Added rabbit mq for waveform creation.

core/tasks.py

@@ -0,0 +1,22 @@
+import shutil
+from celery.task import task
+import os
+from core.utils.waveform import generate_waveform
+from dss import settings
+
+"""
+    name='core.tasks.create_waveform_task'
+"""
+@task()
+def create_waveform_task(in_file, uid):
+    out_file = os.path.join(settings.MEDIA_ROOT, 'waveforms/%s.png' % uid)
+    print "Creating waveform \n\tIn: %s\n\tOut: %s" % (in_file, out_file)
+    generate_waveform(in_file, out_file)
+    if os.path.isfile(out_file):
+        print "Waveform generated successfully"
+        file, extension = os.path.splitext(in_file)
+        new_file = in_file.replace('cache', 'mixes')
+        print "Moving cache audio clip from %s to %s" % (in_file, new_file)
+        shutil.move(in_file, new_file)
+    else:
+        print "Outfile is missing"