/usr/bin/track2track is in audiotools 3.1.1-1build1.
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 os
import os.path
import select
from operator import concat
import audiotools
import audiotools.ui
import audiotools.text as _
import termios
MAX_CPUS = audiotools.MAX_JOBS
def convert(progress,
source_audiofile,
destination_filename,
destination_class,
compression,
metadata,
replay_gain,
sample_rate,
channels,
bits_per_sample):
try:
if (((sample_rate is None) and
(channels is None) and
(bits_per_sample is None))):
destination_audiofile = source_audiofile.convert(
destination_filename,
destination_class,
compression,
progress)
else:
pcmreader = source_audiofile.to_pcm()
destination_audiofile = destination_class.from_pcm(
destination_filename,
audiotools.PCMConverter(
audiotools.PCMReaderProgress(
pcmreader,
source_audiofile.total_frames(),
progress),
sample_rate if
(sample_rate is not None) else
pcmreader.sample_rate,
channels if
(channels is not None) else
pcmreader.channels,
0 if
(channels is not None) else
pcmreader.channel_mask,
bits_per_sample if (bits_per_sample is not None) else
pcmreader.bits_per_sample),
compression,
source_audiofile.total_frames() if
(source_audiofile.lossless() and (sample_rate is None))
else None)
if metadata is not None:
destination_audiofile.set_metadata(metadata)
if replay_gain is not None:
destination_audiofile.set_replay_gain(replay_gain)
existing_cuesheet = source_audiofile.get_cuesheet()
if existing_cuesheet is not None:
destination_audiofile.set_cuesheet(existing_cuesheet)
except KeyboardInterrupt:
# delete partially-encoded file
try:
os.unlink(destination_filename)
except OSError:
pass
return destination_filename
def __add_replay_gain__(tracks, progress=None):
"""a wrapper around add_replay_gain that catches KeyboardInterrupt"""
try:
audiotools.add_replay_gain(tracks=tracks, progress=progress)
except KeyboardInterrupt:
pass
if audiotools.ui.AVAILABLE:
urwid = audiotools.ui.urwid
class MultiOutputFiller(audiotools.ui.OutputFiller):
def __init__(self,
track_labels,
metadata_choices,
input_filenames,
output_directory,
format_string,
output_class,
quality,
completion_label=u"Apply"):
"""track_labels[a][t]
is a unicode string per album "a", per track "t"
metadata_choices[a][c][t]
is a MetaData object per album "a", per choice "c", per track "t"
must have same album count as track_labels
and each album's choice must have the same number of tracks
(but may have different number of choices)
input_filenames[a][t]
is a Filename object per album "a", per track "t"
output_directory is a string of the default output dir
format_string is a UTF-8 encoded format string
output_class is the default AudioFile-compatible class
quality is a string of the default output quality to use
"""
from functools import reduce
self.__cancelled__ = True
# ensure there's at least one album
assert(len(track_labels) > 0)
# ensure album count is consistent
assert(len(track_labels) ==
len(metadata_choices) ==
len(input_filenames))
# ensure track count is consistent
for (labels, filenames) in zip(track_labels, input_filenames):
assert(len(labels) == len(filenames))
# ensure there's at least one track
assert(len(track_labels[0]) > 0)
# ensure there's at least one set of choices per album
# and all have the same number of tracks
for (a, choice_labels) in zip(metadata_choices, track_labels):
assert(len(a) > 0)
for c in a:
assert(len(c) == len(choice_labels))
# ensure all input filenames are Filename objects
for a in input_filenames:
for f in a:
assert(isinstance(f, audiotools.Filename))
# setup status bars for output messages
self.metadatas_status = [urwid.Text(u"") for m in track_labels]
self.options_status = urwid.Text(u"")
# setup widgets for populated metadata fields
self.metadatas = [
audiotools.ui.MetaDataFiller(labels, choices, status)
for (labels, choices, status) in zip(track_labels,
metadata_choices,
self.metadatas_status)]
# setup a widget for populating output parameters
self.options = audiotools.ui.OutputOptions(
output_dir=output_directory,
format_string=format_string,
audio_class=output_class,
quality=quality,
input_filenames=reduce(concat, input_filenames),
metadatas=[None for f in reduce(concat, input_filenames)])
# finish initialization
from audiotools.text import LAB_CANCEL_BUTTON
self.wizard = audiotools.ui.Wizard(
self.metadatas + [self.options],
urwid.Button(LAB_CANCEL_BUTTON, on_press=self.exit),
urwid.Button(completion_label, on_press=self.complete),
self.page_changed)
self.__current_page__ = self.metadatas[0]
urwid.Frame.__init__(self,
body=self.wizard,
footer=self.metadatas_status[0])
def page_changed(self, new_page):
self.__current_page__ = new_page
if hasattr(new_page, "status"):
# one of the metadata pages is selected
self.set_footer(new_page.status)
else:
from functools import reduce
# the final options page is selected
self.options.set_metadatas(
reduce(concat, [list(m.populated_metadata())
for m in self.metadatas]))
self.set_footer(self.options_status)
def handle_text(self, i):
if ((i == "f1") and hasattr(self.__current_page__,
"select_previous_item")):
self.__current_page__.select_previous_item()
elif ((i == "f2") and (hasattr(self.__current_page__,
"select_next_item"))):
self.__current_page__.select_next_item()
def output_albums(self):
"""for each album
yields (output_class,
output_filename,
output_quality,
output_metadata) tuple for each input audio file
as a nested iterator
output_metadata is a newly created MetaData object"""
(audiofile_class,
quality,
output_filenames) = self.options.selected_options()
for widget in self.metadatas:
album = []
for metadata in widget.populated_metadata():
album.append((audiofile_class,
output_filenames.pop(0),
quality,
metadata))
yield album
if (__name__ == '__main__'):
import argparse
parser = argparse.ArgumentParser(description=_.DESCRIPTION_TRACK2TRACK)
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",
dest="verbosity",
choices=audiotools.VERBOSITY_LEVELS,
default=audiotools.DEFAULT_VERBOSITY,
help=_.OPT_VERBOSE)
conversion = parser.add_argument_group(_.OPT_CAT_CONVERSION)
conversion.add_argument(
"-t", "--type",
dest="type",
choices=sorted(list(t.NAME for t in audiotools.AVAILABLE_TYPES
if t.supports_from_pcm()) + ["help"]),
help=_.OPT_TYPE)
conversion.add_argument("-q", "--quality",
dest="quality",
help=_.OPT_QUALITY)
conversion.add_argument("-d", "--dir",
dest="dir",
default=".",
help=_.OPT_DIR)
conversion.add_argument("--format",
default=None,
dest="format",
help=_.OPT_FORMAT)
conversion.add_argument("-o", "--output",
dest="output",
help=_.OPT_OUTPUT_TRACK2TRACK)
conversion.add_argument("-j", "--joint",
type=int,
default=MAX_CPUS,
dest="max_processes",
help=_.OPT_JOINT)
format = parser.add_argument_group(_.OPT_CAT_OUTPUT_FORMAT)
format.add_argument("--sample-rate",
type=int,
dest="sample_rate",
metavar="RATE",
help=_.OPT_SAMPLE_RATE)
format.add_argument("--channels",
type=int,
dest="channels",
help=_.OPT_CHANNELS)
format.add_argument("--bits-per-sample",
type=int,
dest="bits_per_sample",
metavar="BITS",
help=_.OPT_BPS)
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)
lookup.add_argument("-D", "--default",
dest="use_default",
action="store_true",
default=False,
help=_.OPT_DEFAULT)
metadata = parser.add_argument_group(_.OPT_CAT_METADATA)
metadata.add_argument("--replay-gain",
action="store_true",
default=None,
dest="add_replay_gain",
help=_.OPT_REPLAY_GAIN)
metadata.add_argument("--no-replay-gain",
action="store_false",
default=None,
dest="add_replay_gain",
help=_.OPT_NO_REPLAY_GAIN)
parser.add_argument("filenames",
metavar="FILENAME",
nargs="+",
help=_.OPT_INPUT_FILENAME)
options = parser.parse_args()
msg = audiotools.Messenger(options.verbosity == "quiet")
# ensure interactive mode is available, if selected
if options.interactive and (not audiotools.ui.AVAILABLE):
audiotools.ui.not_available_message(msg)
sys.exit(1)
# if one specifies incompatible output options,
# complain about it right away
if options.output is not None:
if options.dir != ".":
msg.error(_.ERR_TRACK2TRACK_O_AND_D)
msg.info(_.ERR_TRACK2TRACK_O_AND_D_SUGGESTION)
sys.exit(1)
if options.format is not None:
msg.warning(_.ERR_TRACK2TRACK_O_AND_FORMAT)
# get the AudioFile class we are converted to
if options.type == 'help':
audiotools.ui.show_available_formats(msg)
sys.exit(0)
elif options.output is None:
if options.type is not None:
AudioType = audiotools.TYPE_MAP[options.type]
else:
AudioType = audiotools.TYPE_MAP[audiotools.DEFAULT_TYPE]
else:
if options.type is not None:
AudioType = audiotools.TYPE_MAP[options.type]
else:
try:
AudioType = audiotools.filename_to_type(options.output)
except audiotools.UnknownAudioType as exp:
exp.error_msg(msg)
sys.exit(1)
if not AudioType.supports_from_pcm():
msg.error(_.ERR_UNSUPPORTED_FROM_PCM % {"type": AudioType.NAME})
sys.exit(1)
# whether to add ReplayGain to newly converted files
if AudioType.supports_replay_gain():
add_replay_gain = ((options.add_replay_gain if
(options.add_replay_gain is not None) else
audiotools.ADD_REPLAYGAIN))
else:
add_replay_gain = False
# ensure the selected compression is compatible with that class
if options.quality == 'help':
audiotools.ui.show_available_qualities(msg, AudioType)
sys.exit(0)
elif options.quality is None:
options.quality = audiotools.__default_quality__(AudioType.NAME)
elif options.quality not in AudioType.COMPRESSION_MODES:
msg.error(_.ERR_UNSUPPORTED_COMPRESSION_MODE %
{"quality": options.quality,
"type": AudioType.NAME})
sys.exit(1)
# grab the list of AudioFile objects we are converting from
audiofiles = []
input_filenames = set()
for filename in map(audiotools.Filename, options.filenames):
if filename not in input_filenames:
input_filenames.add(filename)
else:
msg.error(_.ERR_DUPLICATE_FILE % (filename,))
sys.exit(1)
try:
audiofile = audiotools.open(str(filename))
if audiofile.__class__.supports_to_pcm():
audiofiles.append(audiofile)
else:
msg.warning(_.ERR_UNSUPPORTED_TO_PCM %
{"filename": filename, "type": audiofile.NAME})
except audiotools.UnsupportedFile:
msg.warning(_.ERR_UNSUPPORTED_FILE % (filename,))
except audiotools.InvalidFile as err:
msg.warning(str(err))
except IOError:
msg.warning(_.ERR_OPEN_IOERROR % (filename,))
if len(audiofiles) < 1:
msg.error(_.ERR_FILES_REQUIRED)
sys.exit(1)
if (options.sample_rate is not None) and (options.sample_rate < 1):
msg.error(_.ERR_INVALID_SAMPLE_RATE)
sys.exit(1)
if (options.channels is not None) and (options.channels < 1):
msg.error(_.ERR_INVALID_CHANNEL_COUNT)
sys.exit(1)
if (((options.bits_per_sample is not None) and
(options.bits_per_sample < 1))):
msg.error(_.ERR_INVALID_BITS_PER_SAMPLE)
sys.exit(1)
if options.max_processes < 1:
msg.error(_.ERR_INVALID_JOINT)
sys.exit(1)
if (options.output is not None) and (len(audiofiles) != 1):
msg.error(_.ERR_TRACK2TRACK_O_AND_MULTIPLE)
sys.exit(1)
if options.output is None:
# the default encoding method, without an output file
queue = audiotools.ExecProgressQueue(msg)
# split tracks by album
albums_iter = audiotools.group_tracks(audiofiles)
# input_tracks[a][t] is an AudioFile object
# per album "a", per track "t"
input_tracks = []
# input_metadatas[a][t] is a MetaData object (or None)
# per album "a", per track "t"
input_metadatas = []
# track_labels[a][t] is a unicode string per album "a", per track "t"
track_labels = []
# metadata_choices[a][c][t] is a MetaData object
# per album "a", per choice "c", per track "t"
metadata_choices = []
# input_filenames[a][t] is a Filename object
# per album "a", per track "t"
input_filenames = []
for album_tracks in albums_iter:
input_tracks.append(album_tracks)
track_metadatas = [f.get_metadata() for f in album_tracks]
input_metadatas.append(track_metadatas)
filenames = [audiotools.Filename(f.filename)
for f in album_tracks]
track_labels.append([f.basename().__unicode__()
for f in filenames])
input_filenames.append(filenames)
if not options.metadata_lookup:
# pull metadata from existing files, if any
metadata_choices.append([[f.get_metadata() for f in
album_tracks]])
else:
# perform CD lookup for existing files
try:
metadata_choices.append(audiotools.track_metadata_lookup(
audiofiles=album_tracks,
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))
except KeyboardInterrupt:
msg.ansi_clearline()
msg.error(_.ERR_CANCELLED)
sys.exit(1)
# and prepend metadata from existing files as an option, if any
if track_metadatas != [None] * len(track_metadatas):
metadata_choices[-1].insert(
0,
[(m if m is not None else audiotools.MetaData())
for m in track_metadatas])
# avoid performing too many lookups in a row too quickly
from time import sleep
sleep(1)
# a list of (audiofile,
# output_class,
# output_filename,
# output_quality,
# output_metadata,
# output_replay_gain) tuples to be executed
conversion_jobs = []
# a list of [audiofile, audiofile, ...] lists
# each containing an album of tracks to add ReplayGain to
# once conversion is finished
replaygain_jobs = []
if options.interactive:
# pick options using interactive widget
output_widget = MultiOutputFiller(
track_labels=track_labels,
metadata_choices=metadata_choices,
input_filenames=input_filenames,
output_directory=options.dir,
format_string=(options.format if
(options.format is not None) else
audiotools.FILENAME_FORMAT),
output_class=AudioType,
quality=options.quality,
completion_label=(_.LAB_TRACK2TRACK_APPLY if
(sum(map(len, input_tracks)) != 1)
else _.LAB_TRACK2TRACK_APPLY_1))
loop = audiotools.ui.urwid.MainLoop(
output_widget,
audiotools.ui.style(),
screen=audiotools.ui.Screen(),
unhandled_input=output_widget.handle_text,
pop_ups=True)
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)
if output_widget.cancelled():
sys.exit(0)
for (album_tracks,
album_metadatas,
album_output) in zip(input_tracks,
input_metadatas,
output_widget.output_albums()):
# use existing ReplayGain values if we're to add it
# and *all* input tracks have it
if add_replay_gain:
album_track_gains = [t.get_replay_gain() for t in
album_tracks]
if None in album_track_gains:
album_track_gains = [None for t in album_tracks]
replaygain_jobs.append(
[str(o[1]) for o in album_output])
else:
album_track_gains = [None for t in album_tracks]
for (input_track,
current_metadata,
(output_class,
output_filename,
output_quality,
output_metadata),
output_replay_gain) in zip(album_tracks,
album_metadatas,
album_output,
album_track_gains):
# merge current track metadata (if any)
# with metadata returned from widget
if current_metadata is not None:
for attr in audiotools.MetaData.FIELDS:
original_value = getattr(current_metadata, attr)
updated_value = getattr(output_metadata, attr)
if original_value != updated_value:
setattr(current_metadata, attr, updated_value)
# and queue up conversion job to be executed
conversion_jobs.append((input_track,
output_class,
output_filename,
output_quality,
current_metadata,
output_replay_gain))
else:
# or simply queue up conversion job to be executed
# using only new metadata
conversion_jobs.append((input_track,
output_class,
output_filename,
output_quality,
output_metadata,
output_replay_gain))
else:
# pick options without using GUI
for (album_tracks,
album_metadata_choices,
album_filenames) in zip(input_tracks,
metadata_choices,
input_filenames):
try:
output_tracks = list(audiotools.ui.process_output_options(
metadata_choices=album_metadata_choices,
input_filenames=album_filenames,
output_directory=options.dir,
format_string=options.format,
output_class=AudioType,
quality=options.quality,
msg=msg,
use_default=options.use_default))
# use existing ReplayGain values if we're to add it
# and *all* input tracks have it
if add_replay_gain:
album_track_gains = [t.get_replay_gain() for t in
album_tracks]
if None in album_track_gains:
album_track_gains = [None for t in album_tracks]
replaygain_jobs.append(
[str(o[1]) for o in output_tracks])
else:
album_track_gains = [None for t in album_tracks]
# queue jobs to be executed
for (album_track,
(output_class,
output_filename,
output_quality,
output_metadata),
output_replay_gain) in zip(album_tracks,
output_tracks,
album_track_gains):
conversion_jobs.append((album_track,
output_class,
output_filename,
output_quality,
output_metadata,
output_replay_gain))
except audiotools.UnsupportedTracknameField as err:
err.error_msg(msg)
sys.exit(1)
except (audiotools.InvalidFilenameFormat,
audiotools.OutputFileIsInput,
audiotools.DuplicateOutputFile) as err:
msg.error(err)
sys.exit(1)
# re-check that the same output file doesn't occur more than once
# (although process_output_options also performs that check,
# it's possible processing multiple albums at once
# may result in the same output file occurring across the whole
# job, but not in any individual album)
output_filenames = set()
for job in conversion_jobs:
output_filename = job[2]
if output_filename not in output_filenames:
output_filenames.add(output_filename)
else:
msg.error(_.ERR_DUPLICATE_OUTPUT_FILE % (output_filename,))
sys.exit(1)
# queue conversion jobs to ProgressQueue
for (audiofile,
output_class,
output_filename,
output_quality,
output_metadata,
output_replay_gain) in conversion_jobs:
# try to create subdirectories in advance
# so to bail out early if there's an error creating one
try:
audiotools.make_dirs(str(output_filename))
except OSError:
msg.error(_.ERR_ENCODING_ERROR % (output_filename,))
sys.exit(1)
queue.execute(
function=convert,
progress_text=output_filename.__unicode__(),
completion_output=(_.LAB_ENCODE % {
"source": audiotools.Filename(audiofile.filename),
"destination": output_filename}),
source_audiofile=audiofile,
destination_filename=str(output_filename),
destination_class=output_class,
compression=output_quality,
metadata=output_metadata,
replay_gain=output_replay_gain,
sample_rate=options.sample_rate,
channels=options.channels,
bits_per_sample=options.bits_per_sample)
# perform actual track conversion
try:
output_files = map(audiotools.open,
queue.run(options.max_processes))
except audiotools.EncodingError as err:
msg.error(err)
sys.exit(1)
except KeyboardInterrupt:
msg.error(_.ERR_CANCELLED)
sys.exit(1)
# add ReplayGain to converted files, if necessary
# separate encoded files by album_name and album_number
for album in [[audiotools.open(f) for f in fs]
for fs in replaygain_jobs]:
# add ReplayGain to groups of files
# belonging to the same album
album_number = {(m.album_number if m is not None else None)
for m in
[f.get_metadata() for f in album]}.pop()
if album_number is None:
progress_text = _.RG_ADDING_REPLAYGAIN
completion_output = _.RG_REPLAYGAIN_ADDED
else:
progress_text = _.RG_ADDING_REPLAYGAIN_TO_ALBUM % \
(album_number)
completion_output = _.RG_REPLAYGAIN_ADDED_TO_ALBUM % \
(album_number)
queue.execute(function=__add_replay_gain__,
progress_text=progress_text,
completion_output=completion_output,
tracks=album)
try:
queue.run(options.max_processes)
except ValueError as err:
msg.error(err)
sys.exit(1)
except KeyboardInterrupt:
msg.error(_.ERR_CANCELLED)
sys.exit(1)
else:
# encoding only a single file
audiofile = audiofiles[0]
input_filename = audiotools.Filename(audiofile.filename)
if options.interactive:
track_metadata = audiofile.get_metadata()
output_widget = audiotools.ui.SingleOutputFiller(
track_label=input_filename.__unicode__(),
metadata_choices=[track_metadata if track_metadata is not None
else audiotools.MetaData()],
input_filenames=[input_filename],
output_file=options.output,
output_class=AudioType,
quality=options.quality,
completion_label=_.LAB_TRACK2TRACK_APPLY_1)
loop = audiotools.ui.urwid.MainLoop(
output_widget,
audiotools.ui.style(),
screen=audiotools.ui.Screen(),
unhandled_input=output_widget.handle_text,
pop_ups=True)
loop.run()
msg.ansi_clearscreen()
if not output_widget.cancelled():
(destination_class,
output_filename,
compression,
track_metadata) = output_widget.output_track()
else:
sys.exit(0)
else:
output_filename = audiotools.Filename(options.output)
destination_class = AudioType
compression = options.quality
track_metadata = audiofile.get_metadata()
if input_filename == output_filename:
msg.error(_.ERR_OUTPUT_IS_INPUT %
(output_filename,))
sys.exit(1)
progress = audiotools.SingleProgressDisplay(
messenger=msg,
progress_text=output_filename.__unicode__())
try:
convert(progress=progress.update,
source_audiofile=audiofile,
destination_filename=str(output_filename),
destination_class=destination_class,
compression=compression,
metadata=track_metadata,
replay_gain=(audiofile.get_replay_gain() if
add_replay_gain else None),
sample_rate=options.sample_rate,
channels=options.channels,
bits_per_sample=options.bits_per_sample)
progress.clear_rows()
msg.output(_.LAB_ENCODE % {"source": input_filename,
"destination": output_filename})
except audiotools.EncodingError as err:
progress.clear_rows()
msg.error(err)
sys.exit(1)
except KeyboardInterrupt:
progress.clear_rows()
try:
os.unlink(str(output_filename))
except OSError:
pass
msg.error(_.ERR_CANCELLED)
sys.exit(1)
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