CC-5709: Airtime Analyzer

* Added MetadataAnalyzer unit tests and test data
* Improved debug logging and squashed pika logging
* Implemented file moving
* Extract the track number/total
* Fixed mapping of mutagen to Airtime fields in a few spots. The mapping
  matches the DB column names now.
* Fixed the bin/airtime_analyzer binary
* Started work on PluploadController to make it work with the new File
  API

python_apps/airtime_analyzer/tests/metadata_analyzer_tests.py

@@ -0,0 +1,112 @@
+# -*- coding: utf-8 -*-
+from nose.tools import *
+from airtime_analyzer.metadata_analyzer import MetadataAnalyzer 
+
+def setup():
+    pass
+
+def teardown():
+    pass
+
+def check_default_metadata(metadata):
+    assert metadata['track_title'] == u'Test Title'
+    assert metadata['artist_name'] == u'Test Artist'
+    assert metadata['album_title'] == u'Test Album'
+    assert metadata['year'] == u'1999'
+    assert metadata['genre'] == u'Test Genre'
+    assert metadata['track_number'] == u'1'
+
+def test_mp3_mono():
+    metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-mono.mp3')
+    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['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')
+    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['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')
+    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['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')
+    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['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')
+    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['comment'] == u'Test Comment'
+
+def test_ogg_stereo():
+    metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-stereo.ogg')
+    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['comment'] == u'Test Comment'
+
+''' faac and avconv can't seem to create a proper mono AAC file... ugh
+def test_aac_mono():
+    metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-mono.m4a')
+    print "Mono AAC metadata:"
+    print metadata
+    check_default_metadata(metadata)
+    assert metadata['channels'] == 1
+    assert metadata['bit_rate'] == 80000
+    assert metadata['length_seconds'] == 3.8394104308390022
+    assert metadata['mime_type'] == 'video/mp4'
+    assert metadata['comment'] == u'Test Comment'
+'''
+
+def test_aac_stereo():
+    metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-stereo.m4a')
+    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['comment'] == u'Test Comment'
+
+def test_mp3_utf8():
+    metadata = MetadataAnalyzer.analyze(u'tests/test_data/44100Hz-16bit-stereo-utf8.mp3')
+    # 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'
+    assert metadata['artist_name'] == u'てすと'
+    assert metadata['album_title'] == u'Ä ä Ü ü ß'
+    assert metadata['year'] == u'1999'
+    assert metadata['genre'] == u'Я Б Г Д Ж Й'
+    assert metadata['track_number'] == u'1'
+    assert metadata['channels'] == 2
+    assert metadata['bit_rate'] == 128000
+    assert metadata['length_seconds'] == 3.90075 
+    assert metadata['mime_type'] == 'audio/mpeg'
+    assert metadata['track_total'] == u'10' # MP3s can have a track_total
+