Files
oak-editor/app/node/audio/pan/pan.cpp
T
itsmattkc 75d4cd899b use hardcoded namespace
The macro defined namespaces confused the hell out of lupdate and more or less broke translations permanently. Looks like the only way we can do it is to have a hardcoded namespace, which goes against my instinct, but honestly how likely is it that we'll change the namespace anyway (I guess forks might want to do it, but that's their problem ;) )
2020-11-17 20:24:42 +11:00

118 lines
3.0 KiB
C++

/***
Olive - Non-Linear Video Editor
Copyright (C) 2020 Olive Team
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 3 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, see <http://www.gnu.org/licenses/>.
***/
#include "pan.h"
namespace olive {
PanNode::PanNode()
{
samples_input_ = new NodeInput("samples_in", NodeParam::kSamples);
AddInput(samples_input_);
panning_input_ = new NodeInput("panning_in", NodeParam::kFloat, 0.0);
panning_input_->set_property("min", -1.0);
panning_input_->set_property("max", 1.0);
panning_input_->set_property("view", "percent");
AddInput(panning_input_);
}
Node *PanNode::copy() const
{
return new PanNode();
}
QString PanNode::Name() const
{
return tr("Pan");
}
QString PanNode::id() const
{
return QStringLiteral("org.olivevideoeditor.Olive.pan");
}
QVector<Node::CategoryID> PanNode::Category() const
{
return {kCategoryChannels};
}
QString PanNode::Description() const
{
return tr("Adjust the stereo panning of an audio source.");
}
NodeValueTable PanNode::Value(NodeValueDatabase &value) const
{
// Create a sample job
SampleJob job(samples_input_, value);
job.InsertValue(panning_input_, value);
// Push it to our table
NodeValueTable table = value.Merge();
if (job.HasSamples()) {
float pan_volume = job.GetValue(panning_input_).data.toFloat();
if (panning_input_->is_static()) {
if (!qIsNull(pan_volume) && job.samples()->audio_params().channel_count() == 2) {
if (pan_volume > 0) {
job.samples()->transform_volume_for_channel(0, 1.0f - pan_volume);
} else {
job.samples()->transform_volume_for_channel(1, 1.0f + pan_volume);
}
}
table.Push(NodeParam::kSamples, QVariant::fromValue(job.samples()), this);
} else {
table.Push(NodeParam::kSampleJob, QVariant::fromValue(job), this);
}
}
return table;
}
void PanNode::ProcessSamples(NodeValueDatabase &values, const SampleBufferPtr input, SampleBufferPtr output, int index) const
{
if (input->audio_params().channel_count() != 2) {
// This node currently only works for stereo audio
return;
}
float pan_val = values[panning_input_].Get(NodeParam::kFloat).toFloat();
for (int i=0;i<input->audio_params().channel_count();i++) {
output->data()[i][index] = input->data()[i][index];
}
if (pan_val > 0) {
output->data()[0][index] *= (1.0F - pan_val);
} else if (pan_val < 0) {
output->data()[1][index] *= (1.0F - qAbs(pan_val));
}
}
void PanNode::Retranslate()
{
samples_input_->set_name(tr("Samples"));
panning_input_->set_name(tr("Pan"));
}
}