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Research On Streaming Media System In Infinite Network Environment

Posted on:2020-07-21Degree:MasterType:Thesis
Country:ChinaCandidate:C ZhuFull Text:PDF
GTID:2428330620953098Subject:Engineering
Abstract/Summary:PDF Full Text Request
With the change of the times,content sharing service has become one of the habitual lifestyles with the popularity of Internet technology and terminals.This means that the same content will be shared to different terminals in an uncertain time,so the level of streaming media technology determines the quality of the user experience in the whole process.If the end user wants to share the content,he needs to transmit the transmission data to the terminal through the network medium,and then through the decoding process.Because there are many unstable factors in the process of infinite transmission,the quality of terminal playback will be affected to varying degrees.Therefore,in order to make the terminal accept satisfactory data in the process of transmission,a mechanism is needed to adjust the network situation in time.In this paper,the convective media system in infinite network environment will be studied in order to find a timely adjustment scheme.Through the feedback of the transmission parameters by the terminal,the rate and bit rate in the transmission link are adjusted dynamically to adapt to the current changes,so as to ensure the smooth experience of the user.Finally,a streaming media system based on Dss framework is formed,including streaming media server and terminal.Therefore,streaming media server is the basis of streaming media application system,and it is also the main performance embodiment,which all depend on the performance and quality of service of media server.The transmission of the terminal is realized by the real-time transmission protocol of RTSP,RTP,and RTCP.RTSP is used to control sound or image and allow multiple streaming requirements to be controlled at the same time.As a transmission protocol,RTP is responsible for managing the transmission quality exchange control information between the current application processes by controlling the data flow,so as to obtain the feedback information of the data distribution quality and control congestion and flow together with other transmission protocols.As part of the RTP transport protocol,it provides a secure platform for effective transmission of packets.The main work of the terminal is to receive data,feedback the network situation and decode the data.The terminal realizes the communication between the server and the terminal by using JRTPLIB library.FFMPEG open source library realizes understanding code stream data.Therefore,through the use of FFMPEG open source framework on Android,thedisplay function can be realized.Finally,through repeated experiments,the adjustment of the mechanism can adapt to the complex and changeable network conditions,and ensure the reception and display of the terminal data stream.
Keywords/Search Tags:Wireless network, Streaming media, Terminal Server
PDF Full Text Request
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