from 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): 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()