itsmattkc
662d66ad10
General code and functionality improvements. Moved more code out of the OpenGL backend for portability. Implemented audio transitions. Implemented basic transition animation curve settings.
90 lines
2.5 KiB
C++
90 lines
2.5 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 "crossdissolvetransition.h"
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OLIVE_NAMESPACE_ENTER
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CrossDissolveTransition::CrossDissolveTransition()
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{
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}
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Node *CrossDissolveTransition::copy() const
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{
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return new CrossDissolveTransition();
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}
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QString CrossDissolveTransition::Name() const
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{
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return tr("Cross Dissolve");
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}
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QString CrossDissolveTransition::id() const
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{
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return QStringLiteral("org.olivevideoeditor.Olive.crossdissolve");
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}
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QList<Node::CategoryID> CrossDissolveTransition::Category() const
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{
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return {kCategoryTransition};
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}
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QString CrossDissolveTransition::Description() const
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{
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return tr("Smoothly transition between two clips.");
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}
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ShaderCode CrossDissolveTransition::GetShaderCode(const QString &shader_id) const
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{
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Q_UNUSED(shader_id)
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return ShaderCode(Node::ReadFileAsString(":/shaders/crossdissolve.frag"), QString());
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}
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void CrossDissolveTransition::SampleJobEvent(SampleBufferPtr from_samples, SampleBufferPtr to_samples, SampleBufferPtr out_samples, double time_in) const
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{
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for (int i=0; i<out_samples->sample_count(); i++) {
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double this_sample_time = out_samples->audio_params().samples_to_time(i).toDouble() + time_in;
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double progress = GetTotalProgress(this_sample_time);
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for (int j=0; j<out_samples->audio_params().channel_count(); j++) {
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out_samples->data()[j][i] = 0;
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if (from_samples) {
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if (i < from_samples->sample_count()) {
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out_samples->data()[j][i] += from_samples->data()[j][i] * TransformCurve(1.0 - progress);
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}
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}
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if (to_samples) {
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// Offset input samples from the end
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int in_index = i - (out_samples->sample_count() - to_samples->sample_count());
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if (in_index >= 0) {
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out_samples->data()[j][i] += to_samples->data()[j][in_index] * TransformCurve(progress);
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}
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}
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}
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}
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}
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OLIVE_NAMESPACE_EXIT
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