一种高性能的H.264变换编码IP设计

A High-Performance Transform Coding IP Design for H.264

H.264是ITU与ISO联合共同开发的具有高编码效率、高压缩质量的视频新标准。H.264采用了4×4块的无乘法整数变换编码算法,有效地降低了编解码的运算量,且避免了反变换的误匹配问题。文章通过详细分析H.264的整数DCT变换及Hardmard变换的算法,提出了一种高性能的变换编码的硬件IP设计,通过Modlesim仿真和DC综合能较好地达到预先设计要求。

H.264 is the new video coding standard established by ITU and ISO, which has high coding efficiency and high compres-sion quality. The 4×4 transforms in H.264 can be computed exactly in integer arithmetic without multiplication, thus minimizing computational complexity and avoiding inverse transform mismatch problems. This paper proposes a high-performance transform coding IP design with a detailed analysis on the algorithm of the integer DCT transform and Hardmard transform, and the result of simulation by Modlesim and synthesis by Design Compiler shows that this system meets the design requirement.