Adding black borders without reencoding?

[SpOmA]

Hi guys, it's the first time I'm writing in this forum and I just wanted to ask if it's possible to add black borders and subs (on the borders) without reencoding the whole movie?
or let's say, reencoding it on the exect same settings as it was originally encoded.
I'm talking about xvid movies.

to make myself more clear let's say I got a movie encoded in xvid (AVI file of course) and I want to add to it black borders in top and bottom and to put subtitles on them (to be parmanent).
now let's say that I dont know the exect settings that the file was encoded at the first place, and I dont want to lower the quality.. I just want to add the borders and the subs.
is it possible to do such thing with AviSynth ?

I'm new to the program so please try to give long and descriptive explanation so I will learn to the future.

thank you guys!

[Wilbert]

to make myself more clear let's say I got a movie encoded in xvid (AVI file of course) and I want to add to it black borders in top and bottom and to put subtitles on them (to be parmanent).
No, not possible. Not with AviSynth, not with any other program.

[Elic]

if it's possible to add black borders and subs (on the borders) without reencoding the whole movie?Of course. You can view subtitles on borders during every play. For this, you must just put subtitles file together with movie file and install VSFilter DirectShow subtitle viewer, and then set "vertical padding" to "extend to 4:3" and check "loading" to "external" (settings, "General" tab), and, if subtitles are as text, set font by your taste ("text settings", "Main" tab).

Only one, that subtitles will not be permanent - everybody can view your movie with subs switched off...