Probably videobox and videomixer may fix it


On Fri, Oct 30, 2009 at 4:55 PM, megabug <> wrote:


I have two videos:
1 - An animated "title" text video (letters moving around with a complex schema) with a black background.
2 - Another video taken with a camera

Using libpigment, I tried to put the video 1 over video 2 but the black background of titles is not transparent and covers the second video. If I try to change alpha value on the whole video the black will be mixed with the second video making it darker.

Is it possible to make transparent a only part of the video with a specific color (the black on the first video in my case)?


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