Unified method for optimization of several video coding algorithms on general-purpose processors

A unified method for optimization of video coding algorithms on general-purpose processors is presented. The method consists of algorithmic, code, compiler, and SIMD (Single Instruction Multiple Data) media Instruction Set Architecture (ISA) optimizations. H.263, H.263+ and emerging H.26L are used a...

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Bibliographic Details
Published in3rd International Conference on Information Technology: Coding and Computing: Proceedings 2002: Las Vegas, NV pp. 431 - 438
Main Authors Lappalainen, V., Hamalainen, T.D.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2002
Subjects
Computer architecture
Discrete cosine transforms
Instruction sets
Laboratories
Optimization methods
Optimizing compilers
Streaming media
Video codecs
Video coding
Video compression
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ISBN0769515061
9780769515069
DOI10.1109/ITCC.2002.1000428

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Summary:A unified method for optimization of video coding algorithms on general-purpose processors is presented. The method consists of algorithmic, code, compiler, and SIMD (Single Instruction Multiple Data) media Instruction Set Architecture (ISA) optimizations. H.263, H.263+ and emerging H.26L are used as example cases. For the realization of the unified method, the coding elements in all the codecs are analyzed and optimization techniques suitable for one or several of all the coding elements are presented. Results show that a nine-fold improvement can be obtained in H.26L decoding speed in terms of frames per second with video quality equivalent to a non-optimized implementation.
ISBN:0769515061
9780769515069
DOI:10.1109/ITCC.2002.1000428