itsmattkc
7100d00060
Primarily implemented for the math node so a new shader can be generated and compiled based on what inputs the node is receiving.
79 lines
1.6 KiB
C++
79 lines
1.6 KiB
C++
#include "pan.h"
|
|
|
|
PanNode::PanNode()
|
|
{
|
|
samples_input_ = new NodeInput("samples_in", NodeParam::kSamples);
|
|
AddInput(samples_input_);
|
|
|
|
panning_input_ = new NodeInput("panning_in", NodeParam::kFloat);
|
|
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");
|
|
}
|
|
|
|
QString PanNode::Category() const
|
|
{
|
|
return tr("Audio");
|
|
}
|
|
|
|
QString PanNode::Description() const
|
|
{
|
|
return tr("Adjust the stereo panning of an audio source.");
|
|
}
|
|
|
|
Node::Capabilities PanNode::GetCapabilities(const NodeValueDatabase &) const
|
|
{
|
|
return kSampleProcessor;
|
|
}
|
|
|
|
NodeInput *PanNode::ProcessesSamplesFrom() const
|
|
{
|
|
return samples_input_;
|
|
}
|
|
|
|
void PanNode::ProcessSamples(const NodeValueDatabase *values, const AudioRenderingParams ¶ms, const float *input, float *output, int index) const
|
|
{
|
|
if (params.channel_count() != 2) {
|
|
// This node currently only works for stereo audio
|
|
return;
|
|
}
|
|
|
|
float pan_val = (*values)[panning_input_].Get(NodeParam::kFloat).toFloat();
|
|
|
|
output[index] = input[index];
|
|
|
|
if (index%2 == 0) {
|
|
// Sample is left channel
|
|
if (pan_val > 0) {
|
|
output[index] *= (1.0F - pan_val);
|
|
}
|
|
} else {
|
|
// Sample is right channel
|
|
if (pan_val < 0) {
|
|
output[index] *= (1.0F - qAbs(pan_val));
|
|
}
|
|
}
|
|
}
|
|
|
|
void PanNode::Retranslate()
|
|
{
|
|
samples_input_->set_name(tr("Samples"));
|
|
panning_input_->set_name(tr("Pan"));
|
|
}
|