Overscanning dilemma...

[Kban]

I converted a subbed anime DivX to SVCD with TMPGEnc and when I played it, my TV would eat a half of the subs and also a bit of the sides. So I did some research and found that this was because my TV overscans a lot. I say a lot because I tried the same SVCD with a different TV and it would show more video, overscanning wasnt that bad and it would only cut subs when sentences were too long (sides).

So in TMPGEnc in the clip frame options, I selected "Arrange Setting", selected Center (custom size) and went from 480x480, to x470x470, to 460x460 and so on until 400x400, and saved a little video file for each to check with my DVD in my TV. So I did the testing and found out that at 450x450 I would see the whole screen.

I read somewhere that people use the "clip frame" option and add black borders or masks intead of what I did. My question is which is recomended to do, use Arrange Setting with custom size or clip the input video? Which will work better if I want to see this SVCD in different TV's.

[Nelson37]

I think the end result is the same. What you want to do is avoid resizing it twice. Do your original resize to 448 x 448 and add a 16 pixel border to each side. I use AviSynth to do this, or you could do it in TMPGenc. It is important to keep the border at multiples of 16 for encoder efficiency.

I think than amount of overscan is about average but haven't done much testing on this.

[Kban]

OK thanks, but why do I want to add a 16 border to each side? i dont understand what you are trying to say sorry

[sterno]

I read somewhere that people use the "clip frame" option and add black borders or masks intead of what I did. My question is which is recomended to do, use Arrange Setting with custom size or clip the input video? Which will work better if I want to see this SVCD in different TV's.

If you clip the frame you're cutting off the edges, people do that because replacing it with black leaves a little more bitrate for the part of the screen you can actually see (useful for low bitrate encodes). You wouldn't want to do that because you're trying to resize the video to see more of it, not just throw away the parts you can't see.

[Kban]

I got it now, thanks!