Basics of per-channel audio gain.

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

diff --git a/src/lib/audio_mapping.h b/src/lib/audio_mapping.h
index 9a507b550e958a8d0928adf2f1a9733eb79db708..26087bfffa8f9e04924170444eea908640b6bced 100644 (file)
--- a/src/lib/audio_mapping.h
+++ b/src/lib/audio_mapping.h
@@ -20,7 +20,7 @@
 #ifndef DCPOMATIC_AUDIO_MAPPING_H
 #define DCPOMATIC_AUDIO_MAPPING_H
 
-#include <list>
+#include <vector>
 #include <libdcp/types.h>
 #include <boost/shared_ptr.hpp>
 
@@ -34,37 +34,34 @@ namespace cxml {
 
 /** 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 can be mapped to zero or
- *  more DCP channels.
+ *  and then each of those content channels are mapped to each DCP channel
+ *  by a linear gain.
  */
 class AudioMapping
 {
 public:
        AudioMapping ();
        AudioMapping (int);
-       AudioMapping (boost::shared_ptr<const cxml::Node>);
+       AudioMapping (boost::shared_ptr<const cxml::Node>, int);
 
        /* Default copy constructor is fine */
        
        void as_xml (xmlpp::Node *) const;
 
-       void add (int, libdcp::Channel);
        void make_default ();
 
-       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, libdcp::Channel, float);
+       float get (int, libdcp::Channel) const;
 
        int content_channels () const {
                return _content_channels;
        }
        
-       std::list<libdcp::Channel> content_to_dcp (int) const;
-
 private:
+       void setup (int);
+       
        int _content_channels;
-       std::list<std::pair<int, libdcp::Channel> > _content_to_dcp;
+       std::vector<std::vector<float> > _gain;
 };
 
 #endif