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livetrax/gtk2_ardour/editor_timefx.cc
Robin Gareus 4050ca5633
Update GPL boilerplate and (C)
Copyright-holder and year information is extracted from git log.

git history begins in 2005. So (C) from 1998..2005 is lost. Also some
(C) assignment of commits where the committer didn't use --author.
2019-08-03 15:53:15 +02:00

449 lines
13 KiB
C++

/*
* 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, float fraction)
{
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, fraction, 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 = fraction;
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 samplecnt_t oldlen = (samplecnt_t) (regions.front()->length());
const samplecnt_t newlen = (samplecnt_t) (regions.front()->length() * val);
const samplecnt_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 (int i = 0; i <= 6; 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;
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
fx = new RBStretch (*_session, current_timefx->request);
#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;
}