| 1 | from test import test_support
|
|---|
| 2 | test_support.requires('audio')
|
|---|
| 3 |
|
|---|
| 4 | from test.test_support import findfile, run_unittest
|
|---|
| 5 |
|
|---|
| 6 | import errno
|
|---|
| 7 | import sys
|
|---|
| 8 | import audioop
|
|---|
| 9 | import unittest
|
|---|
| 10 |
|
|---|
| 11 | linuxaudiodev = test_support.import_module('linuxaudiodev', deprecated=True)
|
|---|
| 12 | sunaudio = test_support.import_module('sunaudio', deprecated=True)
|
|---|
| 13 |
|
|---|
| 14 | SND_FORMAT_MULAW_8 = 1
|
|---|
| 15 |
|
|---|
| 16 | class LinuxAudioDevTests(unittest.TestCase):
|
|---|
| 17 |
|
|---|
| 18 | def setUp(self):
|
|---|
| 19 | self.dev = linuxaudiodev.open('w')
|
|---|
| 20 |
|
|---|
| 21 | def tearDown(self):
|
|---|
| 22 | self.dev.close()
|
|---|
| 23 |
|
|---|
| 24 | def test_methods(self):
|
|---|
| 25 | # at least check that these methods can be invoked
|
|---|
| 26 | self.dev.bufsize()
|
|---|
| 27 | self.dev.obufcount()
|
|---|
| 28 | self.dev.obuffree()
|
|---|
| 29 | self.dev.getptr()
|
|---|
| 30 | self.dev.fileno()
|
|---|
| 31 |
|
|---|
| 32 | def test_play_sound_file(self):
|
|---|
| 33 | path = findfile("audiotest.au")
|
|---|
| 34 | fp = open(path, 'r')
|
|---|
| 35 | size, enc, rate, nchannels, extra = sunaudio.gethdr(fp)
|
|---|
| 36 | data = fp.read()
|
|---|
| 37 | fp.close()
|
|---|
| 38 |
|
|---|
| 39 | if enc != SND_FORMAT_MULAW_8:
|
|---|
| 40 | self.fail("Expect .au file with 8-bit mu-law samples")
|
|---|
| 41 |
|
|---|
| 42 | # convert the data to 16-bit signed
|
|---|
| 43 | data = audioop.ulaw2lin(data, 2)
|
|---|
| 44 |
|
|---|
| 45 | # set the data format
|
|---|
| 46 | if sys.byteorder == 'little':
|
|---|
| 47 | fmt = linuxaudiodev.AFMT_S16_LE
|
|---|
| 48 | else:
|
|---|
| 49 | fmt = linuxaudiodev.AFMT_S16_BE
|
|---|
| 50 |
|
|---|
| 51 | # set parameters based on .au file headers
|
|---|
| 52 | self.dev.setparameters(rate, 16, nchannels, fmt)
|
|---|
| 53 | self.dev.write(data)
|
|---|
| 54 | self.dev.flush()
|
|---|
| 55 |
|
|---|
| 56 | def test_errors(self):
|
|---|
| 57 | size = 8
|
|---|
| 58 | fmt = linuxaudiodev.AFMT_U8
|
|---|
| 59 | rate = 8000
|
|---|
| 60 | nchannels = 1
|
|---|
| 61 | try:
|
|---|
| 62 | self.dev.setparameters(-1, size, nchannels, fmt)
|
|---|
| 63 | except ValueError, err:
|
|---|
| 64 | self.assertEqual(err.args[0], "expected rate >= 0, not -1")
|
|---|
| 65 | try:
|
|---|
| 66 | self.dev.setparameters(rate, -2, nchannels, fmt)
|
|---|
| 67 | except ValueError, err:
|
|---|
| 68 | self.assertEqual(err.args[0], "expected sample size >= 0, not -2")
|
|---|
| 69 | try:
|
|---|
| 70 | self.dev.setparameters(rate, size, 3, fmt)
|
|---|
| 71 | except ValueError, err:
|
|---|
| 72 | self.assertEqual(err.args[0], "nchannels must be 1 or 2, not 3")
|
|---|
| 73 | try:
|
|---|
| 74 | self.dev.setparameters(rate, size, nchannels, 177)
|
|---|
| 75 | except ValueError, err:
|
|---|
| 76 | self.assertEqual(err.args[0], "unknown audio encoding: 177")
|
|---|
| 77 | try:
|
|---|
| 78 | self.dev.setparameters(rate, size, nchannels, linuxaudiodev.AFMT_U16_LE)
|
|---|
| 79 | except ValueError, err:
|
|---|
| 80 | self.assertEqual(err.args[0], "for linear unsigned 16-bit little-endian "
|
|---|
| 81 | "audio, expected sample size 16, not 8")
|
|---|
| 82 | try:
|
|---|
| 83 | self.dev.setparameters(rate, 16, nchannels, fmt)
|
|---|
| 84 | except ValueError, err:
|
|---|
| 85 | self.assertEqual(err.args[0], "for linear unsigned 8-bit audio, expected "
|
|---|
| 86 | "sample size 8, not 16")
|
|---|
| 87 |
|
|---|
| 88 | def test_main():
|
|---|
| 89 | try:
|
|---|
| 90 | dsp = linuxaudiodev.open('w')
|
|---|
| 91 | except linuxaudiodev.error, msg:
|
|---|
| 92 | if msg.args[0] in (errno.EACCES, errno.ENOENT, errno.ENODEV, errno.EBUSY):
|
|---|
| 93 | raise unittest.SkipTest(msg)
|
|---|
| 94 | raise
|
|---|
| 95 | dsp.close()
|
|---|
| 96 | run_unittest(LinuxAudioDevTests)
|
|---|
| 97 |
|
|---|
| 98 | if __name__ == '__main__':
|
|---|
| 99 | test_main()
|
|---|
