Based On Sd100 Format Program Acquisition Coding System Design And Implementation

With the continuous development and progress of computer and mediatechnology, it is possible that software coding and gradually replace the hardware boardencoding of the program signal acquisition as possible. Collection of software codingsystem can not only improve work efficiency, but also can reduce the cost of theacquisition system, increase the cost of the acquisition system. Therefore, theacquisition with the ability to support multi-format,and using software encodingtechnology,must meet today’s customer needs, but also it will be broad prospects.In this thesis, we select the SD100as an important underlying hardware, SD100have I/O card advantages and it is merely a channel card, we can develop this cardthrough the software development kit for secondary design and function. Afteranalysing the the SD100development kits and the related technologies of softwarecoder, we design and develop a multi-format coding system based on SD100acquisition.In this thesis, the multi-format acquisition coding system based on the SD100’scompleted the following:First of all the thesis analysis the system requirements, the system is divided intothe program signal acquisition subsystem and video file storage management system, sotwo subsystems needs been analysised.Then design and implementation of these two subsystems are described. Programsignal acquisition subsystem, we use the the Mainconcept company’s commercialsoftware code products as the subsystem of the coding part and choose the MicrosoftVS2005and DirectShow as development platform. Video file storage managementsubsystem, we use SQL Server2005as the development environment of this subsystem.At last, we verify the systemby testing the various functional modules in thesystem and we have chieved the function of multi-format acquisition system.