Coalesce short reels.

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

diff --git a/src/lib/audio_mapping.h b/src/lib/audio_mapping.h
index 8804bde06174f8e9669a02a81ff207ecbd76310a..8add0ec8350ee3179d7c053881fcda927276c999 100644 (file)
--- a/src/lib/audio_mapping.h
+++ b/src/lib/audio_mapping.h
@@ -1,53 +1,78 @@
 /*
-    Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
 
-    This program is distributed in the hope that it will be useful,
+    DCP-o-matic is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 
+/** @file  src/lib/audio_mapping.h
+ *  @brief AudioMapping class.
+ */
+
+#ifndef DCPOMATIC_AUDIO_MAPPING_H
+#define DCPOMATIC_AUDIO_MAPPING_H
+
+#include <libcxml/cxml.h>
 #include <vector>
-#include <map>
-#include <boost/optional.hpp>
-#include <libdcp/types.h>
 
+namespace xmlpp {
+       class Node;
+}
+
+class AudioProcessor;
+
+/** @class AudioMapping.
+ *  @brief A many-to-many mapping of audio channels.
+ */
 class AudioMapping
 {
 public:
-       virtual boost::optional<libdcp::Channel> source_to_dcp (int c) const = 0;
-       virtual boost::optional<int> dcp_to_source (libdcp::Channel c) const = 0;
-};
+       AudioMapping ();
+       AudioMapping (int input_channels, int output_channels);
+       AudioMapping (cxml::ConstNodePtr, int);
 
-class AutomaticAudioMapping : public AudioMapping
-{
-public:
-       AutomaticAudioMapping (int);
+       /* Default copy constructor is fine */
 
-       boost::optional<libdcp::Channel> source_to_dcp (int c) const;
-       boost::optional<int> dcp_to_source (libdcp::Channel c) const;
-       int dcp_channels () const;
-       
-private:
-       int _source_channels;
-};
+       void as_xml (xmlpp::Node *) const;
 
-class ConfiguredAudioMapping : public AudioMapping
-{
-public:
-       boost::optional<libdcp::Channel> source_to_dcp (int c) const;
-       boost::optional<int> dcp_to_source (libdcp::Channel c) const;
+       void make_zero ();
+       void make_default (AudioProcessor const * processor, boost::optional<boost::filesystem::path> filename = boost::optional<boost::filesystem::path>());
+
+       void set (int input_channel, int output_channel, float);
+       float get (int input_channel, int output_channel) const;
+
+       int input_channels () const {
+               return _input_channels;
+       }
+
+       int output_channels () const {
+               return _output_channels;
+       }
+
+       std::string digest () const;
+
+       std::list<int> mapped_output_channels () const;
+       void unmap_all ();
 
 private:
-       std::map<int, libdcp::Channel> _source_to_dcp;
+       void setup (int input_channels, int output_channels);
+
+       int _input_channels;
+       int _output_channels;
+       std::vector<std::vector<float> > _gain;
 };
+
+#endif