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livetrax/gtk2_ardour/editor_timefx.cc

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/*
Copyright (C) 2000 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <iostream>
#include <cstdlib>
#include <cmath>
#include <string>
#include <pbd/error.h>
#include <pbd/pthread_utils.h>
#include <pbd/memento_command.h>
#include <gtkmm2ext/window_title.h>
#include <gtkmm2ext/utils.h>
#include "editor.h"
#include "audio_time_axis.h"
#include "audio_region_view.h"
#include "region_selection.h"
#include <ardour/session.h>
#include <ardour/region.h>
#include <ardour/audioplaylist.h>
#include <ardour/audio_track.h>
#include <ardour/audioregion.h>
#include <ardour/audio_diskstream.h>
#include <ardour/stretch.h>
#include <ardour/midi_stretch.h>
#include <ardour/pitch.h>
#ifdef USE_RUBBERBAND
#include <rubberband/RubberBandStretcher.h>
using namespace RubberBand;
#endif
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace sigc;
using namespace Gtk;
using namespace Gtkmm2ext;
Editor::TimeFXDialog::TimeFXDialog (Editor& e, bool pitch)
: ArdourDialog (X_("time fx dialog")),
editor (e),
pitching (pitch),
pitch_octave_adjustment (0.0, -4.0, 4.0, 1, 2.0),
pitch_semitone_adjustment (0.0, -12.0, 12.0, 1.0, 4.0),
pitch_cent_adjustment (0.0, -499.0, 500.0, 5.0, 15.0),
pitch_octave_spinner (pitch_octave_adjustment),
pitch_semitone_spinner (pitch_semitone_adjustment),
pitch_cent_spinner (pitch_cent_adjustment),
quick_button (_("Quick but Ugly")),
antialias_button (_("Skip Anti-aliasing")),
stretch_opts_label (_("Contents:")),
precise_button (_("Strict Linear"))
{
set_modal (true);
set_position (Gtk::WIN_POS_MOUSE);
set_name (N_("TimeFXDialog"));
WindowTitle title(Glib::get_application_name());
if (pitching) {
title += _("Pitch Shift");
} else {
title += _("Time Stretch");
}
set_title(title.get_string());
cancel_button = add_button (_("Cancel"), Gtk::RESPONSE_CANCEL);
get_vbox()->set_spacing (5);
get_vbox()->set_border_width (12);
if (pitching) {
upper_button_box.set_spacing (5);
upper_button_box.set_border_width (5);
Gtk::Label* l;
l = manage (new Label (_("Octaves")));
upper_button_box.pack_start (*l, false, false);
upper_button_box.pack_start (pitch_octave_spinner, false, false);
l = manage (new Label (_("Semitones (12TET)")));
upper_button_box.pack_start (*l, false, false);
upper_button_box.pack_start (pitch_semitone_spinner, false, false);
l = manage (new Label (_("Cents")));
upper_button_box.pack_start (*l, false, false);
upper_button_box.pack_start (pitch_cent_spinner, false, false);
pitch_cent_spinner.set_digits (1);
add_button (_("Shift"), Gtk::RESPONSE_ACCEPT);
get_vbox()->pack_start (upper_button_box, false, false);
} else {
#ifdef USE_RUBBERBAND
opts_box.set_spacing (5);
opts_box.set_border_width (5);
vector<string> strings;
set_popdown_strings (stretch_opts_selector, editor.rb_opt_strings);
/* set default */
stretch_opts_selector.set_active_text (editor.rb_opt_strings[4]);
opts_box.pack_start (precise_button, false, false);
opts_box.pack_start (stretch_opts_label, false, false);
opts_box.pack_start (stretch_opts_selector, false, false);
get_vbox()->pack_start (opts_box, false, false);
#else
upper_button_box.set_homogeneous (true);
upper_button_box.set_spacing (5);
upper_button_box.set_border_width (5);
upper_button_box.pack_start (quick_button, true, true);
upper_button_box.pack_start (antialias_button, true, true);
quick_button.set_name (N_("TimeFXButton"));
antialias_button.set_name (N_("TimeFXButton"));
get_vbox()->pack_start (upper_button_box, false, false);
#endif
add_button (_("Stretch/Shrink"), Gtk::RESPONSE_ACCEPT);
}
get_vbox()->pack_start (progress_bar);
progress_bar.set_name (N_("TimeFXProgress"));
show_all_children ();
}
gint
Editor::TimeFXDialog::update_progress ()
{
progress_bar.set_fraction (request.progress);
return !request.done;
}
void
Editor::TimeFXDialog::cancel_in_progress ()
{
status = -2;
request.cancel = true;
first_cancel.disconnect();
}
gint
Editor::TimeFXDialog::delete_in_progress (GdkEventAny* ev)
{
status = -2;
request.cancel = true;
first_delete.disconnect();
return TRUE;
}
int
Editor::time_stretch (RegionSelection& regions, float fraction)
{
// FIXME: kludge, implement stretching of selection of both types
if (regions.front()->region()->data_type() == DataType::AUDIO) {
// Audio, pop up timefx dialog
return time_fx (regions, fraction, false);
} else {
// MIDI, just stretch
RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&regions.front()->get_time_axis_view());
if (!rtv)
return -1;
boost::shared_ptr<Playlist> playlist
= rtv->track()->diskstream()->playlist();
ARDOUR::TimeFXRequest request;
request.time_fraction = fraction;
MidiStretch stretch(*session, request);
begin_reversible_command ("midi stretch");
stretch.run(regions.front()->region());
XMLNode &before = playlist->get_state();
playlist->replace_region (regions.front()->region(), stretch.results[0],
regions.front()->region()->position());
XMLNode &after = playlist->get_state();
session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
commit_reversible_command ();
}
return 0;
}
int
Editor::pitch_shift (RegionSelection& regions, float fraction)
{
return time_fx (regions, fraction, true);
}
int
Editor::time_fx (RegionSelection& regions, float val, bool pitching)
{
if (current_timefx != 0) {
delete current_timefx;
}
current_timefx = new TimeFXDialog (*this, pitching);
current_timefx->progress_bar.set_fraction (0.0f);
switch (current_timefx->run ()) {
case RESPONSE_ACCEPT:
break;
default:
current_timefx->hide ();
return 1;
}
current_timefx->status = 0;
current_timefx->regions = regions;
if (pitching) {
float cents = current_timefx->pitch_octave_adjustment.get_value() * 1200.0;
float pitch_fraction;
cents += current_timefx->pitch_semitone_adjustment.get_value() * 100.0;
cents += current_timefx->pitch_cent_adjustment.get_value();
if (cents == 0.0) {
// user didn't change anything
current_timefx->hide ();
return 0;
}
// one octave == 1200 cents
// adding one octave doubles the frequency
// ratio is 2^^octaves
pitch_fraction = pow(2, cents/1200);
current_timefx->request.time_fraction = 1.0;
current_timefx->request.pitch_fraction = pitch_fraction;
} else {
current_timefx->request.time_fraction = val;
current_timefx->request.pitch_fraction = 1.0;
}
#ifdef USE_RUBBERBAND
/* parse options */
RubberBandStretcher::Options options = 0;
bool realtime = false;
bool precise = false;
bool peaklock = true;
bool softening = true;
bool longwin = false;
bool shortwin = false;
string txt;
enum {
NoTransients,
BandLimitedTransients,
Transients
} transients = Transients;
precise = current_timefx->precise_button.get_active();
txt = current_timefx->stretch_opts_selector.get_active_text ();
if (txt == rb_opt_strings[0]) {
transients = NoTransients; peaklock = false; longwin = true; shortwin = false;
} else if (txt == rb_opt_strings[1]) {
transients = NoTransients; peaklock = false; longwin = false; shortwin = false;
} else if (txt == rb_opt_strings[2]) {
transients = NoTransients; peaklock = true; longwin = false; shortwin = false;
} else if (txt == rb_opt_strings[3]) {
transients = BandLimitedTransients; peaklock = true; longwin = false; shortwin = false;
} else if (txt == rb_opt_strings[5]) {
transients = Transients; peaklock = false; longwin = false; shortwin = true;
} else {
/* default/4 */
transients = Transients; peaklock = true; longwin = false; shortwin = false;
};
if (realtime) options |= RubberBandStretcher::OptionProcessRealTime;
if (precise) options |= RubberBandStretcher::OptionStretchPrecise;
if (!peaklock) options |= RubberBandStretcher::OptionPhaseIndependent;
if (!softening) options |= RubberBandStretcher::OptionPhasePeakLocked;
if (longwin) options |= RubberBandStretcher::OptionWindowLong;
if (shortwin) options |= RubberBandStretcher::OptionWindowShort;
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.progress = 0.0f;
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
(mem_fun (current_timefx, &TimeFXDialog::cancel_in_progress));
current_timefx->first_delete = current_timefx->signal_delete_event().connect
(mem_fun (current_timefx, &TimeFXDialog::delete_in_progress));
if (pthread_create_and_store ("timefx", &current_timefx->request.thread, 0, timefx_thread, current_timefx)) {
current_timefx->hide ();
error << _("timefx cannot be started - thread creation error") << endmsg;
return -1;
}
pthread_detach (current_timefx->request.thread);
sigc::connection c = Glib::signal_timeout().connect (mem_fun (current_timefx, &TimeFXDialog::update_progress), 100);
while (!current_timefx->request.done && !current_timefx->request.cancel) {
gtk_main_iteration ();
}
c.disconnect ();
current_timefx->hide ();
return current_timefx->status;
}
void
Editor::do_timefx (TimeFXDialog& dialog)
{
Track* t;
boost::shared_ptr<Playlist> playlist;
boost::shared_ptr<Region> new_region;
bool in_command = false;
for (RegionSelection::iterator i = dialog.regions.begin(); i != dialog.regions.end(); ) {
AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
if (!arv) {
continue;
}
boost::shared_ptr<AudioRegion> region (arv->audio_region());
TimeAxisView* tv = &(arv->get_time_axis_view());
RouteTimeAxisView* rtv;
RegionSelection::iterator tmp;
tmp = i;
++tmp;
if ((rtv = dynamic_cast<RouteTimeAxisView*> (tv)) == 0) {
i = tmp;
continue;
}
if ((t = dynamic_cast<Track*> (rtv->route().get())) == 0) {
i = tmp;
continue;
}
if ((playlist = t->diskstream()->playlist()) == 0) {
i = tmp;
continue;
}
if (dialog.request.cancel) {
/* we were cancelled */
dialog.status = 1;
return;
}
Filter* fx;
if (dialog.pitching) {
fx = new Pitch (*session, dialog.request);
} else {
fx = new Stretch (*session, dialog.request);
}
if (fx->run (region)) {
dialog.status = -1;
dialog.request.done = true;
delete fx;
return;
}
if (!fx->results.empty()) {
new_region = fx->results.front();
if (!in_command) {
begin_reversible_command (dialog.pitching ? _("pitch shift") : _("time stretch"));
in_command = true;
}
XMLNode &before = playlist->get_state();
playlist->replace_region (region, new_region, region->position());
XMLNode &after = playlist->get_state();
session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
}
i = tmp;
delete fx;
}
if (in_command) {
commit_reversible_command ();
}
dialog.status = 0;
dialog.request.done = true;
}
void*
Editor::timefx_thread (void *arg)
{
PBD::ThreadCreated (pthread_self(), X_("TimeFX"));
TimeFXDialog* tsd = static_cast<TimeFXDialog*>(arg);
pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
tsd->editor.do_timefx (*tsd);
return 0;
}