-int const AudioContentProperty::AUDIO_STREAMS = 200;
-int const AudioContentProperty::AUDIO_GAIN = 201;
-int const AudioContentProperty::AUDIO_DELAY = 202;
-int const AudioContentProperty::AUDIO_VIDEO_FRAME_RATE = 203;
-
-AudioContent::AudioContent (shared_ptr<const Film> film)
- : Content (film)
- , _audio_gain (0)
- , _audio_delay (Config::instance()->default_audio_delay ())
+int const AudioContentProperty::STREAMS = 200;
+int const AudioContentProperty::GAIN = 201;
+int const AudioContentProperty::DELAY = 202;
+
+AudioContent::AudioContent (Content* parent)
+ : ContentPart (parent)
+ , _gain (0)
+ , _delay (Config::instance()->default_audio_delay ())