only extract keyframe index for video files

pandora/archive/extract.py

@@ -352,6 +352,7 @@ def stream(video, target, profile, info, audio_track=0, flags={}):
         shutil.move(enc_target, target)
     for f in glob('%s.log*' % target):
         os.unlink(f)
+    if info['video']:
         make_keyframe_index(target)
     return True, None
 

pandora/archive/models.py

@@ -370,6 +370,7 @@ class File(models.Model):
                         self.info.update(stream.info)
                         self.parse_info()
                         self.save()
+                    if stream.info.get('video'):
                         extract.make_keyframe_index(stream.media.path)
                 return True, stream.media.size
             return save_chunk(stream, stream.media, chunk, offset, name, done_cb)