H.264中逆量化逆变换的高层次综合实现

High level synthesis implementation of inverse quantification and inverse transformation in H.264

逆变换与逆量化是H.264解码器中的一个重要环节,由于其算法复杂度较高,利用传统的RTL方法设计其硬件电路需要消耗大量的设计时间并经历复杂的验证过程。提出了采用高层次综合的方法进行高效快速的逆变换逆量化硬件模块设计。测试结果表明,该方法可以较快地得到针对FPGA平台的逆变换逆量化硬件模块,同时可对其设计空间进行有效探索,得到满足不同需求的硬件模块。

Inverse transformation and inverse quantization is an important process in H.264 decoder, the complexity of the algorithm leads to a long design time and complex verification procedure when designing in conventional way with RTL language. High level synthesis in involved in this paper to illustrate efficient inverse transformation and inverse quantization hardware design. The results show that the design method in this paper could achieve the hardware block for the targeted FPGA platform efficiently and explore the design space of the hardware with different high level synthesis settings at the same time to fulfil the different requirements for different designs.