NDLI: A multi-frame and multi-slice H.264 parallel video encoding approach with simultaneous encoding of prediction frames

Content Provider	IEEE Xplore Digital Library
Author	Franche, J.-F. Coulombe, S.
Copyright Year	2012
Description	Author affiliation: Department of Software and IT Engineering, École de technologie supérieure, Université du Québec, Montréal, Canada (Franche, J.-F.; Coulombe, S.)
Abstract	This paper describes a novel multi-frame and multi-slice parallel video encoding approach with simultaneous encoding of predicted frames. The approach, when applied to H.264 encoding, leads to speedups comparable to those obtained by state-of-the-art approaches, but without the disadvantage of requiring bidirectional frames. The new approach uses a number of slices equal or greater than the number of cores used and supports three motion estimation modes. Their combination leads to various tradeoffs between speedup and visual quality loss. For an H.264 baseline profile encoder based on Intel IPP code samples running on a two quad core Xeon system (8 cores in total), our experiments show an average speedup of 7.20×, with an average quality loss of 0.22 dB (compared to a non-parallelized version) for the most efficiency motion estimation mode, and an average speedup of 7.95×, with a quality loss of 1.85 dB for the faster motion estimation mode
Starting Page	3034
Ending Page	3038
File Size	476531
Page Count	5
File Format	PDF
ISBN	9781457714146
e-ISBN	9781457714153
DOI	10.1109/CECNet.2012.6202018
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-04-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Real time systems Motion estimation Instruction sets Bit rate H.264 Streaming media Encoding Multi-core processor High definition video Parallel algorithms
Content Type	Text
Resource Type	Article

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