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1. (WO2018161845) METHOD FOR VIDEO CODING CODE RATE ALLOCATION AND CODING UNIT CODE RATE ALLOCATION, AND COMPUTER EQUIPMENT

Pub. No.:    WO/2018/161845    International Application No.:    PCT/CN2018/077781
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Fri Mar 02 00:59:59 CET 2018
IPC: H04N 19/176
H04N 19/159
H04N 19/146
H04N 19/147
Applicants: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
腾讯科技(深圳)有限公司
Inventors: MAO, Xunan
毛煦楠
Title: METHOD FOR VIDEO CODING CODE RATE ALLOCATION AND CODING UNIT CODE RATE ALLOCATION, AND COMPUTER EQUIPMENT
Abstract:
A method for video coding code rate allocation and coding unit code rate allocation, which is applied to a client terminal or a server, the method comprising: obtaining a target code rate and a coded code rate of a current frame; determining a non-coded code rate of the frame according to the target code rate and the coded code rate; obtaining a predicted cost of a current coding unit and a predicted cost of a non-coded unit of the frame, which are determined on the basis of precoding; determining a target code rate of a current unit to be coded according to the non-coded code rate of the frame and a cost ratio, the cost ratio being the ratio between the predicted cost of the current coding unit and the predicted cost of the non-coded unit of the frame. Said method for video coding code rate allocation and coding unit code rate allocation more accurately determines the target code rate of the current unit to be coded by means of the ratio between the predicted cost of the current coding unit and the predicted cost of the non-coded unit of the frame being closer to the actual cost as well as by means of the non-encoded code rate of the frame, thus the present invention may reduce errors in code rate allocation for a current unit to be coded, and improve video quality.