.info.channels, 2)
self.failUnlessEqual(self.dff_dst.info.channels, 2)
def test_length(self):
self.failUnlessEqual(self.dff_1.info.length, 0)
self.failUnlessEqual(self.dff_2.info.length, 0.01)
self.failUnlessEqual(self.dff_dst.info.length, 0)
def test_sampling_frequency(self):
self.failUnlessEqual(self.dff_1.info.sample_rate, 2822400)
self.failUnlessEqual(self.dff_2.info.sample_rate, 5644800)
self.failUnlessEqual(self.dff_dst.info.sample_rate, 5644800)
def test_bits_per_sample(self):
self.failUnlessEqual(self.dff_1.info.bits_per_sample, 1)
def test_bitrate(self):
self.failUnlessEqual(self.dff_1.info.bitrate, 2822400)
self.failUnlessEqual(self.dff_2.info.bitrate, 11289600)
self.failUnlessEqual(self.dff_dst.info.bitrate, 0)
def test_notdsf(self):
self.failUnlessRaises(IffError, DSDIFF, os.path.join(
DATA_DIR, '2822400-1ch-0s-silence.dsf'))
def test_pprint(self):
self.failUnless(self.dff_1.pprint())
def test_mime(self):
self.failUnless("audio/x-dff" in self.dff_1.mime)
def test_update_tags(self):
from mutagen.id3 import TIT1
tags = self.dff_id3.tags
tags.add(TIT1(encoding=3, text="foobar"))
tags.save()
new = DSDIFF(self.dff_id3.filename)
self.failUnlessEqual(new["TIT1"], ["foobar"])
def test_delete_tags(self):
self.dff_id3.tags.delete()
new = DSDIFF(self.dff_id3.filename)
self.failUnlessEqual(new.tags, None)
def test_save_tags(self):
from mutagen.id3 import TIT1
self.dff_no_id3.add_tags()
tags = self.dff_no_id3.tags
tags.add(TIT1(encoding=3, text="foobar"))
tags.save(self.dff_no_id3.filename)
new = DSDIFF(self.dff_no_id3.filename)
self.failUnlessEqual(new["TIT1"], ["foobar"])
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