Key Technologies Of Embedded SWF Decoder Implementation

SWF is popular on the Internet multimedia interactive vector format, also known as Flash. SWF technology based on the website achieved a colorful interactive application interface pleas- ing to the eye. SWF now mature technologies, available resources are quite rich, very suitable for integration of embedded multimedia platform. User interface and mode of operation would tremendous evolution.This paper analysis SWF specification, design the framework and a model of embedded SWF decoder. On this basis, analysts pointed out the technical difficulties of Embedded SWF. Through a combination of SWF specification, we implement a series of optimization, including structural design optimization dictionary reduce memory consumption, and optimize the decoding process to reduce floating point calculations, Graphic Image algorithm optimization to reduce the amount of computation and optimization of inter-frame multiplexing reduce exaggerated, optimizing memory management reduces memory and other debris. These optimization greatly reduce the decoding process of computation and memory consumption, decoders with better performance.Through the decoder performance analysis, the article says further optimize the direction of still images and graphics algorithm optimization, process optimization and inter-frame multiplexing optimization.In order to ensure portability, the system using standard ANSI-C language. Based on the domestic use of the prevailing international standards, design of the independent systems and graphics libraries, standardize the decoder interface with the system to achieve the purpose of not involve a specific operating system, make decoders become an independent generic decoding system.Embedded SWF decoder embedded in a broad platform for the application, include embedded Flash browser plug-in, STB GUI customization, interactive television middleware.