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Optimization for H.264/AVC De-blocking Filter on the TMS320C64x+ DSP  

Lee, Jin-Seop (Dept. of Embedded Software Engineering, Kwangwoon University)
Kang, Dae-Beom (Samsung Electronics)
Sim, Dong-Gyu (Dept. of Computer Engineering, Kwangwoon University)
Lee, Soo-Youn (Dept. of Computer Engineering, Kwangwoon University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.48, no.2, 2011 , pp. 41-52 More about this Journal
Abstract
It is important to reduce computational complexity of de-blocking filter for real-time implementation, because it accounts for a great part of total computational complexity of the decoder. Because there are a lot of conditional branches and memory accesses in a decoding loop, it is not easy to speed up the de-blocking filter. Therefore, this paper presents a new algorithm of de-blocking filter minimizing conditional branches and memory accesses. The proposed structure of de-blocking filter enables filter operation to parallelize by software pipelining. The proposed optimization method was implemented on a TMS320DM6467 EVM board and we achieved approximately 46% cycle reduction, compared with that of FFmpeg.
Keywords
H.264/AVC; TMS320C64x+ DSP;
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Times Cited By KSCI : 1  (Citation Analysis)
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