only get sequences for audio. fix offset calculation

pandora/sequence/extract.py

@@ -99,7 +99,7 @@ class DataTimeline():
         x = frame * 8 - tile * self.timeline_width
         return self.timeline_image.crop((x, 0, x + 8, 8))
 
-def get_cut_sequences(stream, position=0):
+def get_cut_sequences(stream):
     timeline = DataTimeline(stream.timeline_prefix)
     cuts = list(stream.cuts) + [stream.duration]
     modes = ['color', 'shape']
@@ -120,4 +120,4 @@ def get_cut_sequences(stream, position=0):
                 'out': cut,
             })
         position = cut
-    return sequences, position
+    return sequences

pandora/sequence/tasks.py

@@ -13,8 +13,8 @@ def get_sequences(itemId):
     models.Sequence.objects.filter(sort=i.sort).delete()
     position = 0
     for stream in i.streams():
-        #data, position = extract.get_sequences(stream.timeline_prefix, position)
-        data, position = extract.get_cut_sequences(stream, position)
+        if stream.file.is_video:
+            data = extract.get_cut_sequences(stream)
             keys = None
             values = []
             for mode in data:
@@ -22,8 +22,8 @@ def get_sequences(itemId):
                     sequence = {
                         'sort_id': i.sort.pk,
                         'mode': models.Sequence.MODE[mode],
-                    'start': float('%0.03f' % s['in']),
-                    'end': float('%0.03f' % s['out']),
+                        'start': position + float('%0.03f' % s['in']),
+                        'end': position + float('%0.03f' % s['out']),
                         'hash': models.parse_hash(s['hash'])
                     }
                     sequence['duration'] = sequence['end'] - sequence['start']
@@ -37,4 +37,4 @@ def get_sequences(itemId):
                 sql = "INSERT INTO sequence_sequence (%s) VALUES %s" % (keys, ', '.join(values));
                 cursor.execute(sql)
                 transaction.commit_unless_managed()
-
+        position += stream.duration