The pool structure is arguably the most important one in the entire API. A pool is a memory management structure with the following attributes.

池结构在整个API里可以说是最重要的一个。池是一个内存管理结构，具有以下属性。

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In memory management technology, we integrated multi-tier memory allocation and type buffer pool to ensure memory allocation more rapidly and easy to use.

在内存管理技术中，提出了多级内存分配结合类型缓存池的方案，使得内存分配能快速而易用。

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We make use of the data management window to organize the memory-caching pool and complete the data scheduling, storage, transmission functions.

利用内容索引表管理所有缓存到磁盘上的媒体数据，完成磁盘缓存数据的存储、读取以及淘汰等功能；

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