itsmattkc
c168bf1a80
for UI representations Allows properties to be set without adding explicit extra members to NodeInputs. Crucially this means parameters like slider value representations (percent, decibel, etc.) can be set from NodeInputs now.
74 lines
1.5 KiB
C++
74 lines
1.5 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_property("min", -1.0);
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panning_input_->set_property("max", 1.0);
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panning_input_->set_property("view", "percent");
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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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output[index] = input[index];
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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] *= (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] *= (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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