| Summary: | 碩士 === 國立中央大學 === 通訊工程學系在職專班 === 104 === Both of the market share of mobile device and media content download by mobile device become higher than other devices. It is more and more important for keeping media stream playing smoothly which requires a mechanism to dynamically deal with the content. At most of environment, users can not change the setting of their networks due to security and bandwidth reasons. Therefore, this thesis tries to utilize the open sources to establish a lite system and takes the HTTP as transmission medium, which can be accessed by users in any kind of environments. This system aims to simplify the user control and make users survey media without any plug-in software.
The system includes numerous open sources. The ffmpeg is responsible for receiving stream, the x264 and AAC are responsible for coding the media, the MP4Box generates the media presentation description (MPD) and splits the media. The MPD carries the description of multiple rates, which assists user to download content according to bandwidth requirement. Nginx is used as platform for communicating with users. This system incorporates several software and utilizes the concept of configurations to create and remove channels dynamically. Users can choose and view channels what they are interested via web browsers.
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