Realization And Verification Of Discrete Cosine Transform Based On VC-1Video Standard

In recent years, mobile communications and the Internet has become the fastest-growingand the most attractive prospects businesses. Their growth rate has not been anticipated. Thereare massive video need to process and storage in the mobile Internet. The demand of videoprocessing capability of the mobile Internet terminal such as mobile phone is increasing dayby day. Microsoft’s high-definition video standard VC-1combines the advantages of theMPEG and H.264, has very outstanding performance.This article is aimed to design an IP soft-core with VC-1integer DCT (Discrete CosineTransform). There are two aspects of work: one is the integer DCT algorithm analysis and IPsoft-core design; the other is FPGA verification of the integer DCT IP core. The structure andcharacteristics of the8×8and4×4integer DCT matrix are studied, and then are extended to8×4and4×8DCT. The multiplication.is replaced by addition and arithmetic bit shiftoperator in matrix transformation. On this basis, the2-dimensional integer DCT transformhardware architecture based on the ranks of the separation program. The hardware structurewhich implements2-dimensional integer DCT through RCM is analyzed.The RTL code based on VC-1integer DCT is completed with Verilog HDL andsimulated by Cadence NC-Verilog simulator. The simulation results demonstrate thecorrectness of the design features. Finally, the2-dimensional integer DCT IP soft core areverified in FPGA. The research results have laid a good foundation for the furtherdevelopment of the IP core library.