itsmattkc
81c1922911
This makes the node system somewhat more high-level with the intent of making working with them far more flexible and stable. By making the architecture more abstracted, it becomes far less rigid which should allow us to do even more with it and make it much less crash prone.
127 lines
3.2 KiB
C++
127 lines
3.2 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 "clip.h"
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namespace olive {
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const QString ClipBlock::kBufferIn = QStringLiteral("buffer_in");
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ClipBlock::ClipBlock()
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{
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AddInput(kBufferIn, NodeValue::kNone, InputFlags(kInputFlagNotKeyframable));
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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 QStringLiteral("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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void ClipBlock::InvalidateCache(const TimeRange& range, const QString& from, int element)
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{
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Q_UNUSED(element)
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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 == kBufferIn) {
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// Adjust range from media time to sequence time
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rational start = MediaToSequenceTime(range.in());
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rational end = MediaToSequenceTime(range.out());
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Block::InvalidateCache(TimeRange(start, end), from);
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} else {
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// Otherwise, pass signal along normally
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Block::InvalidateCache(range, from);
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}
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}
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TimeRange ClipBlock::InputTimeAdjustment(const QString& input, int element, const TimeRange& input_time) const
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{
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Q_UNUSED(element)
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if (input == kBufferIn) {
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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, element, input_time);
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}
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TimeRange ClipBlock::OutputTimeAdjustment(const QString& input, int element, const TimeRange& input_time) const
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{
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Q_UNUSED(element)
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if (input == kBufferIn) {
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return TimeRange(MediaToSequenceTime(input_time.in()), MediaToSequenceTime(input_time.out()));
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}
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return Block::OutputTimeAdjustment(input, element, input_time);
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}
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NodeValueTable ClipBlock::Value(const QString &output, NodeValueDatabase &value) const
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{
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Q_UNUSED(output)
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// We discard most values here except for the buffer we received
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NodeValue data = value[kBufferIn].GetWithMeta(NodeValue::kBuffer);
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NodeValueTable table;
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if (data.type() != NodeValue::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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SetInputName(kBufferIn, tr("Buffer"));
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}
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void ClipBlock::Hash(QCryptographicHash &hash, const rational &time) const
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{
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if (IsInputConnected(kBufferIn)) {
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rational t = InputTimeAdjustment(kBufferIn, -1, TimeRange(time, time)).in();
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GetConnectedNode(kBufferIn)->Hash(hash, t);
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}
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}
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}
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