On Mon, 02 Oct 2006 23:50:16 +0200, Bernhard Frühmesser
Post by Bernhard Frühmesser Post by Herman Robak
If you want letterboxing, you either have to mask off the top and the
bottom of the image, or scale it down vertically. Both operations are
quite straightforward in Cinelerra.
Well, i have been playing around with masking off the top and bottom,
but for some reason the finally rendered file was 4:3 again with no
borders... and i can´t find out why. I have now read the part about
masking in the Secrets of Cinelerra bout 10 times or so :-)
What format is your recorded video?
Is it 4:3? Do you want 4:3 video to appear like 16:9 video on a 4:3
screen? Then you have to black out part of the image, which is rather
Why would you want that? For artistic effect; go ahead, put on black
bands, if you like. To match it with other 16:9 content you have,
black bands may be totally wrong, and stretching the middle 432 pixels
out to 576 pixels would be more reasonable. So I think you should
tell us exactly what you are trying to accomplish.
The source video is 720x576 4:3.
I would keep the video as it is, but a friend want´s it Letterboxed 16:9
and it will be shown via a Videobeamer and not enough it should match
with 16:9 content from real 16:9 source matterial :-(
Here is a picture of the original video:Loading Image...
And here is a picture of how a friend would want it:Loading Image...
So Letterboxed and final aspect ration 16:9.
Is it 16:9, and your screen is 4:3? Are you sure rendering letter-
boxed video is the only way to get letterboxed display on the TV?
Otherwise the normal way is to keep the 16:9 image pixel for pixel,
and let the player or the screen do the scaling/letterboxing.
Post by Bernhard Frühmesser
Is there some trick to get the masks rendered too?
I am not sure if I understand the question. However, I would consider
using Cinelerra's mask feature to be overkill here. You could use an
overlay of two black PNGs, or one black PNG with a transparent stripe
in the middle.
Well, i have added a Mask (borders) to top and bottom with which the
video nearly looks like the second photo. But the Rendered file doesn´t
have the borders and i don´t know why.
I will try the "PNG-way" - thanks for the tip!
A simpler way would be setting the track's size to 720x432, or
whatever height you wanted. Right-click on the track, and choose
I have tested this but it cut´s off too much and i don´t have any more
space left for the black borders on top and bottom.