Summary: As the fusion of mobile Internet and network video continues to take place at an increasingly rapid speed, there are growing problems related to the compatibility between video transport protocols produced by different mobile terminals and that produced by different formats. As it is supported by Cloud Computing, OTT+CDN has become the major means by which this problem can be tackled. Inspur’s OTT overall solutions have been created for radio and television operations. They have provided comprehensive, overall video solutions, including the injection of media assets, packaging, distribution, production management, pushing flow, multiple terminal adapters, streaming adaptability, etc. It enables its users to acquire various video applications and services without restraint, and achieves interconnection and integration between the content/services offered by TVs, PCs, and smart mobile terminals.
As the fusion of mobile Internet and network video continues to take place at an increasingly rapid speed, there are growing problems related to the compatibility between video transport protocols produced by different mobile terminals and that produced by different formats. As it is supported by Cloud Computing, OTT+CDN has become the major means by which this problem can be tackled. Inspur’s OTT overall solutions have been created for radio and television operations. They have provided comprehensive, overall video solutions, including the injection of media assets, packaging, distribution, production management, pushing flow, multiple terminal adapters, streaming adaptability, etc. It enables its users to acquire various video applications and services without restraint, and achieves interconnection and integration between the content/services offered by TVs, PCs, and smart mobile terminals.
Market Background of OTT:
In recent years, Mobile Internet has become the business that is developing at the fastest pace, with the greatest market potential, as well as the most alluring prospects. More and more people have gained high-speed access to the Internet during this ever-changing process, and many others have acquired emergent information and have handled businesses. Video is one of the major applications hosted on the Internet; the number of its users is increasing at a prominent speed and its coverage is constantly improving. Network video has become an import channel through which people get films, television programs, and news video. Its market value is also soaring. It is predicted that in 2014, the market value of network video will reach 16 billion yuan.
From above, one can see that the combination of Mobile Internet and video conforms to the expected future trends. Yet, the diversification of mobile terminals has led to multiple bottlenecks. For instance, transport protocols are not uniform, and there is a frequent need to convert formats whilst video files are disseminated. All these signify that OTT+CDN have become mainstream in the mobile era.
In addition to broadband and networking equipment, Cloud Computing is another significant technological factor that further promotes the development of OTT-TV. Cloud Computing provides a resourceful sharing platform for its users, so that they can enjoy unrestricted access to various kinds of applications and services. For the operators, Cloud Computing lends back-stage support to content and business operations. It helps operators to transform their companies, so that they continue to develop their business and terminals and further towards diversification. TV screens, as the main terminals of family video, will be inevitably assimilated into the Internet eco-system. There is a growing “internetization” of the broadcasting and telecommunication industries, and with the support of Cloud Computing and the Internet of Things, companies will witness the interconnection and fusion of the contents and business offered by TVs, PCs, and smart mobile terminals.
The Trend of Stream Media:
With the development of IT, people make higher and higher demands on the means by which they acquire multi-media files. The prior technology used to download information directly to local file systems can no longer meet people’s requirement for faster acquisition of information. Recently-adopted streaming technology has opened up a new realm for people to watch real-time multi-media information.
Streaming media makes use of streaming technology to access media files via a network transmission, meaning that the client can enjoy the video whilst downloading it. Common streaming technology is achieved by the cooperation between the encoding at the head end, the network server at the middle and the player at the client end. Streaming media technology has also been developing in these three aspects.
The current mainstream streaming media technology is divided into real-time streaming technology and progressive streaming technology. The main transport protocol of real-time streaming technology is RTSP, which makes the IP network transmit multi-media files efficiently. In this way, the frame will be lost in the network congestion and thus decrease the quality of the images for the client. Since this technology needs special streaming media servers, there is some limitation in the application. However, progressive streaming technology (which is based on the HTTP protocol) creates the cache in the client to guarantee the quality and fluency of the play. There is also no need for special streaming media servers. Instead, the WEB server (which supports the HTTP protocol) is enough for this technology. At present, the latest streaming media technology is the adaptive streaming technology. Compared with the progressive streaming technology, it supports the multiple rates and lets the client select the appropriate ray-files for live or demand broadcast according to the condition of the network. The likely structure of streaming media video development is illustrated as follows:
Summary of OTT:
Inspur has been dedicated to disseminating network streaming media technologies and developing broadcasting technologies for many years. Particularly in recent years, Inspur has come up with diverse, unique solutions to network video broadcasting. It has created responses to different operating scenarios and the ever-changing Internet environment, and has completed the upgrade from traditional streaming media to the OTT mode.
OTT overall solutions are provided by Inspur for radio and television operators. They are actually comprehensive and integral video solutions, and include the injection of media assets, packaging, distribution, production management, pushing flow, multiple terminal adapters, streaming adaptability, etc. Therefore, the high-quality needs of the client can be satisfied.
The OTT system includes content production, content storage/encryption, content distribution, and all aspects of the content play and terminal display, which can provide solutions based on the telecommunication level. At the same time, the OTT system is an open system which can provide systematic and integrative capabilities based on middle-ware forms. This means that third-party products will be integrated, such as the DRM (digital rights management) system, set-top boxes and content coders etc. In terms of functionality, OTT as a whole can be divided into three parts: the operation support layer, the media platform layer and the terminal layer.
System Advantages of OTT
The OTT system design follows the principles of international and industry standards. It gives full consideration to SDP and video websites working in the field of OTT, and the successful OTT practices and design ideas used by NGOD architectures. It supports the norm of NGOD and technical regulations placed on interactive television systems.
The OTT system widely adopts the architecture designs used by Web services, which is based on the SOAP protocol. Its media asset management interface also complies with the latest interface ADI specifications. At the same time, it supports applications that conform to the standard W3C specifications.
The OTT system fully considers the linear and smooth expansion of the system. It uses all kinds of memory/cache mechanisms to reduce the costs of authentication and authorization and the number of couplings needed for portal access; for example, it ensures the linear expansion of all parts. It uses a flexible CDN distribution mechanism, to ensure low coupling ISS expansions. It also uses a combination of ORACLE RAC technology in its database design, thus ensuring the linear expansion of database link access numbers. OTT systems can effectively avoid the occurrence of a single point of failure and ensure that the success rate of the users’ business access remains at 99.99%.
The OTT system ensures the safety and reliability of the system via the inclusion of a redundant backup mechanism at all levels.
Whilst using the OTT system’s media asset system and content management system, the platform’s multimedia resources can be managed and scheduled. The platform’s network management system can manage the platform’s equipment and support the management function governing hierarchical permission. The OTT network management system offers precise manageability over the terminal.
OTT System maintenance is easy. The network management system provides a unified interface and is able to manage and maintain remote devices through this interface (through the use of real-time monitoring, remote restarts, etc.). The platform is easy to analyze and test, simple to use when finding and locating faults, and it ensures fault isolation through good system design.