目录
前言： .............................................................................................................................................. 4
1:Hi35xx 系列芯片 MPP 构架 .......................................................................................................... 5
1.1 概述 ................................................................................................................................... 5
1.2 整体软硬件构架 ................................................................................................................ 5
1.3 海思媒体处理平台架构 .................................................................................................... 6
1.4 MMZ 与模块绑定 ............................................................................................................... 8
1.5 HiMPP 支持的绑定关系 ................................................................................................... 9
1.6 函数约定说明 .................................................................................................................. 10
1.7 MPP 优缺点 ...................................................................................................................... 11
1.7.1 MPP 优点 ............................................................................................................... 11
1.7.2 MPP 缺点 ............................................................................................................... 11
2: MPP 和 UNF 对比 ....................................................................................................................... 11
3:3798 芯片 UNF 处理构架 ........................................................................................................... 12
3.1 应用架构.......................................................................................................................... 12
3.2 3798SDK 概览（功能介绍） ......................................................................................... 13
3.3 3798 内存管理 .................................................................................................................. 13
3.3.1 Mmz 内存 .............................................................................................................. 13
3.3.2 解码 vid 内存 ........................................................................................................ 14
3.4 3798 模块.......................................................................................................................... 14
DEMUX： ........................................................................................................................ 14
VI: .................................................................................................................................... 14
VDEC ................................................................................................................................ 15
SYNC： ............................................................................................................................ 15
DISPLAY：显示设备 ........................................................................................................ 15
WINDOW：显示通道 ..................................................................................................... 15
SO（ Subtitle Output） ................................................................................................. 16
PDM ................................................................................................................................. 17
3.5 3798 和 NVR 模块使用方面区别： ................................................................................. 20
4: 3798 代码祥看 ........................................................................................................................... 20
4.1 分析方法.......................................................................................................................... 20
4.1.1：查看代码，静态分析应用层，驱动层实现方法 ............................................. 20
4.1.2：图示静态分析函数调用关系 ............................................................................. 21
4.1.3：图示动态分析函数调用关系：库函数，系统调用，内核调用 ..................... 21
4.2 基础模块：hi_media hi_mmz hi_common..................................................................... 21
Common .................................................................................................................................. 21
4.2.1 基本通用模块应用层接口 common/api ............................................................. 22
4.2.2 基本通用模块驱动接口 common/dev ................................................................ 22
4.2.3 业务模块应用层通用组件 source/component ................................................... 30
4.3 海思专用组件 .................................................................................................................. 30
4.3.1 海思 MSP 模块应用层接口 source/msp/api ....................................................... 30
4.3.2 海思 MSP 模块驱动层接口 source/msp/drv/ ..................................................... 33
VENC ................................................................................................................................ 33
