--- /dev/null
+/*
+ Copyright (C) 2009 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 <gtkmm/table.h>
+#include <gtkmm/label.h>
+#include <gtkmm/stock.h>
+#include "strip_silence_dialog.h"
+#include "i18n.h"
+
+/** Construct Strip silence dialog box */
+StripSilenceDialog::StripSilenceDialog ()
+ : ArdourDialog (_("Strip silence"))
+{
+ Gtk::Table* table = Gtk::manage (new Gtk::Table (4, 3));
+ table->set_spacings (4);
+
+ Gtk::Label* l = Gtk::manage (new Gtk::Label (_("Threshold:")));
+ l->set_alignment (1, 0.5);
+ table->attach (*l, 0, 1, 0, 1, Gtk::FILL, Gtk::FILL);
+ _threshold.set_digits (1);
+ _threshold.set_increments (1, 10);
+ _threshold.set_range (-120, 0);
+ _threshold.set_value (-60);
+ table->attach (_threshold, 1, 2, 0, 1, Gtk::FILL, Gtk::FILL);
+ l = Gtk::manage (new Gtk::Label (_("dBFS")));
+ l->set_alignment (0, 0.5);
+ table->attach (*l, 2, 3, 0, 1, Gtk::FILL, Gtk::FILL);
+
+ l = Gtk::manage (new Gtk::Label (_("Minimum length:")));
+ l->set_alignment (1, 0.5);
+ table->attach (*l, 0, 1, 1, 2, Gtk::FILL, Gtk::FILL);
+ _minimum_length.set_digits (0);
+ _minimum_length.set_increments (1, 10);
+ _minimum_length.set_range (0, 65536);
+ _minimum_length.set_value (256);
+ table->attach (_minimum_length, 1, 2, 1, 2, Gtk::FILL, Gtk::FILL);
+ l = Gtk::manage (new Gtk::Label (_("samples")));
+ table->attach (*l, 2, 3, 1, 2, Gtk::FILL, Gtk::FILL);
+
+ l = Gtk::manage (new Gtk::Label (_("Fade length:")));
+ l->set_alignment (1, 0.5);
+ table->attach (*l, 0, 1, 2, 3, Gtk::FILL, Gtk::FILL);
+ _fade_length.set_digits (0);
+ _fade_length.set_increments (1, 10);
+ _fade_length.set_range (0, 1024);
+ _fade_length.set_value (64);
+ table->attach (_fade_length, 1, 2, 2, 3, Gtk::FILL, Gtk::FILL);
+ l = Gtk::manage (new Gtk::Label (_("samples")));
+ table->attach (*l, 2, 3, 2, 3, Gtk::FILL, Gtk::FILL);
+
+ get_vbox()->add (*table);
+
+ add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
+ add_button (Gtk::Stock::APPLY, Gtk::RESPONSE_OK);
+
+ show_all ();
+}
--- /dev/null
+/*
+ Copyright (C) 2009 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 <gtkmm/spinbutton.h>
+#include "ardour_dialog.h"
+
+/// Dialog box to set options for the `strip silence' filter
+class StripSilenceDialog : public ArdourDialog
+{
+public:
+ StripSilenceDialog ();
+
+ double threshold () const {
+ return _threshold.get_value ();
+ }
+
+ nframes_t minimum_length () const {
+ return _minimum_length.get_value_as_int ();
+ }
+
+ nframes_t fade_length () const {
+ return _fade_length.get_value_as_int ();
+ }
+
+private:
+ Gtk::SpinButton _threshold;
+ Gtk::SpinButton _minimum_length;
+ Gtk::SpinButton _fade_length;
+};
--- /dev/null
+/*
+ Copyright (C) 2009 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 "ardour/filter.h"
+
+namespace ARDOUR {
+
+/// A filter to strip silence from regions
+class StripSilence : public Filter {
+
+public:
+ StripSilence (Session &, double, nframes_t, nframes_t);
+
+ int run (boost::shared_ptr<ARDOUR::Region>);
+
+private:
+ double _threshold; ///< silence threshold, in dBFS
+ nframes_t _minimum_length; ///< minimum length to be considered silence, in samples
+ nframes_t _fade_length; ///< fade in/out to use on trimmed regions, in samples
+};
+
+}
--- /dev/null
+/*
+ Copyright (C) 2009 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 "ardour/strip_silence.h"
+#include "ardour/audioregion.h"
+#include "ardour/region_factory.h"
+#include "ardour/session.h"
+#include "ardour/dB.h"
+
+using namespace ARDOUR;
+
+/** Construct a StripSilence filter.
+ * @param s Session.
+ * @param threshold Threshold below which audio is considered silence, in dBFS.
+ * @param minimum_length Minimum length of silence period to recognise, in samples.
+ * @param fade_length Length of fade in/out to apply to trimmed regions, in samples.
+ */
+
+StripSilence::StripSilence (Session & s, double threshold, nframes_t minimum_length, nframes_t fade_length)
+ : Filter (s), _threshold (threshold), _minimum_length (minimum_length), _fade_length (fade_length)
+{
+
+}
+
+int
+StripSilence::run (boost::shared_ptr<Region> r)
+{
+ results.clear ();
+
+ /* we only operate on AudioRegions, for now, though this could be adapted to MIDI
+ as well I guess */
+ boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (r);
+ if (!region) {
+ results.push_back (r);
+ return -1;
+ }
+
+ /* find periods of silence in the region */
+ std::list<std::pair<nframes_t, nframes_t> > const silence =
+ region->find_silence (dB_to_coefficient (_threshold), _minimum_length);
+
+ if (silence.size () == 1 && silence.front().first == 0 && silence.front().second == region->length() - 1) {
+ /* the region is all silence, so just return with nothing */
+ return 0;
+ }
+
+ if (silence.empty()) {
+ /* no silence in this region */
+ results.push_back (region);
+ return 0;
+ }
+
+ std::list<std::pair<nframes_t, nframes_t > >::const_iterator s = silence.begin ();
+ nframes_t const pos = region->position ();
+ nframes_t const end = region->start () + region->length() - 1;
+ nframes_t const start = region->start ();
+
+ region = boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (region));
+ region->set_name (session.new_region_name (region->name ()));
+ boost::shared_ptr<AudioRegion> last_region = region;
+ results.push_back (region);
+
+ if (s->first == 0) {
+ /* the region starts with some silence */
+
+ /* we must set length to an intermediate value here, otherwise the call
+ ** to set_start will fail */
+ region->set_length (region->length() - s->second + _fade_length, 0);
+ region->set_start (start + s->second - _fade_length, 0);
+ region->set_position (pos + s->second - _fade_length, 0);
+ region->set_fade_in_active (true);
+ region->set_fade_in (AudioRegion::Linear, _fade_length);
+ s++;
+ }
+
+ while (s != silence.end()) {
+
+ /* trim the end of this region */
+ region->trim_end (pos + s->first + _fade_length, 0);
+ region->set_fade_out_active (true);
+ region->set_fade_out (AudioRegion::Linear, _fade_length);
+
+ /* make a new region and trim its start */
+ region = boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (region));
+ region->set_name (session.new_region_name (region->name ()));
+ last_region = region;
+ assert (region);
+ results.push_back (region);
+
+ /* set length here for the same reasons as above */
+ region->set_length (region->length() - s->second + _fade_length, 0);
+ region->set_start (start + s->second - _fade_length, 0);
+ region->set_position (pos + s->second - _fade_length, 0);
+ region->set_fade_in_active (true);
+ region->set_fade_in (AudioRegion::Linear, _fade_length);
+
+ s++;
+ }
+
+ if (silence.back().second == end) {
+ /* the last region we created is zero-sized, so just remove it */
+ results.pop_back ();
+ } else {
+ /* finish off the last region */
+ last_region->trim_end (end, 0);
+ }
+
+ return 0;
+}
projects / ardour.git / commitdiff