/usr/bin/trackverify 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.path
import audiotools
import audiotools.text as _
from operator import or_
MAX_CPUS = audiotools.MAX_JOBS
PY3 = audiotools.PY3
class FailedAudioFile(object):
def __init__(self, class_name, filename, err):
self.NAME = class_name
self.filename = filename
self.err = err
def verify(self, progress=None):
raise self.err
def open_file(filename):
# this is much like audiotools.open
# except that file init errors fail differently
with open(filename, "rb") as f:
audio_class = audiotools.file_type(f)
if ((audio_class is not None) and audio_class.supports_to_pcm()):
class_name = audio_class.NAME
try:
return audio_class(filename)
except audiotools.InvalidFile as err:
return FailedAudioFile(class_name, filename, err)
else:
raise audiotools.UnsupportedFile(filename)
def get_tracks(args, queued_files, accept_list=None):
if accept_list is not None:
accept_list = set(accept_list)
for path in args:
if os.path.isfile(path):
try:
filename = audiotools.Filename(path)
if filename not in queued_files:
queued_files.add(filename)
track = open_file(str(filename))
if (accept_list is None) or (track.NAME in accept_list):
yield track
except (audiotools.UnsupportedFile, IOError, OSError):
continue
elif os.path.isdir(path):
for (d, ds, fs) in os.walk(path):
for track in get_tracks([os.path.join(d, f) for f in fs],
queued_files,
accept_list=accept_list):
yield track
def track_number(track, default):
metadata = track.get_metadata()
if metadata is not None:
if metadata.track_number is not None:
return metadata.track_number
else:
return default
else:
return default
def verify(progress, track):
try:
track.verify(progress)
return (audiotools.Filename(track.filename).__unicode__(),
track.NAME,
None)
except audiotools.InvalidFile as err:
return (audiotools.Filename(track.filename).__unicode__(),
track.NAME,
str(err) if PY3 else unicode(err))
except KeyboardInterrupt:
return (audiotools.Filename(track.filename).__unicode__(),
track.NAME,
_.ERR_CANCELLED)
def display_results(result, is_tty=False):
(filename, track_type, error) = result
if error is None:
return _.LAB_TRACKVERIFY_RESULT % {
"path": filename,
"result": audiotools.output_text(_.LAB_TRACKVERIFY_OK,
fg_color="green").format(is_tty)}
else:
return _.LAB_TRACKVERIFY_RESULT % {
"path": filename,
"result": audiotools.output_text(error,
fg_color="red").format(is_tty)}
def display_results_tty(result):
return display_results(result, is_tty=True)
# returned if the track isn't found in the AccurateRip database
AR_NOT_FOUND = -1
# returned if the track has one or more matches in the AccurateRip database
# but our track doesn't match any of the checksums
AR_MISMATCH = -2
PREVIOUS_TRACK_FRAMES = (5880 // 2)
NEXT_TRACK_FRAMES = (5880 // 2)
def accuraterip_checksum(progress,
track,
previous_track,
next_track,
ar_matches):
from audiotools import (transfer_data,
PCMCat,
PCMReaderHead,
PCMReaderDeHead,
PCMReaderProgress)
from audiotools.decoders import SameSample
from audiotools.accuraterip import Checksum, match_offset
# unify previous track, current track and next track into a single stream
pcmreaders = []
if previous_track is not None:
frames_to_skip = previous_track.total_frames() - PREVIOUS_TRACK_FRAMES
prev_pcmreader = previous_track.to_pcm()
if hasattr(prev_pcmreader, "seek") and callable(prev_pcmreader.seek):
frames_to_skip -= prev_pcmreader.seek(frames_to_skip)
pcmreaders.append(PCMReaderDeHead(prev_pcmreader, frames_to_skip))
else:
pcmreaders.append(
SameSample(sample=0,
total_pcm_frames=PREVIOUS_TRACK_FRAMES,
sample_rate=track.sample_rate(),
channels=track.channels(),
channel_mask=int(track.channel_mask()),
bits_per_sample=track.bits_per_sample()))
pcmreaders.append(track.to_pcm())
if next_track is not None:
pcmreaders.append(PCMReaderHead(next_track.to_pcm(),
NEXT_TRACK_FRAMES))
else:
pcmreaders.append(
SameSample(sample=0,
total_pcm_frames=NEXT_TRACK_FRAMES,
sample_rate=track.sample_rate(),
channels=track.channels(),
channel_mask=int(track.channel_mask()),
bits_per_sample=track.bits_per_sample()))
# feed stream to checksummer
checksummer = Checksum(
total_pcm_frames=track.total_frames(),
sample_rate=track.sample_rate(),
is_first=(previous_track is None),
is_last=(next_track is None),
pcm_frame_range=PREVIOUS_TRACK_FRAMES + 1 + NEXT_TRACK_FRAMES,
accurateripv2_offset=PREVIOUS_TRACK_FRAMES)
try:
pcmreader = PCMReaderProgress(PCMCat(pcmreaders),
PREVIOUS_TRACK_FRAMES +
track.total_frames() +
NEXT_TRACK_FRAMES,
progress)
audiotools.transfer_data(pcmreader.read, checksummer.update)
except (IOError, ValueError) as err:
return {"filename": audiotools.Filename(track.filename).__unicode__(),
"error": str(err),
"v1": {"checksum": None,
"offset": None,
"confidence": None},
"v2": {"checksum": None,
"offset": None,
"confidence": None}}
# determine checksum, confidence and offset from
# the calculated checksums and possible AccurateRip matches
(checksum_v2,
confidence_v2,
offset_v2) = match_offset(ar_matches,
checksums=[checksummer.checksum_v2()],
initial_offset=0)
(checksum_v1,
confidence_v1,
offset_v1) = match_offset(ar_matches=ar_matches,
checksums=checksummer.checksums_v1(),
initial_offset=-PREVIOUS_TRACK_FRAMES)
if len(ar_matches) == 0:
return {"filename": audiotools.Filename(track.filename).__unicode__(),
"error": None,
"v1": {"checksum": checksum_v1,
"offset": offset_v1,
"confidence": AR_NOT_FOUND},
"v2": {"checksum": checksum_v2,
"offset": offset_v2,
"confidence": AR_NOT_FOUND}}
else:
return {"filename": audiotools.Filename(track.filename).__unicode__(),
"error": None,
"v1": {"checksum": checksum_v1,
"offset": offset_v1,
"confidence": (confidence_v1 if
(confidence_v1 is not None) else
AR_MISMATCH)},
"v2": {"checksum": checksum_v2,
"offset": offset_v2,
"confidence": (confidence_v2 if
(confidence_v2 is not None) else
AR_MISMATCH)}}
def accuraterip_image_checksum(progress,
track,
is_first,
is_last,
ar_matches,
displayed_filename,
pcm_frames_offset,
total_pcm_frames):
from audiotools import (transfer_data,
PCMReaderProgress,
PCMReaderWindow)
from audiotools.accuraterip import Checksum, match_offset
reader = track.to_pcm()
pcm_frames_offset -= PREVIOUS_TRACK_FRAMES
# if PCMReader has seek(), use it to reduce the amount of frames to skip
if (hasattr(reader, "seek") and
callable(reader.seek) and
(pcm_frames_offset > 0)):
pcm_frames_offset -= reader.seek(pcm_frames_offset)
# feed stream to checksummers
checksummer = Checksum(
total_pcm_frames=total_pcm_frames,
sample_rate=track.sample_rate(),
is_first=is_first,
is_last=is_last,
pcm_frame_range=PREVIOUS_TRACK_FRAMES + 1 + NEXT_TRACK_FRAMES,
accurateripv2_offset=PREVIOUS_TRACK_FRAMES)
try:
pcmreader = audiotools.PCMReaderProgress(
audiotools.PCMReaderWindow(
reader,
pcm_frames_offset,
PREVIOUS_TRACK_FRAMES + total_pcm_frames + NEXT_TRACK_FRAMES),
PREVIOUS_TRACK_FRAMES + total_pcm_frames + NEXT_TRACK_FRAMES,
progress)
audiotools.transfer_data(pcmreader.read, checksummer.update)
except (IOError, ValueError) as err:
return {"filename": displayed_filename,
"error": str(err),
"v1": {"checksum": None,
"offset": None,
"confidence": None},
"v2": {"checksum": None,
"offset": None,
"confidence": None}}
# determine checksum, confidence and offset from
# the calculated checksums and possible AccurateRip matches
(checksum_v2,
confidence_v2,
offset_v2) = match_offset(ar_matches=ar_matches,
checksums=[checksummer.checksum_v2()],
initial_offset=0)
(checksum_v1,
confidence_v1,
offset_v1) = match_offset(ar_matches=ar_matches,
checksums=checksummer.checksums_v1(),
initial_offset=-PREVIOUS_TRACK_FRAMES)
if len(ar_matches) == 0:
return {"filename": displayed_filename,
"error": None,
"v1": {"checksum": checksum_v1,
"offset": offset_v1,
"confidence": AR_NOT_FOUND},
"v2": {"checksum": checksum_v2,
"offset": offset_v2,
"confidence": AR_NOT_FOUND}}
else:
return {"filename": displayed_filename,
"error": None,
"v1": {"checksum": checksum_v1,
"offset": offset_v1,
"confidence": (confidence_v1 if
(confidence_v1 is not None) else
AR_MISMATCH)},
"v2": {"checksum": checksum_v2,
"offset": offset_v2,
"confidence": (confidence_v2 if
(confidence_v2 is not None) else
AR_MISMATCH)}}
def accuraterip_display_result(result):
if result["error"] is None:
confidence_v1 = result["v1"]["confidence"]
confidence_v2 = result["v2"]["confidence"]
path = result["filename"]
if ((confidence_v1 == AR_NOT_FOUND) and
(confidence_v2 == AR_NOT_FOUND)):
# no matches found for disc
return _.LAB_TRACKVERIFY_RESULT % \
{"path": path, "result": _.LAB_ACCURATERIP_NOT_FOUND}
elif ((confidence_v1 == AR_MISMATCH) and
(confidence_v2 == AR_MISMATCH)):
# neither checksum matches
return _.LAB_TRACKVERIFY_RESULT % \
{"path": path, "result": _.LAB_ACCURATERIP_MISMATCH}
elif confidence_v2 == AR_MISMATCH:
# only AccurateRip V1 matches
return _.LAB_TRACKVERIFY_RESULT % \
{"path": path,
"result": u"%s (%s)" % (
_.LAB_ACCURATERIP_FOUND,
_.LAB_ACCURATERIP_CONFIDENCE % (confidence_v1))}
else:
# AccurateRip V2 has a match, so display that by default
return _.LAB_TRACKVERIFY_RESULT % \
{"path": path,
"result": u"%s (%s)" % (
_.LAB_ACCURATERIP_FOUND,
_.LAB_ACCURATERIP_CONFIDENCE % (confidence_v2))}
else:
# FIXME - display actual error
return u"read error"
if (__name__ == '__main__'):
import argparse
parser = argparse.ArgumentParser(description=_.DESCRIPTION_TRACKVERIFY)
parser.add_argument("--version",
action="version",
version="Python Audio Tools %s" % (audiotools.VERSION))
parser.add_argument("-V", "--verbose",
dest="verbosity",
choices=audiotools.VERBOSITY_LEVELS,
default=audiotools.DEFAULT_VERBOSITY,
help=_.OPT_VERBOSE)
parser.add_argument("-t", "--type",
action="append",
dest="accept_list",
metavar="type",
choices=audiotools.TYPE_MAP.keys(),
help=_.OPT_TYPE_TRACKVERIFY)
parser.add_argument("-S", "--no-summary",
action="store_true",
dest="no_summary",
help=_.OPT_NO_SUMMARY)
parser.add_argument("-R", "--accuraterip",
action="store_true",
dest="accuraterip",
default=False,
help=_.OPT_ACCURATERIP)
parser.add_argument("--cue",
dest="cuesheet",
metavar="FILENAME",
help=_.OPT_CUESHEET_TRACKVERIFY)
parser.add_argument("-j", "--joint",
type=int,
default=MAX_CPUS,
dest="max_processes",
help=_.OPT_JOINT)
parser.add_argument("filenames",
metavar="PATH",
nargs="+",
help=_.OPT_INPUT_FILENAME_OR_DIR)
options = parser.parse_args()
msg = audiotools.Messenger(options.verbosity == "quiet")
if not options.accuraterip:
queued_files = set() # a set of Filename objects already encountered
queue = audiotools.ExecProgressQueue(msg)
for track in get_tracks(options.filenames,
queued_files,
options.accept_list):
queue.execute(
function=verify,
progress_text=
audiotools.Filename(track.filename).__unicode__(),
completion_output=(display_results_tty
if msg.output_isatty() else
display_results),
track=track)
msg.ansi_clearline()
try:
results = queue.run(options.max_processes)
except KeyboardInterrupt:
msg.error(_.ERR_CANCELLED)
sys.exit(1)
formats = sorted(list({r[1] for r in results}))
success_total = len([r for r in results if r[2] is None])
failure_total = len(results) - success_total
if (len(formats) > 0) and (not options.no_summary):
msg.output(_.LAB_TRACKVERIFY_RESULTS)
msg.output(u"")
table = audiotools.output_table()
row = table.row()
row.add_column(_.LAB_TRACKVERIFY_RESULT_FORMAT, "right")
row.add_column(u" ")
row.add_column(_.LAB_TRACKVERIFY_RESULT_SUCCESS, "right")
row.add_column(u" ")
row.add_column(_.LAB_TRACKVERIFY_RESULT_FAILURE, "right")
row.add_column(u" ")
row.add_column(_.LAB_TRACKVERIFY_RESULT_TOTAL, "right")
table.divider_row([_.DIV, u" ", _.DIV, u" ", _.DIV, u" ", _.DIV])
for format in formats:
success = len([r for r in results if ((r[1] == format) and
(r[2] is None))])
failure = len([r for r in results if ((r[1] == format) and
(r[2] is not None))])
row = table.row()
row.add_column(u"%s" % (format), "right")
row.add_column(u" ")
row.add_column(u"%d" % (success), "right")
row.add_column(u" ")
row.add_column(u"%d" % (failure), "right")
row.add_column(u" ")
row.add_column(u"%d" % (success + failure), "right")
table.divider_row([_.DIV, u" ", _.DIV, u" ", _.DIV, u" ", _.DIV])
row = table.row()
row.add_column(_.LAB_TRACKVERIFY_SUMMARY, "right")
row.add_column(u" ")
row.add_column(u"%d" % (success_total), "right")
row.add_column(u" ")
row.add_column(u"%d" % (failure_total), "right")
row.add_column(u" ")
row.add_column(u"%d" % (success_total + failure_total), "right")
for row in table.format(msg.output_isatty()):
msg.output(row)
if failure_total > 0:
sys.exit(1)
else:
queued_files = set() # a set of Filename objects already encountered
queue = audiotools.ExecProgressQueue(msg)
for tracks in audiotools.group_tracks(
get_tracks(options.filenames,
queued_files,
options.accept_list)):
# perform AccurateRip lookup on album's worth of tracks
# if tracks are CD formatted
if ((({t.channels() for t in tracks} == {2}) and
({t.sample_rate() for t in tracks} == {44100}) and
({t.bits_per_sample() for t in tracks} == {16}))):
if ((len(tracks) == 1) and
((options.cuesheet is not None) or
(tracks[0].get_cuesheet() is not None))):
filename = audiotools.Filename(tracks[0].filename)
total_frames = tracks[0].total_frames()
sample_rate = tracks[0].sample_rate()
# cuesheet from command-line takes precedence
# over cuesheet embedded in file
if options.cuesheet is not None:
try:
sheet = audiotools.read_sheet(options.cuesheet)
except audiotools.SheetException as err:
msg.error(err)
sys.exit(1)
else:
sheet = tracks[0].get_cuesheet()
# process tracks in CD image individually
ar_results = audiotools.accuraterip_sheet_lookup(
sheet, total_frames, sample_rate)
for track_num in sheet.track_numbers():
filename = u"%2.2d - %s" % \
(track_num,
audiotools.Filename(
tracks[0].filename).basename().__unicode__())
offset = int(sheet.track_offset(track_num) *
sample_rate)
if sheet.track_length(track_num) is not None:
length = int(sheet.track_length(track_num) *
sample_rate)
elif track_num > 1:
length = (tracks[0].total_frames() -
int(sheet.track_offset(track_num) *
sample_rate))
else:
length = (tracks[0].total_frames() -
int(sheet.pre_gap() * sample_rate))
queue.execute(
function=accuraterip_image_checksum,
progress_text=filename,
completion_output=accuraterip_display_result,
track=tracks[0],
is_first=(track_num == 1),
is_last=(track_num == len(sheet)),
ar_matches=ar_results.get(track_num, []),
displayed_filename=filename,
pcm_frames_offset=offset,
total_pcm_frames=length)
else:
# process each track as if it were part of a CD
tracks = audiotools.sorted_tracks(tracks)
if options.cuesheet is not None:
try:
sheet = audiotools.read_sheet(options.cuesheet)
except audiotools.SheetException as err:
msg.error(err)
sys.exit(1)
ar_results = audiotools.accuraterip_sheet_lookup(
sheet,
int(sheet.pre_gap() * tracks[0].sample_rate()) +
sum([t.total_frames() for t in tracks]),
sample_rate=tracks[0].sample_rate())
else:
ar_results = audiotools.accuraterip_lookup(tracks)
for (i,
previous_track,
track,
next_track) in zip(range(1, len(tracks) + 1),
[None] + tracks,
tracks,
tracks[1:] + [None]):
filename = audiotools.Filename(track.filename)
queue.execute(
function=accuraterip_checksum,
progress_text=filename.__unicode__(),
completion_output=accuraterip_display_result,
track=track,
previous_track=previous_track,
next_track=next_track,
ar_matches=ar_results.get(
track_number(track, i), []))
else:
for track in tracks:
msg.error(u"\"%(path)s\" %(result)s" %
{"path": audiotools.Filename(track.filename),
"result": _.ERR_TRACKVERIFY})
msg.ansi_clearline()
results = queue.run(options.max_processes)
table = audiotools.output_table()
row = table.row()
row.add_column(u"")
row.add_column(u"")
row.add_column(_.LAB_TRACKVERIFY_AR_VERSION1, "center", colspan=5)
row.add_column(u"")
row.add_column(_.LAB_TRACKVERIFY_AR_VERSION2, "center", colspan=5)
row = table.row()
row.add_column(_.LAB_TRACKVERIFY_AR_TRACK)
row.add_column(u" ")
row.add_column(_.LAB_TRACKVERIFY_AR_CONFIDENCE)
row.add_column(u" ")
row.add_column(_.LAB_TRACKVERIFY_AR_OFFSET)
row.add_column(u" ")
row.add_column(_.LAB_TRACKVERIFY_AR_CHECKSUM)
row.add_column(u" ")
row.add_column(_.LAB_TRACKVERIFY_AR_CONFIDENCE)
row.add_column(u" ")
row.add_column(_.LAB_TRACKVERIFY_AR_OFFSET)
row.add_column(u" ")
row.add_column(_.LAB_TRACKVERIFY_AR_CHECKSUM)
if sys.stdout.isatty():
filename_max = (msg.terminal_size(sys.stdout)[1] -
sum(c.minimum_width() for c in
table.__rows__[1].__columns__[1:]))
else:
# effectively no maximum
filename_max = 2 ** 32
table.divider_row([_.DIV] + [u" ", _.DIV] * 6)
for result in results:
filename = result["filename"]
err = result["error"]
row = table.row()
# truncate long filenames if necessary
filename = audiotools.output_text(filename)
if len(filename) <= filename_max:
row.add_column(filename)
else:
head = filename.head(filename_max - 1)
row.add_column(
u"%s%s" % (head, u"\u2026" * (filename_max - len(head))))
if err is None:
for version in ["v1", "v2"]:
checksum = result[version]["checksum"]
offset = result[version]["offset"]
confidence = result[version]["confidence"]
row.add_column(u"")
if confidence >= 0:
row.add_column(u"%d" % (confidence), "right")
else:
row.add_column(u"", "right")
row.add_column(u"")
row.add_column(u"%d" % (offset), "right")
row.add_column(u"")
row.add_column(u"%8.8X" % (checksum), "right")
else:
row.add_column(_.ERR_READ_ERROR, "right", colspan=6)
for row in table.format(msg.output_isatty()):
msg.output(row)
if len([r for r in results if r["error"] is not None]) > 0:
sys.exit(1)
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