CacheMemory.h

Go to the documentation of this file.

 
// Copyright (c) 2008-2019 OpenShot Studios, LLC
//
// SPDX-License-Identifier: LGPL-3.0-or-later
 
#ifndef OPENSHOT_CACHE_MEMORY_H
#define OPENSHOT_CACHE_MEMORY_H
 
#include "CacheBase.h"
 
namespace openshot {
    class Frame;
 
    class CacheMemory : public CacheBase {
    private:
        static constexpr int64_t TRIM_THRESHOLD_BYTES = 1024LL * 1024 * 1024; 
        std::map<int64_t, std::shared_ptr<openshot::Frame> > frames;    
        std::deque<int64_t> frame_numbers;  
        int64_t bytes_freed_since_trim; 
 
        void CleanUp();
 
    public:
        CacheMemory();
 
        CacheMemory(int64_t max_bytes);
 
        // Default destructor
        virtual ~CacheMemory();
 
        void Add(std::shared_ptr<openshot::Frame> frame);
 
        void Clear();
 
        bool Contains(int64_t frame_number);
 
        int64_t Count();
 
        std::shared_ptr<openshot::Frame> GetFrame(int64_t frame_number);
 
        std::vector<std::shared_ptr<openshot::Frame>> GetFrames();
 
        int64_t GetBytes();
 
        std::shared_ptr<openshot::Frame> GetSmallestFrame();
 
        void Touch(int64_t frame_number);
 
        void Remove(int64_t frame_number);
 
        void Remove(int64_t start_frame_number, int64_t end_frame_number);
 
        // Get and Set JSON methods
        std::string Json(); 
        void SetJson(const std::string value); 
        Json::Value JsonValue(); 
        void SetJsonValue(const Json::Value root); 
    };
 
}
 
#endif