2 Copyright (C) 2003 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.
23 #include <pbd/basename.h>
25 #include <soundtouch/SoundTouch.h>
27 #include <ardour/session.h>
28 #include <ardour/audioregion.h>
29 #include <ardour/sndfilesource.h>
30 #include <ardour/region_factory.h>
31 #include <ardour/source_factory.h>
36 using namespace ARDOUR;
38 using namespace soundtouch;
40 boost::shared_ptr<AudioRegion>
41 Session::tempoize_region (TimeStretchRequest& tsr)
44 SourceList::iterator it;
45 boost::shared_ptr<AudioRegion> r;
48 string ident = X_("-TIMEFX-");
50 nframes_t total_frames;
54 string::size_type len;
56 /* the soundtouch code wants a *tempo* change percentage, which is
57 of opposite sign to the length change.
60 percentage = -tsr.fraction;
62 st.setSampleRate (frame_rate());
64 st.setTempoChange (percentage);
65 st.setPitchSemiTones (0);
68 st.setSetting(SETTING_USE_QUICKSEEK, tsr.quick_seek);
69 st.setSetting(SETTING_USE_AA_FILTER, tsr.antialias);
71 vector<string> names = tsr.region->master_source_names();
74 total_frames = tsr.region->length() * tsr.region->n_channels();
77 for (uint32_t i = 0; i < tsr.region->n_channels(); ++i) {
80 string::size_type existing_ident;
82 if ((existing_ident = names[i].find (ident)) != string::npos) {
83 rstr = names[i].substr (0, existing_ident);
88 string path = path_from_region_name (PBD::basename_nosuffix (rstr), ident);
90 if (path.length() == 0) {
91 error << string_compose (_("tempoize: error creating name for new audio file based on %1"), tsr.region->name())
97 sources.push_back (boost::dynamic_pointer_cast<AudioFileSource> (SourceFactory::createWritable (DataType::AUDIO, *this, path, false, frame_rate())));
99 } catch (failed_constructor& err) {
100 error << string_compose (_("tempoize: error creating new audio file %1 (%2)"), path, strerror (errno)) << endmsg;
107 const nframes_t bufsize = 16384;
109 for (uint32_t i = 0; i < sources.size(); ++i) {
110 gain_t gain_buffer[bufsize];
111 Sample buffer[bufsize];
113 nframes_t this_read = 0;
115 boost::shared_ptr<AudioSource> asrc = boost::dynamic_pointer_cast<AudioSource>(sources[i]);
117 cerr << "FIXME: TimeFX for non-audio" << endl;
122 while (tsr.running && pos < tsr.region->length()) {
125 this_time = min (bufsize, tsr.region->length() - pos);
127 /* read from the master (original) sources for the region,
128 not the ones currently in use, in case it's already been
129 subject to timefx. */
131 if ((this_read = tsr.region->master_read_at (buffer, buffer, gain_buffer, pos + tsr.region->position(), this_time)) != this_time) {
132 error << string_compose (_("tempoize: error reading data from %1"), sources[i]->name()) << endmsg;
139 tsr.progress = (float) done / total_frames;
141 st.putSamples (buffer, this_read);
143 while ((this_read = st.receiveSamples (buffer, bufsize)) > 0 && tsr.running) {
144 if (asrc->write (buffer, this_read) != this_read) {
145 error << string_compose (_("error writing tempo-adjusted data to %1"), sources[i]->name()) << endmsg;
155 while (tsr.running && (this_read = st.receiveSamples (buffer, bufsize)) > 0) {
156 if (asrc->write (buffer, this_read) != this_read) {
157 error << string_compose (_("error writing tempo-adjusted data to %1"), sources[i]->name()) << endmsg;
162 } catch (runtime_error& err) {
163 error << _("timefx code failure. please notify ardour-developers.") << endmsg;
164 error << err.what() << endmsg;
171 xnow = localtime (&now);
173 for (it = sources.begin(); it != sources.end(); ++it) {
174 boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource>(*it);
176 afs->update_header (tsr.region->position(), *xnow, now);
180 len = tsr.region->name().length();
183 if (!isdigit (tsr.region->name()[len])) {
190 region_name = tsr.region->name() + ".t000";
194 if (tsr.region->name()[len] == 't') {
195 c = atoi (tsr.region->name().substr(len+1));
197 snprintf (buf, sizeof (buf), "t%03d", ++c);
198 region_name = tsr.region->name().substr (0, len) + buf;
202 /* not sure what this is, just tack the suffix on to it */
204 region_name = tsr.region->name() + ".t000";
209 r = (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (sources, 0, sources.front()->length(), region_name,
210 0, AudioRegion::Flag (AudioRegion::DefaultFlags | AudioRegion::WholeFile))));
214 if (sources.size()) {
216 /* if we failed to complete for any reason, mark the new file
220 if ((!r || !tsr.running)) {
221 for (it = sources.begin(); it != sources.end(); ++it) {
222 (*it)->mark_for_remove ();
229 /* if the process was cancelled, delete the region */