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livetrax/libs/ardour/export_format_manager.cc
Paul Davis 9a4fbfcdfe add 8kHz as an available export format sample rate
git-svn-id: svn://localhost/ardour2/branches/3.0@13214 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-10-08 19:45:25 +00:00

797 lines
22 KiB
C++

/*
Copyright (C) 2008 Paul Davis
Author: Sakari Bergen
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "ardour/export_format_manager.h"
#include "ardour/export_format_specification.h"
#include "ardour/export_format_compatibility.h"
#include "i18n.h"
using std::string;
namespace ARDOUR
{
ExportFormatManager::ExportFormatManager (ExportFormatSpecPtr specification) :
pending_selection_change (false),
universal_set (new ExportFormatBase ())
{
current_selection = specification;
init_compatibilities ();
init_qualities ();
init_formats ();
init_sample_rates ();
prev_description = current_selection->description();
}
ExportFormatManager::~ExportFormatManager ()
{
}
void
ExportFormatManager::init_compatibilities ()
{
ExportFormatCompatibilityPtr c_ptr;
c_ptr.reset (new ExportFormatCompatibility (_("CD")));
c_ptr->add_sample_rate (ExportFormatBase::SR_44_1);
c_ptr->add_format_id (ExportFormatBase::F_WAV);
c_ptr->add_format_id (ExportFormatBase::F_AIFF);
c_ptr->add_quality (ExportFormatBase::Q_LosslessLinear);
c_ptr->add_sample_format (ExportFormatBase::SF_16);
c_ptr->add_endianness (ExportFormatBase::E_FileDefault);
add_compatibility (c_ptr);
c_ptr.reset (new ExportFormatCompatibility (_("DVD-A")));
c_ptr->add_sample_rate (ExportFormatBase::SR_44_1);
c_ptr->add_sample_rate (ExportFormatBase::SR_48);
c_ptr->add_sample_rate (ExportFormatBase::SR_88_2);
c_ptr->add_sample_rate (ExportFormatBase::SR_96);
c_ptr->add_sample_rate (ExportFormatBase::SR_192);
c_ptr->add_format_id (ExportFormatBase::F_WAV);
c_ptr->add_format_id (ExportFormatBase::F_AIFF);
c_ptr->add_quality (ExportFormatBase::Q_LosslessLinear);
c_ptr->add_sample_format (ExportFormatBase::SF_16);
c_ptr->add_sample_format (ExportFormatBase::SF_24);
c_ptr->add_endianness (ExportFormatBase::E_FileDefault);
add_compatibility (c_ptr);
c_ptr.reset (new ExportFormatCompatibility (_("iPod")));
c_ptr->add_sample_rate (ExportFormatBase::SR_44_1);
c_ptr->add_sample_rate (ExportFormatBase::SR_48);
c_ptr->add_format_id (ExportFormatBase::F_WAV);
c_ptr->add_format_id (ExportFormatBase::F_AIFF);
c_ptr->add_quality (ExportFormatBase::Q_LosslessLinear);
c_ptr->add_sample_format (ExportFormatBase::SF_16);
c_ptr->add_sample_format (ExportFormatBase::SF_24);
c_ptr->add_endianness (ExportFormatBase::E_FileDefault);
add_compatibility (c_ptr);
c_ptr.reset (new ExportFormatCompatibility (_("Something else")));
c_ptr->add_sample_rate (ExportFormatBase::SR_44_1);
c_ptr->add_sample_rate (ExportFormatBase::SR_48);
c_ptr->add_format_id (ExportFormatBase::F_WAV);
c_ptr->add_format_id (ExportFormatBase::F_AIFF);
c_ptr->add_format_id (ExportFormatBase::F_AU);
c_ptr->add_format_id (ExportFormatBase::F_FLAC);
c_ptr->add_quality (ExportFormatBase::Q_LosslessLinear);
c_ptr->add_quality (ExportFormatBase::Q_LosslessCompression);
c_ptr->add_sample_format (ExportFormatBase::SF_16);
c_ptr->add_sample_format (ExportFormatBase::SF_24);
c_ptr->add_sample_format (ExportFormatBase::SF_32);
c_ptr->add_endianness (ExportFormatBase::E_FileDefault);
add_compatibility (c_ptr);
}
void
ExportFormatManager::init_qualities ()
{
add_quality (QualityPtr (new QualityState (ExportFormatBase::Q_Any, _("Any"))));
add_quality (QualityPtr (new QualityState (ExportFormatBase::Q_LosslessLinear, _("Lossless (linear PCM)"))));
add_quality (QualityPtr (new QualityState (ExportFormatBase::Q_LossyCompression, _("Lossy compression"))));
add_quality (QualityPtr (new QualityState (ExportFormatBase::Q_LosslessCompression, _("Lossless compression"))));
}
void
ExportFormatManager::init_formats ()
{
ExportFormatPtr f_ptr;
ExportFormatLinear * fl_ptr;
f_ptr.reset (fl_ptr = new ExportFormatLinear ("AIFF", ExportFormatBase::F_AIFF));
fl_ptr->add_sample_format (ExportFormatBase::SF_U8);
fl_ptr->add_sample_format (ExportFormatBase::SF_8);
fl_ptr->add_sample_format (ExportFormatBase::SF_16);
fl_ptr->add_sample_format (ExportFormatBase::SF_24);
fl_ptr->add_sample_format (ExportFormatBase::SF_32);
fl_ptr->add_sample_format (ExportFormatBase::SF_Float);
fl_ptr->add_sample_format (ExportFormatBase::SF_Double);
fl_ptr->add_endianness (ExportFormatBase::E_Big);
fl_ptr->set_default_sample_format (ExportFormatBase::SF_16);
fl_ptr->set_extension ("aiff");
add_format (f_ptr);
f_ptr.reset (fl_ptr = new ExportFormatLinear ("AU", ExportFormatBase::F_AU));
fl_ptr->add_sample_format (ExportFormatBase::SF_8);
fl_ptr->add_sample_format (ExportFormatBase::SF_16);
fl_ptr->add_sample_format (ExportFormatBase::SF_24);
fl_ptr->add_sample_format (ExportFormatBase::SF_32);
fl_ptr->add_sample_format (ExportFormatBase::SF_Float);
fl_ptr->add_sample_format (ExportFormatBase::SF_Double);
fl_ptr->set_default_sample_format (ExportFormatBase::SF_16);
fl_ptr->set_extension ("au");
add_format (f_ptr);
f_ptr.reset (new ExportFormatBWF ());
add_format (f_ptr);
f_ptr.reset (fl_ptr = new ExportFormatLinear ("IRCAM", ExportFormatBase::F_IRCAM));
fl_ptr->add_sample_format (ExportFormatBase::SF_16);
fl_ptr->add_sample_format (ExportFormatBase::SF_24);
fl_ptr->add_sample_format (ExportFormatBase::SF_32);
fl_ptr->add_sample_format (ExportFormatBase::SF_Float);
fl_ptr->set_default_sample_format (ExportFormatBase::SF_24);
fl_ptr->set_extension ("sf");
add_format (f_ptr);
f_ptr.reset (fl_ptr = new ExportFormatLinear ("WAV", ExportFormatBase::F_WAV));
fl_ptr->add_sample_format (ExportFormatBase::SF_U8);
fl_ptr->add_sample_format (ExportFormatBase::SF_16);
fl_ptr->add_sample_format (ExportFormatBase::SF_24);
fl_ptr->add_sample_format (ExportFormatBase::SF_32);
fl_ptr->add_sample_format (ExportFormatBase::SF_Float);
fl_ptr->add_sample_format (ExportFormatBase::SF_Double);
fl_ptr->add_endianness (ExportFormatBase::E_Little);
fl_ptr->set_default_sample_format (ExportFormatBase::SF_16);
fl_ptr->set_extension ("wav");
add_format (f_ptr);
f_ptr.reset (fl_ptr = new ExportFormatLinear ("W64", ExportFormatBase::F_W64));
fl_ptr->add_sample_format (ExportFormatBase::SF_U8);
fl_ptr->add_sample_format (ExportFormatBase::SF_16);
fl_ptr->add_sample_format (ExportFormatBase::SF_24);
fl_ptr->add_sample_format (ExportFormatBase::SF_32);
fl_ptr->add_sample_format (ExportFormatBase::SF_Float);
fl_ptr->add_sample_format (ExportFormatBase::SF_Double);
fl_ptr->set_default_sample_format (ExportFormatBase::SF_Double);
fl_ptr->set_extension ("w64");
add_format (f_ptr);
f_ptr.reset (fl_ptr = new ExportFormatLinear ("RAW", ExportFormatBase::F_RAW));
fl_ptr->add_sample_format (ExportFormatBase::SF_U8);
fl_ptr->add_sample_format (ExportFormatBase::SF_8);
fl_ptr->add_sample_format (ExportFormatBase::SF_16);
fl_ptr->add_sample_format (ExportFormatBase::SF_24);
fl_ptr->add_sample_format (ExportFormatBase::SF_32);
fl_ptr->add_sample_format (ExportFormatBase::SF_Float);
fl_ptr->add_sample_format (ExportFormatBase::SF_Double);
fl_ptr->set_default_sample_format (ExportFormatBase::SF_Float);
fl_ptr->set_extension ("raw");
add_format (f_ptr);
try {
f_ptr.reset (new ExportFormatOggVorbis ());
add_format (f_ptr);
} catch (ExportFormatIncompatible & e) {}
try {
f_ptr.reset (new ExportFormatFLAC ());
add_format (f_ptr);
} catch (ExportFormatIncompatible & e) {}
}
void
ExportFormatManager::init_sample_rates ()
{
add_sample_rate (SampleRatePtr (new SampleRateState (ExportFormatBase::SR_Session, _("Session rate"))));
add_sample_rate (SampleRatePtr (new SampleRateState (ExportFormatBase::SR_8, "8 kHz")));
add_sample_rate (SampleRatePtr (new SampleRateState (ExportFormatBase::SR_22_05, "22,05 kHz")));
add_sample_rate (SampleRatePtr (new SampleRateState (ExportFormatBase::SR_44_1, "44,1 kHz")));
add_sample_rate (SampleRatePtr (new SampleRateState (ExportFormatBase::SR_48, "48 kHz")));
add_sample_rate (SampleRatePtr (new SampleRateState (ExportFormatBase::SR_88_2, "88,2 kHz")));
add_sample_rate (SampleRatePtr (new SampleRateState (ExportFormatBase::SR_96, "96 kHz")));
add_sample_rate (SampleRatePtr (new SampleRateState (ExportFormatBase::SR_192, "192 kHz")));
}
void
ExportFormatManager::add_compatibility (ExportFormatCompatibilityPtr ptr)
{
compatibilities.push_back (ptr);
ptr->SelectChanged.connect_same_thread (*this,
boost::bind (&ExportFormatManager::change_compatibility_selection,
this, _1, WeakExportFormatCompatibilityPtr (ptr)));
}
void
ExportFormatManager::add_quality (QualityPtr ptr)
{
ptr->SelectChanged.connect_same_thread (*this, boost::bind (&ExportFormatManager::change_quality_selection, this, _1, WeakQualityPtr (ptr)));
qualities.push_back (ptr);
}
void
ExportFormatManager::add_format (ExportFormatPtr ptr)
{
formats.push_back (ptr);
ptr->SelectChanged.connect_same_thread (*this, boost::bind (&ExportFormatManager::change_format_selection, this, _1, WeakExportFormatPtr (ptr)));
universal_set = universal_set->get_union (*ptr);
/* Encoding options */
boost::shared_ptr<HasSampleFormat> hsf;
if ((hsf = boost::dynamic_pointer_cast<HasSampleFormat> (ptr))) {
hsf->SampleFormatSelectChanged.connect_same_thread (*this, boost::bind (&ExportFormatManager::change_sample_format_selection, this, _1, _2));
hsf->DitherTypeSelectChanged.connect_same_thread (*this, boost::bind (&ExportFormatManager::change_dither_type_selection, this, _1, _2));
}
}
void
ExportFormatManager::add_sample_rate (SampleRatePtr ptr)
{
ptr->SelectChanged.connect_same_thread (*this, boost::bind (&ExportFormatManager::change_sample_rate_selection, this, _1, WeakSampleRatePtr (ptr)));
sample_rates.push_back (ptr);
}
void
ExportFormatManager::set_name (string name)
{
current_selection->set_name (name);
check_for_description_change ();
}
void
ExportFormatManager::select_src_quality (ExportFormatBase::SRCQuality value)
{
current_selection->set_src_quality (value);
check_for_description_change ();
}
void
ExportFormatManager::select_with_cue (bool value)
{
current_selection->set_with_cue (value);
check_for_description_change ();
}
void
ExportFormatManager::select_with_toc (bool value)
{
current_selection->set_with_toc (value);
check_for_description_change ();
}
void
ExportFormatManager::select_trim_beginning (bool value)
{
current_selection->set_trim_beginning (value);
check_for_description_change ();
}
void
ExportFormatManager::select_silence_beginning (AnyTime const & time)
{
current_selection->set_silence_beginning (time);
check_for_description_change ();
}
void
ExportFormatManager::select_trim_end (bool value)
{
current_selection->set_trim_end (value);
check_for_description_change ();
}
void
ExportFormatManager::select_silence_end (AnyTime const & time)
{
current_selection->set_silence_end (time);
check_for_description_change ();
}
void
ExportFormatManager::select_normalize (bool value)
{
current_selection->set_normalize (value);
check_for_description_change ();
}
void
ExportFormatManager::select_normalize_target (float value)
{
current_selection->set_normalize_target (value);
check_for_description_change ();
}
void
ExportFormatManager::select_tagging (bool tag)
{
current_selection->set_tag (tag);
check_for_description_change ();
}
void
ExportFormatManager::change_compatibility_selection (bool select, WeakExportFormatCompatibilityPtr const & compat)
{
bool do_selection_changed = !pending_selection_change;
if (!pending_selection_change) {
pending_selection_change = true;
}
ExportFormatCompatibilityPtr ptr = compat.lock();
if (ptr && select) {
select_compatibility (ptr);
}
if (do_selection_changed) {
selection_changed ();
}
}
void
ExportFormatManager::change_quality_selection (bool select, WeakQualityPtr const & quality)
{
QualityPtr ptr = quality.lock ();
if (!ptr) {
return;
}
if (select) {
select_quality (ptr);
} else if (ptr->quality == current_selection->quality()) {
ptr.reset();
select_quality (ptr);
}
}
void
ExportFormatManager::change_format_selection (bool select, WeakExportFormatPtr const & format)
{
ExportFormatPtr ptr = format.lock();
if (!ptr) {
return;
}
if (select) {
select_format (ptr);
} else if (ptr->get_format_id() == current_selection->format_id()) {
ptr.reset();
select_format (ptr);
}
}
void
ExportFormatManager::change_sample_rate_selection (bool select, WeakSampleRatePtr const & rate)
{
SampleRatePtr ptr = rate.lock();
if (!ptr) {
return;
}
if (select) {
select_sample_rate (ptr);
} else if (ptr->rate == current_selection->sample_rate()) {
ptr.reset();
select_sample_rate (ptr);
}
}
void
ExportFormatManager::change_sample_format_selection (bool select, WeakSampleFormatPtr const & format)
{
SampleFormatPtr ptr = format.lock();
if (!ptr) {
return;
}
if (select) {
select_sample_format (ptr);
} else if (ptr->format == current_selection->sample_format()) {
ptr.reset();
select_sample_format (ptr);
}
}
void
ExportFormatManager::change_dither_type_selection (bool select, WeakDitherTypePtr const & type)
{
DitherTypePtr ptr = type.lock();
if (!ptr) {
return;
}
if (select) {
select_dither_type (ptr);
} else if (ptr->type == current_selection->dither_type()) {
ptr.reset();
select_dither_type (ptr);
}
}
void
ExportFormatManager::select_compatibility (WeakExportFormatCompatibilityPtr const & /*compat*/)
{
/* Calculate compatibility intersection for the selection */
ExportFormatBasePtr compat_intersect = get_compatibility_intersection ();
/* Unselect incompatible items */
boost::shared_ptr<ExportFormatBase> select_intersect;
select_intersect = compat_intersect->get_intersection (*current_selection);
if (select_intersect->qualities_empty()) {
select_quality (QualityPtr());
}
select_intersect = compat_intersect->get_intersection (*current_selection);
if (select_intersect->formats_empty()) {
select_format (ExportFormatPtr());
}
select_intersect = compat_intersect->get_intersection (*current_selection);
if (select_intersect->sample_rates_empty()) {
select_sample_rate (SampleRatePtr());
}
select_intersect = compat_intersect->get_intersection (*current_selection);
if (select_intersect->sample_formats_empty()) {
select_sample_format (SampleFormatPtr());
}
}
void
ExportFormatManager::select_quality (QualityPtr const & quality)
{
bool do_selection_changed = !pending_selection_change;
if (!pending_selection_change) {
pending_selection_change = true;
}
if (quality) {
current_selection->set_quality (quality->quality);
/* Deselect format if it is incompatible */
ExportFormatPtr format = get_selected_format();
if (format && !format->has_quality (quality->quality)) {
format->set_selected (false);
}
} else {
current_selection->set_quality (ExportFormatBase::Q_None);
QualityPtr current_quality = get_selected_quality();
if (current_quality) {
current_quality->set_selected (false);
}
/* Note:
* A quality is never explicitly deselected without also deselecting the format
* so we don't need to deselect the format here.
* doing so causes extra complications
*/
}
if (do_selection_changed) {
selection_changed ();
}
}
void
ExportFormatManager::select_format (ExportFormatPtr const & format)
{
bool do_selection_changed = !pending_selection_change;
if (!pending_selection_change) {
pending_selection_change = true;
}
current_selection->set_format (format);
if (format) {
/* Slect right quality for format */
ExportFormatBase::Quality quality = format->get_quality();
for (QualityList::iterator it = qualities.begin (); it != qualities.end (); ++it) {
if ((*it)->quality == quality) {
(*it)->set_selected (true);
} else {
(*it)->set_selected (false);
}
}
/* Handle sample formats */
ExportFormatBase::SampleFormat format_to_select;
if (format->sample_format_is_compatible (current_selection->sample_format())) {
format_to_select = current_selection->sample_format();
} else {
format_to_select = format->default_sample_format();
}
boost::shared_ptr<HasSampleFormat> hsf;
if ((hsf = boost::dynamic_pointer_cast<HasSampleFormat> (format))) {
SampleFormatList sample_formats = hsf->get_sample_formats();
for (SampleFormatList::iterator it = sample_formats.begin (); it != sample_formats.end (); ++it) {
if ((*it)->format == format_to_select) {
(*it)->set_selected (true);
} else {
(*it)->set_selected (false);
}
}
}
current_selection->set_sample_format (format_to_select);
} else {
ExportFormatPtr current_format = get_selected_format ();
if (current_format) {
current_format->set_selected (false);
}
}
if (do_selection_changed) {
selection_changed ();
}
}
void
ExportFormatManager::select_sample_rate (SampleRatePtr const & rate)
{
bool do_selection_changed = !pending_selection_change;
if (!pending_selection_change) {
pending_selection_change = true;
}
if (rate) {
current_selection->set_sample_rate (rate->rate);
} else {
current_selection->set_sample_rate (ExportFormatBase::SR_None);
SampleRatePtr current_rate = get_selected_sample_rate();
if (current_rate) {
current_rate->set_selected (false);
}
}
if (do_selection_changed) {
selection_changed ();
}
}
void
ExportFormatManager::select_sample_format (SampleFormatPtr const & format)
{
bool do_selection_changed = !pending_selection_change;
if (!pending_selection_change) {
pending_selection_change = true;
}
if (format) {
current_selection->set_sample_format (format->format);
} else {
current_selection->set_sample_format (ExportFormatBase::SF_None);
SampleFormatPtr current_format = get_selected_sample_format();
if (current_format) {
current_format->set_selected (false);
}
}
if (do_selection_changed) {
selection_changed ();
}
}
void
ExportFormatManager::select_dither_type (DitherTypePtr const & type)
{
bool do_selection_changed = !pending_selection_change;
if (!pending_selection_change) {
pending_selection_change = true;
}
if (type) {
current_selection->set_dither_type (type->type);
} else {
current_selection->set_dither_type (ExportFormatBase::D_None);
}
if (do_selection_changed) {
selection_changed ();
}
}
void
ExportFormatManager::selection_changed ()
{
/* Get a list of incompatible compatibility selections */
CompatList incompatibles;
for (CompatList::iterator it = compatibilities.begin(); it != compatibilities.end(); ++it) {
if (!current_selection->is_compatible_with (**it)) {
incompatibles.push_back (*it);
}
}
/* Deselect them */
for (CompatList::iterator it = incompatibles.begin(); it != incompatibles.end(); ++it) {
(*it)->set_selected (false);
}
/* Mark compatibility for everything necessary */
std::set<ExportFormatBase::Quality> compatible_qualities;
ExportFormatBasePtr compat_intersect = get_compatibility_intersection ();
ExportFormatCompatibility global_compat (*compat_intersect);
for (FormatList::iterator it = formats.begin(); it != formats.end(); ++it) {
if ((*it)->set_compatibility_state (global_compat)) {
compatible_qualities.insert ((*it)->get_quality());
}
}
bool any_quality_compatible = true;
for (QualityList::iterator it = qualities.begin(); it != qualities.end(); ++it) {
if (compatible_qualities.find((*it)->quality) != compatible_qualities.end()) {
(*it)->set_compatible (true);
} else {
(*it)->set_compatible (false);
if ((*it)->quality != ExportFormatBase::Q_Any) {
any_quality_compatible = false;
}
}
}
if (any_quality_compatible) {
for (QualityList::iterator it = qualities.begin(); it != qualities.end(); ++it) {
if ((*it)->quality == ExportFormatBase::Q_Any) {
(*it)->set_compatible (true);
break;
}
}
}
for (SampleRateList::iterator it = sample_rates.begin(); it != sample_rates.end(); ++it) {
if (compat_intersect->has_sample_rate ((*it)->rate)) {
(*it)->set_compatible (true);
} else {
(*it)->set_compatible (false);
}
}
boost::shared_ptr<HasSampleFormat> hsf;
if ((hsf = boost::dynamic_pointer_cast<HasSampleFormat> (get_selected_format()))) {
SampleFormatList sf_list = hsf->get_sample_formats();
for (SampleFormatList::iterator it = sf_list.begin(); it != sf_list.end(); ++it) {
if (compat_intersect->has_sample_format ((*it)->format)) {
(*it)->set_compatible (true);
} else {
(*it)->set_compatible (false);
}
}
}
/* Signal completeness and possible description change */
CompleteChanged (current_selection->is_complete());
check_for_description_change ();
/* Reset pending state */
pending_selection_change = false;
}
void
ExportFormatManager::check_for_description_change ()
{
std::string new_description = current_selection->description();
if (new_description == prev_description) { return; }
prev_description = new_description;
DescriptionChanged();
}
ExportFormatManager::QualityPtr
ExportFormatManager::get_selected_quality ()
{
for (QualityList::iterator it = qualities.begin(); it != qualities.end(); ++it) {
if ((*it)->selected()) {
return *it;
}
}
return QualityPtr();
}
ExportFormatPtr
ExportFormatManager::get_selected_format ()
{
ExportFormatPtr format;
for (FormatList::iterator it = formats.begin(); it != formats.end(); ++it) {
if ((*it)->selected()) {
return *it;
}
}
return format;
}
ExportFormatManager::SampleRatePtr
ExportFormatManager::get_selected_sample_rate ()
{
for (SampleRateList::iterator it = sample_rates.begin(); it != sample_rates.end(); ++it) {
if ((*it)->selected()) {
return *it;
}
}
return SampleRatePtr();
}
ExportFormatManager::SampleFormatPtr
ExportFormatManager::get_selected_sample_format ()
{
boost::shared_ptr<HasSampleFormat> hsf;
if ((hsf = boost::dynamic_pointer_cast<HasSampleFormat> (get_selected_format()))) {
return hsf->get_selected_sample_format ();
} else {
return SampleFormatPtr ();
}
}
ExportFormatBasePtr
ExportFormatManager::get_compatibility_intersection ()
{
ExportFormatBasePtr compat_intersect = universal_set;
for (CompatList::iterator it = compatibilities.begin(); it != compatibilities.end(); ++it) {
if ((*it)->selected ()) {
compat_intersect = compat_intersect->get_intersection (**it);
}
}
return compat_intersect;
}
}; // namespace ARDOUR