125 lines
3.8 KiB
C++
125 lines
3.8 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2021 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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#ifndef NODETRAVERSER_H
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#define NODETRAVERSER_H
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#include <QVector2D>
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#include "codec/decoder.h"
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#include "common/cancelableobject.h"
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#include "node/output/track/track.h"
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#include "render/job/footagejob.h"
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#include "value.h"
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namespace olive {
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class NodeTraverser
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{
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public:
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NodeTraverser();
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NodeValueTable GenerateTable(const Node *n, const Node::ValueHint &hint, const TimeRange &range);
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NodeValueDatabase GenerateDatabase(const Node *node, const TimeRange &range);
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NodeValueRow GenerateRow(NodeValueDatabase *database, const Node *node, const TimeRange &range);
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NodeValueRow GenerateRow(const Node *node, const TimeRange &range);
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NodeValue GenerateRowValue(const Node *node, const QString &input, NodeValueTable *table);
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NodeValue GenerateRowValueElement(const Node *node, const QString &input, int element, NodeValueTable *table);
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NodeValue GenerateRowValueElement(const Node::ValueHint &hint, NodeValue::Type preferred_type, NodeValueTable *table);
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int GenerateRowValueElementIndex(const Node::ValueHint &hint, NodeValue::Type preferred_type, const NodeValueTable *table);
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int GenerateRowValueElementIndex(const Node *node, const QString &input, int element, const NodeValueTable *table);
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static NodeGlobals GenerateGlobals(const VideoParams ¶ms, const TimeRange &time);
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static NodeGlobals GenerateGlobals(const VideoParams ¶ms, const rational &time)
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{
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return GenerateGlobals(params, TimeRange(time, time + params.frame_rate_as_time_base()));
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}
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const VideoParams& GetCacheVideoParams() const
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{
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return video_params_;
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}
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void SetCacheVideoParams(const VideoParams& params)
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{
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video_params_ = params;
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}
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static int GetChannelCountFromJob(const GenerateJob& job);
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protected:
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NodeValueTable ProcessInput(const Node *node, const QString &input, const TimeRange &range);
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virtual NodeValueTable GenerateBlockTable(const Track *track, const TimeRange& range);
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virtual TexturePtr ProcessVideoFootage(const FootageJob &stream, const rational &input_time);
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virtual SampleBufferPtr ProcessAudioFootage(const FootageJob &stream, const TimeRange &input_time);
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virtual TexturePtr ProcessShader(const Node *node, const TimeRange &range, const ShaderJob& job);
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virtual SampleBufferPtr ProcessSamples(const Node *node, const TimeRange &range, const SampleJob &job);
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virtual TexturePtr ProcessFrameGeneration(const Node *node, const GenerateJob& job);
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virtual TexturePtr GetCachedTexture(const QByteArray& hash);
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virtual void SaveCachedTexture(const QByteArray& hash, TexturePtr texture);
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virtual bool CanCacheFrames()
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{
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return false;
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}
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QVector2D GenerateResolution() const;
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bool IsCancelled() const
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{
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return cancel_ && *cancel_;
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}
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const QAtomicInt *GetCancelPointer() const
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{
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return cancel_;
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}
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void SetCancelPointer(const QAtomicInt *cancel)
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{
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cancel_ = cancel;
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}
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private:
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void PostProcessTable(const Node *node, const Node::ValueHint &hint, const TimeRange &range, NodeValueTable &output_params);
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TexturePtr CreateDummyTexture(const VideoParams &p);
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VideoParams video_params_;
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const QAtomicInt *cancel_;
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};
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}
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#endif // NODETRAVERSER_H
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