The Optimization And Functional System Expansion Of HD Editing Machine’s Software

Advances in digital technology promoting the development of videotechnology,the video’s quality becomes more important to customs.It’s hard for thetraditional standard-definition to meet the user’s needs of persuing higher quality ofvideo.In this situation, the high-definition digital television (HDTV) come intobeing.One of indispensable equitments in producting high-definition digitaltelevision programming is HD editing systems.Because the HD editing systemsdevelopment is very complicated,there is rare company in China that has the ablility todevelop HD editing systems.Currently most of equipment used in producting HDTVprogram in china maily depends on importing foreign equipment,so it’s urgent todevelop domectic equipment by ourselves.Firstly, there is a basic introduction for the HD editing machine hardwareconfiguration and software functions, especially giving some functional softwaremodules a detail introduction. After a in-depth understanding of the principles of thesystem,this paper presents a solution to optimize the design and extend the system’sfunction.Just to see the context of video,you have to carry the HD editing systems.it’s notconvenient because of it’s big body.To solve this question,a video player was builtbasing the directshow technology.The player can browse mxf format file offline andplay the mxf format videos.To solve problems such as management of resources in the criticalregion,Communication between multithreading and Simplify data transfer betweenthreads, we choose to use smart pointer,mutexes and condition variables provided byboost library to optimize multi-threaded development.Shareptr pointer Boost libraryincludes having access to resources counting capabilities help developers managing thedestruction of resources, reducing the burden on developers.Message mechanism Qtsignal/slot also simplifies messaging between modules, and use technology to achieve the detection qt storage medium.The chip’s replacement of the HD editing machine causing to redevelop hardchip driver that makes an increase in the latter part of system maintenance costs.Inorder to maximize the reduction of maintenance cost,wo use windriver technology todevelop the driver ofthe analog audio board. It not only reduces the driver’sdevelopment time alose the driver’s development level.