| 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 as msg: |
| if msg[0] in (errno.EACCES, errno.ENOENT, 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 as msg: |
| print msg |
| try: |
| a.setparameters(rate, -2, nchannels, fmt) |
| except ValueError as msg: |
| print msg |
| try: |
| a.setparameters(rate, size, 3, fmt) |
| except ValueError as msg: |
| print msg |
| try: |
| a.setparameters(rate, size, nchannels, 177) |
| except ValueError as msg: |
| print msg |
| try: |
| a.setparameters(rate, size, nchannels, linuxaudiodev.AFMT_U16_LE) |
| except ValueError as msg: |
| print msg |
| try: |
| a.setparameters(rate, 16, nchannels, fmt) |
| except ValueError as msg: |
| print msg |
| |
| def test(): |
| play_sound_file(findfile('audiotest.au')) |
| test_errors() |
| |
| test() |