Business Middleware Streaming Media Distribution Strategy Realization

With the rapid development of streaming media technology in China, and the steady increase in broadband penetration, more and more users begin to enjoy multimedia services over broadband networks more frequently. This not only promoted the rapid growth of related industries, such as digital TV and IPTV, but also brought some new problems. In the streaming media transmission, the video bit rate increases along with the increasing needs of users, and coupled with the increasing complexity of the overall network environment, that makes the original media distribution strategy very difficult to meet the currently large-scale, high-quality service demand. So an urgent optimization and improvement is needed. Meanwhile, as the streaming media on network gradually becomes a trend, more and more software and hardware companies begin to join them and do some research and development. Although they have developed some related application services, but these products mostly exposes features duplication, poor compatibility, non-cooperation and other shortcomings, which greatly reduced their market value. Therefore, these enterprises need a unified and compatible development environment to provide a common interface and communication protocol functions, which enables mutual collaboration and overall service quality improvement.Based on the above two requirements and the existing research results, we first analyze, design and implement an encapsulation for the function of each module in streaming media server, and position it into one layer of the streaming application middleware. It provides a unified, compatible, interoperable development environment for different developers. Then, for the need of transmitting high bit-rate video in a complex network environment, this paper proposes three media distribution strategy with different principles. Also, to further assess the effect of different data distribution strategies, we use a variety of media sources in a number of experiments, and do a detailed analysis on quality of service of transmitting different bit rate sources using different media distribution strategies. The results showed that the Datasize-based transmission strategy not only can guarantee a complete transmission of media data to the client, enable normal display, but also can greatly control the volatility of the sending speed and the remaining amount of data in client buffer, which will bring a great help for the actual deployment in future.