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A performance characterization of high definition digital video decoding using H.264/AVC

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10.1109/IISWC.2005.1525998
 
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hdl:2117/112371

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Álvarez Mesa, MauricioMés informació
Salamí San Juan, EstherMés informacióMés informacióMés informació
Ramírez Bellido, Alejandro
Valero Cortés, MateoMés informacióMés informacióMés informació
Document typeConference report
Defense date2005
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
H.264/AVC is a new international video coding standard that provides higher coding efficiency with respect to previous standards at the expense of a higher computational complexity. The complexity is even higher when H.264/AVC is used in applications with high bandwidth and high quality like high definition (HD) video decoding. In this paper, we analyze the computational requirements of H.264 decoder with a special emphasis in HD video and we compare it with previous standards and lower resolutions. The analysis was done with a SIMD optimized decoder using hardware performance monitoring. The main objective is to identify the application bottlenecks and to suggest the necessary support in the architecture for processing HD video efficiently. We have found that H.264/AVC decoding of HD video perform many more operations per frame than MPEG-4 and MPEG-2, has new kernels with more demanding memory access patterns and has a lot data dependent branches that are difficult to predict. In order to improve the H.264/AVC decoding process at HD it is necessary to explore a better support in media instructions, specialized prefetching techniques and possibly, the use of some kind of multiprocessor architecture.
CitationÁlvarez, M., Salamí, E., Ramírez, A., Valero, M. A performance characterization of high definition digital video decoding using H.264/AVC. A: IEEE International Symposium on Workload Characterization. "Proceedings of the 2005 IEEE International Symposium on Workload Characterization, IISWC-2005". Austin, TX: Institute of Electrical and Electronics Engineers (IEEE), 2005, p. 24-33. 
URIhttp://hdl.handle.net/2117/112371
DOI10.1109/IISWC.2005.1525998
ISBN0-7803-9461-5
Publisher versionhttp://ieeexplore.ieee.org/document/1525998/
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