ActiveFramePool Class Reference

ActiveFramePool implemented a LRU cache to keep tracking the most recent accessed key frames A key frame will be unloaded if it's not accessed for a while (at the end of cache list) The ActiveFramePool will be updated whenever Editor::scrubTo() gets called. More...

#include <activeframepool.h>

Inheritance diagram for ActiveFramePool:

Public Member Functions
void	put (KeyFrame *key)
void	clear ()
void	resize (quint64 memoryBudget)
bool	isFrameInPool (KeyFrame *)
void	setMinFrameCount (size_t frameCount)
void	onKeyFrameDestroy (KeyFrame *) override

Private Types
using	list_iterator_t = std::list< KeyFrame * >::iterator

Private Member Functions
void	discardLeastUsedFrames ()
void	unloadFrame (KeyFrame *key)
void	recalcuateTotalUsedMemory ()

Private Attributes
std::list< KeyFrame * >	mCacheFramesList
std::unordered_map< KeyFrame *, list_iterator_t >	mCacheFramesMap
quint64	mMemoryBudgetInBytes = 1024 * 1024 * 1024
quint64	mTotalUsedMemory = 0
size_t	mMinFrameCount = 15

Detailed Description

ActiveFramePool implemented a LRU cache to keep tracking the most recent accessed key frames A key frame will be unloaded if it's not accessed for a while (at the end of cache list) The ActiveFramePool will be updated whenever Editor::scrubTo() gets called.

Note: ActiveFramePool does not handle file saving. It loads frames, but never writes frames to disks.

Definition at line 33 of file activeframepool.h.

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The documentation for this class was generated from the following files:

• core_lib/src/activeframepool.h
• core_lib/src/activeframepool.cpp