How to hardsub a file without recompress it?

[Kouta]

hey pals. im so dumb that i couldnt find a way to do that, and ive searched hard for that. plx help me, my pc sux ( its an AXP 2ghz) and i need to hardsub a file without recompress it.

[j_olson]

Why hardsub?

[charleski]

Can't be done. You're talking about changing the encoded video, any such change requires re-encoding.

[Anonymouses]

hey pals. im so dumb that i couldnt find a way to do that, and ive searched hard for that. plx help me, my pc sux ( its an AXP 2ghz) and i need to hardsub a file without recompress it.

Without some sort of magic, that is completely impossible. Why not just mux the video with subs into a format like mkv or mp4 so that you can have the subs but don't need to reencode?

[Kouta]

I've already figured a way that suits me, tk ppl. i need to do that because here the pl are dumb enought to dun have the VobSub, and i needed to mux a karaoke, and mp4 dont handle ssa

[TomSem]

try recomp, very fast but it recodes the movie. There is no other way around.

[Rasqual]

The point I think is to use softsubs that could be rendered very very fast (e.g no parsing/rasterizing steps), without affecting playback performance too badly. A sort of overlay mixer, I guess.