148 lines
5.2 KiB
Python
Executable File
148 lines
5.2 KiB
Python
Executable File
#!/usr/bin/env python
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"""A program to show use of audio controls. See cdda-player from the
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libcdio distribution for a more complete program.
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"""
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#
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# Copyright (C) 2006, 2008 Rocky Bernstein <rocky@gnu.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import sys, os
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from optparse import OptionParser
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libdir = os.path.join(os.path.dirname(__file__), '..')
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if libdir[-1] != os.path.sep:
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libdir += os.path.sep
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sys.path.insert(0, libdir)
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import pycdio
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import cdio
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def process_options():
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program = os.path.basename(sys.argv[0])
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usage_str="""%s [options] [device]
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Issue analog audio CD controls - like playing""" % program
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optparser = OptionParser(usage=usage_str)
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optparser.add_option("-c", "--close", dest="close",
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action="store", type='string',
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help="close CD tray")
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optparser.add_option("-p", "--play", dest="play",
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action="store_true", default=False,
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help="Play entire CD")
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optparser.add_option("-P", "--pause", dest="pause",
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action="store_true", default=False,
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help="pause playing")
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optparser.add_option("-E", "--eject", dest="eject",
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action="store_true", default=False,
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help="Eject CD")
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optparser.add_option("-r", "--resume", dest="resume",
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action="store_true", default=False,
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help="resume playing")
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optparser.add_option("-s", "--stop", dest="stop",
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action="store_true", default=False,
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help="stop playing")
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optparser.add_option("-t", "--track", dest="track",
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action="store", type='int',
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help="play a single track")
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return optparser.parse_args()
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opts, argv = process_options()
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# Handle closing the CD-ROM tray if that was specified.
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if opts.close:
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try:
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device_name = opts.close
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cdio.close_tray(device_name)
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except cdio.DeviceException:
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print "Closing tray of CD-ROM drive %s failed" % device_name
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# While sys.argv[0] is a program name and sys.argv[1] the first
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# option, argv[0] is the first unprocessed option -- roughly
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# the equivalent of sys.argv[1].
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if argv[0:]:
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try:
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d = cdio.Device(argv[0])
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except IOError:
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print "Problem opening CD-ROM: %s" % device_name
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sys.exit(1)
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else:
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try:
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d = cdio.Device(driver_id=pycdio.DRIVER_UNKNOWN)
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except IOError:
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print "Problem finding a CD-ROM"
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sys.exit(1)
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device_name=d.get_device()
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if opts.play:
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if d.get_disc_mode() != 'CD-DA':
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print "The disc on %s I found was not CD-DA, but %s" \
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% (device_name, d.get_disc_mode())
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print "I have bad feeling about trying to play this..."
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try:
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start_lsn = d.get_first_track().get_lsn()
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end_lsn=d.get_disc_last_lsn()
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print "Playing entire CD on %s" % device_name
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d.audio_play_lsn(start_lsn, end_lsn)
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except cdio.TrackError:
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pass
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elif opts.track is not None:
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try:
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if opts.track > d.get_last_track().track:
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print "Requested track %d but CD only has %d tracks" \
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% (opts.track, d.get_last_track().track)
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sys.exit(2)
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if opts.track < d.get_first_track().track:
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print "Requested track %d but first track on CD is %d" \
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% (opts.track, d.get_first_track().track)
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sys.exit(2)
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print "Playing track %d on %s" % (opts.track, device_name)
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start_lsn = d.get_track(opts.track).get_lsn()
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end_lsn = d.get_track(opts.track+1).get_lsn()
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d.audio_play_lsn(start_lsn, end_lsn)
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except cdio.TrackError:
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pass
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elif opts.pause:
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try:
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print "Pausing playing in drive %s" % device_name
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d.audio_pause()
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except cdio.DeviceException:
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print "Pause failed on drive %s" % device_name
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elif opts.resume:
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try:
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print "Resuming playing in drive %s" % device_name
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d.audio_resume()
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except cdio.DeviceException:
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print "Resume failed on drive %s" % device_name
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elif opts.stop:
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try:
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print "Stopping playing in drive %s" % device_name
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d.audio_stop()
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except cdio.DeviceException:
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print "Stopping failed on drive %s" % device_name
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elif opts.eject:
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try:
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print "Ejecting CD in drive %s" % device_name
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d.eject_media()
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except cdio.DriverUnsupportedError:
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print "Eject not supported for %s" % device_name
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except cdio.DeviceException:
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print "Eject of CD-ROM drive %s failed" % device_name
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d.close()
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