The system control according Hi35xx chip features, complete hardware reset of each components, the basic initialization, and carrying out in the initialization of each service module MPP (Media Process Platform media processing platform) system, to initialize and the status of each service module management MPP system, the current version provides information MPP systems, providing chunk of physical memory management.
MPP business before the application starts, it must complete MPP system initialization. Similarly, the application exits after MPP business, but also to complete the MPP system initialization, the release of resources.
1. The video buffer pool
The main provider of video buffer pool chunk of physical memory management capabilities to the media business, responsible for memory allocation and deallocation, give full play to the role of memory buffer pool, so the rational use of physical memory resources in various media processing module. A group of the same size, the physical address of the cache block to form a continuous video buffer pool. You must configure the public video buffer pool before the system initialization. Depending on the service, the number of public buffer pools of different sizes and the number of cache blocks.
2. Binding System
The system provides an interface to bind MPP (HI_MPI_SYS_Bind), i.e., to establish the relationship between them (only the data recipient data source binding) Binding data source via the data recipient. After binding, the data generated by the source data is automatically sent to the recipient.