2 Copyright (C) 2006 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #ifndef __ardour_destructive_file_source_h__
22 #define __ardour_destructive_file_source_h__
26 #include <ardour/filesource.h>
32 class DestructiveFileSource : public FileSource {
34 DestructiveFileSource (std::string path, jack_nframes_t rate, bool repair_first = false, SampleFormat samp_format=FormatInt24);
35 DestructiveFileSource (const XMLNode&, jack_nframes_t rate);
36 ~DestructiveFileSource ();
38 int seek (jack_nframes_t frame);
39 jack_nframes_t last_capture_start_frame() const;
40 void mark_capture_start (jack_nframes_t);
41 void mark_capture_end ();
42 void clear_capture_marks();
44 jack_nframes_t write (Sample *src, jack_nframes_t cnt, char * workbuf);
46 XMLNode& get_state ();
48 static void setup_standard_crossfades (jack_nframes_t sample_rate);
51 static jack_nframes_t xfade_frames;
52 static gain_t* out_coefficient;
53 static gain_t* in_coefficient;
57 jack_nframes_t capture_start_frame;
58 jack_nframes_t file_pos; // unit is frames
61 jack_nframes_t crossfade (Sample* data, jack_nframes_t cnt, int dir, char * workbuf);
67 #endif /* __ardour_destructive_file_source_h__ */