videomixer with external images

[Nicolas Dufresne]

Le lundi 25 novembre 2013 à 21:42 +0100, Frédéric Sallé a écrit :
> Hello,
> 
> With the 0.1 version, It works as expected.
> BTW, the 1.x version of that pipeline (with binaries from the PPA),
> Gsteamer hangs most of the time but sometimes it's ok :-(

The PPA is out dated, I seriously think the distro should take care of
updating to the 1.2. The pipeline works fine on 1.2, as videomixer have
got quite some improvement.

> 
> However the issue is that the JPEG compression mess up the blue
> background used for the alpha blending and the image to overlay. (I
> don't want to use sink_X::alpha=XX properties of the videomixer to get
> a clear overlay.)

You should look at the alpha element documentation. It's doing some
advanced fuzzy matching on colors which can be (and probably must be)
tweaked to you scene.

Nicolas
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