remove min_scan_x, min_scan_y and find a better way to get max_scan_x and max_scan_y.

[nuomi2021]

see https://patchwork.ffmpeg.org/project/ffmpeg/patch/TYSPR06MB64337C13ECE97978A56C1152AA62A@TYSPR06MB6433.apcprd06.prod.outlook.com/#81903

[hamzah-mujawar]

Progress Update:

I have located the file that I need to work on vvc_cabac.c, and found where max_scan and min_scan are defined:

I took a look at the definition of FFMAX:

[hamzah-mujawar]

Progress update:

I have added this line of code to help me understand what is going on:

This is the resulting output:

From my understanding, this returns the max of xc and yc respectively.

I have a question, do we need to find the highest xc and yc value overall, since from what I've seen the higher the xc and yc value that's what max_scan tends to stay on.

Thanking you for your time,
Hamzah Mujawar