| With the progress of society and the increasing demand of the market, multimedia technology is developing rapidly. Traditional method of media production is gradually taken place by new method based on digital technology. Especially, with the boost of high-definition television in recent years, research on HDTV program production technology becomes hotspot, and has significant practical value and broad application prospect.In view of the characteristic of networked HD Non-linear Editing Application, the article proposed and implemented a new method of material acquisition which is based on JPEG2000 compression standard and takes full advantage of its resolution scalable decompression. The module helps to realize the system goal of fetching source media at different data rates in the work flow of network based editing. Test proved that the system supported by the module ran stably and effectively, and utilized CPU and network capacity appropriately. The solution has several advantages over traditional solutions commonly based on"dual rate network", and has applied for national invention patent. |
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