itsmattkc
c5d3c4ff36
Implements a function that calculates the time transformation(s) only between one node and another.
120 lines
3.0 KiB
C++
120 lines
3.0 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("buffer_in", NodeInput::kBuffer);
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texture_input_->set_is_keyframable(false);
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AddInput(texture_input_);
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}
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Node *ClipBlock::copy() const
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{
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return new ClipBlock();
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}
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Block::Type ClipBlock::type() const
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{
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return kClip;
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}
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QString ClipBlock::Name() const
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{
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return tr("Clip");
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}
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QString ClipBlock::id() const
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{
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return "org.olivevideoeditor.Olive.clip";
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}
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QString ClipBlock::Description() const
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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() const
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{
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return texture_input_;
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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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// Ensure range actually covers this clip's area
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if (!(end < in() || start > out())) {
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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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}
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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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TimeRange ClipBlock::InputTimeAdjustment(NodeInput *input, const TimeRange &input_time) const
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{
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if (input == texture_input_) {
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return TimeRange(SequenceToMediaTime(input_time.in()), SequenceToMediaTime(input_time.out()));
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}
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return Block::InputTimeAdjustment(input, input_time);
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}
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TimeRange ClipBlock::OutputTimeAdjustment(NodeInput *input, const TimeRange &input_time) const
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{
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if (input == texture_input_) {
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return TimeRange(MediaToSequenceTime(input_time.in()), MediaToSequenceTime(input_time.out()));
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}
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return Block::InputTimeAdjustment(input, input_time);
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}
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NodeValueTable ClipBlock::Value(const NodeValueDatabase &value) const
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{
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// We discard most values here except for the buffer we received
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NodeValueTable table;
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NodeValue data = value[texture_input()].GetWithMeta(NodeParam::kBuffer);
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if (data.type() != NodeParam::kNone) {
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table.Push(data);
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}
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return table;
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}
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void ClipBlock::Retranslate()
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{
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Block::Retranslate();
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texture_input_->set_name(tr("Buffer"));
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}
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