itsmattkc
6f0d72c05d
While planar audio cannot be used for playback, it's much easier for processing. This should lead to cleaner and easier to write code in the future.
75 lines
1.6 KiB
C++
75 lines
1.6 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 QStringLiteral("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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Node::Capabilities PanNode::GetCapabilities(const NodeValueDatabase &) const
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{
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return kSampleProcessor;
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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 SampleBufferPtr input, SampleBufferPtr 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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for (int i=0;i<params.channel_count();i++) {
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output->data()[i][index] = input->data()[i][index];
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}
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if (pan_val > 0) {
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output->data()[0][index] *= (1.0F - pan_val);
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} else if (pan_val < 0) {
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output->data()[1][index] *= (1.0F - qAbs(pan_val));
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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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