Streaming Media Middleware And Implementation

The streaming media is timed video information that is transmitted in network by streaming technology. With streaming media technology applied widely, Streaming media middleware should become a new and hot point in information technology development, which provides inter-connection and inter-operation for developer and makes developers not focus on the transmission of network and control, Also, which provides direct support, such as collection, processing, playback. In a word, the design streaming media middleware must provide framework of collection, processing, transmission, control, and playback and related system services, such as streaming protocol for distributed multimedia applications.Firstly, this thesis analyzes elements of middleware in brief, technology of streaming media, reference standards for streaming media middleware. What's more, the composition of the DirectShow framework and the operating mechanisms is analyzed comprehensively. Aimed at the inadequate DirectShow, streaming media middleware is clarified, design and realization of a framework and streaming protocol RTP/RTCP in system services.Bing designed and realized the streaming media middleware consists of two main parts: basic framework and system services. The former supplies the media gathering, processing, transmission, control, and playback, five major functions. DirectShow is a mature multimedia development framework which offers he outstanding support in multi-media collection, processing, playback. But lack of support in the media transmission, and control the transmission of information and control of distributed components. By function expansion of Microsoft DirectShow framework in the multimedia transmission and control, a network streaming media applications middleware is realized.This middleware add a network filter named NetFilter , which completes media transmission and control information between nodes. Control between nodes uses COM distributed components and Web Service technology, Communication between...