Paul Davis
af12adb34f
git-svn-id: svn://localhost/ardour2/trunk@1209 d708f5d6-7413-0410-9779-e7cbd77b26cf
1391 lines
33 KiB
C++
1391 lines
33 KiB
C++
/*
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Copyright (C) 2000-2001 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id$
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*/
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#include <cmath>
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#include <climits>
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#include <cfloat>
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#include <set>
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#include <sigc++/bind.h>
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#include <sigc++/class_slot.h>
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#include <glibmm/thread.h>
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#include <pbd/basename.h>
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#include <pbd/xml++.h>
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#include <pbd/stacktrace.h>
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#include <ardour/audioregion.h>
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#include <ardour/session.h>
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#include <ardour/gain.h>
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#include <ardour/dB.h>
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#include <ardour/playlist.h>
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#include <ardour/audiofilter.h>
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#include <ardour/audiofilesource.h>
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#include <ardour/destructive_filesource.h>
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#include "i18n.h"
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#include <locale.h>
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using namespace std;
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using namespace ARDOUR;
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/* a Session will reset these to its chosen defaults by calling AudioRegion::set_default_fade() */
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Change AudioRegion::FadeInChanged = ARDOUR::new_change();
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Change AudioRegion::FadeOutChanged = ARDOUR::new_change();
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Change AudioRegion::FadeInActiveChanged = ARDOUR::new_change();
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Change AudioRegion::FadeOutActiveChanged = ARDOUR::new_change();
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Change AudioRegion::EnvelopeActiveChanged = ARDOUR::new_change();
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Change AudioRegion::ScaleAmplitudeChanged = ARDOUR::new_change();
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Change AudioRegion::EnvelopeChanged = ARDOUR::new_change();
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AudioRegion::AudioRegion (boost::shared_ptr<AudioSource> src, nframes_t start, nframes_t length)
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: Region (start, length, PBD::basename_nosuffix(src->name()), 0, Region::Flag(Region::DefaultFlags|Region::External)),
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_fade_in (0.0, 2.0, 1.0, false),
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_fade_out (0.0, 2.0, 1.0, false),
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_envelope (0.0, 2.0, 1.0, false)
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{
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/* basic AudioRegion constructor */
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sources.push_back (src);
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master_sources.push_back (src);
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src->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
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boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource> (src);
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if (afs) {
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afs->HeaderPositionOffsetChanged.connect (mem_fun (*this, &AudioRegion::source_offset_changed));
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}
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_scale_amplitude = 1.0;
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set_default_fades ();
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set_default_envelope ();
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listen_to_my_curves ();
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}
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AudioRegion::AudioRegion (boost::shared_ptr<AudioSource> src, nframes_t start, nframes_t length, const string& name, layer_t layer, Flag flags)
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: Region (start, length, name, layer, flags),
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_fade_in (0.0, 2.0, 1.0, false),
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_fade_out (0.0, 2.0, 1.0, false),
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_envelope (0.0, 2.0, 1.0, false)
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{
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/* basic AudioRegion constructor */
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sources.push_back (src);
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master_sources.push_back (src);
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src->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
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boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource> (src);
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if (afs) {
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afs->HeaderPositionOffsetChanged.connect (mem_fun (*this, &AudioRegion::source_offset_changed));
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}
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_scale_amplitude = 1.0;
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set_default_fades ();
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set_default_envelope ();
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listen_to_my_curves ();
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}
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AudioRegion::AudioRegion (SourceList& srcs, nframes_t start, nframes_t length, const string& name, layer_t layer, Flag flags)
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: Region (start, length, name, layer, flags),
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_fade_in (0.0, 2.0, 1.0, false),
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_fade_out (0.0, 2.0, 1.0, false),
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_envelope (0.0, 2.0, 1.0, false)
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{
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/* basic AudioRegion constructor */
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for (SourceList::iterator i=srcs.begin(); i != srcs.end(); ++i) {
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sources.push_back (*i);
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master_sources.push_back (*i);
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(*i)->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
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boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource> ((*i));
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if (afs) {
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afs->HeaderPositionOffsetChanged.connect (mem_fun (*this, &AudioRegion::source_offset_changed));
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}
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}
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_scale_amplitude = 1.0;
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set_default_fades ();
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set_default_envelope ();
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listen_to_my_curves ();
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}
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AudioRegion::AudioRegion (boost::shared_ptr<const AudioRegion> other, nframes_t offset, nframes_t length, const string& name, layer_t layer, Flag flags)
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: Region (other, offset, length, name, layer, flags),
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_fade_in (other->_fade_in),
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_fade_out (other->_fade_out),
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_envelope (other->_envelope, (double) offset, (double) offset + length)
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{
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/* create a new AudioRegion, that is part of an existing one */
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set<boost::shared_ptr<AudioSource> > unique_srcs;
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for (SourceList::const_iterator i= other->sources.begin(); i != other->sources.end(); ++i) {
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sources.push_back (*i);
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(*i)->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
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pair<set<boost::shared_ptr<AudioSource> >::iterator,bool> result;
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result = unique_srcs.insert (*i);
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if (result.second) {
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boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource> (*i);
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if (afs) {
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afs->HeaderPositionOffsetChanged.connect (mem_fun (*this, &AudioRegion::source_offset_changed));
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}
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}
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}
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for (SourceList::const_iterator i = other->master_sources.begin(); i != other->master_sources.end(); ++i) {
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if (unique_srcs.find (*i) == unique_srcs.end()) {
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(*i)->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
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}
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master_sources.push_back (*i);
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}
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/* return to default fades if the existing ones are too long */
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_fade_in_disabled = 0;
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_fade_out_disabled = 0;
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if (_flags & LeftOfSplit) {
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if (_fade_in.back()->when >= _length) {
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set_default_fade_in ();
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} else {
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_fade_in_disabled = other->_fade_in_disabled;
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}
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set_default_fade_out ();
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_flags = Flag (_flags & ~Region::LeftOfSplit);
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}
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if (_flags & RightOfSplit) {
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if (_fade_out.back()->when >= _length) {
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set_default_fade_out ();
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} else {
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_fade_out_disabled = other->_fade_out_disabled;
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}
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set_default_fade_in ();
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_flags = Flag (_flags & ~Region::RightOfSplit);
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}
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_scale_amplitude = other->_scale_amplitude;
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listen_to_my_curves ();
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}
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AudioRegion::AudioRegion (boost::shared_ptr<const AudioRegion> other)
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: Region (other),
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_fade_in (other->_fade_in),
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_fade_out (other->_fade_out),
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_envelope (other->_envelope)
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{
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/* Pure copy constructor */
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set<boost::shared_ptr<AudioSource> > unique_srcs;
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for (SourceList::const_iterator i = other->sources.begin(); i != other->sources.end(); ++i) {
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sources.push_back (*i);
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(*i)->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
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pair<set<boost::shared_ptr<AudioSource> >::iterator,bool> result;
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result = unique_srcs.insert (*i);
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if (result.second) {
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boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource> (*i);
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if (afs) {
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afs->HeaderPositionOffsetChanged.connect (mem_fun (*this, &AudioRegion::source_offset_changed));
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}
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}
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}
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for (SourceList::const_iterator i = other->master_sources.begin(); i != other->master_sources.end(); ++i) {
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master_sources.push_back (*i);
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if (unique_srcs.find (*i) == unique_srcs.end()) {
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(*i)->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
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}
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}
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_scale_amplitude = other->_scale_amplitude;
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_envelope = other->_envelope;
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_fade_in_disabled = 0;
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_fade_out_disabled = 0;
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listen_to_my_curves ();
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}
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AudioRegion::AudioRegion (boost::shared_ptr<AudioSource> src, const XMLNode& node)
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: Region (node),
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_fade_in (0.0, 2.0, 1.0, false),
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_fade_out (0.0, 2.0, 1.0, false),
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_envelope (0.0, 2.0, 1.0, false)
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{
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sources.push_back (src);
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master_sources.push_back (src);
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src->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
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boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource> (src);
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if (afs) {
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afs->HeaderPositionOffsetChanged.connect (mem_fun (*this, &AudioRegion::source_offset_changed));
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}
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set_default_fades ();
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if (set_state (node)) {
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throw failed_constructor();
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}
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listen_to_my_curves ();
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}
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AudioRegion::AudioRegion (SourceList& srcs, const XMLNode& node)
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: Region (node),
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_fade_in (0.0, 2.0, 1.0, false),
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_fade_out (0.0, 2.0, 1.0, false),
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_envelope (0.0, 2.0, 1.0, false)
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{
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set<boost::shared_ptr<AudioSource> > unique_srcs;
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for (SourceList::iterator i=srcs.begin(); i != srcs.end(); ++i) {
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sources.push_back (*i);
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(*i)->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
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pair<set<boost::shared_ptr<AudioSource> >::iterator,bool> result;
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result = unique_srcs.insert (*i);
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if (result.second) {
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boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource> (*i);
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if (afs) {
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afs->HeaderPositionOffsetChanged.connect (mem_fun (*this, &AudioRegion::source_offset_changed));
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}
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}
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}
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for (SourceList::iterator i = srcs.begin(); i != srcs.end(); ++i) {
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master_sources.push_back (*i);
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if (unique_srcs.find (*i) == unique_srcs.end()) {
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(*i)->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
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}
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}
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set_default_fades ();
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_scale_amplitude = 1.0;
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if (set_state (node)) {
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throw failed_constructor();
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}
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listen_to_my_curves ();
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}
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AudioRegion::~AudioRegion ()
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{
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boost::shared_ptr<Playlist> pl (playlist());
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if (pl) {
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for (SourceList::const_iterator i = sources.begin(); i != sources.end(); ++i) {
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(*i)->remove_playlist (pl);
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}
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}
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notify_callbacks ();
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GoingAway (); /* EMIT SIGNAL */
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}
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void
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AudioRegion::listen_to_my_curves ()
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{
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_envelope.StateChanged.connect (mem_fun (*this, &AudioRegion::envelope_changed));
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_fade_in.StateChanged.connect (mem_fun (*this, &AudioRegion::fade_in_changed));
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_fade_out.StateChanged.connect (mem_fun (*this, &AudioRegion::fade_out_changed));
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}
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bool
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AudioRegion::verify_length (nframes_t len)
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{
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boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource>(source());
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if (afs && afs->destructive()) {
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return true;
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}
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for (uint32_t n=0; n < sources.size(); ++n) {
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if (_start > sources[n]->length() - len) {
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return false;
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}
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}
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return true;
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}
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bool
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AudioRegion::verify_start_and_length (nframes_t new_start, nframes_t new_length)
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{
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boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource>(source());
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if (afs && afs->destructive()) {
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return true;
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}
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for (uint32_t n=0; n < sources.size(); ++n) {
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if (new_length > sources[n]->length() - new_start) {
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return false;
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}
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}
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return true;
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}
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bool
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AudioRegion::verify_start (nframes_t pos)
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{
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boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource>(source());
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if (afs && afs->destructive()) {
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return true;
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}
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for (uint32_t n=0; n < sources.size(); ++n) {
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if (pos > sources[n]->length() - _length) {
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return false;
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}
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}
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return true;
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}
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bool
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AudioRegion::verify_start_mutable (nframes_t& new_start)
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{
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boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource>(source());
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if (afs && afs->destructive()) {
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return true;
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}
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for (uint32_t n=0; n < sources.size(); ++n) {
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if (new_start > sources[n]->length() - _length) {
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new_start = sources[n]->length() - _length;
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}
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}
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return true;
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}
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void
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AudioRegion::set_envelope_active (bool yn)
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{
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if (envelope_active() != yn) {
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char buf[64];
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if (yn) {
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snprintf (buf, sizeof (buf), "envelope active");
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_flags = Flag (_flags|EnvelopeActive);
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} else {
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snprintf (buf, sizeof (buf), "envelope off");
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_flags = Flag (_flags & ~EnvelopeActive);
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}
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send_change (EnvelopeActiveChanged);
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}
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}
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nframes_t
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AudioRegion::read_peaks (PeakData *buf, nframes_t npeaks, nframes_t offset, nframes_t cnt, uint32_t chan_n, double samples_per_unit) const
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{
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if (chan_n >= sources.size()) {
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return 0;
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}
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if (sources[chan_n]->read_peaks (buf, npeaks, offset, cnt, samples_per_unit)) {
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return 0;
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} else {
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if (_scale_amplitude != 1.0) {
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for (nframes_t n = 0; n < npeaks; ++n) {
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buf[n].max *= _scale_amplitude;
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buf[n].min *= _scale_amplitude;
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}
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}
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return cnt;
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}
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}
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nframes_t
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AudioRegion::read_at (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, nframes_t position,
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nframes_t cnt,
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uint32_t chan_n, nframes_t read_frames, nframes_t skip_frames) const
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{
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return _read_at (sources, buf, mixdown_buffer, gain_buffer, position, cnt, chan_n, read_frames, skip_frames);
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}
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nframes_t
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AudioRegion::master_read_at (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, nframes_t position,
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nframes_t cnt, uint32_t chan_n) const
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{
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return _read_at (master_sources, buf, mixdown_buffer, gain_buffer, position, cnt, chan_n, 0, 0);
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}
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nframes_t
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AudioRegion::_read_at (const SourceList& srcs, Sample *buf, Sample *mixdown_buffer, float *gain_buffer,
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nframes_t position, nframes_t cnt,
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uint32_t chan_n, nframes_t read_frames, nframes_t skip_frames) const
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{
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nframes_t internal_offset;
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nframes_t buf_offset;
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nframes_t to_read;
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/* precondition: caller has verified that we cover the desired section */
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if (chan_n >= sources.size()) {
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return 0; /* read nothing */
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}
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if (position < _position) {
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internal_offset = 0;
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buf_offset = _position - position;
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cnt -= buf_offset;
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} else {
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internal_offset = position - _position;
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buf_offset = 0;
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}
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if (internal_offset >= _length) {
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return 0; /* read nothing */
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}
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if ((to_read = min (cnt, _length - internal_offset)) == 0) {
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return 0; /* read nothing */
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}
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if (opaque()) {
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/* overwrite whatever is there */
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mixdown_buffer = buf + buf_offset;
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} else {
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mixdown_buffer += buf_offset;
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}
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if (muted()) {
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return 0; /* read nothing */
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}
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_read_data_count = 0;
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if (srcs[chan_n]->read (mixdown_buffer, _start + internal_offset, to_read) != to_read) {
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return 0; /* "read nothing" */
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}
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_read_data_count += srcs[chan_n]->read_data_count();
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/* fade in */
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if (_flags & FadeIn) {
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|
|
nframes_t fade_in_length = (nframes_t) _fade_in.back()->when;
|
|
|
|
/* see if this read is within the fade in */
|
|
|
|
if (internal_offset < fade_in_length) {
|
|
|
|
nframes_t limit;
|
|
|
|
limit = min (to_read, fade_in_length - internal_offset);
|
|
|
|
_fade_in.get_vector (internal_offset, internal_offset+limit, gain_buffer, limit);
|
|
|
|
for (nframes_t n = 0; n < limit; ++n) {
|
|
mixdown_buffer[n] *= gain_buffer[n];
|
|
}
|
|
}
|
|
}
|
|
|
|
/* fade out */
|
|
|
|
if (_flags & FadeOut) {
|
|
|
|
/* see if some part of this read is within the fade out */
|
|
|
|
/* ................. >| REGION
|
|
_length
|
|
|
|
{ } FADE
|
|
fade_out_length
|
|
^
|
|
_length - fade_out_length
|
|
|--------------|
|
|
^internal_offset
|
|
^internal_offset + to_read
|
|
|
|
we need the intersection of [internal_offset,internal_offset+to_read] with
|
|
[_length - fade_out_length, _length]
|
|
|
|
*/
|
|
|
|
|
|
nframes_t fade_out_length = (nframes_t) _fade_out.back()->when;
|
|
nframes_t fade_interval_start = max(internal_offset, _length-fade_out_length);
|
|
nframes_t fade_interval_end = min(internal_offset + to_read, _length);
|
|
|
|
if (fade_interval_end > fade_interval_start) {
|
|
/* (part of the) the fade out is in this buffer */
|
|
|
|
nframes_t limit = fade_interval_end - fade_interval_start;
|
|
nframes_t curve_offset = fade_interval_start - (_length-fade_out_length);
|
|
nframes_t fade_offset = fade_interval_start - internal_offset;
|
|
|
|
_fade_out.get_vector (curve_offset,curve_offset+limit, gain_buffer, limit);
|
|
|
|
for (nframes_t n = 0, m = fade_offset; n < limit; ++n, ++m) {
|
|
mixdown_buffer[m] *= gain_buffer[n];
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/* Regular gain curves */
|
|
|
|
if (envelope_active()) {
|
|
_envelope.get_vector (internal_offset, internal_offset + to_read, gain_buffer, to_read);
|
|
|
|
if (_scale_amplitude != 1.0f) {
|
|
for (nframes_t n = 0; n < to_read; ++n) {
|
|
mixdown_buffer[n] *= gain_buffer[n] * _scale_amplitude;
|
|
}
|
|
} else {
|
|
for (nframes_t n = 0; n < to_read; ++n) {
|
|
mixdown_buffer[n] *= gain_buffer[n];
|
|
}
|
|
}
|
|
} else if (_scale_amplitude != 1.0f) {
|
|
Session::apply_gain_to_buffer (mixdown_buffer, to_read, _scale_amplitude);
|
|
}
|
|
|
|
if (!opaque()) {
|
|
|
|
/* gack. the things we do for users.
|
|
*/
|
|
|
|
buf += buf_offset;
|
|
|
|
for (nframes_t n = 0; n < to_read; ++n) {
|
|
buf[n] += mixdown_buffer[n];
|
|
}
|
|
}
|
|
|
|
return to_read;
|
|
}
|
|
|
|
XMLNode&
|
|
AudioRegion::state (bool full)
|
|
{
|
|
XMLNode& node (Region::state (full));
|
|
XMLNode *child;
|
|
char buf[64];
|
|
char buf2[64];
|
|
LocaleGuard lg (X_("POSIX"));
|
|
|
|
snprintf (buf, sizeof (buf), "0x%x", (int) _flags);
|
|
node.add_property ("flags", buf);
|
|
snprintf (buf, sizeof(buf), "%.12g", _scale_amplitude);
|
|
node.add_property ("scale-gain", buf);
|
|
|
|
for (uint32_t n=0; n < sources.size(); ++n) {
|
|
snprintf (buf2, sizeof(buf2), "source-%d", n);
|
|
sources[n]->id().print (buf, sizeof (buf));
|
|
node.add_property (buf2, buf);
|
|
}
|
|
|
|
snprintf (buf, sizeof (buf), "%u", (uint32_t) sources.size());
|
|
node.add_property ("channels", buf);
|
|
|
|
if (full) {
|
|
|
|
child = node.add_child (X_("FadeIn"));
|
|
|
|
if ((_flags & DefaultFadeIn)) {
|
|
child->add_property (X_("default"), X_("yes"));
|
|
} else {
|
|
child->add_child_nocopy (_fade_in.get_state ());
|
|
}
|
|
|
|
child->add_property (X_("active"), _fade_in_disabled ? X_("no") : X_("yes"));
|
|
|
|
child = node.add_child (X_("FadeOut"));
|
|
|
|
if ((_flags & DefaultFadeOut)) {
|
|
child->add_property (X_("default"), X_("yes"));
|
|
} else {
|
|
child->add_child_nocopy (_fade_out.get_state ());
|
|
}
|
|
|
|
child->add_property (X_("active"), _fade_out_disabled ? X_("no") : X_("yes"));
|
|
}
|
|
|
|
child = node.add_child ("Envelope");
|
|
|
|
if (full) {
|
|
bool default_env = false;
|
|
|
|
// If there are only two points, the points are in the start of the region and the end of the region
|
|
// so, if they are both at 1.0f, that means the default region.
|
|
|
|
if (_envelope.size() == 2 &&
|
|
_envelope.front()->value == 1.0f &&
|
|
_envelope.back()->value==1.0f) {
|
|
if (_envelope.front()->when == 0 && _envelope.back()->when == _length) {
|
|
default_env = true;
|
|
}
|
|
}
|
|
|
|
if (default_env) {
|
|
child->add_property ("default", "yes");
|
|
} else {
|
|
child->add_child_nocopy (_envelope.get_state ());
|
|
}
|
|
|
|
} else {
|
|
child->add_property ("default", "yes");
|
|
}
|
|
|
|
if (full && _extra_xml) {
|
|
node.add_child_copy (*_extra_xml);
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
int
|
|
AudioRegion::set_live_state (const XMLNode& node, Change& what_changed, bool send)
|
|
{
|
|
const XMLNodeList& nlist = node.children();
|
|
const XMLProperty *prop;
|
|
LocaleGuard lg (X_("POSIX"));
|
|
|
|
Region::set_live_state (node, what_changed, false);
|
|
|
|
uint32_t old_flags = _flags;
|
|
|
|
if ((prop = node.property ("flags")) != 0) {
|
|
_flags = Flag (strtol (prop->value().c_str(), (char **) 0, 16));
|
|
|
|
_flags = Flag (_flags & ~Region::LeftOfSplit);
|
|
_flags = Flag (_flags & ~Region::RightOfSplit);
|
|
}
|
|
|
|
if ((old_flags ^ _flags) & Muted) {
|
|
what_changed = Change (what_changed|MuteChanged);
|
|
}
|
|
if ((old_flags ^ _flags) & Opaque) {
|
|
what_changed = Change (what_changed|OpacityChanged);
|
|
}
|
|
if ((old_flags ^ _flags) & Locked) {
|
|
what_changed = Change (what_changed|LockChanged);
|
|
}
|
|
|
|
if ((prop = node.property ("scale-gain")) != 0) {
|
|
_scale_amplitude = atof (prop->value().c_str());
|
|
} else {
|
|
_scale_amplitude = 1.0;
|
|
}
|
|
|
|
/* Now find envelope description and other misc child items */
|
|
|
|
for (XMLNodeConstIterator niter = nlist.begin(); niter != nlist.end(); ++niter) {
|
|
|
|
XMLNode *child;
|
|
XMLProperty *prop;
|
|
|
|
child = (*niter);
|
|
|
|
if (child->name() == "Envelope") {
|
|
|
|
_envelope.clear ();
|
|
|
|
if ((prop = child->property ("default")) != 0 || _envelope.set_state (*child)) {
|
|
set_default_envelope ();
|
|
}
|
|
|
|
_envelope.set_max_xval (_length);
|
|
_envelope.truncate_end (_length);
|
|
|
|
} else if (child->name() == "FadeIn") {
|
|
|
|
_fade_in.clear ();
|
|
|
|
if ((prop = child->property ("default")) != 0 || (prop = child->property ("steepness")) != 0 || _fade_in.set_state (*child)) {
|
|
set_default_fade_in ();
|
|
}
|
|
|
|
} else if (child->name() == "FadeOut") {
|
|
|
|
_fade_out.clear ();
|
|
|
|
if ((prop = child->property ("default")) != 0 || (prop = child->property ("steepness")) != 0 || _fade_out.set_state (*child)) {
|
|
set_default_fade_out ();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (send) {
|
|
send_change (what_changed);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
AudioRegion::set_state (const XMLNode& node)
|
|
{
|
|
/* Region::set_state() calls the virtual set_live_state(),
|
|
which will get us back to AudioRegion::set_live_state()
|
|
to handle the relevant stuff.
|
|
*/
|
|
|
|
return Region::set_state (node);
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_fade_in_shape (FadeShape shape)
|
|
{
|
|
set_fade_in (shape, (nframes_t) _fade_in.back()->when);
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_fade_out_shape (FadeShape shape)
|
|
{
|
|
set_fade_out (shape, (nframes_t) _fade_out.back()->when);
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_fade_in (FadeShape shape, nframes_t len)
|
|
{
|
|
_fade_in.freeze ();
|
|
_fade_in.clear ();
|
|
|
|
switch (shape) {
|
|
case Linear:
|
|
_fade_in.fast_simple_add (0.0, 0.0);
|
|
_fade_in.fast_simple_add (len, 1.0);
|
|
break;
|
|
|
|
case Fast:
|
|
_fade_in.fast_simple_add (0, 0);
|
|
_fade_in.fast_simple_add (len * 0.389401, 0.0333333);
|
|
_fade_in.fast_simple_add (len * 0.629032, 0.0861111);
|
|
_fade_in.fast_simple_add (len * 0.829493, 0.233333);
|
|
_fade_in.fast_simple_add (len * 0.9447, 0.483333);
|
|
_fade_in.fast_simple_add (len * 0.976959, 0.697222);
|
|
_fade_in.fast_simple_add (len, 1);
|
|
break;
|
|
|
|
case Slow:
|
|
_fade_in.fast_simple_add (0, 0);
|
|
_fade_in.fast_simple_add (len * 0.0207373, 0.197222);
|
|
_fade_in.fast_simple_add (len * 0.0645161, 0.525);
|
|
_fade_in.fast_simple_add (len * 0.152074, 0.802778);
|
|
_fade_in.fast_simple_add (len * 0.276498, 0.919444);
|
|
_fade_in.fast_simple_add (len * 0.481567, 0.980556);
|
|
_fade_in.fast_simple_add (len * 0.767281, 1);
|
|
_fade_in.fast_simple_add (len, 1);
|
|
break;
|
|
|
|
case LogA:
|
|
_fade_in.fast_simple_add (0, 0);
|
|
_fade_in.fast_simple_add (len * 0.0737327, 0.308333);
|
|
_fade_in.fast_simple_add (len * 0.246544, 0.658333);
|
|
_fade_in.fast_simple_add (len * 0.470046, 0.886111);
|
|
_fade_in.fast_simple_add (len * 0.652074, 0.972222);
|
|
_fade_in.fast_simple_add (len * 0.771889, 0.988889);
|
|
_fade_in.fast_simple_add (len, 1);
|
|
break;
|
|
|
|
case LogB:
|
|
_fade_in.fast_simple_add (0, 0);
|
|
_fade_in.fast_simple_add (len * 0.304147, 0.0694444);
|
|
_fade_in.fast_simple_add (len * 0.529954, 0.152778);
|
|
_fade_in.fast_simple_add (len * 0.725806, 0.333333);
|
|
_fade_in.fast_simple_add (len * 0.847926, 0.558333);
|
|
_fade_in.fast_simple_add (len * 0.919355, 0.730556);
|
|
_fade_in.fast_simple_add (len, 1);
|
|
break;
|
|
}
|
|
|
|
_fade_in.thaw ();
|
|
_fade_in_shape = shape;
|
|
|
|
send_change (FadeInChanged);
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_fade_out (FadeShape shape, nframes_t len)
|
|
{
|
|
_fade_out.freeze ();
|
|
_fade_out.clear ();
|
|
|
|
switch (shape) {
|
|
case Fast:
|
|
_fade_out.fast_simple_add (len * 0, 1);
|
|
_fade_out.fast_simple_add (len * 0.023041, 0.697222);
|
|
_fade_out.fast_simple_add (len * 0.0553, 0.483333);
|
|
_fade_out.fast_simple_add (len * 0.170507, 0.233333);
|
|
_fade_out.fast_simple_add (len * 0.370968, 0.0861111);
|
|
_fade_out.fast_simple_add (len * 0.610599, 0.0333333);
|
|
_fade_out.fast_simple_add (len * 1, 0);
|
|
break;
|
|
|
|
case LogA:
|
|
_fade_out.fast_simple_add (len * 0, 1);
|
|
_fade_out.fast_simple_add (len * 0.228111, 0.988889);
|
|
_fade_out.fast_simple_add (len * 0.347926, 0.972222);
|
|
_fade_out.fast_simple_add (len * 0.529954, 0.886111);
|
|
_fade_out.fast_simple_add (len * 0.753456, 0.658333);
|
|
_fade_out.fast_simple_add (len * 0.9262673, 0.308333);
|
|
_fade_out.fast_simple_add (len * 1, 0);
|
|
break;
|
|
|
|
case Slow:
|
|
_fade_out.fast_simple_add (len * 0, 1);
|
|
_fade_out.fast_simple_add (len * 0.305556, 1);
|
|
_fade_out.fast_simple_add (len * 0.548611, 0.991736);
|
|
_fade_out.fast_simple_add (len * 0.759259, 0.931129);
|
|
_fade_out.fast_simple_add (len * 0.918981, 0.68595);
|
|
_fade_out.fast_simple_add (len * 0.976852, 0.22865);
|
|
_fade_out.fast_simple_add (len * 1, 0);
|
|
break;
|
|
|
|
case LogB:
|
|
_fade_out.fast_simple_add (len * 0, 1);
|
|
_fade_out.fast_simple_add (len * 0.080645, 0.730556);
|
|
_fade_out.fast_simple_add (len * 0.277778, 0.289256);
|
|
_fade_out.fast_simple_add (len * 0.470046, 0.152778);
|
|
_fade_out.fast_simple_add (len * 0.695853, 0.0694444);
|
|
_fade_out.fast_simple_add (len * 1, 0);
|
|
break;
|
|
|
|
case Linear:
|
|
_fade_out.fast_simple_add (len * 0, 1);
|
|
_fade_out.fast_simple_add (len * 1, 0);
|
|
break;
|
|
}
|
|
|
|
_fade_out.thaw ();
|
|
_fade_out_shape = shape;
|
|
|
|
send_change (FadeOutChanged);
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_fade_in_length (nframes_t len)
|
|
{
|
|
bool changed = _fade_in.extend_to (len);
|
|
|
|
if (changed) {
|
|
_flags = Flag (_flags & ~DefaultFadeIn);
|
|
send_change (FadeInChanged);
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_fade_out_length (nframes_t len)
|
|
{
|
|
bool changed = _fade_out.extend_to (len);
|
|
|
|
if (changed) {
|
|
_flags = Flag (_flags & ~DefaultFadeOut);
|
|
}
|
|
|
|
send_change (FadeOutChanged);
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_fade_in_active (bool yn)
|
|
{
|
|
if (yn == (_flags & FadeIn)) {
|
|
return;
|
|
}
|
|
if (yn) {
|
|
_flags = Flag (_flags|FadeIn);
|
|
} else {
|
|
_flags = Flag (_flags & ~FadeIn);
|
|
}
|
|
|
|
send_change (FadeInActiveChanged);
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_fade_out_active (bool yn)
|
|
{
|
|
if (yn == (_flags & FadeOut)) {
|
|
return;
|
|
}
|
|
if (yn) {
|
|
_flags = Flag (_flags | FadeOut);
|
|
} else {
|
|
_flags = Flag (_flags & ~FadeOut);
|
|
}
|
|
|
|
send_change (FadeOutActiveChanged);
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_default_fade_in ()
|
|
{
|
|
set_fade_in (Linear, 64);
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_default_fade_out ()
|
|
{
|
|
set_fade_out (Linear, 64);
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_default_fades ()
|
|
{
|
|
_fade_in_disabled = 0;
|
|
_fade_out_disabled = 0;
|
|
set_default_fade_in ();
|
|
set_default_fade_out ();
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_default_envelope ()
|
|
{
|
|
_envelope.freeze ();
|
|
_envelope.clear ();
|
|
_envelope.fast_simple_add (0, 1.0f);
|
|
_envelope.fast_simple_add (_length, 1.0f);
|
|
_envelope.thaw ();
|
|
}
|
|
|
|
void
|
|
AudioRegion::recompute_at_end ()
|
|
{
|
|
/* our length has changed. recompute a new final point by interpolating
|
|
based on the the existing curve.
|
|
*/
|
|
|
|
_envelope.freeze ();
|
|
_envelope.truncate_end (_length);
|
|
_envelope.set_max_xval (_length);
|
|
_envelope.thaw ();
|
|
|
|
if (_fade_in.back()->when > _length) {
|
|
_fade_in.extend_to (_length);
|
|
send_change (FadeInChanged);
|
|
}
|
|
|
|
if (_fade_out.back()->when > _length) {
|
|
_fade_out.extend_to (_length);
|
|
send_change (FadeOutChanged);
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioRegion::recompute_at_start ()
|
|
{
|
|
/* as above, but the shift was from the front */
|
|
|
|
_envelope.truncate_start (_length);
|
|
|
|
if (_fade_in.back()->when > _length) {
|
|
_fade_in.extend_to (_length);
|
|
send_change (FadeInChanged);
|
|
}
|
|
|
|
if (_fade_out.back()->when > _length) {
|
|
_fade_out.extend_to (_length);
|
|
send_change (FadeOutChanged);
|
|
}
|
|
}
|
|
|
|
int
|
|
AudioRegion::separate_by_channel (Session& session, vector<AudioRegion*>& v) const
|
|
{
|
|
SourceList srcs;
|
|
string new_name;
|
|
|
|
for (SourceList::const_iterator i = master_sources.begin(); i != master_sources.end(); ++i) {
|
|
|
|
srcs.clear ();
|
|
srcs.push_back (*i);
|
|
|
|
/* generate a new name */
|
|
|
|
if (session.region_name (new_name, _name)) {
|
|
return -1;
|
|
}
|
|
|
|
/* create a copy with just one source */
|
|
|
|
v.push_back (new AudioRegion (srcs, _start, _length, new_name, _layer, _flags));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
AudioRegion::source_deleted ()
|
|
{
|
|
sources.clear ();
|
|
drop_references ();
|
|
}
|
|
|
|
vector<string>
|
|
AudioRegion::master_source_names ()
|
|
{
|
|
SourceList::iterator i;
|
|
|
|
vector<string> names;
|
|
for (i = master_sources.begin(); i != master_sources.end(); ++i) {
|
|
names.push_back((*i)->name());
|
|
}
|
|
|
|
return names;
|
|
}
|
|
|
|
bool
|
|
AudioRegion::source_equivalent (boost::shared_ptr<const Region> o) const
|
|
{
|
|
boost::shared_ptr<const AudioRegion> other = boost::dynamic_pointer_cast<const AudioRegion>(o);
|
|
|
|
if (!other)
|
|
return false;
|
|
|
|
SourceList::const_iterator i;
|
|
SourceList::const_iterator io;
|
|
|
|
for (i = sources.begin(), io = other->sources.begin(); i != sources.end() && io != other->sources.end(); ++i, ++io) {
|
|
if ((*i)->id() != (*io)->id()) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
for (i = master_sources.begin(), io = other->master_sources.begin(); i != master_sources.end() && io != other->master_sources.end(); ++i, ++io) {
|
|
if ((*i)->id() != (*io)->id()) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
int
|
|
AudioRegion::apply (AudioFilter& filter)
|
|
{
|
|
boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (shared_from_this());
|
|
return filter.run (ar);
|
|
}
|
|
|
|
int
|
|
AudioRegion::exportme (Session& session, AudioExportSpecification& spec)
|
|
{
|
|
const nframes_t blocksize = 4096;
|
|
nframes_t to_read;
|
|
int status = -1;
|
|
|
|
spec.channels = sources.size();
|
|
|
|
if (spec.prepare (blocksize, session.frame_rate())) {
|
|
goto out;
|
|
}
|
|
|
|
spec.pos = 0;
|
|
spec.total_frames = _length;
|
|
|
|
while (spec.pos < _length && !spec.stop) {
|
|
|
|
|
|
/* step 1: interleave */
|
|
|
|
to_read = min (_length - spec.pos, blocksize);
|
|
|
|
if (spec.channels == 1) {
|
|
|
|
if (sources.front()->read (spec.dataF, _start + spec.pos, to_read) != to_read) {
|
|
goto out;
|
|
}
|
|
|
|
} else {
|
|
|
|
Sample buf[blocksize];
|
|
|
|
for (uint32_t chan = 0; chan < spec.channels; ++chan) {
|
|
|
|
if (sources[chan]->read (buf, _start + spec.pos, to_read) != to_read) {
|
|
goto out;
|
|
}
|
|
|
|
for (nframes_t x = 0; x < to_read; ++x) {
|
|
spec.dataF[chan+(x*spec.channels)] = buf[x];
|
|
}
|
|
}
|
|
}
|
|
|
|
if (spec.process (to_read)) {
|
|
goto out;
|
|
}
|
|
|
|
spec.pos += to_read;
|
|
spec.progress = (double) spec.pos /_length;
|
|
|
|
}
|
|
|
|
status = 0;
|
|
|
|
out:
|
|
spec.running = false;
|
|
spec.status = status;
|
|
spec.clear();
|
|
|
|
return status;
|
|
}
|
|
|
|
boost::shared_ptr<Region>
|
|
AudioRegion::get_parent() const
|
|
{
|
|
boost::shared_ptr<Playlist> pl (playlist());
|
|
|
|
if (pl) {
|
|
boost::shared_ptr<AudioRegion> ar;
|
|
boost::shared_ptr<AudioRegion const> grrr2 = boost::dynamic_pointer_cast<AudioRegion const> (shared_from_this());
|
|
|
|
if (grrr2 && (ar = pl->session().find_whole_file_parent (grrr2))) {
|
|
return boost::static_pointer_cast<Region> (ar);
|
|
}
|
|
}
|
|
|
|
return boost::shared_ptr<Region>();
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_scale_amplitude (gain_t g)
|
|
{
|
|
boost::shared_ptr<Playlist> pl (playlist());
|
|
|
|
_scale_amplitude = g;
|
|
|
|
/* tell the diskstream we're in */
|
|
|
|
if (pl) {
|
|
pl->Modified();
|
|
}
|
|
|
|
/* tell everybody else */
|
|
|
|
send_change (ScaleAmplitudeChanged);
|
|
}
|
|
|
|
void
|
|
AudioRegion::normalize_to (float target_dB)
|
|
{
|
|
const nframes_t blocksize = 64 * 1024;
|
|
Sample buf[blocksize];
|
|
nframes_t fpos;
|
|
nframes_t fend;
|
|
nframes_t to_read;
|
|
double maxamp = 0;
|
|
gain_t target = dB_to_coefficient (target_dB);
|
|
|
|
if (target == 1.0f) {
|
|
/* do not normalize to precisely 1.0 (0 dBFS), to avoid making it appear
|
|
that we may have clipped.
|
|
*/
|
|
target -= FLT_EPSILON;
|
|
}
|
|
|
|
fpos = _start;
|
|
fend = _start + _length;
|
|
|
|
/* first pass: find max amplitude */
|
|
|
|
while (fpos < fend) {
|
|
|
|
uint32_t n;
|
|
|
|
to_read = min (fend - fpos, blocksize);
|
|
|
|
for (n = 0; n < n_channels(); ++n) {
|
|
|
|
/* read it in */
|
|
|
|
if (source (n)->read (buf, fpos, to_read) != to_read) {
|
|
return;
|
|
}
|
|
|
|
maxamp = Session::compute_peak (buf, to_read, maxamp);
|
|
}
|
|
|
|
fpos += to_read;
|
|
};
|
|
|
|
if (maxamp == 0.0f) {
|
|
/* don't even try */
|
|
return;
|
|
}
|
|
|
|
if (maxamp == target) {
|
|
/* we can't do anything useful */
|
|
return;
|
|
}
|
|
|
|
/* compute scale factor */
|
|
|
|
_scale_amplitude = target/maxamp;
|
|
|
|
/* tell the diskstream we're in */
|
|
|
|
boost::shared_ptr<Playlist> pl (playlist());
|
|
|
|
if (pl) {
|
|
pl->Modified();
|
|
}
|
|
|
|
/* tell everybody else */
|
|
|
|
send_change (ScaleAmplitudeChanged);
|
|
}
|
|
|
|
void
|
|
AudioRegion::fade_in_changed ()
|
|
{
|
|
send_change (FadeInChanged);
|
|
}
|
|
|
|
void
|
|
AudioRegion::fade_out_changed ()
|
|
{
|
|
send_change (FadeOutChanged);
|
|
}
|
|
|
|
void
|
|
AudioRegion::envelope_changed ()
|
|
{
|
|
send_change (EnvelopeChanged);
|
|
}
|
|
|
|
void
|
|
AudioRegion::suspend_fade_in ()
|
|
{
|
|
if (++_fade_in_disabled == 1) {
|
|
set_fade_in_active (false);
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioRegion::resume_fade_in ()
|
|
{
|
|
if (_fade_in_disabled && --_fade_in_disabled == 0) {
|
|
set_fade_in_active (true);
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioRegion::suspend_fade_out ()
|
|
{
|
|
if (++_fade_out_disabled == 1) {
|
|
set_fade_out_active (false);
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioRegion::resume_fade_out ()
|
|
{
|
|
if (_fade_out_disabled && --_fade_out_disabled == 0) {
|
|
set_fade_out_active (true);
|
|
}
|
|
}
|
|
|
|
bool
|
|
AudioRegion::speed_mismatch (float sr) const
|
|
{
|
|
if (sources.empty()) {
|
|
/* impossible, but ... */
|
|
return false;
|
|
}
|
|
|
|
float fsr = sources.front()->sample_rate();
|
|
|
|
return fsr != sr;
|
|
}
|
|
|
|
void
|
|
AudioRegion::source_offset_changed ()
|
|
{
|
|
boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource>(sources.front());
|
|
|
|
if (afs && afs->destructive()) {
|
|
// set_start (source()->natural_position(), this);
|
|
set_position (source()->natural_position(), this);
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_playlist (boost::weak_ptr<Playlist> wpl)
|
|
{
|
|
boost::shared_ptr<Playlist> old_playlist = (_playlist.lock());
|
|
boost::shared_ptr<Playlist> pl (wpl.lock());
|
|
|
|
if (old_playlist == pl) {
|
|
return;
|
|
}
|
|
|
|
Region::set_playlist (wpl);
|
|
|
|
if (pl) {
|
|
if (old_playlist) {
|
|
for (SourceList::const_iterator i = sources.begin(); i != sources.end(); ++i) {
|
|
(*i)->remove_playlist (_playlist);
|
|
(*i)->add_playlist (pl);
|
|
}
|
|
} else {
|
|
for (SourceList::const_iterator i = sources.begin(); i != sources.end(); ++i) {
|
|
(*i)->add_playlist (pl);
|
|
}
|
|
}
|
|
} else {
|
|
if (old_playlist) {
|
|
for (SourceList::const_iterator i = sources.begin(); i != sources.end(); ++i) {
|
|
(*i)->remove_playlist (_playlist);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
extern "C" {
|
|
|
|
int region_read_peaks_from_c (void *arg, uint32_t npeaks, uint32_t start, uint32_t cnt, intptr_t data, uint32_t n_chan, double samples_per_unit)
|
|
{
|
|
return ((AudioRegion *) arg)->read_peaks ((PeakData *) data, (nframes_t) npeaks, (nframes_t) start, (nframes_t) cnt, n_chan,samples_per_unit);
|
|
}
|
|
|
|
uint32_t region_length_from_c (void *arg)
|
|
{
|
|
|
|
return ((AudioRegion *) arg)->length();
|
|
}
|
|
|
|
uint32_t sourcefile_length_from_c (void *arg, double zoom_factor)
|
|
{
|
|
return ( (AudioRegion *) arg)->source()->available_peaks (zoom_factor) ;
|
|
}
|
|
|
|
} /* extern "C" */
|