itsmattkc
40b3879440
Major refactoring work to try sharing as much code as possible between the video renderers and audio renderers, as well as make them as platform-independent as possible.
95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
#ifndef RENDERWORKER_H
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#define RENDERWORKER_H
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#include <QObject>
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#include "node/block/block.h"
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#include "node/node.h"
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#include "decodercache.h"
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class RenderWorker : public QObject
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{
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Q_OBJECT
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public:
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RenderWorker(DecoderCache* decoder_cache, QObject* parent = nullptr);
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Q_DISABLE_COPY_MOVE(RenderWorker)
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bool Init();
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bool IsStarted();
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bool IsAvailable();
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public slots:
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void Close();
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void Render(NodeDependency path);
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virtual void RenderAsSibling(NodeDependency dep) = 0;
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signals:
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void RequestSibling(NodeDependency path);
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void CompletedCache(NodeDependency dep);
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protected:
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/**
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* @brief Returns the block in a sequence that is active at a given time
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*
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* Blocks are connected to each other previous/next to create a BlockList or a sequence of blocks. The block that
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* is currently "active" depends on the time and only one block in a track can be active at any given time.
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*
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* Calling this function with a block and a time will traverse the provided block's track to find the block that will
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* be active at that time. The block must be valid (non-null) and the time must be valid (>= 0).
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*
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* This function may return the same block that it was called with. It will never return nullptr.
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*/
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Block *ValidateBlock(Block* block, const rational& time);
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/**
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* @brief Returns all the blocks that could be active within a range of time
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*
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* Similar to ValidateBlock() but rather than returning one block for a single time, this function returns a list of
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* blocks that could be active within a range of time.
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*
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* The block must be valid (non-null) and the time must be valid (>= 0).
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*
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* The list will always contain at least one entry.
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*/
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QList<Block*> ValidateBlockRange(Block* n, const TimeRange& range);
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virtual bool InitInternal() = 0;
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virtual void CloseInternal() = 0;
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virtual void RenderInternal(const NodeDependency& path);
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virtual bool OutputIsAccelerated(NodeOutput *output) = 0;
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virtual QVariant RunNodeAccelerated(NodeOutput *output) = 0;
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StreamPtr ResolveStreamFromInput(NodeInput* input);
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DecoderPtr ResolveDecoderFromInput(NodeInput* input);
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QList<Node*> ListNodeAndAllDependencies(Node* n);
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QList<NodeInput*> ProcessNodeInputsForTime(Node* n, const TimeRange& time);
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virtual QVariant FrameToValue(FramePtr frame) = 0;
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QVariant ProcessNodeNormally(const NodeDependency &dep);
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DecoderCache* decoder_cache();
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QAtomicInt working_;
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private:
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bool started_;
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DecoderCache* decoder_cache_;
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};
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#endif // RENDERWORKER_H
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