[Python-checkins] python/dist/src/Lib/test test_ossaudiodev.py,NONE,1.1

2002年12月10日 08:24:25 -0800

Update of /cvsroot/python/python/dist/src/Lib/test
In directory sc8-pr-cvs1:/tmp/cvs-serv30552
Added Files:
	test_ossaudiodev.py 
Log Message:
Initial revision is rev 1.8 of test_linuxaudiodev.py, with
the obvious s/linuxaudiodev/ossaudiodev/ change made.
--- NEW FILE: test_ossaudiodev.py ---
from test.test_support import verbose, findfile, TestFailed, TestSkipped
import errno
import fcntl
import ossaudiodev
import os
import sys
import select
import sunaudio
import time
import audioop
SND_FORMAT_MULAW_8 = 1
def play_sound_file(path):
 fp = open(path, 'r')
 size, enc, rate, nchannels, extra = sunaudio.gethdr(fp)
 data = fp.read()
 fp.close()
 if enc != SND_FORMAT_MULAW_8:
 print "Expect .au file with 8-bit mu-law samples"
 return
 try:
 a = ossaudiodev.open('w')
 except ossaudiodev.error, msg:
 if msg[0] in (errno.EACCES, errno.ENODEV, errno.EBUSY):
 raise TestSkipped, msg
 raise TestFailed, msg
 # convert the data to 16-bit signed
 data = audioop.ulaw2lin(data, 2)
 # set the data format
 if sys.byteorder == 'little':
 fmt = ossaudiodev.AFMT_S16_LE
 else:
 fmt = ossaudiodev.AFMT_S16_BE
 # at least check that these methods can be invoked
 a.bufsize()
 a.obufcount()
 a.obuffree()
 a.getptr()
 a.fileno()
 # set parameters based on .au file headers
 a.setparameters(rate, 16, nchannels, fmt)
 a.write(data)
 a.flush()
 a.close()
def test_errors():
 a = ossaudiodev.open("w")
 size = 8
 fmt = ossaudiodev.AFMT_U8
 rate = 8000
 nchannels = 1
 try:
 a.setparameters(-1, size, nchannels, fmt)
 except ValueError, msg:
 print msg
 try:
 a.setparameters(rate, -2, nchannels, fmt)
 except ValueError, msg:
 print msg
 try:
 a.setparameters(rate, size, 3, fmt)
 except ValueError, msg:
 print msg
 try:
 a.setparameters(rate, size, nchannels, 177)
 except ValueError, msg:
 print msg
 try:
 a.setparameters(rate, size, nchannels, ossaudiodev.AFMT_U16_LE)
 except ValueError, msg:
 print msg
 try:
 a.setparameters(rate, 16, nchannels, fmt)
 except ValueError, msg:
 print msg
def test():
 play_sound_file(findfile('audiotest.au'))
 test_errors()
test()