47 lines
944 B
C++
47 lines
944 B
C++
#ifndef VIDEORENDERFRAMECACHE_H
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#define VIDEORENDERFRAMECACHE_H
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#include <QMutex>
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#include "common/rational.h"
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class VideoRenderFrameCache
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{
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public:
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VideoRenderFrameCache();
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/**
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* @brief Return whether a frame with this hash already exists
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*/
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bool HasHash(const QByteArray& hash);
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/**
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* @brief Return whether a frame is currently being cached
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*/
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bool IsCaching(const QByteArray& hash);
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/**
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* @brief Check if a frame is currently being cached, and if not reserve it
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*/
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bool TryCache(const QByteArray& hash);
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/**
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* @brief Return the path of the cached image at this time
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*/
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QString CachePathName(const QByteArray &hash);
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void SetCacheID(const QString& id);
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QByteArray TimeToHash(const rational& time);
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private:
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QMap<rational, QByteArray> time_hash_map_;
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QMutex cache_hash_list_mutex_;
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QVector<QByteArray> cache_hash_list_;
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QString cache_id_;
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};
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#endif // VIDEORENDERFRAMECACHE_H
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