面向Android的音视频传输策略的研究  

Reasearch of audio and video transmission strategy for Android

作　　者：冯少奇[1] 巩思亮[1] 陈春明[1] 

机构地区：[1]公安部第三研究所物联网技术研发中心,上海201204

出　　处：《电视技术》2017年第6期9-14,30,共7页Video Engineering

基　　金：公安部技术研究计划项目(2014QZX005)

摘　　要：谷歌发布的Android操作系统为应用层开发者提供了MediaRecoder对象和Media Player对象用于音视频应用的开发,但它们主要针对音视频的摄录和播放需求,无法满足开发者基于摄像头和麦克等硬件设备的实时音视频流化传输需求。因此,在对Android操作系统进行深入研究的基础上,提出了一种高效灵活的音视频传输策略,然后依据此策略设计了一个第三方音视频流化传输组件libavstream。最后基于libavstream设计了一个音视频直播应用BLife,验证了本文所提出策略的可用性和有效性。The Android operating system released by Google provides MediaRecoder and MediaPlayer objects for application-layer developers to develop audio and video applications. However, these objects can only be used in recording and playing but cannot be applied in streaming video and audio based on camera and microphone. Hence, after in-depth study of Android operating system, an efficient and flexible audio and video transmission strategy is proposed in this paper. Then, a third-party libavstream component is designed according to this strategy. Finally, an app based on libavstream called BLife is developed to test the availability and effectiveness of this strategy.

关 键 词：ANDROID 音视频传输 手机直播 

分 类 号：TP37[自动化与计算机技术—计算机系统结构]