What is the Republican Party?

1, the so-called GOP is a group of pictures, and a GOP is a group of continuous pictures. MPEG coding divides a picture (frame) into I, P and B, where I is an intra-coded frame, P is a forward prediction frame and B is a bidirectional interpolation frame.

Simply put, I frame is a complete picture, and P frame and B frame record the changes relative to I frame. Without I-frame, P-frame and B-frame can't be decoded, which is why MPEG format is difficult to edit accurately and why we have to fine-tune the head and tail.

2. "GOP" is the abbreviation of "Gross OperatingProfit", that is, operating gross profit, which is reflected in the income statement as the balance of income MINUS costs, labor costs, direct expenses of operating departments and indirect expenses of back-office departments. Total hotel operating income-total hotel operating expenditure. Others include the total profit of guest room operation referred to as guest room GOP；; The total profit of catering business referred to as catering GOP is similar.

Extended data:

MPEG coding divides a picture (frame) into I, P and B, where I is an intra-coded frame, P is a forward prediction frame and B is a bidirectional interpolation frame. Simply put, I frame is a complete picture, and P frame and B frame record the changes relative to I frame. Without I-frame, P-frame and B-frame can't be decoded, which is why MPEG format is difficult to edit accurately and why we have to fine-tune the head and tail.

MPEG-2？ Frame structure

The frame structure of MPEG-2 compression has two parameters. One is the length of GOP(Group Of Picture), which can be coded from 1 to 15. The other is the number of B frames between I frame and P frame, which is generally 1-2. The former is theoretically recorded as n, that is, how many frames appear in I frame; The latter is described as how many frames there are in a P frame, which is denoted as M. ..

Baidu encyclopedia -—GOP

Baidu encyclopedia -—GOP