Merge master.

[dcpomatic.git] / src / lib / audio_mapping.h

diff --git a/src/lib/audio_mapping.h b/src/lib/audio_mapping.h
index 3c471d3f4f16aaead62df787c4c7666e5226e8aa..8be8eeb6fa030cfbb27099abdf4c18a4d9b3e519 100644 (file)
--- a/src/lib/audio_mapping.h
+++ b/src/lib/audio_mapping.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -20,31 +20,51 @@
 #ifndef DCPOMATIC_AUDIO_MAPPING_H
 #define DCPOMATIC_AUDIO_MAPPING_H
 
-#include <list>
-#include <string>
-#include <libdcp/types.h>
+#include <vector>
 #include <boost/shared_ptr.hpp>
-#include "audio_content.h"
+#include <dcp/types.h>
+#include <libcxml/cxml.h>
 
+namespace xmlpp {
+       class Node;
+}
+
+namespace cxml {
+       class Node;
+}
+
+/** A many-to-many mapping from some content channels to DCP channels.
+ *  The number of content channels is set on construction and fixed,
+ *  and then each of those content channels are mapped to each DCP channel
+ *  by a linear gain.
+ */
 class AudioMapping
 {
 public:
+       AudioMapping ();
+       AudioMapping (int channels);
+       AudioMapping (cxml::ConstNodePtr, int);
+
+       /* Default copy constructor is fine */
+       
        void as_xml (xmlpp::Node *) const;
-       void set_from_xml (boost::shared_ptr<const cxml::Node>);
 
-       void add (int, libdcp::Channel);
+       void make_default ();
 
-       int dcp_channels () const;
-       std::list<int> dcp_to_content (libdcp::Channel) const;
-       std::list<std::pair<int, libdcp::Channel> > content_to_dcp () const {
-               return _content_to_dcp;
-       }
+       void set (int, dcp::Channel, float);
+       float get (int, dcp::Channel) const;
 
-       std::list<int> content_channels () const;
-       std::list<libdcp::Channel> content_to_dcp (int) const;
+       int content_channels () const {
+               return _content_channels;
+       }
 
+       std::string digest () const;
+       
 private:
-       std::list<std::pair<int, libdcp::Channel> > _content_to_dcp;
+       void setup (int);
+       
+       int _content_channels;
+       std::vector<std::vector<float> > _gain;
 };
 
 #endif