2 Copyright (C) 2008 Paul Davis
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #ifndef __ardour_export_timespan_h__
22 #define __ardour_export_timespan_h__
27 #include <glibmm/ustring.h>
29 #include <ardour/export_status.h>
30 #include <ardour/export_channel.h>
31 #include <ardour/ardour.h>
41 class ExportTimespan : public sigc::trackable
44 typedef boost::shared_ptr<ExportTempFile> TempFilePtr;
45 typedef std::pair<ExportChannelPtr, TempFilePtr> ChannelFilePair;
46 typedef std::map<ExportChannelPtr, TempFilePtr> TempFileMap;
47 typedef boost::shared_ptr<ExportStatus> ExportStatusPtr;
50 friend class ExportElementFactory;
51 ExportTimespan (ExportStatusPtr status, nframes_t frame_rate);
56 ustring name () const { return _name; }
57 void set_name (ustring name) { _name = name; }
59 ustring range_id () const { return _range_id; }
60 void set_range_id (ustring range_id) { _range_id = range_id; }
62 /// Registers a channel to be read when export starts rolling
63 void register_channel (ExportChannelPtr channel);
65 /// "Rewinds" the tempfiles to start reading the beginnings again
68 /// Reads data from the tempfile belonging to channel into data
69 nframes_t get_data (float * data, nframes_t frames, ExportChannelPtr channel);
71 /// Reads data from each channel and writes to tempfile
72 int process (nframes_t frames);
74 sigc::connection process_connection;
76 void set_range (nframes_t start, nframes_t end);
77 nframes_t get_length () const { return end_frame - start_frame; }
78 nframes_t get_start () const { return start_frame; }
79 nframes_t get_end () const { return end_frame; }
83 ExportStatusPtr status;
85 nframes_t start_frame;
99 #endif /* __ardour_export_timespan_h__ */