+ job->set_progress_unknown ();
+ Content::examine (job);
+
+ shared_ptr<const Film> film = _film.lock ();
+ assert (film);
+
+ SndfileDecoder dec (film, shared_from_this());
+
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ _audio_channels = dec.audio_channels ();
+ _audio_length = dec.audio_length ();
+ _audio_frame_rate = dec.audio_frame_rate ();
+ }
+
+ signal_changed (AudioContentProperty::AUDIO_CHANNELS);
+ signal_changed (AudioContentProperty::AUDIO_LENGTH);
+ signal_changed (AudioContentProperty::AUDIO_FRAME_RATE);
+
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ /* XXX: do this in signal_changed...? */
+ _audio_mapping = AudioMapping (_audio_channels);
+ _audio_mapping.make_default ();
+ }
+
+ signal_changed (AudioContentProperty::AUDIO_MAPPING);