/usr/share/pyshared/kaa/metadata/disc/audio.py is in python-kaa-metadata 0.7.7+svn4596-4.
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# -----------------------------------------------------------------------------
# audio.py - support for audio cds
# -----------------------------------------------------------------------------
# $Id: audio.py 3621 2008-10-12 20:26:54Z dmeyer $
#
# -----------------------------------------------------------------------------
# kaa-Metadata - Media Metadata for Python
# Copyright (C) 2003-2006 Thomas Schueppel, Dirk Meyer
#
# First Edition: Dirk Meyer <dischi@freevo.org>
# Maintainer: Dirk Meyer <dischi@freevo.org>
#
# Please see the file AUTHORS for a complete list of authors.
#
# 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 MER-
# CHANTABILITY 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.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# -----------------------------------------------------------------------------
__all__ = ['Parser']
# python imports
import logging
# kaa.metadata imports
import kaa.metadata
from kaa.metadata.audio.core import Music as AudioTrack
# kaa.metadata.disc imports
import core
import cdrom
import CDDB
# get logging object
log = logging.getLogger('metadata')
class AudioDisc(core.Disc):
"""
Audio CD support. It provides a list of tracks and if on Internet
connection is available it will use CDDB for the metadata.
"""
def __init__(self,device):
core.Disc.__init__(self)
self.offset = 0
# check disc
if self.is_disc(device) != 1:
raise core.ParseError()
self.query(device)
self.mime = 'audio/cd'
self.type = 'CD'
self.subtype = 'audio'
def query(self, device):
cdromfd = cdrom.audiocd_open(device)
disc_id = cdrom.audiocd_id(cdromfd)
if kaa.metadata.USE_NETWORK:
try:
(query_stat, query_info) = CDDB.query(disc_id)
except Exception, e:
# Oops no connection
query_stat = 404
else:
query_stat = 404
if query_stat == 210 or query_stat == 211:
# set this to success
query_stat = 200
for i in query_info:
if i['title'] != i['title'].upper():
query_info = i
break
else:
query_info = query_info[0]
elif query_stat != 200:
log.error("failure getting disc info, status %i" % query_stat)
if query_stat == 200:
qi = query_info['title'].split('/')
self.artist = qi[0].strip()
self.title = qi[1].strip()
for type in ('title', 'artist'):
if getattr(self, type) and \
getattr(self, type)[0] in ('"', '\'') \
and getattr(self, type)[-1] in ('"', '\''):
setattr(self, type, getattr(self, type)[1:-1])
(read_stat, read_info) = CDDB.read(query_info['category'],
query_info['disc_id'])
# id = disc_id + number of tracks
#self.id = '%s_%s' % (query_info['disc_id'], disc_id[1])
if read_stat == 210:
self.year = read_info['DYEAR']
for i in range(0, disc_id[1]):
mi = AudioTrack()
mi.title = read_info['TTITLE' + `i`]
mi.album = self.title
mi.artist = self.artist
mi.genre = query_info['category']
mi.year = self.year
mi.codec = 'PCM'
mi.samplerate = 44100
mi.trackno = i+1
mi.trackof = disc_id[1]
self.tracks.append(mi)
for type in ('title', 'album', 'artist', 'genre'):
if getattr(mi, type) and \
getattr(mi, type)[0] in ('"', '\'') \
and getattr(mi, type)[-1] in ('"', '\''):
setattr(mi, type, getattr(mi, type)[1:-1])
else:
log.error("failure getting track info, status: %i" % read_stat)
# set query_stat to somthing != 200
query_stat = 400
if query_stat != 200:
log.error("failure getting disc info, status %i" % query_stat)
self.no_caching = 1
for i in range(0, disc_id[1]):
mi = AudioTrack()
mi.title = 'Track %s' % (i+1)
mi.codec = 'PCM'
mi.samplerate = 44100
mi.trackno = i+1
mi.trackof = disc_id[1]
self.tracks.append(mi)
# read the tracks to generate the title list
(first, last) = cdrom.audiocd_toc_header(cdromfd)
lmin = 0
lsec = 0
num = 0
for i in range(first, last + 2):
if i == last + 1:
min, sec, frames = cdrom.audiocd_leadout(cdromfd)
else:
min, sec, frames = cdrom.audiocd_toc_entry(cdromfd, i)
if num:
self.tracks[num-1].length = (min-lmin)*60 + (sec-lsec)
num += 1
lmin, lsec = min, sec
# correct bad titles for the tracks, containing also the artist
for t in self.tracks:
if not self.artist or not t.title.startswith(self.artist):
break
else:
for t in self.tracks:
t.title = t.title[len(self.artist):].lstrip('/ \t-_')
# correct bad titles for the tracks, containing also the title
for t in self.tracks:
if not self.title or not t.title.startswith(self.title):
break
else:
for t in self.tracks:
t.title = t.title[len(self.title):].lstrip('/ \t-_')
cdromfd.close()
Parser = AudioDisc
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