Design and Optimization of Camera HAL Layer Based on Android

Abstract

Nowadays, in the field of mobile and communication, with the rapid popularization and application of Internet and network, and the continuous expansion to the family field, the trend of integration of consumer electronics, computer and communication (3C) is becoming increasingly obvious, and embedded system naturally becomes a research hotspot. The embedded operating system Android has been widely used in mobile devices, such as smart phones, smart watches and so on. Our design is based on the Android platform to optimize and improve Camera HAL. This design is applied to the development of the Android system, the design of the Camera subsystem, the description of the Camera subsystem from the structure, function and data flow, and then proceed to structural optimization. This design uses TI AM335x as the hardware platform, based on Android system, designed and implemented the Android Camera hardware abstraction layer and Camera subsystem. At the end of the development, after the actual experimental test, the development of the system achieved the expected function and worked well.