Title :
A 1.94mm2, 38.17mW dual VP8/H.264 Full-HD encoder/decoder LSI for Social Network Services (SNS) over smart-phones
Author :
Chi-Cheng Ju ; Tsu-Ming Liu ; Yi-Hau Chen ; Kun-Bin Lee ; Chia-Yun Cheng ; Hsueh-Te Chao ; Chih-Ming Wang ; Tung-Hsing Wu ; Tin-An Lin ; Han-Liang Chou ; Yu-Kun Lin ; Cheng-Hung Liu ; Wei-Cing Li ; Yi-Hsin Huang ; Tsung-Chuan Ma ; Chun-Chia Chen ; Hue-Min
Author_Institution :
Mediatek Inc., Hsinchu, Taiwan
Abstract :
A first dual-standard video encoder and decoder LSI providing VP8 (i.e. video format of WebM project for use of web´s video) or H.264/AVC video recording and playback simultaneously is implemented with 28nm CMOS and occupies 1.94mm2 of core area. Several area-efficient techniques are realized, leading to 43.6% of area reduction. A new rate control is designed to facilitate the adaptation of video data and frame rates for network services. Two fast algorithms and new bool encoder/decoder are proposed to enhance power efficiency. This chip consumes 28.15mW and 10.02mW of VP8 encoder and decoder average power for 1080p@30fps at 0.9V, respectively.
Keywords :
CMOS integrated circuits; Web services; decoding; large scale integration; mobile computing; smart phones; social networking (online); video coding; video recording; CMOS; H.264-AVC video recording; SNS; Web video; WebM project; area-efficient technique; dual VP8-H.264 full-HD encoder-decoder LSI; power 10.02 mW; power 28.15 mW; power 38.17 mW; power efficiency; size 28 nm; smart-phone; social network service; video data adaptation; video format; voltage 0.9 V;
Conference_Titel :
Solid State Circuits Conference (A-SSCC), 2012 IEEE Asian
Conference_Location :
Kobe
DOI :
10.1109/IPEC.2012.6522611
