2 Copyright (C) 1999-2008 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.
20 #include <sigc++/bind.h>
22 #include <pbd/error.h>
23 #include <glibmm/thread.h>
25 #include <ardour/export_failed.h>
26 #include <ardour/export_file_io.h>
27 #include <ardour/export_utilities.h>
28 #include <ardour/export_handler.h>
29 #include <ardour/timestamps.h>
30 #include <ardour/ardour.h>
31 #include <ardour/session.h>
32 #include <ardour/audioengine.h>
33 #include <ardour/audio_diskstream.h>
34 #include <ardour/panner.h>
39 using namespace ARDOUR;
42 boost::shared_ptr<ExportHandler>
43 Session::get_export_handler ()
45 if (!export_handler) {
46 export_handler.reset (new ExportHandler (*this));
49 return export_handler;
53 Session::release_export_handler ()
56 export_handler.reset();
61 Session::pre_export ()
64 wait_till_butler_finished ();
66 /* take everyone out of awrite to avoid disasters */
69 boost::shared_ptr<RouteList> r = routes.reader ();
71 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
72 (*i)->protect_automation ();
76 /* make sure we are actually rolling */
78 if (get_record_enabled()) {
79 disable_record (false);
84 post_export_slave = Config->get_slave_source ();
85 post_export_position = _transport_frame;
87 Config->set_slave_source (None);
90 export_status.running = true;
91 export_abort_connection = export_status.Aborting.connect (sigc::mem_fun (*this, &Session::abort_audio_export));
97 Session::start_audio_export (nframes_t position, bool realtime)
99 /* get everyone to the right position */
102 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
104 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
105 if ((*i)-> seek (position, true)) {
106 error << string_compose (_("%1: cannot seek to %2 for export"),
107 (*i)->name(), position)
114 /* we just did the core part of a locate() call above, but
115 for the sake of any GUI, put the _transport_frame in
119 _transport_frame = position;
121 _exporting_realtime = realtime;
122 export_status.stop = false;
124 /* get transport ready. note how this is calling butler functions
125 from a non-butler thread. we waited for the butler to stop
126 what it was doing earlier in Session::pre_export() and nothing
127 since then has re-awakened it.
130 set_transport_speed (1.0, false);
131 butler_transport_work ();
132 g_atomic_int_set (&butler_should_do_transport_work, 0);
135 /* we are ready to go ... */
137 if (!_engine.connected()) {
142 last_process_function = process_function;
143 process_function = &Session::process_export;
145 export_freewheel_connection = _engine.Freewheel.connect (sigc::mem_fun (*this, &Session::process_export_fw));
146 return _engine.freewheel (true);
153 Session::process_export (nframes_t nframes)
157 if (export_status.stop) {
158 stop_audio_export ();
162 if (!_exporting_realtime) {
163 /* make sure we've caught up with disk i/o, since
164 we're running faster than realtime c/o JACK.
167 wait_till_butler_finished ();
170 /* do the usual stuff */
172 process_without_events (nframes);
176 ProcessExport (nframes);
178 } catch (ExportFailed e) {
180 std::cerr << e.what() << std::endl;
182 finalize_audio_export();
188 Session::process_export_fw (nframes_t nframes)
190 process_export (nframes);
195 Session::stop_audio_export ()
197 if (_exporting_realtime) {
198 process_function = last_process_function;
200 export_freewheel_connection.disconnect();
203 /* can't use stop_transport() here because we need
204 an immediate halt and don't require all the declick
205 stuff that stop_transport() implements.
208 realtime_stop (true);
209 schedule_butler_transport_work ();
211 if (!export_status.aborted()) {
220 Session::finalize_audio_export ()
223 export_status.running = false;
225 if (!_exporting_realtime) {
226 _engine.freewheel (false);
227 _exporting_realtime = false;
232 ProcessExport.clear();
233 ExportFinished.clear();
234 export_freewheel_connection.disconnect();
235 export_abort_connection.disconnect();
236 export_handler.reset();
238 /* restart slaving */
240 if (post_export_slave != None) {
241 Config->set_slave_source (post_export_slave);
243 locate (post_export_position, false, false, false);
248 Session::abort_audio_export ()
250 stop_audio_export ();
251 finalize_audio_export ();