CC-5990, CC-5991 - Python cleanup, removed need for /usr/lib/airtime

python_apps/media-monitor/mm2/media/metadata/definitions.py

@@ -0,0 +1,158 @@
+# -*- coding: utf-8 -*-
+import process as md
+import re
+from os.path import normpath
+from ..monitor.pure import format_length, file_md5, is_airtime_recorded, \
+    no_extension_basename
+
+defs_loaded = False
+
+MAX_SIGNED_INT = 2**31-1
+
+def is_defs_loaded():
+    global defs_loaded
+    return defs_loaded
+
+def load_definitions():
+    with md.metadata('MDATA_KEY_DURATION') as t:
+        t.default(u'0.0')
+        t.depends('length')
+        t.translate(lambda k: format_length(k['length']))
+        
+    with md.metadata('MDATA_KEY_CUE_IN') as t:
+        t.default(u'0.0')
+        t.depends('cuein')
+        t.translate(lambda k: format_length(k['cuein']))
+
+    with md.metadata('MDATA_KEY_CUE_OUT') as t:
+        t.default(u'0.0')
+        t.depends('cueout')
+        t.translate(lambda k: format_length(k['cueout']))
+
+    with md.metadata('MDATA_KEY_MIME') as t:
+        t.default(u'')
+        t.depends('mime')
+        # Is this necessary?
+        t.translate(lambda k: k['mime'].replace('audio/vorbis','audio/ogg'))
+
+    with md.metadata('MDATA_KEY_BITRATE') as t:
+        t.default(u'')
+        t.depends('bitrate')
+        t.translate(lambda k: k['bitrate'])
+        t.max_value(MAX_SIGNED_INT)
+
+    with md.metadata('MDATA_KEY_SAMPLERATE') as t:
+        t.default(u'0')
+        t.depends('sample_rate')
+        t.translate(lambda k: k['sample_rate'])
+        t.max_value(MAX_SIGNED_INT)
+
+    with md.metadata('MDATA_KEY_FTYPE') as t:
+        t.depends('ftype') # i don't think this field even exists
+        t.default(u'audioclip')
+        t.translate(lambda k: k['ftype']) # but just in case
+
+    with md.metadata("MDATA_KEY_CREATOR") as t:
+        t.depends("artist")
+        # A little kludge to make sure that we have some value for when we parse
+        # MDATA_KEY_TITLE
+        t.default(u"")
+        t.max_length(512)
+
+    with md.metadata("MDATA_KEY_SOURCE") as t:
+        t.depends("album")
+        t.max_length(512)
+
+    with md.metadata("MDATA_KEY_GENRE") as t:
+        t.depends("genre")
+        t.max_length(64)
+
+    with md.metadata("MDATA_KEY_MOOD") as t:
+        t.depends("mood")
+        t.max_length(64)
+
+    with md.metadata("MDATA_KEY_TRACKNUMBER") as t:
+        t.depends("tracknumber")
+        t.max_value(MAX_SIGNED_INT)
+
+    with md.metadata("MDATA_KEY_BPM") as t:
+        t.depends("bpm")
+        t.max_value(MAX_SIGNED_INT)
+
+    with md.metadata("MDATA_KEY_LABEL") as t:
+        t.depends("organization")
+        t.max_length(512)
+
+    with md.metadata("MDATA_KEY_COMPOSER") as t:
+        t.depends("composer")
+        t.max_length(512)
+
+    with md.metadata("MDATA_KEY_ENCODER") as t:
+        t.depends("encodedby")
+        t.max_length(512)
+
+    with md.metadata("MDATA_KEY_CONDUCTOR") as t:
+        t.depends("conductor")
+        t.max_length(512)
+
+    with md.metadata("MDATA_KEY_YEAR") as t:
+        t.depends("date")
+        t.max_length(16)
+
+    with md.metadata("MDATA_KEY_URL") as t:
+        t.depends("website")
+
+    with md.metadata("MDATA_KEY_ISRC") as t:
+        t.depends("isrc")
+        t.max_length(512)
+
+    with md.metadata("MDATA_KEY_COPYRIGHT") as t:
+        t.depends("copyright")
+        t.max_length(512)
+
+    with md.metadata("MDATA_KEY_ORIGINAL_PATH") as t:
+        t.depends('path')
+        t.translate(lambda k: unicode(normpath(k['path'])))
+
+    with md.metadata("MDATA_KEY_MD5") as t:
+        t.depends('path')
+        t.optional(False)
+        t.translate(lambda k: file_md5(k['path'], max_length=100))
+
+    # owner is handled differently by (by events.py)
+
+    # MDATA_KEY_TITLE is the annoying special case b/c we sometimes read it
+    # from file name
+
+
+    # must handle 3 cases:
+    # 1. regular case (not recorded + title is present)
+    # 2. title is absent (read from file)
+    # 3. recorded file
+    def tr_title(k):
+        #unicode_unknown = u"unknown"
+        new_title = u""
+        if is_airtime_recorded(k) or k['title'] != u"":
+            new_title = k['title']
+        else:
+            default_title = no_extension_basename(k['path'])
+            default_title = re.sub(r'__\d+\.',u'.', default_title)
+
+            # format is: track_number-title-123kbps.mp3
+            m = re.match(".+?-(?P<title>.+)-(\d+kbps|unknown)$", default_title)
+            if m: new_title = m.group('title')
+            else: new_title = re.sub(r'-\d+kbps$', u'', default_title)
+
+        return new_title
+
+    with md.metadata('MDATA_KEY_TITLE') as t:
+        # Need to know MDATA_KEY_CREATOR to know if show was recorded. Value is
+        # defaulted to "" from definitions above
+        t.depends('title','MDATA_KEY_CREATOR','path')
+        t.optional(False)
+        t.translate(tr_title)
+        t.max_length(512)
+
+    with md.metadata('MDATA_KEY_LABEL') as t:
+        t.depends('label')
+        t.max_length(512)