101 lines
2.6 KiB
C++
101 lines
2.6 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 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 "volume.h"
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OLIVE_NAMESPACE_ENTER
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VolumeNode::VolumeNode()
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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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volume_input_ = new NodeInput("volume_in", NodeParam::kFloat, 1.0);
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volume_input_->set_property("min", 0.0);
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volume_input_->set_property("view", "db");
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AddInput(volume_input_);
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}
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Node *VolumeNode::copy() const
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{
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return new VolumeNode();
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}
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QString VolumeNode::Name() const
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{
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return tr("Volume");
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}
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QString VolumeNode::id() const
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{
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return QStringLiteral("org.olivevideoeditor.Olive.volume");
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}
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QList<Node::CategoryID> VolumeNode::Category() const
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{
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return {kCategoryFilter};
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}
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QString VolumeNode::Description() const
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{
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return tr("Adjusts the volume of an audio source.");
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}
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NodeValueTable VolumeNode::Value(NodeValueDatabase &value) const
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{
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SampleJob job(samples_input_, value);
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job.InsertValue(volume_input_, value);
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NodeValueTable table = value.Merge();
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if (job.HasSamples()) {
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float volume_val = job.GetValue(volume_input_).data().toFloat();
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if (volume_input_->is_static()) {
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// Volume never changes so we can make some performance optimizations here
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if (!qFuzzyCompare(volume_val, 1.0f)) {
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job.samples()->transform_volume(volume_val);
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}
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table.Push(NodeParam::kSamples, QVariant::fromValue(job.samples()), this);
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} else {
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table.Push(NodeParam::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 VolumeNode::ProcessSamples(NodeValueDatabase &values, const SampleBufferPtr input, SampleBufferPtr output, int index) const
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{
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float volume_val = values[volume_input_].Get(NodeParam::kFloat).toFloat();
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for (int i=0;i<output->audio_params().channel_count();i++) {
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output->data()[i][index] = input->data()[i][index] * volume_val;
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}
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}
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void VolumeNode::Retranslate()
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{
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samples_input_->set_name(tr("Samples"));
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volume_input_->set_name(tr("Volume"));
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}
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OLIVE_NAMESPACE_EXIT
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