High-Speed Video Encoding System Based on H.264 and DSP

Chou Chen Wang; Zhi Hao Huang; Han Yen Chen; Jyun Liang Li

doi:10.4028/www.scientific.net/AEF.6-7.416

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HomeAdvanced Engineering ForumAdvanced Engineering Forum Vols. 6-7High-Speed Video Encoding System Based on H.264...

High-Speed Video Encoding System Based on H.264 and DSP

Abstract:

In this paper, a high-speed H.264 encoder based on ADI BF548 Blackfin DSP is proposed. In order to speed up the process of motion estimation (ME) module in H.264, we propose a two-step bit-transform-based normalized partial distortion search (TSB-NPDS) algorithm for fast ME by using the characteristics of pattern similarity matching errors. An initial standard compliant raw-C encoder has been optimized in speed for target processor. In addition, the parallelism between algorithm execution and data movement has been fully exploited using DMA. Experimental results demonstrate that the encoding rate can reach above 30 fps as using QCIF video.

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Periodical:

Advanced Engineering Forum (Volumes 6-7)

Pages:

416-421

DOI:

https://doi.org/10.4028/www.scientific.net/AEF.6-7.416

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Online since:

September 2012

Authors:

Chou Chen Wang, Zhi Hao Huang, Han Yen Chen, Jyun Liang Li

Keywords:

Embedded System, H.264, Motion Estimation, Video Coding

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References

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