The Research And Implementation Of Network Television Set-top Box Screen Editing

In recent years,network television service is booming.To facilitate the operation of network television and offer a wide variety of content,the need for network television set-top box screen editing system appears.This thesis performs analysis,design and implementation on network television set-top box screen editing system,and presents a complete solution for it.Based on the analysis of the function that set-top box screen editing system should have,this thesis summarizes the overall design of the system.In the overall design chapter,this thesis divides the system into modules according to MVC architecture.The system has five main modules,they are database module,data parse module,data object modules,view module and controller module.The data parse module contains a verify sub-module,the view module contains a rend sub-module and an edit sub-module.Each module has independent function.Modules communicate with each other through interface,and cooperate to complete the function of the screen editing system.And then,this thesis designs and implements each module mentioned above.The design and implementation mainly contains module design,class design,interface design,module interaction and other aspects.In the database module chapter,two types of data that related with screen editing are introduced.In the data parse module chapter,this thesis introduces the parse model,class design and workflow of the module.In the verify module chapter,this thesis introduces two types of verification,and then introduces the class design and workflow of the module.In the data object module chapter,this thesis introduces the overall design,object repository design,class design,interface design and interaction of the module.In the view module chapter,the overall design,interface design and interaction of the module are introduced.In the rend module chapter,this thesis introduces the overall design,screen element rendering workflow,interface design and interaction of the module.In the edit module chapter,this thesis introduces the overall design,two different ways of editing,switch of screen mode,interface design and interaction of the module.In the controller module chapter,this thesis introduces the overall design,interface design and interaction of the module.Moreover,this thesis performs testing on the function points of the screen editing system,the testing result meets expectations.Finally,this thesis makes summarization and points out the future research direction of the topic from the angle of a deeper abstract level of the architecture.