SAO MODE DECISION-MAKING METHOD, APPARATUS, ELECTRONIC DEVICE AND READABLE STORAGE MEDIUM

摘要

An SAO mode decision-making method, an apparatus, an electronic device and a readable storage medium, said method comprising: performing, in a merge mode, pixel offset on a coding tree unit (CTU), determining an optimal merge mode and a first rate distortion cost C1 of the CTU in the optimal merge mode; in cases where C1 is less than a preset first threshold, obtaining the sample adaptive offset (SAO) parameter of the CTU on the basis of the optimal merge mode; in cases where C1 is not less than the first threshold, performing pixel offset on the CTU in an EO mode, so as to obtain a second rate distortion cost C2; determining the SAO parameter of the CTU according to C2 and C1, and further completing the SAO mode decision-making of the CTU. The SAO mode decision-making method in the embodiments of the present application can improve coding efficiency.