class Treplay_gain(TestCase): # -6dB is approximately equal to half magnitude minus_6db = 0.501187234 def setUp(self): self.rg_data = {"replaygain_album_gain": "-1.00 dB", "replaygain_album_peak": "1.1", "replaygain_track_gain": "+1.0000001 dB", "replaygain_track_peak": "0.9"} self.song = AudioFile(self.rg_data) self.no_rg_song = AudioFile() def test_no_rg_song(self): scale = self.no_rg_song.replay_gain(["track"], 0, -6.0) self.failUnlessAlmostEqual(scale, self.minus_6db) scale = self.no_rg_song.replay_gain(["track"], +10, +10) self.failUnlessEqual(scale, 1.0) scale = self.no_rg_song.replay_gain(["track"], -16.0, +10) self.failUnlessAlmostEqual(scale, self.minus_6db) def test_nogain(self): self.failUnlessEqual(self.song.replay_gain(["none", "track"]), 1) def test_fallback_track(self): del(self.song["replaygain_track_gain"]) self.failUnlessAlmostEqual( self.song.replay_gain(["track"], 0, -6.0), self.minus_6db) def test_fallback_album(self): del(self.song["replaygain_album_gain"]) self.failUnlessAlmostEqual( self.song.replay_gain(["album"], 0, -6.0), self.minus_6db) def test_fallback_and_preamp(self): del(self.song["replaygain_track_gain"]) self.failUnlessEqual(self.song.replay_gain(["track"], 9, -9), 1) def test_preamp_track(self): self.failUnlessAlmostEqual( self.song.replay_gain(["track"], -7.0, 0), self.minus_6db) def test_preamp_album(self): self.failUnlessAlmostEqual( self.song.replay_gain(["album"], -5.0, 0), self.minus_6db) def test_preamp_clip(self): # Make sure excess pre-amp won't clip a track (with peak data) self.failUnlessAlmostEqual( self.song.replay_gain(["track"], 12.0, 0), 1.0 / 0.9) def test_trackgain(self): self.failUnless(self.song.replay_gain(["track"]) > 1) def test_albumgain(self): self.failUnless(self.song.replay_gain(["album"]) < 1) def test_invalid(self): self.song["replaygain_album_gain"] = "fdsodgbdf" self.failUnlessEqual(self.song.replay_gain(["album"]), 1) def test_track_fallback(self): radio_rg = self.song.replay_gain(["track"]) del(self.song["replaygain_album_gain"]) del(self.song["replaygain_album_peak"]) # verify defaulting to track when album is present self.failUnlessAlmostEqual( self.song.replay_gain(["album", "track"]), radio_rg) def test_numeric_rg_tags(self): """"Tests fully-numeric (ie no "db") RG tags. See Issue 865""" self.failUnless(self.song("replaygain_album_gain"), "-1.00 db") for key, exp in self.rg_data.items(): # Hack the nasties off and produce the "real" expected value exp = float(exp.split(" ")[0]) # Compare as floats. Seems fairer. album_rg = self.song("~#%s" % key) try: val = float(album_rg) except ValueError: self.fail("Invalid %s returned: %s" % (key, album_rg)) self.failUnlessAlmostEqual( val, exp, places=5, msg="%s should be %s not %s" % (key, exp, val))
class Treplay_gain(TestCase): # -6dB is approximately equal to half magnitude minus_6db = 0.501187234 def setUp(self): self.rg_data = { "replaygain_album_gain": "-1.00 dB", "replaygain_album_peak": "1.1", "replaygain_track_gain": "+1.0000001 dB", "replaygain_track_peak": "0.9" } self.song = AudioFile(self.rg_data) self.no_rg_song = AudioFile() def test_large(self): rg_data = {"replaygain_track_gain": "9999999 dB"} song = AudioFile(rg_data) assert song.replay_gain(["track"], 0, 0) == 1.0 assert song.replay_gain([], 0, 99999999999) == 1.0 def test_no_rg_song(self): scale = self.no_rg_song.replay_gain(["track"], 0, -6.0) self.failUnlessAlmostEqual(scale, self.minus_6db) scale = self.no_rg_song.replay_gain(["track"], +10, +10) self.failUnlessEqual(scale, 1.0) scale = self.no_rg_song.replay_gain(["track"], -16.0, +10) self.failUnlessAlmostEqual(scale, self.minus_6db) def test_nogain(self): self.failUnlessEqual(self.song.replay_gain(["none", "track"]), 1) def test_fallback_track(self): del (self.song["replaygain_track_gain"]) self.failUnlessAlmostEqual(self.song.replay_gain(["track"], 0, -6.0), self.minus_6db) def test_fallback_album(self): del (self.song["replaygain_album_gain"]) self.failUnlessAlmostEqual(self.song.replay_gain(["album"], 0, -6.0), self.minus_6db) def test_fallback_and_preamp(self): del (self.song["replaygain_track_gain"]) self.failUnlessEqual(self.song.replay_gain(["track"], 9, -9), 1) def test_preamp_track(self): self.failUnlessAlmostEqual(self.song.replay_gain(["track"], -7.0, 0), self.minus_6db) def test_preamp_album(self): self.failUnlessAlmostEqual(self.song.replay_gain(["album"], -5.0, 0), self.minus_6db) def test_preamp_clip(self): # Make sure excess pre-amp won't clip a track (with peak data) self.failUnlessAlmostEqual(self.song.replay_gain(["track"], 12.0, 0), 1.0 / 0.9) def test_trackgain(self): self.failUnless(self.song.replay_gain(["track"]) > 1) def test_albumgain(self): self.failUnless(self.song.replay_gain(["album"]) < 1) def test_invalid(self): self.song["replaygain_album_gain"] = "fdsodgbdf" self.failUnlessEqual(self.song.replay_gain(["album"]), 1) def test_track_fallback(self): radio_rg = self.song.replay_gain(["track"]) del (self.song["replaygain_album_gain"]) del (self.song["replaygain_album_peak"]) # verify defaulting to track when album is present self.failUnlessAlmostEqual(self.song.replay_gain(["album", "track"]), radio_rg) def test_numeric_rg_tags(self): """Tests fully-numeric (ie no "db") RG tags. See Issue 865""" self.failUnless(self.song("replaygain_album_gain"), "-1.00 db") for key, exp in self.rg_data.items(): # Hack the nasties off and produce the "real" expected value exp = float(exp.split(" ")[0]) # Compare as floats. Seems fairer. album_rg = self.song("~#%s" % key) try: val = float(album_rg) except ValueError: self.fail("Invalid %s returned: %s" % (key, album_rg)) self.failUnlessAlmostEqual(val, exp, places=5, msg="%s should be %s not %s" % (key, exp, val))
def test_large(self): rg_data = {"replaygain_track_gain": "9999999 dB"} song = AudioFile(rg_data) assert song.replay_gain(["track"], 0, 0) == 1.0 assert song.replay_gain([], 0, 99999999999) == 1.0