97 lines
2.2 KiB
Python
97 lines
2.2 KiB
Python
from test import test_support
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test_support.requires('audio')
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from test.test_support import verbose, findfile, TestFailed, TestSkipped
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import errno
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import fcntl
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import ossaudiodev
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import os
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import sys
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import select
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import sunaudio
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import time
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import audioop
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SND_FORMAT_MULAW_8 = 1
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def read_sound_file(path):
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fp = open(path, 'rb')
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size, enc, rate, nchannels, extra = sunaudio.gethdr(fp)
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data = fp.read()
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fp.close()
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if enc != SND_FORMAT_MULAW_8:
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print "Expect .au file with 8-bit mu-law samples"
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return
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# Convert the data to 16-bit signed.
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data = audioop.ulaw2lin(data, 2)
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return (data, rate, 16, nchannels)
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def play_sound_file(data, rate, ssize, nchannels):
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try:
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a = ossaudiodev.open('w')
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except IOError, msg:
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if msg[0] in (errno.EACCES, errno.ENODEV, errno.EBUSY):
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raise TestSkipped, msg
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raise TestFailed, msg
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# set the data format
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if sys.byteorder == 'little':
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fmt = ossaudiodev.AFMT_S16_LE
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else:
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fmt = ossaudiodev.AFMT_S16_BE
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# at least check that these methods can be invoked
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a.bufsize()
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a.obufcount()
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a.obuffree()
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a.getptr()
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a.fileno()
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# set parameters based on .au file headers
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a.setparameters(rate, 16, nchannels, fmt)
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a.write(data)
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a.flush()
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a.close()
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def test_errors():
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a = ossaudiodev.open("w")
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size = 8
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fmt = ossaudiodev.AFMT_U8
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rate = 8000
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nchannels = 1
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try:
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a.setparameters(-1, size, nchannels, fmt)
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except ValueError, msg:
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print msg
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try:
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a.setparameters(rate, -2, nchannels, fmt)
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except ValueError, msg:
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print msg
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try:
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a.setparameters(rate, size, 3, fmt)
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except ValueError, msg:
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print msg
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try:
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a.setparameters(rate, size, nchannels, 177)
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except ValueError, msg:
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print msg
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try:
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a.setparameters(rate, size, nchannels, ossaudiodev.AFMT_U16_LE)
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except ValueError, msg:
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print msg
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try:
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a.setparameters(rate, 16, nchannels, fmt)
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except ValueError, msg:
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print msg
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def test():
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(data, rate, ssize, nchannels) = read_sound_file(findfile('audiotest.au'))
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play_sound_file(data, rate, ssize, nchannels)
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test_errors()
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test()
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