new files from sakari, missed last time

git-svn-id: svn://localhost/ardour2/branches/3.0@3740 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 97 insertions, 0 deletions

diff --git a/libs/ardour/ardour/export_timespan.h b/libs/ardour/ardour/export_timespan.h
new file mode 100644
index 0000000000..7995da36d2
--- /dev/null
+++ b/libs/ardour/ardour/export_timespan.h
@@ -0,0 +1,97 @@
+/*
+    Copyright (C) 2008 Paul Davis
+    Author: Sakari Bergen
+
+    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
+    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,
+    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.
+
+*/
+
+#ifndef __ardour_export_timespan_h__
+#define __ardour_export_timespan_h__
+
+#include <map>
+#include <list>
+
+#include <glibmm/ustring.h>
+
+#include <ardour/export_status.h>
+#include <ardour/ardour.h>
+
+using Glib::ustring;
+
+namespace ARDOUR
+{
+
+class ExportChannel;
+class ExportTempFile;
+
+class ExportTimespan : public sigc::trackable
+{
+  private:
+	typedef boost::shared_ptr<ExportTempFile> TempFilePtr;
+	typedef std::pair<ExportChannel const, TempFilePtr> ChannelFilePair;
+	typedef std::map<ExportChannel const, TempFilePtr> TempFileMap;
+
+  private:
+	friend class ExportElementFactory;
+	ExportTimespan (ExportStatus & status, nframes_t frame_rate);
+	
+  public:
+	~ExportTimespan ();
+	
+	ustring name () const { return _name; }
+	void set_name (ustring name) { _name = name; }
+	
+	ustring range_id () const { return _range_id; }
+	void set_range_id (ustring range_id) { _range_id = range_id; }
+	
+	/// Registers a channel to be read when export starts rolling
+	void register_channel (ExportChannel const & channel);
+	
+	/// "Rewinds" the tempfiles to start reading the beginnings again
+	void rewind ();
+	
+	/// Reads data from the tempfile belonging to channel into data
+	nframes_t get_data (float * data, nframes_t frames, ExportChannel const & channel);
+	
+	/// Reads data from each channel and writes to tempfile
+	int process (nframes_t frames);
+	
+	sigc::connection  process_connection;
+	
+	void set_range (nframes_t start, nframes_t end);
+	nframes_t get_length () const { return end_frame - start_frame; }
+	nframes_t get_start () const { return start_frame; }
+	nframes_t get_end () const { return end_frame; }
+
+  private:
+
+	ExportStatus & status;
+
+	nframes_t      start_frame;
+	nframes_t      end_frame;
+	nframes_t      position;
+	nframes_t      frame_rate;
+
+	TempFileMap    filemap;
+	
+	ustring       _name;
+	ustring       _range_id;
+
+};
+
+} // namespace ARDOUR
+
+#endif /* __ardour_export_timespan_h__ */