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