Ultra Fast H.264/AVC to HEVC Transcoder

Author

Tong Shen ; Yao Lu ; Ziyu Wen ; Linxi Zou ; Yucong Chen ; Jiangtao Wen

Author_Institution

Tsinghua Univ., Beijing, China

fYear

2013

fDate

20-22 March 2013

Firstpage

241

Lastpage

250

Abstract

The emerging High Efficiency Video Coding (HEVC) standard achieves significant performance improvement over H.264/AVC standard at a cost of much higher complexity. In this paper, we propose a ultra fast H.264/AVC to HEVC transcoder for multi-core processors implementing Wave front Parallel Processing (WPP) and SIMD acceleration, along with expedited motion estimation (ME) and mode decision (MD) by utilizing information extracted from the input H.264/AVC stream. Experiments using standard HEVC test bit streams show that the proposed transcoder achieves 70x speed up over the HEVC HM 8.1 reference software (including H.264 encoding) at very small rate distortion (RD) performance loss.

Keywords

computational complexity; motion estimation; multiprocessing systems; parallel processing; transcoding; video coding; HEVC HM 8.1 reference software; HEVC test bitstreams; HEVC transcoder; MD; ME; RD performance loss; SIMD acceleration; WPP; high efficiency video coding standard; mode decision; motion estimation; multicore processors; rate distortion performance loss; ultra fast H.264-AVC; wavefront parallel processing; Acceleration; Encoding; Parallel processing; Software; Standards; Transform coding; Video coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Data Compression Conference (DCC), 2013

Conference_Location

Snowbird, UT

ISSN

1068-0314

Print_ISBN

978-1-4673-6037-1

Type

conf

DOI

10.1109/DCC.2013.32

Filename

6543060