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Camera系统 | Android Camera 原理之拍照流程ZSL优化方案 | 影像技术栈 #19

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GeoffBao opened this issue Oct 4, 2022 · 3 comments

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@GeoffBao
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GeoffBao commented Oct 4, 2022

https://camerastacker.com/2022/10045495.html

转载:Android Camera 原理之拍照流程zsl优化方案_liujun3512159的博客-CSDN博客_android camera优化
一、背景介绍拍照的手机基本的功能,优化拍照性能,主要是优化点击拍照到生成照片的这一段时间,看

@GeoffBao
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GeoffBao commented Oct 4, 2022

ZSL(zero shutter lag):零延时拍照。

普通模式:
p1

@GeoffBao
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GeoffBao commented Oct 4, 2022

1.开始预览,出预览帧,这个时候已经正常预览了
2.这个时候按下shutter,开始拍照,开始拍照的时候,预览流停止,
3.拍照的时候要做一系列的动作,af对焦,准备拍照,曝光,
4.拍照流数据回调,这个时候是raw数据,然后开始对raw数据进行编码
5.编码成为JPEG,然后保存,此时拍照完成,从新开始预览。

传统的快照,也就是在拍照的时候,预览是停止的。
拍照结束后,预览将在C2D模块之后,重新开始预览

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