/*
- Copyright (C) 2014-2015 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2014-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
*/
-#include "mid_side_decoder.h"
+
#include "audio_buffers.h"
#include "audio_mapping.h"
+#include "mid_side_decoder.h"
#include "i18n.h"
-using std::string;
+
+using std::make_shared;
using std::min;
+using std::shared_ptr;
+using std::string;
using std::vector;
-using boost::shared_ptr;
+
string
MidSideDecoder::name () const
return _("Mid-side decoder");
}
+
string
MidSideDecoder::id () const
{
return N_("mid-side-decoder");
}
+
int
MidSideDecoder::out_channels () const
{
return 3;
}
+
shared_ptr<AudioProcessor>
MidSideDecoder::clone (int) const
{
- return shared_ptr<AudioProcessor> (new MidSideDecoder ());
+ return make_shared<MidSideDecoder>();
}
+
shared_ptr<AudioBuffers>
MidSideDecoder::run (shared_ptr<const AudioBuffers> in, int channels)
{
int const N = min (channels, 3);
- shared_ptr<AudioBuffers> out (new AudioBuffers (channels, in->frames ()));
+ auto out = make_shared<AudioBuffers>(channels, in->frames ());
for (int i = 0; i < in->frames(); ++i) {
- float const left = in->data()[0][i];
- float const right = in->data()[1][i];
- float const mid = (left + right) / 2;
+ auto const left = in->data()[0][i];
+ auto const right = in->data()[1][i];
+ auto const mid = (left + right) / 2;
if (N > 0) {
out->data()[0][i] = left - mid;
}
return out;
}
+
void
MidSideDecoder::make_audio_mapping_default (AudioMapping& mapping) const
{
/* Just map the first two input channels to our M/S */
mapping.make_zero ();
- for (int i = 0; i < min (2, mapping.input_channels()); ++i) {
+ for (int i = 0; i < min(2, mapping.input_channels()); ++i) {
mapping.set (i, i, 1);
}
}
-vector<string>
+
+vector<NamedChannel>
MidSideDecoder::input_names () const
{
- vector<string> n;
-
- n.push_back (_("Left"));
- n.push_back (_("Right"));
-
- return n;
+ return {
+ NamedChannel(_("Left"), 0),
+ NamedChannel(_("Right"), 1)
+ };
}