I’m grabbing my text coordinates that I want to use for the file format .ASS and for centering on a 1080 by 1920 video it something like 310 by 800. When I try to set the position of the text inside the .ASS with those positions it doesn’t write the caption where is meant to be. Could some explain how a .ASS positioning works as if I use 200 px by 200 px as positioning it places it way further than the center even though the video is a 1080×1920.

This is how my .ASS file looks like, I’m using ffmpeg to write the subtitles into the video:

[Script Info]
Title: Video Subtitles
ScriptType: v4.00+
Collisions: Normal
PlayDepth: 0


[V4+ Styles]
Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BorderStyle, Encoding
Style: Default, Segoe UI,9,&HFFB0B0,&HFFFF00,&H998877,0,0
Style: Background, Segoe UI,9,&H00FFFFFF,&H000000FF,&H00000000,3,0

[Events]
Format: Start, End, Style, MarginL, MarginR, MarginV, Text
Dialogue: 0:00:00.00,0:00:05.00,Default,0,0,0,{pos(310,800)}LISTEN IN