A Simplified High Definition Video Encoder Based on The STI CELL Multiprocessor
Independent thesis Basic level (professional degree), 20 points / 30 hpStudent thesis
H.264/AVC is one of a newest and technically best available, state-of-art video coding standard designed to enhance the best-ever coding efficiency, error robustness and network friendliness for broad range of applications. However, the high performance comes at a price of higher computational complexity, which requires extensive powerful hardware.
The new STI Cell Broadband Engine (BE) processor combines PowerPC core augmented with 8 streamlined high-performance SIMD processing engine offers an opportunity to implement the H.264/AVC based high definition encoder without any full custom hardware. In this report, parts of a H.264/AVC video encoder with emphasis of 1080p30 have been designed and implemented on a Cell BE processor. The potential of the Cell BE processor is studied so that kernel subroutine such as motion estimation, transform, quantization and deblocking filtering of H.264/AVC are mapped to the SPE co-processors of Cell BE processor with variety of architectural specific optimization techniques.
This report starts with an overview of video coding technique and then the standard, specifically the H.264/AVC are introduced. Next it goes with the thorough description of Cell BE architecture and its programming toolchain. In later chapter, how the simplified encoder is implemented on the Cell BE processor is further discussed as well as the simulation results are also presented.
Place, publisher, year, edition, pages
Institutionen för systemteknik , 2007. , 86 p.
H.264, Video Coding, Cell Broadband Engine, SIMD, Parallel Programming
IdentifiersURN: urn:nbn:se:liu:diva-8294ISRN: LITH-ISY-EX--07/3895--SEOAI: oai:DiVA.org:liu-8294DiVA: diva2:23129
2006-01-31, Algorithmen, Huset B, 10:00