/usr/bin/cddaplay is in audiotools 3.1.1-1+b1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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# Audio Tools, a module and set of tools for manipulating audio data
# Copyright (C) 2007-2015 Brian Langenberger
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
import sys
import time
import select
import os
import tty
import termios
import audiotools
import audiotools.ui
import audiotools.player
from audiotools.cdio import CDDAReader
import audiotools.text as _
if audiotools.ui.AVAILABLE:
urwid = audiotools.ui.urwid
class CDplayGUI(audiotools.ui.PlayerGUI):
def __init__(self, cddareader, track_numbers, metadata, audio_output):
"""cddareader is a CDDAReader object
track_numbers is a list of track numbers to play
metadata is a dict of tracknum -> MetaData values
audio_output is an AudioOutput object"""
self.cddareader = cddareader
track_lengths = cddareader.track_lengths
audiotools.ui.PlayerGUI.__init__(
self,
audiotools.player.CDPlayer(
cddareader=cddareader,
audio_output=audio_output,
next_track_callback=self.next_track),
[(metadata[track_number].track_name
if (metadata[track_number].track_name is not None)
else (u"track %2.2d" % (track_number)),
track_lengths[track_number] // 44100,
(track_number, metadata[track_number]))
for track_number in track_numbers],
sum([track_lengths[track_number] for track_number in
track_numbers]) // 44100)
def select_track(self, radio_button, new_state, user_data,
auto_play=True):
if new_state:
(track_number, metadata) = user_data
track_lengths = self.cddareader.track_lengths
if metadata is not None:
self.update_metadata(
track_name=metadata.track_name,
album_name=metadata.album_name,
artist_name=metadata.artist_name,
track_number=track_number,
track_total=len(track_lengths),
album_number=metadata.album_number,
album_total=metadata.album_total,
pcm_frames=track_lengths[track_number],
channels=2,
sample_rate=44100,
bits_per_sample=16)
else:
self.update_metadata(
track_total=len(track_lengths),
pcm_frames=track_lengths[track_number],
channels=2,
sample_rate=44100,
bits_per_sample=16)
self.player.open(track_number)
if auto_play:
self.player.play()
self.play_pause_button.set_label(_.LAB_PAUSE_BUTTON)
def select_first_track(self):
self.select_track(None, True, (1, metadata[1]), False)
interactive_available = True
else:
interactive_available = False
class CDplayTTY(audiotools.ui.PlayerTTY):
def __init__(self, cddareader, track_list, audio_output):
"""cddareader is a CDDAReader object
track_list is a list of track numbers in the order to be played
audio_output is an AudioOutput object"""
self.cddareader = cddareader
self.track_list = track_list
self.track_index = -1
audiotools.ui.PlayerTTY.__init__(
self,
audiotools.player.CDPlayer(
cddareader=cddareader,
audio_output=audio_output,
next_track_callback=self.next_track))
def previous_track(self):
if self.track_index > 0:
self.track_index -= 1
current_track_number = self.track_list[self.track_index]
self.set_metadata(
track_number=self.track_index + 1,
track_total=len(self.track_list),
channels=2,
sample_rate=44100,
bits_per_sample=16)
self.player.open(current_track_number)
self.player.play()
def next_track(self):
try:
self.track_index += 1
current_track_number = self.track_list[self.track_index]
self.set_metadata(
track_number=self.track_index + 1,
track_total=len(self.track_list),
channels=2,
sample_rate=44100,
bits_per_sample=16)
self.player.open(current_track_number)
self.player.play()
except IndexError:
self.playing_finished = True
if (__name__ == '__main__'):
import argparse
parser = argparse.ArgumentParser(description=_.DESCRIPTION_CDPLAY)
parser.add_argument("--version",
action="version",
version="Python Audio Tools %s" % (audiotools.VERSION))
parser.add_argument("-I", "--interactive",
action="store_true",
default=False,
dest="interactive",
help=_.OPT_INTERACTIVE_OPTIONS)
parser.add_argument("-V", "--verbose",
action="store",
dest="verbosity",
choices=audiotools.VERBOSITY_LEVELS,
default=audiotools.DEFAULT_VERBOSITY,
help=_.OPT_VERBOSE)
parser.add_argument("-o", "--output",
dest="output",
choices=[player.NAME for player in
audiotools.player.available_outputs()],
default=[player.NAME for player in
audiotools.player.available_outputs()][0],
help=_.OPT_OUTPUT_PLAY)
parser.add_argument("-c", "--cdrom",
dest="cdrom",
default=audiotools.DEFAULT_CDROM)
parser.add_argument("--shuffle",
action="store_true",
dest="shuffle",
default=False,
help="shuffle tracks")
lookup = parser.add_argument_group(_.OPT_CAT_CD_LOOKUP)
lookup.add_argument("-M", "--metadata-lookup",
action="store_true",
default=False,
dest="metadata_lookup",
help=_.OPT_METADATA_LOOKUP)
lookup.add_argument("--musicbrainz-server",
dest="musicbrainz_server",
default=audiotools.MUSICBRAINZ_SERVER,
metavar="HOSTNAME")
lookup.add_argument("--musicbrainz-port",
type=int,
dest="musicbrainz_port",
default=audiotools.MUSICBRAINZ_PORT,
metavar="PORT")
lookup.add_argument("--no-musicbrainz",
action="store_false",
dest="use_musicbrainz",
default=audiotools.MUSICBRAINZ_SERVICE,
help=_.OPT_NO_MUSICBRAINZ)
lookup.add_argument("--freedb-server",
dest="freedb_server",
default=audiotools.FREEDB_SERVER,
metavar="HOSTNAME")
lookup.add_argument("--freedb-port",
type=int,
dest="freedb_port",
default=audiotools.FREEDB_PORT,
metavar="PORT")
lookup.add_argument("--no-freedb",
action="store_false",
dest="use_freedb",
default=audiotools.FREEDB_SERVICE,
help=_.OPT_NO_FREEDB)
parser.add_argument("tracks",
type=int,
metavar="TRACK",
nargs="*",
help=_.OPT_TRACK_INDEX)
options = parser.parse_args()
msg = audiotools.Messenger(options.verbosity == "quiet")
if options.interactive and (not interactive_available):
msg.error(_.ERR_URWID_REQUIRED)
msg.output(_.ERR_GET_URWID1)
msg.output(_.ERR_GET_URWID2)
sys.exit(1)
try:
cddareader = CDDAReader(options.cdrom)
except IOError as err:
msg.error(_.ERR_INVALID_CDDA)
sys.exit(-1)
if len(options.tracks) == 0:
track_numbers = sorted(cddareader.track_offsets.keys())
else:
available_numbers = frozenset(cddareader.track_offsets.keys())
track_numbers = [t for t in options.tracks
if t in available_numbers]
if options.shuffle:
import random
random.shuffle(track_numbers)
if options.interactive:
# a track_number -> MetaData dictionary
# where track_number typically starts from 1
metadata = {m.track_number: m for m in
audiotools.cddareader_metadata_lookup(
cddareader=cddareader,
musicbrainz_server=options.musicbrainz_server,
musicbrainz_port=options.musicbrainz_port,
freedb_server=options.freedb_server,
freedb_port=options.freedb_port,
use_musicbrainz=options.use_musicbrainz,
use_freedb=options.use_freedb)[0]}
cdplay = CDplayGUI(
cddareader=cddareader,
track_numbers=track_numbers,
metadata=metadata,
audio_output=audiotools.player.open_output(options.output))
if len(cddareader.track_offsets) > 0:
cdplay.select_first_track()
loop = urwid.MainLoop(cdplay,
audiotools.ui.style(),
screen=audiotools.ui.Screen(),
unhandled_input=cdplay.handle_text,
pop_ups=True)
loop.set_alarm_at(tm=time.time() + 1,
callback=audiotools.ui.timer,
user_data=cdplay)
try:
loop.run()
msg.ansi_clearscreen()
except (termios.error, IOError):
msg.error(_.ERR_TERMIOS_ERROR)
msg.info(_.ERR_TERMIOS_SUGGESTION)
msg.info(audiotools.ui.xargs_suggestion(sys.argv))
sys.exit(1)
else:
cdplay = CDplayTTY(
cddareader=cddareader,
track_list=track_numbers,
audio_output=audiotools.player.open_output(options.output))
sys.exit(cdplay.run(msg, sys.stdin))
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