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livetrax/libs/ardour/export_format_base.cc

206 lines
5.5 KiB
C++

/*
* Copyright (C) 2008-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2009-2011 David Robillard <d@drobilla.net>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "ardour/export_format_base.h"
namespace ARDOUR
{
void
ExportFormatBase::SelectableCompatible::set_selected (bool value)
{
if (_selected != value) {
_selected = value;
SelectChanged (value);
}
}
void
ExportFormatBase::SelectableCompatible::set_compatible (bool value)
{
if (_compatible != value) {
_compatible = value;
CompatibleChanged (value);
}
if (!value) {
set_selected (false);
}
}
ExportFormatBase::ExportFormatBase ()
{
}
ExportFormatBase::ExportFormatBase (ExportFormatBase const & other) :
sample_formats (other.sample_formats),
endiannesses (other.endiannesses),
sample_rates (other.sample_rates),
format_ids (other.format_ids),
qualities (other.qualities)
{
}
ExportFormatBase::~ExportFormatBase ()
{
}
boost::shared_ptr<ExportFormatBase>
ExportFormatBase::get_intersection (ExportFormatBase const & other) const
{
return do_set_operation (other, SetIntersection);
}
boost::shared_ptr<ExportFormatBase>
ExportFormatBase::get_union (ExportFormatBase const & other) const
{
return do_set_operation (other, SetUnion);
}
boost::shared_ptr<ExportFormatBase>
ExportFormatBase::do_set_operation (ExportFormatBase const & other, SetOperation operation) const
{
boost::shared_ptr<ExportFormatBase> result (new ExportFormatBase ());
/* Sets */
// Endiannesses
{
EndianSet::const_iterator start1 = endiannesses.begin();
EndianSet::const_iterator end1 = endiannesses.end();
EndianSet::const_iterator start2 = other.endiannesses.begin();
EndianSet::const_iterator end2 = other.endiannesses.end();
std::insert_iterator<EndianSet> insert (result->endiannesses, result->endiannesses.begin());
switch (operation) {
case SetIntersection:
std::set_intersection (start1, end1, start2, end2, insert);
break;
case SetUnion:
std::set_union (start1, end1, start2, end2, insert);
break;
}
}
// Sample formats
{
SampleFormatSet::const_iterator start1 = sample_formats.begin();
SampleFormatSet::const_iterator end1 = sample_formats.end();
SampleFormatSet::const_iterator start2 = other.sample_formats.begin();
SampleFormatSet::const_iterator end2 = other.sample_formats.end();
std::insert_iterator<SampleFormatSet> insert (result->sample_formats, result->sample_formats.begin());
switch (operation) {
case SetIntersection:
std::set_intersection (start1, end1, start2, end2, insert);
break;
case SetUnion:
std::set_union (start1, end1, start2, end2, insert);
break;
}
}
// Sample rates
{
SampleRateSet::const_iterator start1 = sample_rates.begin();
SampleRateSet::const_iterator end1 = sample_rates.end();
SampleRateSet::const_iterator start2 = other.sample_rates.begin();
SampleRateSet::const_iterator end2 = other.sample_rates.end();
std::insert_iterator<SampleRateSet> insert (result->sample_rates, result->sample_rates.begin());
switch (operation) {
case SetIntersection:
std::set_intersection (start1, end1, start2, end2, insert);
break;
case SetUnion:
std::set_union (start1, end1, start2, end2, insert);
break;
}
}
// Format ids
{
FormatSet::const_iterator start1 = format_ids.begin();
FormatSet::const_iterator end1 = format_ids.end();
FormatSet::const_iterator start2 = other.format_ids.begin();
FormatSet::const_iterator end2 = other.format_ids.end();
std::insert_iterator<FormatSet> insert (result->format_ids, result->format_ids.begin());
switch (operation) {
case SetIntersection:
std::set_intersection (start1, end1, start2, end2, insert);
break;
case SetUnion:
std::set_union (start1, end1, start2, end2, insert);
break;
}
}
// Qualities
{
QualitySet::const_iterator start1 = qualities.begin();
QualitySet::const_iterator end1 = qualities.end();
QualitySet::const_iterator start2 = other.qualities.begin();
QualitySet::const_iterator end2 = other.qualities.end();
std::insert_iterator<QualitySet> insert (result->qualities, result->qualities.begin());
switch (operation) {
case SetIntersection:
std::set_intersection (start1, end1, start2, end2, insert);
break;
case SetUnion:
std::set_union (start1, end1, start2, end2, insert);
break;
}
}
return result;
}
ExportFormatBase::SampleRate
ExportFormatBase::nearest_sample_rate (samplecnt_t sample_rate)
{
int diff = 0;
int smallest_diff = INT_MAX;
SampleRate best_match = SR_None;
#define DO_SR_COMPARISON(rate) \
diff = std::fabs((double)((rate) - sample_rate)); \
if(diff < smallest_diff) { \
smallest_diff = diff; \
best_match = (rate); \
}
DO_SR_COMPARISON(SR_8);
DO_SR_COMPARISON(SR_22_05);
DO_SR_COMPARISON(SR_44_1);
DO_SR_COMPARISON(SR_48);
DO_SR_COMPARISON(SR_88_2);
DO_SR_COMPARISON(SR_96);
DO_SR_COMPARISON(SR_192);
return best_match;
#undef DO_SR_COMPARISON
}
}; // namespace ARDOUR