高通chiusecase流程分析.pdf_camX

5星 · 超过95%的资源需积分: 48 2.8k 浏览量更新于2023-03-16 评论 24 收藏 2.91MB PDF 举报

身份认证购VIP最低享 7 折!

领优惠券(最高得80元）

资源详情

资源评论

资源推荐

高通 chi usecase 流程分析

概要 ........................................................................................................................................................................................................................................................................................... 1

一．高通 ISP 架构及数据流程 ................................................................................................................................................................................................................................................ 1

1．高通 spectra ISP 架构 ................................................................................................................................................................................................................................................. 1

2 . 双摄和 MFNR 多帧降噪 ISP 中的数据流 ................................................................................................................................................................................................................... 3

二．高通 chi usecase xml 分析 ................................................................................................................................................................................................................................................ 5

三．Chi 代码结构流程分析 ................................................................................................................................................................................................................................................... 13

1.chxadvancedcamerausecase.cpp 分析 ......................................................................................................................................................................................................................... 16

1.1 CameraUsecaseBase::Initialize()分析 ................................................................................................................................................................................................................ 18

1.2 CameraUsecaseBase:: ExecuteCaptureRequest ()分析 ..................................................................................................................................................................................... 19

2.chxusecasemc.cpp 分析 ............................................................................................................................................................................................................................................... 21

2.1. AdvancedCameraUsecase::Initialize()分析 ....................................................................................................................................................................................................... 22

2.2 AdvancedCameraUsecase::ExecuteCaptureRequest()分析 ............................................................................................................................................................................ 27

3. chxfeaturehdr.cpp ........................................................................................................................................................................................................................................................ 30

3.1 FeatureHDR::Initialize() ...................................................................................................................................................................................................................................... 32

3.2 FeatureHDR::OverrideUsecase() ........................................................................................................................................................................................................................ 32

3.3 FeatureHDR::ExecuteProcessRequest() ............................................................................................................................................................................................................. 32

3.4 FeatureHDR::ProcessResult() ............................................................................................................................................................................................................................. 32

概要

本文分为三大部分：

第一部分简述高通 isp 架构及数据流程，

第二部分分析 usecase xml

第三部分分析 uscase 代码流程

一．高通 ISP 架构及数据流程

1．高通 spectra ISP 架构

高通 spectra isp 主要分三大块: IFE, BPS, IPE

IFE：Image front-end endine 图像前端处理单元

1.主要进行preview流及video视频流前端bayer图像的ISP处理

2. 3A stat 统计管理和处理

3. 提供 HVX( Hexagon Vector eXtensions 宽幅向量处理 Hexagon 向量扩展)处理流的输入输出管道