Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / sam-t2 / devtools / amd64 / lib / python2.4 / test / test_linuxaudiodev.py

from test import test_support
test_support.requires('audio')

from test.test_support import verbose, findfile, TestFailed, TestSkipped

import errno
import fcntl
import linuxaudiodev
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 = linuxaudiodev.open('w')
   except linuxaudiodev.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 = linuxaudiodev.AFMT_S16_LE
   else:
       fmt = linuxaudiodev.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 = linuxaudiodev.open("w")
   size = 8
   fmt = linuxaudiodev.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, linuxaudiodev.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()