Color Saturation with openGL shaders

Hamdi Rakkez hamdi.rakez.selotec at gmail.com
Tue Aug 11 08:02:43 PDT 2015


You are right Nicolas, It's exactly an alternative to videobalance with
opengl elements.

I've used glshader element based on a .frag file which approximately give a
color saturation to a video stream. Still it's not as good as videobalance
but certainly much faster.

Thanks Matthew and Nicolas

On Tue, Aug 11, 2015 at 3:09 PM, Nicolas Dufresne <
nicolas.dufresne at collabora.com> wrote:

> Le mardi 11 août 2015 à 10:28 +0100, Hamdi Rakkez a écrit :
> > I want to know if it is possible to have a color saturation on a
> > video stream with opengl shaders.
>
> I guess you mean if it's possible to change the saturation using a
> shader ? (correct me if I got it wrong). At the moment, there is no
> equivalent of videobalance in the open gl elements. This is probably
> something soon to happen. This is clearly something doable with a
> fragment shader. You can experiment (or even implement your own) using
> glshader element.
>
> Nicolas
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>
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