+ typedef int64_t Frame;
+
+ AudioContent (boost::shared_ptr<const Film>, DCPTime);
+ AudioContent (boost::shared_ptr<const Film>, boost::filesystem::path);
+ AudioContent (boost::shared_ptr<const Film>, cxml::ConstNodePtr);
+ AudioContent (boost::shared_ptr<const Film>, std::vector<boost::shared_ptr<Content> >);
+
+ void as_xml (xmlpp::Node *) const;
+ std::string technical_summary () const;
+
+ /** @return number of audio channels in the content */
+ virtual int audio_channels () const = 0;
+ /** @return the length of the audio in the content */
+ virtual ContentTime audio_length () const = 0;
+ /** @return the frame rate of the content */
+ virtual int audio_frame_rate () const = 0;
+ virtual AudioMapping audio_mapping () const = 0;
+ virtual void set_audio_mapping (AudioMapping);
+ virtual boost::filesystem::path audio_analysis_path () const;
+
+ int resampled_audio_frame_rate () const;
+
+ boost::signals2::connection analyse_audio (boost::function<void()>);
+
+ void set_audio_gain (double);
+ void set_audio_delay (int);
+
+ double audio_gain () const {
+ boost::mutex::scoped_lock lm (_mutex);
+ return _audio_gain;
+ }
+
+ int audio_delay () const {
+ boost::mutex::scoped_lock lm (_mutex);
+ return _audio_delay;
+ }