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CC-5709: Airtime Analyzer

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* Fixed and updated the unit tests
This commit is contained in:
Albert Santoni 2014-03-25 14:34:50 -04:00
parent db2b52a1bf
commit f8c221a610
4 changed files with 35 additions and 22 deletions
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2
python_apps/airtime_analyzer/airtime_analyzer/analyzer.py
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@ -2,7 +2,7 @@
class Analyzer:
@staticmethod
def analyze(filename, results):
def analyze(filename, metadata):
raise NotImplementedError
class AnalyzerError(Exception):

1
python_apps/airtime_analyzer/airtime_analyzer/metadata_analyzer.py
View file

@ -23,6 +23,7 @@ class MetadataAnalyzer(Analyzer):
#in the file header. Mutagen breaks that out into a separate "info" object:
info = audio_file.info
metadata["sample_rate"] = info.sample_rate
metadata["length_seconds"] = info.length
#Converting the length in seconds (float) to a formatted time string
track_length = datetime.timedelta(seconds=info.length)
metadata["length"] = str(track_length) #time.strftime("%H:%M:%S.%f", track_length)

18
python_apps/airtime_analyzer/tests/analyzer_pipeline_tests.py
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@ -1,24 +1,34 @@
from nose.tools import *
import os
import shutil
import multiprocessing
import datetime
from airtime_analyzer.analyzer_pipeline import AnalyzerPipeline
DEFAULT_AUDIO_FILE = u'tests/test_data/44100Hz-16bit-mono.mp3'
DEFAULT_IMPORT_DEST = u'Test Artist/44100Hz-16bit-mono.mp3'
def setup():
pass
def teardown():
pass
#Move the file back
shutil.move(DEFAULT_IMPORT_DEST, DEFAULT_AUDIO_FILE)
assert os.path.exists(DEFAULT_AUDIO_FILE)
def test_basic():
filename = os.path.basename(DEFAULT_AUDIO_FILE)
q = multiprocessing.Queue()
AnalyzerPipeline.run_analysis(q, DEFAULT_AUDIO_FILE, u'.')
#This actually imports the file into the "./Test Artist" directory.
AnalyzerPipeline.run_analysis(q, DEFAULT_AUDIO_FILE, u'.', filename)
results = q.get()
assert results['track_title'] == u'Test Title'
assert results['artist_name'] == u'Test Artist'
assert results['album_title'] == u'Test Album'
assert results['year'] == u'1999'
assert results['genre'] == u'Test Genre'
assert results['mime_type'] == 'audio/mpeg' # Not unicode because MIMEs aren't.
assert results['length_seconds'] == 3.90925
assert results['mime'] == 'audio/mpeg' # Not unicode because MIMEs aren't.
assert results['length_seconds'] == 3.90925
assert results["length"] == str(datetime.timedelta(seconds=results["length_seconds"]))
assert os.path.exists(DEFAULT_IMPORT_DEST)

36
python_apps/airtime_analyzer/tests/metadata_analyzer_tests.py
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@ -1,4 +1,5 @@
# -*- coding: utf-8 -*-
import datetime
from nose.tools import *
from airtime_analyzer.metadata_analyzer import MetadataAnalyzer
@ -15,61 +16,62 @@ def check_default_metadata(metadata):
assert metadata['year'] == u'1999'
assert metadata['genre'] == u'Test Genre'
assert metadata['track_number'] == u'1'
assert metadata["length"] == str(datetime.timedelta(seconds=metadata["length_seconds"]))
def test_mp3_mono():
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-mono.mp3')
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-mono.mp3', dict())
check_default_metadata(metadata)
assert metadata['channels'] == 1
assert metadata['bit_rate'] == 64000
assert metadata['length_seconds'] == 3.90925
assert metadata['mime_type'] == 'audio/mpeg' # Not unicode because MIMEs aren't.
assert metadata['mime'] == 'audio/mpeg' # Not unicode because MIMEs aren't.
assert metadata['track_total'] == u'10' # MP3s can have a track_total
#Mutagen doesn't extract comments from mp3s it seems
def test_mp3_jointstereo():
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-jointstereo.mp3')
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-jointstereo.mp3', dict())
check_default_metadata(metadata)
assert metadata['channels'] == 2
assert metadata['bit_rate'] == 128000
assert metadata['length_seconds'] == 3.90075
assert metadata['mime_type'] == 'audio/mpeg'
assert metadata['mime'] == 'audio/mpeg'
assert metadata['track_total'] == u'10' # MP3s can have a track_total
def test_mp3_simplestereo():
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-simplestereo.mp3')
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-simplestereo.mp3', dict())
check_default_metadata(metadata)
assert metadata['channels'] == 2
assert metadata['bit_rate'] == 128000
assert metadata['length_seconds'] == 3.90075
assert metadata['mime_type'] == 'audio/mpeg'
assert metadata['mime'] == 'audio/mpeg'
assert metadata['track_total'] == u'10' # MP3s can have a track_total
def test_mp3_dualmono():
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-dualmono.mp3')
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-dualmono.mp3', dict())
check_default_metadata(metadata)
assert metadata['channels'] == 2
assert metadata['bit_rate'] == 128000
assert metadata['length_seconds'] == 3.90075
assert metadata['mime_type'] == 'audio/mpeg'
assert metadata['mime'] == 'audio/mpeg'
assert metadata['track_total'] == u'10' # MP3s can have a track_total
def test_ogg_mono():
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-mono.ogg')
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-mono.ogg', dict())
check_default_metadata(metadata)
assert metadata['channels'] == 1
assert metadata['bit_rate'] == 80000
assert metadata['length_seconds'] == 3.8394104308390022
assert metadata['mime_type'] == 'application/ogg'
assert metadata['mime'] == 'application/ogg'
assert metadata['comment'] == u'Test Comment'
def test_ogg_stereo():
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-stereo.ogg')
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-stereo.ogg', dict())
check_default_metadata(metadata)
assert metadata['channels'] == 2
assert metadata['bit_rate'] == 112000
assert metadata['length_seconds'] == 3.8394104308390022
assert metadata['mime_type'] == 'application/ogg'
assert metadata['mime'] == 'application/ogg'
assert metadata['comment'] == u'Test Comment'
''' faac and avconv can't seem to create a proper mono AAC file... ugh
@ -81,21 +83,21 @@ def test_aac_mono():
assert metadata['channels'] == 1
assert metadata['bit_rate'] == 80000
assert metadata['length_seconds'] == 3.8394104308390022
assert metadata['mime_type'] == 'video/mp4'
assert metadata['mime'] == 'video/mp4'
assert metadata['comment'] == u'Test Comment'
'''
def test_aac_stereo():
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-stereo.m4a')
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-stereo.m4a', dict())
check_default_metadata(metadata)
assert metadata['channels'] == 2
assert metadata['bit_rate'] == 102619
assert metadata['length_seconds'] == 3.8626303854875284
assert metadata['mime_type'] == 'video/mp4'
assert metadata['mime'] == 'video/mp4'
assert metadata['comment'] == u'Test Comment'
def test_mp3_utf8():
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-stereo-utf8.mp3')
metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-stereo-utf8.mp3', dict())
# Using a bunch of different UTF-8 codepages here. Test data is from:
# http://winrus.com/utf8-jap.htm
assert metadata['track_title'] == u'ｱｲｳｴｵｶｷｸｹｺｻｼｽｾｿﾀﾁﾂﾃ'
@ -107,6 +109,6 @@ def test_mp3_utf8():
assert metadata['channels'] == 2
assert metadata['bit_rate'] == 128000
assert metadata['length_seconds'] == 3.90075
assert metadata['mime_type'] == 'audio/mpeg'
assert metadata['mime'] == 'audio/mpeg'
assert metadata['track_total'] == u'10' # MP3s can have a track_total