[MPlayer-users] Need to invert colors- New output filter needed
Toddmilliner
oddbudman at optushome.com.au
Sun Aug 25 14:24:01 CEST 2002
Hello, i'm still trying to invert the colors on my tv tuner
i have tried all the -vop stuff but it isn't exactly what i am after
i need you to understand that this is not an issue with my tv tuner
card- it works 100% correctly
i need to decrypt a signal that inverts the colors as a form on encryption
hence i need a color inverter
currently i have found a video program that does exactly what i want to
an image. it is called Grabbo and is on freshmeat.
its inverting code is as follows
static void *negative_effecto (int w, int h, unsigned char *image, void
*private_data)
{
unsigned char *p = image;
unsigned int i = w * h * RGB_COMPONENTS;
while (--i) *p++ = ~(*p);
return image;
}
this program is more suited to survellance and doesn't have sound
support, or from what i can tell good framebuffering
but it does a great job at inverting the colors just the way i need it :)
I had a look at the vf_* source but i have no idea what is going on- i'm
a poor coder.
if anyone could help me it would be greatly appreciated, not only by me,
but by the rest of the australian broadband community :)
this link may aid your understanding of my dilema
http://www.fucu.cjb.net/
oddbudman
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