def getpuid(self, fn, musicdns_key):
fn = abspath(fn)
# Lookup puid from the fingerprint.
try:
duration, fingerprint, puid = self.dbm[fn]
except KeyError:
duration = None
fingerprint = None
puid = None
if fingerprint is None or duration is None:
# Get the fingerprint and duration.
try:
duration, fingerprint, puid = self.dbm[fn]
except KeyError:
fingerprint, duration = musicdns.create_fingerprint(fn)
self.dbm[fn] = duration, fingerprint, puid
self.dbm.sync()
if puid is None:
assert duration is not None
puid = musicdns.lookup_fingerprint(fingerprint, duration,
musicdns_key)
self.dbm[fn] = duration, fingerprint, puid
self.dbm.sync()
return puid, duration
def askMusicDNS(filePath):
"""Fingerprint audio file; look for match in MusicDNS database.
filePath must point to an audio file with a supported format (MP3 or OGG).
This functions uses OFA (the Open Fingerprint Architecture) accessed via
the pyofa wrapper to generate an audio fingerprint for the given file.
Then it queries MusicDNS to see if the fingerprint matches a known song.
If so, it returns a dictionary of metadata including the PUID and (if found)
the artist, song title, genre and year of first release. .
If the process fails for any reason, it returns None."""
if not musicdns:
log("Cannot fingerprint; pyofa is not installed.")
return None
fileName = os.path.basename(filePath)
#try:
filePath = toUnicode(filePath).encode("UTF-8")
#except:
# log("Filepaths to be fingerprinted must contain only ASCII chars.")
# log("Bad filepath: %s" % filePath)
# return None
log("Generating an audio fingerprint for %s." % quote(fileName))
try:
fingerprint, duration = musicdns.create_fingerprint(filePath)
except IOError:
log("%s is not a supported filetype for audio fingerprinting." %
quote(fileName))
return None
log("Searching for a match in the MusicDNS database.")
try:
metadata = lookup_fingerprint_metadata(fingerprint, duration,
"a66a78b0401f53189d5dd98a5c89f5a9")
except:
log("Unable to search for MusicDNS match.")
return None
if metadata["puid"]:
log("MusicDNS found a match.")
else:
log("MusicDNS failed to find a match.")
return metadata
def process(self, file):
global musicdns
if not musicdns:
return file
if file.get('puid'):
return file
if not file.has_key('fname'):
return file
if not os.path.exists(file['fname']):
return file
try:
fp = musicdns.create_fingerprint(file['fname'])
puid = musicdns.lookup_fingerprint(fp[0], fp[1], config['musicdns.key'])
except Exception, e:
log.warn("Could not fingerprint %s: %s", file['fname'], e)
return file #We don't need the fingerprint per say
