itsmattkc
181235f6ce
Yep, this is another one of my "famous" sweeping rewrites. Expect things to break. Goals for this are: - Greatly simplify node connections (particularly with arrays) so the code requires less maintenance/is more stable - Redesign node structure to address issues where UI would stall for lengthy periods of time - Less reliance on shared ptrs/greater reliance on QObject system for inheritance/memory management - General code cleanup and improvements
116 lines
3.0 KiB
C++
116 lines
3.0 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2020 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "pan.h"
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namespace olive {
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PanNode::PanNode()
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{
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samples_input_ = new NodeInput(this, QStringLiteral("samples_in"), NodeValue::kSamples);
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panning_input_ = new NodeInput(this, QStringLiteral("panning_in"), NodeValue::kFloat, 0.0);
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panning_input_->setProperty("min", -1.0);
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panning_input_->setProperty("max", 1.0);
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panning_input_->setProperty("view", QStringLiteral("percent"));
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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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QVector<Node::CategoryID> PanNode::Category() const
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{
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return {kCategoryChannels};
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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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NodeValueTable PanNode::Value(NodeValueDatabase &value) const
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{
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// Create a sample job
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SampleJob job(samples_input_, value);
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job.InsertValue(panning_input_, value);
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// Push it to our table
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NodeValueTable table = value.Merge();
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if (job.HasSamples()) {
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float pan_volume = job.GetValue(panning_input_).data().toFloat();
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if (panning_input_->IsStatic()) {
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if (!qIsNull(pan_volume) && job.samples()->audio_params().channel_count() == 2) {
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if (pan_volume > 0) {
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job.samples()->transform_volume_for_channel(0, 1.0f - pan_volume);
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} else {
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job.samples()->transform_volume_for_channel(1, 1.0f + pan_volume);
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}
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}
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table.Push(NodeValue::kSamples, QVariant::fromValue(job.samples()), this);
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} else {
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table.Push(NodeValue::kSampleJob, QVariant::fromValue(job), this);
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}
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}
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return table;
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}
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void PanNode::ProcessSamples(NodeValueDatabase &values, const SampleBufferPtr input, SampleBufferPtr output, int index) const
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{
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if (input->audio_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(NodeValue::kFloat).toFloat();
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for (int i=0;i<input->audio_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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}
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