A Scheme On Areo-based Audio And Video Real Time Transmission By Android

Currently, Android system is becoming increasingly popular among the airborne environment based audio and video transmission applications, but Android system’s multimedia streaming framework does not provide good support for real-time transmission.The lack of support for some of the real-time transport protocol bring difficulties for the realization of the end to end real-time video transmission. On this issue, this paper mainly focus on solving real-time audio and video transmission problems from single-end to multi-end based on the Android platform,and achieving RTSP/RTP/ RTCP real-time transmission on the Android platform,making it easy for the for real-time audio and video communications between the flight attendants’ Android handheld devices and passengers terminal end.This paper achieved real-time audio and video capture and encoding based on the Android system’s multimedia framework, and accomplish the packeting process in the Java layer according to RFC in the RTP/RTCP protocol standards for H.264 and AAC. At the same time it implemented a RTSP streaming media server in the Java layer. Designed and implemented a C/S mode real-time transmission system framework composed by Android terminals, RTSP server and RTSP client terminal,using RTSP/ RTP/UDP protocols,Desighed and implemented a B/S mode real-time audio and video transmission system framework composed by Android terminal,WEB server and browses,using Http Live Stream protocol.In the B/S model, this paper proposed and validated a new scheme for the transmision of the real-time audio and video.Android terminal serve as a RTSP server,using RTP/UDP to transport to the server, the WEB server is in charge of TS stream’s fragmentation, making it convenient for the media streaming.Both frame models achieve the real-time audio and video communication sessions within onboard airborne LAN systems and Android terminal. In practical, both of the two audio and video transmission solutions provided smooth playback, and have a strong practical value.