itsmattkc
c62b59965e
Since all NodeInputs will generally only need their data type and default value set once, we place it all into the constructor for cleaner and easier to manage code.
71 lines
1.4 KiB
C++
71 lines
1.4 KiB
C++
#include "pan.h"
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PanNode::PanNode()
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{
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samples_input_ = new NodeInput("samples_in", NodeParam::kSamples);
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AddInput(samples_input_);
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panning_input_ = new NodeInput("panning_in", NodeParam::kFloat);
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panning_input_->set_minimum(-1);
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panning_input_->set_maximum(1);
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AddInput(panning_input_);
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}
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Node *PanNode::copy() const
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{
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return new PanNode();
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}
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QString PanNode::Name() const
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{
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return tr("Pan");
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}
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QString PanNode::id() const
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{
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return "org.olivevideoeditor.Olive.pan";
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}
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QString PanNode::Category() const
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{
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return tr("Audio");
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}
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QString PanNode::Description() const
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{
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return tr("Adjust the stereo panning of an audio source.");
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}
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NodeInput *PanNode::ProcessesSamplesFrom() const
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{
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return samples_input_;
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}
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void PanNode::ProcessSamples(const NodeValueDatabase *values, const AudioRenderingParams ¶ms, const float *input, float *output, int index) const
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{
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if (params.channel_count() != 2) {
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// This node currently only works for stereo audio
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return;
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}
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float pan_val = (*values)[panning_input_].Get(NodeParam::kFloat).toFloat();
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if (index%2 == 0) {
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// Sample is left channel
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if (pan_val > 0) {
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output[index] = input[index] * (1.0F - pan_val);
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}
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} else {
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// Sample is right channel
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if (pan_val < 0) {
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output[index] = input[index] * (1.0F - qAbs(pan_val));
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}
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}
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}
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void PanNode::Retranslate()
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{
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samples_input_->set_name(tr("Samples"));
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panning_input_->set_name(tr("Pan"));
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}
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