124 lines
3.3 KiB
C++
124 lines
3.3 KiB
C++
/***
|
|
|
|
Olive - Non-Linear Video Editor
|
|
Copyright (C) 2022 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"
|
|
|
|
#include "widget/slider/floatslider.h"
|
|
|
|
namespace olive {
|
|
|
|
const QString PanNode::kSamplesInput = QStringLiteral("samples_in");
|
|
const QString PanNode::kPanningInput = QStringLiteral("panning_in");
|
|
|
|
#define super Node
|
|
|
|
PanNode::PanNode()
|
|
{
|
|
AddInput(kSamplesInput, NodeValue::kSamples, InputFlags(kInputFlagNotKeyframable));
|
|
|
|
AddInput(kPanningInput, NodeValue::kFloat, 0.0);
|
|
SetInputProperty(kPanningInput, QStringLiteral("min"), -1.0);
|
|
SetInputProperty(kPanningInput, QStringLiteral("max"), 1.0);
|
|
SetInputProperty(kPanningInput, QStringLiteral("view"), FloatSlider::kPercentage);
|
|
|
|
SetFlags(kAudioEffect);
|
|
SetEffectInput(kSamplesInput);
|
|
}
|
|
|
|
QString PanNode::Name() const
|
|
{
|
|
return tr("Pan");
|
|
}
|
|
|
|
QString PanNode::id() const
|
|
{
|
|
return QStringLiteral("org.olivevideoeditor.Olive.pan");
|
|
}
|
|
|
|
QVector<Node::CategoryID> PanNode::Category() const
|
|
{
|
|
return {kCategoryFilter};
|
|
}
|
|
|
|
QString PanNode::Description() const
|
|
{
|
|
return tr("Adjust the stereo panning of an audio source.");
|
|
}
|
|
|
|
void PanNode::Value(const NodeValueRow &value, const NodeGlobals &globals, NodeValueTable *table) const
|
|
{
|
|
Q_UNUSED(globals)
|
|
|
|
// Create a sample job
|
|
SampleBuffer samples = value[kSamplesInput].toSamples();
|
|
if (samples.is_allocated()) {
|
|
bool pushed_job = false;
|
|
|
|
// This node is only compatible with stereo audio
|
|
if (samples.audio_params().channel_count() == 2) {
|
|
// If the input is static, we can just do it now which will be faster
|
|
if (IsInputStatic(kPanningInput)) {
|
|
float pan_volume = value[kPanningInput].toDouble();
|
|
if (!qIsNull(pan_volume)) {
|
|
if (pan_volume > 0) {
|
|
samples.transform_volume_for_channel(0, 1.0f - pan_volume);
|
|
} else {
|
|
samples.transform_volume_for_channel(1, 1.0f + pan_volume);
|
|
}
|
|
}
|
|
} else {
|
|
// Requires job
|
|
|
|
pushed_job = true;
|
|
table->Push(NodeValue::kSamples, SampleJob(kSamplesInput, value), this);
|
|
}
|
|
}
|
|
|
|
if (!pushed_job) {
|
|
table->Push(value[kSamplesInput]);
|
|
}
|
|
}
|
|
}
|
|
|
|
void PanNode::ProcessSamples(const NodeValueRow &values, const SampleBuffer &input, SampleBuffer &output, int index) const
|
|
{
|
|
float pan_val = values[kPanningInput].toDouble();
|
|
|
|
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()
|
|
{
|
|
super::Retranslate();
|
|
|
|
SetInputName(kSamplesInput, tr("Samples"));
|
|
SetInputName(kPanningInput, tr("Pan"));
|
|
}
|
|
|
|
}
|