软硬件协同视频编码器中码率控制的实现

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英文篇名：Implementation of High Speed Shared Memory in Rendering Pipeline 作者：陈瑞阳 英文作者：CHEN Ruiyang;Shanghai Zhaoxin Semiconductor Co.,Ltd; 关键词：集成电路设计 ; 视频编码器 ; 码率控制 ; HEVC ; 软硬件协同 英文关键词：IC design;;video encoder;;rate control;;HEVC;;hardware and software collaboration 中文刊名：JCDL 英文刊名：Application of IC 机构：上海兆芯集成电路有限公司; 出版日期：2019-07-23 11:18 出版单位：集成电路应用 年：2019 期：v.36;No.311 基金：工业和信息化部国家核高基专项基金(2014ZX 01029101) 语种：中文; 页：JCDL201908004 页数：3 CN：08 ISSN：31-1325/TN 分类号：17-19

摘要

视频编码器中的码率控制模块可以通过调整量化参数QP来控制每一帧的比特数,使编码器输出比特流具有比较平滑的比特率曲线。提出一种软硬件协同视频编码器中的码率控制实现方法,可以应用于大部分具有通用运算单元的视频编码器中。
        The rate-control module in the video encoder can control the bit size of each frame by adjust the QP value. By using rate-control, the encoded bit stream can get a relatively smooth bitrate curve. This paper suggested a method to realize rate-control in the Hardware/software collaboration system, which could be used in most of the video encoders that has a simple general-purpose operation unit.

引文

[1]JVT-G012,Adaptive Basic Unit Layer Rate Control for JVT,Joint Video Team(JVT)of ISO/IEC MPEG&ITU-T VCEG[C].7th Meeting:Pattaya II,Thailand,2003-03-07.
    [2]JCTVC-H0213,Rate control based on unified RQ model for HEVC,Joint Collaborative Team on Video Coding(JCT-VC)of ITU-T SG16 WP3and ISO/IEC JTC1/SC29/WG11[C].8th Meeting:San José,CA,USA,2012-02-01.
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    [4]ISO/IEC 23008-2,Recommendation ITU-TH.265 and International Standard[S],Joint Collaborative Team on Video Coding(JCT-VC),2015.