def testMultiStream(self):
# stream 0 of multistream1.mka is the same as stream 1 of multistream2.mka
p = Pool()
stream0 = sAudioLoader(filename=join(testdata.audio_dir, 'generated', 'multistream', 'multistream1.mka'), audioStream=0)
stream1 = sAudioLoader(filename=join(testdata.audio_dir, 'generated', 'multistream', 'multistream2.mka'), audioStream=1)
stream0.audio >> (p, 'stream0')
stream0.numberChannels >> (p, 'nChannels0')
stream0.sampleRate >> (p, 'sampleRate0')
stream0.md5 >> (p, 'md50')
stream0.bit_rate >> (p, 'bit_rate0')
stream0.codec >> (p, 'codec0')
stream1.audio >> (p, 'stream1')
stream1.numberChannels >> (p, 'nChannels1')
stream1.sampleRate >> (p, 'sampleRate1')
stream1.md5 >> (p, 'md51')
stream1.bit_rate >> (p, 'bit_rate1')
stream1.codec >> (p, 'codec1')
run(stream0)
run(stream1)
self.assertEqualVector(p['stream0'][0], p['stream1'][0])
# An exception should be thrown if the required audioStream is out of bounds
self.assertConfigureFails(sAudioLoader(), {'filename': join(testdata.audio_dir, 'generated', 'multistream', 'multistream1.mka'), 'audioStream': 2})
def testMultiStream(self):
# stream 0 of multistream1.mka is the same as stream 1 of multistream2.mka
p = Pool()
stream0 = sAudioLoader(filename=join(testdata.audio_dir, 'generated', 'multistream', 'multistream1.mka'), audioStream=0)
stream1 = sAudioLoader(filename=join(testdata.audio_dir, 'generated', 'multistream', 'multistream2.mka'), audioStream=1)
stream0.audio >> (p, 'stream0')
stream0.numberChannels >> (p, 'nChannels0')
stream0.sampleRate >> (p, 'sampleRate0')
stream0.md5 >> (p, 'md50')
stream0.bit_rate >> (p, 'bit_rate0')
stream0.codec >> (p, 'codec0')
stream1.audio >> (p, 'stream1')
stream1.numberChannels >> (p, 'nChannels1')
stream1.sampleRate >> (p, 'sampleRate1')
stream1.md5 >> (p, 'md51')
stream1.bit_rate >> (p, 'bit_rate1')
stream1.codec >> (p, 'codec1')
run(stream0)
run(stream1)
self.assertEqualVector(p['stream0'][0], p['stream1'][0])
# An exception should be thrown if the required audioStream is out of bounds
self.assertConfigureFails(sAudioLoader(), {'filename': join(testdata.audio_dir, 'generated', 'multistream', 'multistream1.mka'), 'audioStream': 2})
def pcm(self, sampleRate, filename, stereo=False):
# as comparing sample by sample will probably fail the results, in this test
# a filename that lasts 10s with impulses of 1 every second is loaded.
# the sum of the impulses computed and compared with the expectedSum value.
loader = sAudioLoader(filename=join(testdata.audio_dir, filename))
p = Pool()
loader.audio >> (p, 'audio')
loader.numberChannels >> (p, 'nChannels')
loader.sampleRate >> (p, 'sampleRate')
loader.md5 >> (p, 'md5')
loader.bit_rate >> (p, 'bit_rate')
loader.codec >> (p, 'codec')
run(loader)
self.assertEqual(p['sampleRate'], sampleRate)
if stereo: self.assertEqual(p['nChannels'], 2)
else: self.assertEqual(p['nChannels'], 1)
audio = p['audio']
self.assertEqual(len(audio), 10*sampleRate)
sum = 0
# compute sum
for stereoSample in audio:
sum += stereoSample[0] + stereoSample[1]
if stereo: self.assertAlmostEqual(sum, 18, 1e-3)
else: self.assertAlmostEqual(sum, 9, 1e-3)
def pcm(self, sampleRate, filename, stereo=False):
# as comparing sample by sample will probably fail the results, in this test
# a filename that lasts 10s with impulses of 1 every second is loaded.
# the sum of the impulses computed and compared with the expectedSum value.
loader = sAudioLoader(filename=join(testdata.audio_dir, filename))
p = Pool()
loader.audio >> (p, "audio")
loader.numberChannels >> (p, "nChannels")
loader.sampleRate >> (p, "sampleRate")
loader.md5 >> (p, "md5")
run(loader)
self.assertEqual(p["sampleRate"], sampleRate)
if stereo:
self.assertEqual(p["nChannels"], 2)
else:
self.assertEqual(p["nChannels"], 1)
audio = p["audio"]
self.assertEqual(len(audio), 10 * sampleRate)
sum = 0
# compute sum
for stereoSample in audio:
sum += stereoSample[0] + stereoSample[1]
if stereo:
self.assertAlmostEqual(sum, 18, 1e-3)
else:
self.assertAlmostEqual(sum, 9, 1e-3)
def compressed(self, sampleRate, filename, stereo=False):
# for compressed files we will compare only those values above certain threshold.
noisefloor = 10.0/32767.0
loader = sAudioLoader(filename=join(testdata.audio_dir, filename))
p = Pool()
loader.audio >> (p, 'audio')
loader.numberChannels >> (p, 'nChannels')
loader.sampleRate >> (p, 'sampleRate')
run(loader)
if stereo: self.assertEqual(p['nChannels'], 2)
else: self.assertEqual(p['nChannels'], 1)
self.assertEqual(p['sampleRate'], sampleRate)
sum = 0
for stereoSample in p['audio']:
left = abs(stereoSample[0])
right = abs(stereoSample[1])
# don't add absolute values!
if left > noisefloor: sum += round(stereoSample[0])
if right > noisefloor: sum += round(stereoSample[1])
# TODO: ffmpeg seems to decode ogg files in opposite phase, thus:
if sum < 0:
print 'WARNING: Essentia uses a version of FFMpeg that does reverse decoding of Ogg files...'
sum = abs(sum)
if stereo: self.assertEqual(sum, 18)
else: self.assertEqual(sum, 9)
def compressed(self, sampleRate, filename, stereo=False):
# for compressed files we will compare only those values above certain threshold.
noisefloor = 10.0 / 32767.0
loader = sAudioLoader(filename=join(testdata.audio_dir, filename))
p = Pool()
loader.audio >> (p, 'audio')
loader.numberChannels >> (p, 'nChannels')
loader.sampleRate >> (p, 'sampleRate')
run(loader)
if stereo: self.assertEqual(p['nChannels'], 2)
else: self.assertEqual(p['nChannels'], 1)
self.assertEqual(p['sampleRate'], sampleRate)
sum = 0
for stereoSample in p['audio']:
left = abs(stereoSample[0])
right = abs(stereoSample[1])
# don't add absolute values!
if left > noisefloor: sum += round(stereoSample[0])
if right > noisefloor: sum += round(stereoSample[1])
# TODO: ffmpeg seems to decode ogg files in opposite phase, thus:
if sum < 0:
print 'WARNING: Essentia uses a version of FFMpeg that does reverse decoding of Ogg files...'
sum = abs(sum)
if stereo: self.assertEqual(sum, 18)
else: self.assertEqual(sum, 9)
def testMultiChannel(self):
for ext in ['wav', 'aiff', 'flac']:
filename = join(testdata.audio_dir, 'generated', 'multichannel', '4channels.'+ext)
self.assertRaises(RuntimeError, lambda: sAudioLoader(filename=filename))
def testInvalidFile(self):
for ext in ['wav', 'aiff', 'flac', 'mp3', 'ogg']:
self.assertRaises(RuntimeError, lambda: sAudioLoader(filename='unknown.'+ext))
def testMultiChannel(self):
for ext in ["wav", "aiff", "flac"]:
filename = join(testdata.audio_dir, "generated", "multichannel", "4channels." + ext)
self.assertRaises(RuntimeError, lambda: sAudioLoader(filename=filename))
def testInvalidFile(self):
for ext in ["wav", "aiff", "flac", "mp3", "ogg"]:
self.assertRaises(RuntimeError, lambda: sAudioLoader(filename="unknown." + ext))
def testMultiChannel(self):
for ext in ['wav', 'aiff', 'flac']:
filename = join(testdata.audio_dir, 'generated', 'multichannel', '4channels.'+ext)
self.assertRaises(RuntimeError, lambda: sAudioLoader(filename=filename))
def testInvalidFile(self):
for ext in ['wav', 'aiff', 'flac', 'mp3', 'ogg']:
self.assertRaises(RuntimeError, lambda: sAudioLoader(filename='unknown.'+ext))
