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/*
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/export_channel.h"
#include "ardour/ardour.h"
namespace ARDOUR
{
class ExportChannel;
class ExportTempFile;
class ExportTimespan : public sigc::trackable
{
private:
typedef boost::shared_ptr<ExportTempFile> TempFilePtr;
typedef std::pair<ExportChannelPtr, TempFilePtr> ChannelFilePair;
typedef std::map<ExportChannelPtr, TempFilePtr> TempFileMap;
typedef boost::shared_ptr<ExportStatus> ExportStatusPtr;
private:
friend class ExportElementFactory;
ExportTimespan (ExportStatusPtr status, nframes_t frame_rate);
public:
~ExportTimespan ();
Glib::ustring name () const { return _name; }
void set_name (Glib::ustring name) { _name = name; }
Glib::ustring range_id () const { return _range_id; }
void set_range_id (Glib::ustring range_id) { _range_id = range_id; }
/// Registers a channel to be read when export starts rolling
void register_channel (ExportChannelPtr 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, ExportChannelPtr 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:
ExportStatusPtr status;
nframes_t start_frame;
nframes_t end_frame;
nframes_t position;
nframes_t frame_rate;
TempFileMap filemap;
Glib::ustring _name;
Glib::ustring _range_id;
};
} // namespace ARDOUR
#endif /* __ardour_export_timespan_h__ */
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