The Implementation And Optimization Of H.264/AVC Decoder

Nowadays, great changes have taken place in the network everyday. IPTV is having been a hotspot in China. Which of standard is to be choosed? H.264 is one of the choices because of its high compression efficiency.In this paper, we study and analyze the computational complexity of a software-based H.264/AVC baseline profile decoder. Our analysis is based on determining the number of basic decoding subfiinctions. Using the measured frequencies, estimates of the decoder for the specified hardware platforms can be determined. To estimate the computational complexity, it is important to understand its two major components: time complexity and space (or storage) complexity. Time complexity is measured by the approximate number of operations required to execute a specific implementation of an algorithm. Storage complexity is measured by the approximate amount of memory required to implement an algorithm. Then, for each of the most computationally intensive subfiinctions of the decoder, we present an analysis of the factors that affect their complexity.At last, the paper present some methods to optimize the decoder based...