except (audiotools.InvalidFilenameFormat,
audiotools.OutputFileIsInput,
audiotools.DuplicateOutputFile), err:
msg.error(unicode(err))
sys.exit(1)
#queue conversion jobs to ProgressQueue
for (audiofile,
output_class,
output_filename,
output_quality,
output_metadata) 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=unicode(output_filename),
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,
def rip_disk(self):
"""Most of this is just copied from cdda2track, a part of python-audio-tools"""
try:
cddareader = CDDAReader(app.config['ripper']['cdrom'], True)
track_offsets = cddareader.track_offsets
track_lengths = cddareader.track_lengths
except (IOError, ValueError, OSError) as err:
self.update_state(state='FAILURE', meta={'error': str(err)})
raise Ignore()
if "offset" in app.config['ripper']:
read_offset = app.config['ripper']['offset']
else:
read_offset = 0
if "speed" in app.config['ripper']:
cddareader.set_speed(app.config['ripper']['speed'])
pre_gap_length = cddareader.track_offsets[1]
if pre_gap_length > 0:
with audiotools.BufferedPCMReader(audiotools.PCMReaderWindow(cddareader,
read_offset,
pre_gap_length,
forward_close=False)) as r:
preserve_pre_gap = set(r.read(pre_gap_length)) != {0}
if preserve_pre_gap:
track_offsets[0] = 0
track_lengths[0] = pre_gap_length
else:
preserve_pre_gap = False
self.update_state(state='PROGRESS', meta={'current': None,
'total': None,
'album': None,
'artist': None,
'metadata': [],
'status': 'Reading metadata'})
metadata_choices = audiotools.cddareader_metadata_lookup(cddareader)
if preserve_pre_gap:
# prepend "track 0" track to start of list for each choice
for choice in metadata_choices:
track_0 = merge_metadatas(choice)
track_0.track_number = 0
choice.insert(0, track_0)
album = metadata_choices[0][0].album_name
artist = metadata_choices[0][0].artist_name
self.update_state(state='PROGRESS', meta={'current': None,
'total': len(track_offsets),
'album': album,
'artist': artist,
'metadata': jsonify_metadata(metadata_choices[0]),
'status': 'Got metadata, preparing to rip'})
tracks_to_rip = list(sorted(track_offsets.keys()))
try:
output_tracks = list(
process_output_options(
metadata_choices=[
[c for i, c in
enumerate(choices, 0 if preserve_pre_gap else 1)
if i in tracks_to_rip]
for choices in metadata_choices],
input_filenames=[
audiotools.Filename("track{:02d}.cdda.wav".format(i))
for i in tracks_to_rip],
output_directory=app.config['ripper']['output_directory'],
format_string=None,
output_class=audiotools.wav.WaveAudio,
quality='',
msg=msg,
use_default=True))
except audiotools.UnsupportedTracknameField as err:
self.update_state(state='FAILURE', meta={'error': str(err)})
raise Ignore()
encoded = []
rip_log = {}
accuraterip_log_v1 = {}
accuraterip_log_v2 = {}
replay_gain = audiotools.ReplayGainCalculator(cddareader.sample_rate)
for (track_number,
index,
(output_class,
output_filename,
output_quality,
output_metadata)) in zip(tracks_to_rip,
range(1, len(tracks_to_rip) + 1),
output_tracks):
self.update_state(state='PROGRESS', meta={'current': track_number,
'total': len(tracks_to_rip),
'album': album,
'artist': artist,
'metadata': jsonify_metadata(metadata_choices[0]),
'status': 'Preparing to rip'})
cddareader.reset_log()
track_offset = (track_offsets[track_number] +
read_offset -
PREVIOUS_TRACK_FRAMES)
track_length = track_lengths[track_number]
# seek to indicated starting offset
if track_offset > 0:
seeked_offset = cddareader.seek(track_offset)
else:
seeked_offset = cddareader.seek(0)
# make leading directories, if necessary
try:
audiotools.make_dirs(str(output_filename))
except OSError as err:
self.update_state(state='FAILURE', meta={'error': str(err)})
raise Ignore()
# setup individual progress bar per track
state = {'current': track_number,
'total': len(tracks_to_rip),
'album': album,
'artist': artist,
'metadata': jsonify_metadata(metadata_choices[0]),
'status': 'Ripping...'}
progress = CeleryProgressDisplay(msg, state, self)
# perform extraction over an AccurateRip window
track_data = audiotools.PCMReaderWindow(
cddareader,
track_offset - seeked_offset,
PREVIOUS_TRACK_FRAMES + track_length + NEXT_TRACK_FRAMES)
# with AccurateRip calculated during extraction
accuraterip = AccurateRipReader(
track_data,
track_length,
track_number == min(track_offsets.keys()),
track_number == max(track_offsets.keys()))
try:
# encode output file itself
track = output_class.from_pcm(
str(output_filename),
replay_gain.to_pcm(
audiotools.PCMReaderProgress(
audiotools.PCMReaderWindow(
accuraterip,
PREVIOUS_TRACK_FRAMES,
track_length,
forward_close=False),
track_length,
progress.update)),
output_quality,
total_pcm_frames=track_length)
encoded.append(track)
# since the inner PCMReaderWindow only outputs part
# of the accuraterip reader, we need to ensure
# anything left over in accuraterip gets processed also
audiotools.transfer_data(accuraterip.read, lambda f: None)
except audiotools.EncodingError as err:
self.update_state(state='FAILURE', meta={'error': str(err)})
raise Ignore()
track.set_metadata(output_metadata)
rip_log[track_number] = cddareader.log()
accuraterip_log_v1[track_number] = accuraterip.checksums_v1()
accuraterip_log_v2[track_number] = accuraterip.checksums_v2()
self.update_state(state='SUCCESS', meta={'total': len(tracks_to_rip),
'album': album,
'artist': artist,
'metadata': jsonify_metadata(metadata_choices[0]),
'status': 'Fully ripped'})
return {'status': 'done', 'tracks': len(tracks_to_rip)}
