[FFmpeg-soc] [soc]: r3915 - dirac/libavcodec/dwt.c

[Michael Niedermayer]

On Thu, Jan 01, 2009 at 09:31:40PM +0100, conrad wrote:
> Author: conrad
> Date: Thu Jan  1 21:31:39 2009
> New Revision: 3915
> 
> Log:
> Daubechies 9/7 idwt
> 
> Modified:
>    dirac/libavcodec/dwt.c
> 
> Modified: dirac/libavcodec/dwt.c
> ==============================================================================
> --- dirac/libavcodec/dwt.c	Thu Jan  1 21:31:37 2009	(r3914)
> +++ dirac/libavcodec/dwt.c	Thu Jan  1 21:31:39 2009	(r3915)
> @@ -59,6 +59,18 @@ static inline int extend_odd(int v, int 
>  #define COMPOSE_HAARiH0(b0, b1)\
>      (b0 + b1)
>  
> +#define COMPOSE_DAUB97iL1(b0, b1, b2)\
> +    (b1 - ((1817*(b0 + b2) + 2048) >> 12))
> +

> +#define COMPOSE_DAUB97iH1(b0, b1, b2)\
> +    (b1 - ((3616*(b0 + b2) + 2048) >> 12))

113* ... + 64 >> ...


[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

It is dangerous to be right in matters on which the established authorities
are wrong. -- Voltaire
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