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livetrax/gtk2_ardour/editor_timefx.cc

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/*
* Copyright (C) 2005-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
* Copyright (C) 2006 Hans Fugal <hans@fugal.net>
* Copyright (C) 2008-2012 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2008-2012 David Robillard <d@drobilla.net>
* Copyright (C) 2015-2019 Robin Gareus <robin@gareus.org>
* Copyright (C) 2015 Nick Mainsbridge <mainsbridge@gmail.com>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <iostream>
#include <cstdlib>
#include <cmath>
#include <ctime>
#include <string>
#include <set>
#include "pbd/error.h"
#include "pbd/pthread_utils.h"
#include "pbd/memento_command.h"
#include "pbd/stateful_diff_command.h"
#include "ardour/audioregion.h"
#include "ardour/midi_stretch.h"
#include "ardour/pitch.h"
#include "ardour/region.h"
#include "ardour/region_factory.h"
#include "ardour/session.h"
#include "ardour/stretch.h"
#include <gtkmm2ext/utils.h>
#include "audio_region_view.h"
#include "audio_time_axis.h"
#include "editor.h"
#include "editor_regions.h"
#include "region_selection.h"
#include "time_fx_dialog.h"
#ifdef USE_RUBBERBAND
#include <rubberband/RubberBandStretcher.h>
using namespace RubberBand;
#endif
#include "pbd/i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
using namespace Gtkmm2ext;
/** @return -1 in case of error, 1 if operation was cancelled by the user, 0 if everything went ok */
int
Editor::time_stretch (RegionSelection& regions, Temporal::ratio_t const & ratio)
{
RegionList audio;
RegionList midi;
begin_reversible_command (_("stretch/shrink"));
for (RegionSelection::iterator i = regions.begin(); i != regions.end(); ++i) {
if ((*i)->region()->data_type() == DataType::AUDIO) {
audio.push_back ((*i)->region());
} else if ((*i)->region()->data_type() == DataType::MIDI) {
midi.push_back ((*i)->region());
}
}
int aret = time_fx (audio, ratio, false);
if (aret < 0) {
abort_reversible_command ();
return aret;
}
set<boost::shared_ptr<Playlist> > midi_playlists_affected;
for (RegionList::iterator i = midi.begin(); i != midi.end(); ++i) {
boost::shared_ptr<Playlist> playlist = (*i)->playlist();
if (playlist) {
playlist->clear_changes ();
}
}
ARDOUR::TimeFXRequest request;
request.time_fraction = ratio;
for (RegionList::iterator i = midi.begin(); i != midi.end(); ++i) {
boost::shared_ptr<Playlist> playlist = (*i)->playlist();
if (!playlist) {
continue;
}
MidiStretch stretch (*_session, request);
stretch.run (*i);
playlist->replace_region (regions.front()->region(), stretch.results[0],
regions.front()->region()->position());
midi_playlists_affected.insert (playlist);
}
for (set<boost::shared_ptr<Playlist> >::iterator p = midi_playlists_affected.begin(); p != midi_playlists_affected.end(); ++p) {
PBD::StatefulDiffCommand* cmd = new StatefulDiffCommand (*p);
_session->add_command (cmd);
if (!cmd->empty ()) {
++aret;
}
}
if (aret > 0) {
commit_reversible_command ();
} else {
abort_reversible_command ();
}
return 0;
}
int
Editor::pitch_shift (RegionSelection& regions, float fraction)
{
RegionList rl;
for (RegionSelection::iterator i = regions.begin(); i != regions.end(); ++i) {
rl.push_back ((*i)->region());
}
begin_reversible_command (_("pitch shift"));
int ret = time_fx (rl, fraction, true);
if (ret > 0) {
commit_reversible_command ();
} else {
abort_reversible_command ();
}
return ret < 0 ? -1 : 0;
}
/** @param val Percentage to time stretch by; ignored if pitch-shifting.
* @param pitching true to pitch shift, false to time stretch.
* @return -1 in case of error, otherwise number of regions processed */
int
Editor::time_fx (RegionList& regions, float val, bool pitching)
{
delete current_timefx;
if (regions.empty()) {
current_timefx = 0;
return 0;
}
const timecnt_t oldlen = regions.front()->length();
const timecnt_t newlen = regions.front()->length() * val;
const timepos_t pos = regions.front()->position ();
current_timefx = new TimeFXDialog (*this, pitching, oldlen, newlen, pos);
current_timefx->regions = regions;
switch (current_timefx->run ()) {
case RESPONSE_ACCEPT:
break;
default:
current_timefx->hide ();
return -1;
}
current_timefx->status = 0;
current_timefx->request.time_fraction = current_timefx->get_time_fraction ();
current_timefx->request.pitch_fraction = current_timefx->get_pitch_fraction ();
if (current_timefx->request.time_fraction == 1.0 &&
current_timefx->request.pitch_fraction == 1.0) {
/* nothing to do */
current_timefx->hide ();
return 0;
}
#ifdef USE_RUBBERBAND
/* parse options */
RubberBandStretcher::Options options = 0;
bool realtime = false;
bool precise = false;
bool peaklock = true;
bool longwin = false;
bool shortwin = false;
bool preserve_formants = false;
string txt;
enum {
NoTransients,
BandLimitedTransients,
Transients
} transients = Transients;
precise = current_timefx->precise_button.get_active();
preserve_formants = current_timefx->preserve_formants_button.get_active();
txt = current_timefx->stretch_opts_selector.get_active_text ();
for (size_t i = 0; i < rb_opt_strings.size(); i++) {
if (txt == rb_opt_strings[i]) {
rb_current_opt = i;
break;
}
}
int rb_mode = rb_current_opt;
if (pitching /*&& rb_current_opt == 6*/) {
/* The timefx dialog does not show the "stretch_opts_selector"
* when pitch-shifting. So the most recently used option from
* "Time Stretch" would be used (if any). That may even be
* "resample without preserving pitch", which would be invalid.
*
* TODO: also show stretch_opts_selector when pitching (except the option
* to not preserve pitch) and use separate rb_current_opt when pitching.
*
* Actually overhaul this the dialog and processing opts below and use rubberband's
* "Crispness" levels:
* -c 0 equivalent to --no-transients --no-lamination --window-long
* -c 1 equivalent to --detector-soft --no-lamination --window-long (for piano)
* -c 2 equivalent to --no-transients --no-lamination
* -c 3 equivalent to --no-transients
* -c 4 equivalent to --bl-transients
* -c 5 default processing options
* -c 6 equivalent to --no-lamination --window-short (may be good for drums)
*/
rb_mode = 4;
}
switch (rb_mode) {
case 0:
transients = NoTransients; peaklock = false; longwin = true; shortwin = false;
break;
case 1:
transients = NoTransients; peaklock = false; longwin = false; shortwin = false;
break;
case 2:
transients = NoTransients; peaklock = true; longwin = false; shortwin = false;
break;
case 3:
transients = BandLimitedTransients; peaklock = true; longwin = false; shortwin = false;
break;
case 5:
transients = Transients; peaklock = false; longwin = false; shortwin = true;
break;
case 6:
transients = NoTransients;
precise = true;
preserve_formants = false;
current_timefx->request.pitch_fraction = 1.0 / current_timefx->request.time_fraction;
shortwin = true;
// peaklock = false;
break;
#ifdef HAVE_SOUNDTOUCH
case 7:
current_timefx->request.use_soundtouch = true;
break;
#endif
default:
/* default/4 */
transients = Transients; peaklock = true; longwin = false; shortwin = false;
break;
};
if (realtime) options |= RubberBandStretcher::OptionProcessRealTime;
if (precise) options |= RubberBandStretcher::OptionStretchPrecise;
if (preserve_formants) options |= RubberBandStretcher::OptionFormantPreserved;
if (!peaklock) options |= RubberBandStretcher::OptionPhaseIndependent;
if (longwin) options |= RubberBandStretcher::OptionWindowLong;
if (shortwin) options |= RubberBandStretcher::OptionWindowShort;
if (pitching) options |= RubberBandStretcher::OptionPitchHighQuality;
switch (transients) {
case NoTransients:
options |= RubberBandStretcher::OptionTransientsSmooth;
break;
case BandLimitedTransients:
options |= RubberBandStretcher::OptionTransientsMixed;
break;
case Transients:
options |= RubberBandStretcher::OptionTransientsCrisp;
break;
}
current_timefx->request.opts = (int) options;
#else
current_timefx->request.quick_seek = current_timefx->quick_button.get_active();
current_timefx->request.antialias = !current_timefx->antialias_button.get_active();
#endif
current_timefx->request.done = false;
current_timefx->request.cancel = false;
/* re-connect the cancel button and delete events */
current_timefx->first_cancel.disconnect();
current_timefx->first_delete.disconnect();
current_timefx->first_cancel = current_timefx->cancel_button->signal_clicked().connect
(sigc::mem_fun (current_timefx, &TimeFXDialog::cancel_in_progress));
current_timefx->first_delete = current_timefx->signal_delete_event().connect
(sigc::mem_fun (current_timefx, &TimeFXDialog::delete_in_progress));
if (pthread_create_and_store ("timefx", &current_timefx->request.thread, timefx_thread, current_timefx)) {
current_timefx->hide ();
error << _("timefx cannot be started - thread creation error") << endmsg;
return -1;
}
current_timefx->start_updates ();
while (!current_timefx->request.done && !current_timefx->request.cancel) {
gtk_main_iteration ();
}
pthread_join (current_timefx->request.thread, 0);
current_timefx->hide ();
if (current_timefx->status < 0) {
/* processing was cancelled, some regions may have
* been created and removed via RegionFactory::map_remove()
* The region-list does not update itself when a region is removed.
*/
_regions->redisplay ();
}
return current_timefx->status;
}
void
Editor::do_timefx ()
{
typedef std::map<boost::shared_ptr<Region>, boost::shared_ptr<Region> > ResultMap;
ResultMap results;
uint32_t const N = current_timefx->regions.size ();
for (RegionList::const_iterator i = current_timefx->regions.begin(); i != current_timefx->regions.end(); ++i) {
boost::shared_ptr<Playlist> playlist = (*i)->playlist();
if (playlist) {
playlist->clear_changes ();
}
}
for (RegionList::const_iterator i = current_timefx->regions.begin(); i != current_timefx->regions.end(); ++i) {
boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (*i);
boost::shared_ptr<Playlist> playlist;
if (!region || (playlist = region->playlist()) == 0) {
continue;
}
if (current_timefx->request.cancel) {
break;
}
Filter* fx;
if (current_timefx->pitching) {
fx = new Pitch (*_session, current_timefx->request);
} else {
#ifdef USE_RUBBERBAND
#ifdef HAVE_SOUNDTOUCH
if (current_timefx->request.use_soundtouch) {
fx = new STStretch (*_session, current_timefx->request);
} else {
fx = new RBStretch (*_session, current_timefx->request);
}
#else
fx = new RBStretch (*_session, current_timefx->request);
#endif
#else
fx = new STStretch (*_session, current_timefx->request);
#endif
}
current_timefx->descend (1.0 / N);
if (fx->run (region, current_timefx)) {
current_timefx->request.cancel = true;
delete fx;
break;
}
if (!fx->results.empty()) {
results[region] = fx->results.front();
}
current_timefx->ascend ();
delete fx;
}
pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, NULL);
if (current_timefx->request.cancel) {
current_timefx->status = -1;
for (ResultMap::const_iterator i = results.begin(); i != results.end(); ++i) {
boost::weak_ptr<Region> w = i->second;
RegionFactory::map_remove (w);
}
} else {
current_timefx->status = 0;
for (ResultMap::const_iterator i = results.begin(); i != results.end(); ++i) {
boost::shared_ptr<Region> region = i->first;
boost::shared_ptr<Region> new_region = i->second;
boost::shared_ptr<Playlist> playlist = region->playlist();
playlist->replace_region (region, new_region, region->position());
PBD::StatefulDiffCommand* cmd = new StatefulDiffCommand (playlist);
_session->add_command (cmd);
if (!cmd->empty ()) {
++current_timefx->status;
}
}
}
pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL);
current_timefx->request.done = true;
}
void*
Editor::timefx_thread (void *arg)
{
SessionEvent::create_per_thread_pool ("timefx events", 64);
TimeFXDialog* tsd = static_cast<TimeFXDialog*>(arg);
pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
tsd->editor.do_timefx ();
/* GACK! HACK! sleep for a bit so that our request buffer for the GUI
event loop doesn't die before any changes we made are processed
by the GUI ...
*/
Glib::usleep(G_USEC_PER_SEC / 5);
return 0;
}
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