def fetch_song_analysis(song):
"""
Fetches song analysis of `song` from EchoNest.
Args:
song: a pyechonest Song object
Returns:
analysis: a dictionary containing all info EchoNest provides for the
song in question
"""
opener = urllib2.build_opener()
title = song.title if song.title else 'Unknown title'
artist = song.artist_name if song.artist_name else 'Unknown artist'
messenger.print_subtask('%s - %s' % (artist, title))
song.get_audio_summary()
analysis_url = song.audio_summary['analysis_url']
request = urllib2.Request(analysis_url)
f = opener.open(request)
analysis = simplejson.load(f)
analysis['audio_summary'] = song.audio_summary
return analysis
def get_segments(song):
song.get_audio_summary()
analysis_url = song.audio_summary["analysis_url"]
r = requests.get(analysis_url)
analysis = r.json()
return analysis["segments"]
def lookup(file):
# Note that song.identify reads just the first 30 seconds of the file
fp = pyechonest.song.util.codegen(file)
#print "fp=%s" % fp
if len(fp) and "code" in fp[0]:
# The version parameter to song/identify indicates the use of echoprint
result = pyechonest.song.identify(query_obj=fp, version="4.12")
print "Got result:", result
if len(result):
song = result[0]
print "artist=%s" % song.artist_name.encode('ascii', 'replace')
print "song=%s" % song.title.encode('ascii', 'replace')
summary = song.get_audio_summary()
for attribute in summary:
print "%s=%s" % (attribute, summary[attribute])
score = song.score
code_count = fp[0]["code_count"]
print "score=%d code_count=%d accuracy=%f" % (score, code_count, float(score)/code_count)
else:
print "No match. This track may not be in the database yet."
else:
print "Couldn't decode", file
