[FFmpeg-cvslog] r15474 - trunk/libavcodec/indeo3.c

Benoit Fouet ml_benoitfouet
Tue Sep 30 11:45:11 CEST 2008


benoit wrote:
> Modified: trunk/libavcodec/indeo3.c
> ==============================================================================
> --- trunk/libavcodec/indeo3.c   (original)
> +++ trunk/libavcodec/indeo3.c   Tue Sep 30 11:35:53 2008
> @@ -69,24 +69,25 @@ static av_cold void build_modpred(Indeo3
>    s->ModPred = av_malloc(8 * 128);
>
>    for (i=0; i < 128; ++i) {
> -    s->ModPred[i+0*128] = (i > 126) ? 254 : 2*((i + 1) - ((i + 1) % 2));
> -    s->ModPred[i+1*128] = (i == 7)  ?  20 : ((i == 119 || i == 120)
> -                                 ? 236 : 2*((i + 2) - ((i + 1) % 3)));
> -    s->ModPred[i+2*128] = (i > 125) ? 248 : 2*((i + 2) - ((i + 2) % 4));
> -    s->ModPred[i+3*128] =                        2*((i + 1) - ((i - 3) % 5));
> -    s->ModPred[i+4*128] = (i == 8)  ?  20 : 2*((i + 1) - ((i - 3) % 6));
> -    s->ModPred[i+5*128] =                        2*((i + 4) - ((i + 3) % 7));
> -    s->ModPred[i+6*128] = (i > 123) ? 240 : 2*((i + 4) - ((i + 4) % 8));
> -    s->ModPred[i+7*128] =                        2*((i + 5) - ((i + 4) % 9));
> +    s->ModPred[i+0*128] = i >  126 ? 254 : 2*(i + 1 - ((i + 1) % 2));
> +    s->ModPred[i+1*128] = i ==   7 ?  20 :
> +                          i == 119 ||
> +                          i == 120 ? 236 : 2*(i + 2 - ((i + 1) % 3));
> +    s->ModPred[i+2*128] = i >  125 ? 248 : 2*(i + 2 - ((i + 2) % 4));
> +    s->ModPred[i+3*128] =                  2*(i + 1 - ((i - 3) % 5));
> +    s->ModPred[i+4*128] = i ==   8 ?  20 : 2*(i + 1 - ((i - 3) % 6));
> +    s->ModPred[i+5*128] =                  2*(i + 4 - ((i + 3) % 7));
> +    s->ModPred[i+6*128] = i >  123 ? 240 : 2*(i + 4 - ((i + 4) % 8));
> +    s->ModPred[i+7*128] =                  2*(i + 5 - ((i + 4) % 9));
>    }
>   

I also tried to simplify assignations to use less modulo operations, but
it lead to less symetric code, so I left the code as it was.
If the simplification is prefered, I can do it, though...

-- 
Benoit Fouet
Purple Labs S.A.
www.purplelabs.com





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