Research On Key Technologies Of Multi-screen Interactive Media Service System In Community Environment

Nowadays,mobile smart devices and embedded smart home systems have taken the leap forward of the Internet and the Internet of Things technology.Whether it is to improve people's production efficiency or even enrich their spiritual entertainment life,it have a profound impact.In particular,hardware devices represented by mobile phones,TV boxes,tablet computers,and smart TVs,are continuously changing the basic model of family life.As 5G technology is about to become widespread,it can be foreseen that the current hot audio and video fields,such as video calls,remote conferences and short video applications,will usher in a new wave of development.As far as devices are concerned,each new or iterative smart device usually focuses on solving a specific problem,and there is very little interaction and communication with each other.This makes it difficult to give full play to the advantages of individual devices.In family life,if you want to take advantage of the characteristics of a device and simplify the use process or the difficulty of getting started,the user experience in the original mode is difficult to satisfy.For example,to take advantage of the large screen size and high resolution of a TV,and to enjoy the portability and ease of operation of a mobile phone,it is necessary to achieve interconnection between devices.In order to solve this pain point of demand,this article proposes a method that can share resources between devices,use a portable device mobile phone to control media communication and media application services performed on other devices,and design and implement a multi-screen interactive media service system in a community environment.This application implements end-to-end video call functions,multi-person remote video conference functions,and special short-term video functions.In order to interconnect devices,functions of searching and connecting devices are developed.Other smart devices in the local area network are discovered through mobile phones.The network long-distance connection has sent instructions to control the device,and realtime streaming technology can be used to achieve multi-screen sharing of media files.This system implements 5 major modules according to business scenarios,and the media communication module is used to implement video call and multi-person conference functions.The device control and management module implement the multicast-based device search and discovery function and the establishment of a long-term device connection,and the controller sends instructions to manage and respond to the device function.The media application service module can preview and capture of video,and add beauty filters,stickers and short video effects,and use FFMPEG for video editing.Finally,a streaming media server is implemented,which uses the RTMP protocol to push real-time media streams and play them on the receiving end.After passing the complete system test,functional test and non-functional test,each function meets the design expectations and completes the target planning.