107 lines
2.8 KiB
C++
107 lines
2.8 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 "clip.h"
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ClipBlock::ClipBlock()
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{
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texture_input_ = new NodeInput("tex_in");
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texture_input_->add_data_input(NodeInput::kTexture);
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AddParameter(texture_input_);
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}
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Block *ClipBlock::copy()
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{
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ClipBlock* c = new ClipBlock();
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CopyParameters(this, c);
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return c;
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}
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Block::Type ClipBlock::type()
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{
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return kClip;
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}
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QString ClipBlock::Name()
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{
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return tr("Clip");
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}
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QString ClipBlock::id()
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{
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return "org.olivevideoeditor.Olive.clip";
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}
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QString ClipBlock::Description()
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{
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return tr("A time-based node that represents a media source.");
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}
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NodeInput *ClipBlock::texture_input()
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{
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return texture_input_;
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}
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QVariant ClipBlock::Value(NodeOutput* param, const rational& v_in, const rational &v_out)
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{
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if (param == texture_output()) {
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// If the time retrieved is within this block, get texture information
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if (texture_input()->IsConnected() && v_in >= in() && v_out < out()) {
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// Retrieve texture
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// We convert the time given (timeline time) to media time
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return texture_input_->get_value(SequenceToMediaTime(v_in), SequenceToMediaTime(v_out));
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}
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return 0;
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}
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return Block::Value(param, v_in, v_out);
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}
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void ClipBlock::InvalidateCache(const rational &start_range, const rational &end_range, NodeInput *from)
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{
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// If signal is from texture input, transform all times from media time to sequence time
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if (from == texture_input_) {
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rational start = MediaToSequenceTime(start_range);
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rational end = MediaToSequenceTime(end_range);
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// Limit cache invalidation to clip lengths
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start = qMax(start, in());
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end = qMin(end, out());
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Node::InvalidateCache(start, end, from);
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} else {
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// Otherwise, pass signal along normally
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Node::InvalidateCache(start_range, end_range, from);
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}
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}
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QList<NodeDependency> ClipBlock::RunDependencies(NodeOutput *output, const rational &time)
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{
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QList<NodeDependency> deps;
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if (output == texture_output() && texture_input_->IsConnected()) {
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deps.append(NodeDependency(texture_input_->get_connected_output(), SequenceToMediaTime(time), SequenceToMediaTime(time)));
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}
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return deps;
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}
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