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Added command line options
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Barry Warsaw
parent
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1 changed files with 273 additions and 1 deletions
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#! /usr/env/bin python
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#! /usr/bin/env python
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"""Program to control the Solaris audio device.
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When no arguments are given, this pops up a graphical window which lets you
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choose which audio output device you want sound to go to.
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This program can be driven via the command line, and when done so, no window
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pops up. Here are the options:
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--headphones[={0,1}]
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-p[={0,1}]
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Set the headphones output device. With no value, it toggles the
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headphone device. With a value, 0 turns the headphones off and 1
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turns the headphones on.
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--speaker[={0,1}]
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-s[={0,1}]
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Set the speaker output device. Value semantics are the same as
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above.
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--lineout[={0,1}]
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-l[={0,1}]
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Set the line out output device. Value semantics are the same as
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above.
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--help
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-h
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Print this message and exit.
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"""
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import sys
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from Tkinter import *
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import sunaudiodev
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from SUNAUDIODEV import *
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# Milliseconds between interrupt checks
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KEEPALIVE_TIMER = 500
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class MainWindow:
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def __init__(self):
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self.__tkroot = tkroot = Tk(className='Pynche')
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tkroot.withdraw()
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# create the menubar
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menubar = Menu(tkroot)
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#
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# File menu
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#
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filemenu = Menu(menubar, tearoff=0)
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filemenu.add_command(label='Quit',
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command=self.__quit,
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accelerator='Alt-Q',
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underline=0)
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#
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# Tie them together
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#
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menubar.add_cascade(label='File',
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menu=filemenu,
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underline=0)
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# now create the top level window
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root = self.__root = Toplevel(tkroot, class_='Audiopy', menu=menubar)
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root.protocol('WM_DELETE_WINDOW', self.__quit)
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root.title('Audiopy')
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root.iconname('Audiopy')
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root.tk.createtimerhandler(KEEPALIVE_TIMER, self.__keepalive)
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root.bind('<Alt-q>', self.__quit)
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root.bind('<Alt-Q>', self.__quit)
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#
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# Open up the audio control device and query for the current output
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# device
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self.__devctl = sunaudiodev.open('control')
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info = self.__devctl.getinfo()
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#
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# create the speaker/headphone radio button
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label = Label(root, text='Output to:')
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label.grid(row=0, column=0, sticky=E)
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self.__spkvar = IntVar()
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btn = Checkbutton(root,
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text='Speaker',
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variable=self.__spkvar,
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onvalue=SPEAKER,
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command=self.__outputto,
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underline=0)
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btn.grid(row=0, column=1, sticky=W)
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root.bind('<Alt-s>', self.__speaker)
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root.bind('<Alt-S>', self.__speaker)
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self.__headvar = IntVar()
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btn = Checkbutton(root,
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text='Headphones',
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variable=self.__headvar,
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onvalue=HEADPHONE,
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command=self.__outputto,
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underline=0)
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btn.grid(row=1, column=1, sticky=W)
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root.bind('<Alt-h>', self.__headphones)
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root.bind('<Alt-H>', self.__headphones)
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self.__linevar = IntVar()
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btn = Checkbutton(root,
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variable=self.__linevar,
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onvalue=LINE_OUT,
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text='Line out',
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command=self.__outputto,
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underline=0)
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btn.grid(row=2, column=1, sticky=W)
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root.bind('<Alt-l>', self.__lineout)
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root.bind('<Alt-L>', self.__lineout)
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def __quit(self, event=None):
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self.__devctl.close()
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self.__root.quit()
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def __keepalive(self):
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# Exercise the Python interpreter regularly so keyboard interrupts get
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# through.
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self.__tkroot.tk.createtimerhandler(KEEPALIVE_TIMER, self.__keepalive)
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#
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# We have to poll because the device could have changed state and the
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# underlying module does not support the SIGPOLL notification
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# interface.
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info = self.__devctl.getinfo()
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self.__spkvar.set(info.o_port & SPEAKER)
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self.__headvar.set(info.o_port & HEADPHONE)
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self.__linevar.set(info.o_port & LINE_OUT)
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def __outputto(self, event=None):
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info = self.__devctl.getinfo()
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info.o_port = self.__spkvar.get() + \
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self.__headvar.get() + \
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self.__linevar.get()
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self.__devctl.setinfo(info)
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def __getset(self, var, onvalue):
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if var.get():
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var.set(0)
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else:
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var.set(onvalue)
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self.__outputto()
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def __speaker(self, event=None):
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self.__getset(self.__spkvar, SPEAKER)
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def __headphones(self, event=None):
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self.__getset(self.__headvar, HEADPHONE)
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def __lineout(self, event=None):
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self.__getset(self.__linevar, LINE_OUT)
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def start(self):
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self.__keepalive()
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self.__tkroot.mainloop()
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def usage(msg='', code=1):
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print __doc__
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print msg
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sys.exit(code)
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def main():
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if len(sys.argv) == 1:
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# GUI
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w = MainWindow()
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w.start()
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return
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# command line
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sval = None
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hval = None
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lval = None
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for arg in sys.argv[1:]:
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if arg in ('-h', '--help'):
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usage(code=0)
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# SPEAKER
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elif arg in ('-s', '--speaker'):
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sval = -1
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elif arg[:3] == '-s=':
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try:
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sval = int(arg[3:])
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except ValueError:
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pass
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if sval <> 0 and sval <> 1:
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usage('Invalid option: ' + arg)
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elif arg[:10] == '--speaker=':
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try:
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sval = int(arg[10:])
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except ValueError:
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pass
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if sval <> 0 and sval <> 1:
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usage('Invalid option: ' + arg)
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# HEADPHONES
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elif arg in ('-p', '--headphones'):
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hval = -1
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elif arg[:3] == '-p=':
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try:
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hval = int(arg[3:])
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except ValueError:
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pass
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if hval <> 0 and hval <> 1:
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usage('Invalid option: ' + arg)
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elif arg[:13] == '--headphones=':
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try:
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hval = int(arg[130:])
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except ValueError:
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pass
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if hval <> 0 and hval <> 1:
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usage('Invalid option: ' + arg)
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# LINEOUT
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elif arg in ('-l', '--lineout'):
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lval = -1
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elif arg[:3] == '-l=':
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try:
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lval = int(arg[3:])
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except ValueError:
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pass
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if lval <> 0 and lval <> 1:
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usage('Invalid option: ' + arg)
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elif arg[:10] == '--lineout=':
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try:
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lval = int(arg[10:])
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except ValueError:
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pass
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if lval <> 0 and lval <> 1:
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usage('Invalid option: ' + arg)
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else:
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usage('Invalid option: ' + arg)
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# now set the values
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try:
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devctl = sunaudiodev.open('control')
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info = devctl.getinfo()
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if sval is not None:
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if sval == -1:
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if info.o_port & SPEAKER:
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sval = 0
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else:
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sval = SPEAKER
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else:
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sval = sval * SPEAKER
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else:
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sval = info.o_port & SPEAKER
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if hval is not None:
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if hval == -1:
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if info.o_port & HEADPHONE:
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hval = 0
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else:
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hval = HEADPHONE
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else:
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hval = hval * HEADPHONE
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else:
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hval = info.o_port & HEADPHONE
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if lval is not None:
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if lval == -1:
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if info.o_port & LINE_OUT:
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lval = 0
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else:
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lval = LINE_OUT
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else:
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lval = lval * LINE_OUT
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else:
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lval = info.o_port & LINE_OUT
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info.o_port = sval + hval + lval
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devctl.setinfo(info)
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finally:
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devctl.close()
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if __name__ == '__main__':
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main()
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