1757 lines
44 KiB
C++
1757 lines
44 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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*/
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#include <cmath>
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#include <climits>
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#include <cfloat>
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#include <algorithm>
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#include <set>
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#include <boost/scoped_array.hpp>
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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 <pbd/enumwriter.h>
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#include <pbd/convert.h>
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#include <pbd/localeguard.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/region_factory.h>
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#include <ardour/transient_detector.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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using namespace PBD;
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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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listen_to_my_sources ();
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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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listen_to_my_sources ();
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}
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AudioRegion::AudioRegion (const 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::const_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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listen_to_my_sources ();
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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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listen_to_my_sources ();
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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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_fade_in_disabled = 0;
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_fade_out_disabled = 0;
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listen_to_my_curves ();
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listen_to_my_sources ();
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}
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AudioRegion::AudioRegion (boost::shared_ptr<const AudioRegion> other, const SourceList& srcs,
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nframes_t length, const string& name, layer_t layer, Flag flags)
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: Region (other, 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)
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{
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/* make-a-sort-of-copy-with-different-sources constructor (used by audio filter) */
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set<boost::shared_ptr<AudioSource> > unique_srcs;
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for (SourceList::const_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 = other->_scale_amplitude;
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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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listen_to_my_sources ();
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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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listen_to_my_sources ();
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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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listen_to_my_sources ();
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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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for (SourceList::const_iterator i = master_sources.begin(); i != master_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_sources ()
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{
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for (SourceList::const_iterator i = sources.begin(); i != sources.end(); ++i) {
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(*i)->AnalysisChanged.connect (mem_fun (*this, &AudioRegion::invalidate_transients));
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}
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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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nframes_t maxlen = 0;
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for (uint32_t n=0; n < sources.size(); ++n) {
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maxlen = max (maxlen, sources[n]->length() - _start);
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}
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len = min (len, maxlen);
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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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nframes_t maxlen = 0;
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for (uint32_t n=0; n < sources.size(); ++n) {
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maxlen = max (maxlen, sources[n]->length() - new_start);
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}
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new_length = min (new_length, maxlen);
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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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nframes64_t
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AudioRegion::read (Sample* buf, nframes64_t timeline_position, nframes64_t cnt, int channel) const
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{
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/* raw read, no fades, no gain, nada */
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|
return _read_at (sources, _length, buf, 0, 0, _position + timeline_position, cnt, channel, 0, 0, ReadOps (0));
|
|
}
|
|
|
|
nframes_t
|
|
AudioRegion::read_at (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, nframes_t file_position,
|
|
nframes_t cnt,
|
|
uint32_t chan_n, nframes_t read_frames, nframes_t skip_frames) const
|
|
{
|
|
/* regular diskstream/butler read complete with fades etc */
|
|
return _read_at (sources, _length, buf, mixdown_buffer, gain_buffer, file_position, cnt,
|
|
chan_n, read_frames, skip_frames, ReadOps (~0));
|
|
}
|
|
|
|
nframes_t
|
|
AudioRegion::master_read_at (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, nframes_t position,
|
|
nframes_t cnt, uint32_t chan_n) const
|
|
{
|
|
/* do not read gain/scaling/fades and do not count this disk i/o in statistics */
|
|
|
|
return _read_at (master_sources, master_sources.front()->length(), buf, mixdown_buffer,
|
|
gain_buffer, position, cnt, chan_n, 0, 0, ReadOps (0));
|
|
}
|
|
|
|
nframes_t
|
|
AudioRegion::_read_at (const SourceList& srcs, nframes_t limit,
|
|
Sample *buf, Sample *mixdown_buffer, float *gain_buffer,
|
|
nframes_t position, nframes_t cnt,
|
|
uint32_t chan_n,
|
|
nframes_t read_frames,
|
|
nframes_t skip_frames,
|
|
ReadOps rops) const
|
|
{
|
|
nframes_t internal_offset;
|
|
nframes_t buf_offset;
|
|
nframes_t to_read;
|
|
bool raw = (rops == ReadOpsNone);
|
|
|
|
if (n_channels() == 0) {
|
|
return 0;
|
|
}
|
|
|
|
if (muted() && !raw) {
|
|
return 0; /* read nothing */
|
|
}
|
|
|
|
/* precondition: caller has verified that we cover the desired section */
|
|
|
|
if (position < _position) {
|
|
internal_offset = 0;
|
|
buf_offset = _position - position;
|
|
cnt -= buf_offset;
|
|
} else {
|
|
internal_offset = position - _position;
|
|
buf_offset = 0;
|
|
}
|
|
|
|
if (internal_offset >= limit) {
|
|
return 0; /* read nothing */
|
|
}
|
|
|
|
if ((to_read = min (cnt, limit - internal_offset)) == 0) {
|
|
return 0; /* read nothing */
|
|
}
|
|
|
|
if (opaque() || raw) {
|
|
/* overwrite whatever is there */
|
|
mixdown_buffer = buf + buf_offset;
|
|
} else {
|
|
mixdown_buffer += buf_offset;
|
|
}
|
|
|
|
if (rops & ReadOpsCount) {
|
|
_read_data_count = 0;
|
|
}
|
|
|
|
if (chan_n < n_channels()) {
|
|
|
|
if (srcs[chan_n]->read (mixdown_buffer, _start + internal_offset, to_read) != to_read) {
|
|
return 0; /* "read nothing" */
|
|
}
|
|
|
|
if (rops & ReadOpsCount) {
|
|
_read_data_count += srcs[chan_n]->read_data_count();
|
|
}
|
|
|
|
} else {
|
|
|
|
if (Config->get_replicate_missing_region_channels()) {
|
|
/* track is N-channel, this region has less channels, so use a relevant channel
|
|
*/
|
|
|
|
uint32_t channel = n_channels() % chan_n;
|
|
|
|
if (srcs[channel]->read (mixdown_buffer, _start + internal_offset, to_read) != to_read) {
|
|
return 0; /* "read nothing" */
|
|
}
|
|
|
|
/* adjust read data count appropriately since this was a duplicate read */
|
|
srcs[channel]->dec_read_data_count (to_read);
|
|
|
|
} else {
|
|
/* region has no data for requested channel, so make it silent */
|
|
memset (mixdown_buffer, 0, to_read * sizeof (Sample));
|
|
}
|
|
}
|
|
|
|
if (rops & ReadOpsFades) {
|
|
|
|
/* fade in */
|
|
|
|
if ((_flags & FadeIn) && Config->get_use_region_fades()) {
|
|
|
|
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 fi_limit;
|
|
|
|
fi_limit = min (to_read, fade_in_length - internal_offset);
|
|
|
|
_fade_in.get_vector (internal_offset, internal_offset+fi_limit, gain_buffer, fi_limit);
|
|
|
|
for (nframes_t n = 0; n < fi_limit; ++n) {
|
|
mixdown_buffer[n] *= gain_buffer[n];
|
|
}
|
|
}
|
|
}
|
|
|
|
/* fade out */
|
|
|
|
if ((_flags & FadeOut) && Config->get_use_region_fades()) {
|
|
|
|
/* see if some part of this read is within the fade out */
|
|
|
|
/* ................. >| REGION
|
|
limit
|
|
|
|
{ } FADE
|
|
fade_out_length
|
|
^
|
|
limit - fade_out_length
|
|
|--------------|
|
|
^internal_offset
|
|
^internal_offset + to_read
|
|
|
|
we need the intersection of [internal_offset,internal_offset+to_read] with
|
|
[limit - fade_out_length, limit]
|
|
|
|
*/
|
|
|
|
|
|
nframes_t fade_out_length = (nframes_t) _fade_out.back()->when;
|
|
nframes_t fade_interval_start = max(internal_offset, limit-fade_out_length);
|
|
nframes_t fade_interval_end = min(internal_offset + to_read, limit);
|
|
|
|
if (fade_interval_end > fade_interval_start) {
|
|
/* (part of the) the fade out is in this buffer */
|
|
|
|
nframes_t fo_limit = fade_interval_end - fade_interval_start;
|
|
nframes_t curve_offset = fade_interval_start - (limit-fade_out_length);
|
|
nframes_t fade_offset = fade_interval_start - internal_offset;
|
|
|
|
_fade_out.get_vector (curve_offset,curve_offset+fo_limit, gain_buffer, fo_limit);
|
|
|
|
for (nframes_t n = 0, m = fade_offset; n < fo_limit; ++n, ++m) {
|
|
mixdown_buffer[m] *= gain_buffer[n];
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
/* Regular gain curves and scaling */
|
|
|
|
if ((rops & ReadOpsOwnAutomation) && envelope_active()) {
|
|
_envelope.get_vector (internal_offset, internal_offset + to_read, gain_buffer, to_read);
|
|
|
|
if ((rops & ReadOpsOwnScaling) && _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 ((rops & ReadOpsOwnScaling) && _scale_amplitude != 1.0f) {
|
|
Session::apply_gain_to_buffer (mixdown_buffer, to_read, _scale_amplitude);
|
|
}
|
|
|
|
if (!opaque() && (buf != mixdown_buffer)) {
|
|
|
|
/* 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"));
|
|
|
|
node.add_property ("flags", enum_2_string (_flags));
|
|
|
|
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"), (_flags & FadeIn) ? X_("yes") : X_("no"));
|
|
|
|
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"), (_flags & FadeOut) ? X_("yes") : X_("no"));
|
|
}
|
|
|
|
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");
|
|
}
|
|
|
|
for (uint32_t n=0; n < master_sources.size(); ++n) {
|
|
snprintf (buf2, sizeof(buf2), "master-source-%d", n);
|
|
master_sources[n]->id().print (buf, sizeof (buf));
|
|
node.add_property (buf2, buf);
|
|
}
|
|
|
|
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 (string_2_enum (prop->value(), _flags));
|
|
|
|
//_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());
|
|
what_changed = Change (what_changed|ScaleAmplitudeChanged);
|
|
} 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) {
|
|
set_default_fade_in ();
|
|
} else {
|
|
XMLNode* grandchild = child->child ("AutomationList");
|
|
if (grandchild) {
|
|
_fade_in.set_state (*grandchild);
|
|
}
|
|
}
|
|
|
|
if ((prop = child->property ("active")) != 0) {
|
|
if (string_is_affirmative (prop->value())) {
|
|
set_fade_in_active (true);
|
|
} else {
|
|
set_fade_in_active (false);
|
|
}
|
|
}
|
|
|
|
} else if (child->name() == "FadeOut") {
|
|
|
|
_fade_out.clear ();
|
|
|
|
if ((prop = child->property ("default")) != 0 || (prop = child->property ("steepness")) != 0) {
|
|
set_default_fade_out ();
|
|
} else {
|
|
XMLNode* grandchild = child->child ("AutomationList");
|
|
if (grandchild) {
|
|
_fade_out.set_state (*grandchild);
|
|
}
|
|
}
|
|
|
|
if ((prop = child->property ("active")) != 0) {
|
|
if (string_is_affirmative (prop->value())) {
|
|
set_fade_out_active (true);
|
|
} else {
|
|
set_fade_out_active (false);
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
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)
|
|
{
|
|
if (len > _length) {
|
|
len = _length - 1;
|
|
}
|
|
|
|
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)
|
|
{
|
|
if (len > _length) {
|
|
len = _length - 1;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
bool
|
|
AudioRegion::fade_in_is_default () const
|
|
{
|
|
return _fade_in_shape == Linear && _fade_in.back()->when == 64;
|
|
}
|
|
|
|
bool
|
|
AudioRegion::fade_out_is_default () const
|
|
{
|
|
return _fade_out_shape == Linear && _fade_out.back()->when == 64;
|
|
}
|
|
|
|
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 (_flags & LeftOfSplit) {
|
|
set_default_fade_out ();
|
|
_flags = Flag (_flags & ~Region::LeftOfSplit);
|
|
} else if (_fade_out.back()->when > _length) {
|
|
_fade_out.extend_to (_length);
|
|
send_change (FadeOutChanged);
|
|
}
|
|
|
|
if (_fade_in.back()->when > _length) {
|
|
_fade_in.extend_to (_length);
|
|
send_change (FadeInChanged);
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioRegion::recompute_at_start ()
|
|
{
|
|
/* as above, but the shift was from the front */
|
|
|
|
_envelope.truncate_start (_length);
|
|
|
|
if (_flags & RightOfSplit) {
|
|
set_default_fade_in ();
|
|
_flags = Flag (_flags & ~Region::RightOfSplit);
|
|
} else 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<boost::shared_ptr<AudioRegion> >& v) const
|
|
{
|
|
SourceList srcs;
|
|
string new_name;
|
|
int n;
|
|
|
|
if (sources.size() < 2) {
|
|
return 0;
|
|
}
|
|
|
|
n = 0;
|
|
|
|
for (SourceList::const_iterator i = sources.begin(); i != sources.end(); ++i) {
|
|
|
|
srcs.clear ();
|
|
srcs.push_back (*i);
|
|
|
|
new_name = _name;
|
|
|
|
if (sources.size() == 2) {
|
|
if (n == 0) {
|
|
new_name += "-L";
|
|
} else {
|
|
new_name += "-R";
|
|
}
|
|
} else {
|
|
new_name += '-';
|
|
new_name += ('0' + n + 1);
|
|
}
|
|
|
|
/* create a copy with just one source. prevent if from being thought of as "whole file" even if
|
|
it covers the entire source file(s).
|
|
*/
|
|
|
|
Flag f = Flag (_flags & ~WholeFile);
|
|
|
|
boost::shared_ptr<Region> r = RegionFactory::create (srcs, _start, _length, new_name, _layer, f);
|
|
boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (r);
|
|
|
|
v.push_back (ar);
|
|
|
|
++n;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
void
|
|
AudioRegion::set_master_sources (const SourceList& srcs)
|
|
{
|
|
master_sources = srcs;
|
|
}
|
|
|
|
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;
|
|
|
|
if ((sources.size() != other->sources.size()) ||
|
|
(master_sources.size() != other->master_sources.size())) {
|
|
return false;
|
|
}
|
|
|
|
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;
|
|
nframes_t nread;
|
|
int status = -1;
|
|
boost::scoped_array<Sample> gain_buffer (new Sample[blocksize]);
|
|
|
|
spec.channels = sources.size();
|
|
|
|
if (spec.prepare (blocksize, session.frame_rate())) {
|
|
goto out;
|
|
}
|
|
|
|
/* the ::read_at() methods expect a starting position that is absolute, not relative
|
|
to our bounds. So we begin at our _position on the timeline ...
|
|
*/
|
|
|
|
spec.pos = _position;
|
|
spec.total_frames = _length;
|
|
nread = 0;
|
|
|
|
while (spec.pos < last_frame() && !spec.stop) {
|
|
|
|
/* step 1: interleave */
|
|
|
|
to_read = min (_length - nread, blocksize);
|
|
|
|
if (spec.channels == 1) {
|
|
|
|
if (read_at (spec.dataF, spec.dataF, gain_buffer.get(), spec.pos, to_read) != to_read) {
|
|
goto out;
|
|
}
|
|
|
|
} else {
|
|
|
|
boost::scoped_array<Sample> buf (new Sample[blocksize]);
|
|
|
|
for (uint32_t chan = 0; chan < spec.channels; ++chan) {
|
|
|
|
if (read_at (buf.get(), buf.get(), gain_buffer.get(), spec.pos, to_read, chan) != 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;
|
|
nread += to_read;
|
|
spec.progress = (double) nread /_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;
|
|
boost::scoped_array<Sample> buf (new Sample[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.get(), fpos, to_read) != to_read) {
|
|
return;
|
|
}
|
|
|
|
maxamp = Session::compute_peak (buf.get(), 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) {
|
|
if (fade_in_is_default()) {
|
|
set_fade_in_active (false);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioRegion::resume_fade_in ()
|
|
{
|
|
if (--_fade_in_disabled == 0 && _fade_in_disabled) {
|
|
set_fade_in_active (true);
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioRegion::suspend_fade_out ()
|
|
{
|
|
if (++_fade_out_disabled == 1) {
|
|
if (fade_out_is_default()) {
|
|
set_fade_out_active (false);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioRegion::resume_fade_out ()
|
|
{
|
|
if (--_fade_out_disabled == 0 &&_fade_out_disabled) {
|
|
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 ()
|
|
{
|
|
/* XXX this fixes a crash that should not occur. It does occur
|
|
becauses regions are not being deleted when a session
|
|
is unloaded. That bug must be fixed.
|
|
*/
|
|
|
|
if (sources.empty()) {
|
|
return;
|
|
}
|
|
|
|
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);
|
|
}
|
|
for (SourceList::const_iterator i = master_sources.begin(); i != master_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);
|
|
}
|
|
for (SourceList::const_iterator i = master_sources.begin(); i != master_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 (old_playlist);
|
|
}
|
|
for (SourceList::const_iterator i = master_sources.begin(); i != master_sources.end(); ++i) {
|
|
(*i)->remove_playlist (old_playlist);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
AudioRegion::get_transients (AnalysisFeatureList& results, bool force_new)
|
|
{
|
|
boost::shared_ptr<Playlist> pl = playlist();
|
|
|
|
if (!pl) {
|
|
return -1;
|
|
}
|
|
|
|
if (valid_transients && !force_new) {
|
|
results = _transients;
|
|
return 0;
|
|
}
|
|
|
|
SourceList::iterator s;
|
|
|
|
for (s = sources.begin() ; s != sources.end(); ++s) {
|
|
if (!(*s)->has_been_analysed()) {
|
|
cerr << "For " << name() << " source " << (*s)->name() << " has not been analyzed\n";
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (s == sources.end()) {
|
|
/* all sources are analyzed, merge data from each one */
|
|
|
|
for (s = sources.begin() ; s != sources.end(); ++s) {
|
|
|
|
/* find the set of transients within the bounds of this region */
|
|
|
|
AnalysisFeatureList::iterator low = lower_bound ((*s)->transients.begin(),
|
|
(*s)->transients.end(),
|
|
_start);
|
|
|
|
AnalysisFeatureList::iterator high = upper_bound ((*s)->transients.begin(),
|
|
(*s)->transients.end(),
|
|
_start + _length);
|
|
|
|
/* and add them */
|
|
|
|
results.insert (results.end(), low, high);
|
|
}
|
|
|
|
TransientDetector::cleanup_transients (results, pl->session().frame_rate(), 3.0);
|
|
|
|
/* translate all transients to current position */
|
|
|
|
for (AnalysisFeatureList::iterator x = results.begin(); x != results.end(); ++x) {
|
|
(*x) -= _start;
|
|
(*x) += _position;
|
|
}
|
|
|
|
_transients = results;
|
|
valid_transients = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* no existing/complete transient info */
|
|
|
|
static bool analyse_dialog_shown = false;
|
|
if (!Config->get_auto_analyse_audio()) {
|
|
if ( !analyse_dialog_shown ) {
|
|
pl->session().Dialog (_("\
|
|
You have requested an operation that requires audio analysis.\n\n\
|
|
You currently have \"auto-analyse-audio\" disabled, which means\n\
|
|
that transient data must be generated every time it is required.\n\n\
|
|
If you are doing work that will require transient data on a\n\
|
|
regular basis, you should probably enable \"auto-analyse-audio\"\n\
|
|
then quit ardour and restart.\n\n\
|
|
This dialog will not display again. But you may notice a slight delay\n\
|
|
in this and future transient-detection operations.\n\
|
|
"));
|
|
analyse_dialog_shown = true; //only show this dialog once
|
|
}
|
|
}
|
|
|
|
TransientDetector t (pl->session().frame_rate());
|
|
bool existing_results = !results.empty();
|
|
|
|
_transients.clear ();
|
|
valid_transients = false;
|
|
|
|
for (uint32_t i = 0; i < n_channels(); ++i) {
|
|
|
|
AnalysisFeatureList these_results;
|
|
|
|
t.reset ();
|
|
|
|
if (t.run ("", this, i, these_results)) {
|
|
return -1;
|
|
}
|
|
|
|
/* translate all transients to give absolute position */
|
|
|
|
for (AnalysisFeatureList::iterator i = these_results.begin(); i != these_results.end(); ++i) {
|
|
(*i) += _position;
|
|
}
|
|
|
|
/* merge */
|
|
|
|
_transients.insert (_transients.end(), these_results.begin(), these_results.end());
|
|
}
|
|
|
|
if (!results.empty()) {
|
|
if (existing_results) {
|
|
|
|
/* merge our transients into the existing ones, then clean up
|
|
those.
|
|
*/
|
|
|
|
results.insert (results.end(), _transients.begin(), _transients.end());
|
|
TransientDetector::cleanup_transients (results, pl->session().frame_rate(), 3.0);
|
|
}
|
|
|
|
/* make sure ours are clean too */
|
|
|
|
TransientDetector::cleanup_transients (_transients, pl->session().frame_rate(), 3.0);
|
|
|
|
} else {
|
|
|
|
TransientDetector::cleanup_transients (_transients, pl->session().frame_rate(), 3.0);
|
|
results = _transients;
|
|
}
|
|
|
|
valid_transients = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
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" */
|