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https://github.com/mpv-player/mpv
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cleanup & more optimize
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9366 b3059339-0415-0410-9bf9-f77b7e298cf2
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@ -68,20 +68,7 @@ void uninit(struct vf_instance_s* vf)
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free(vf->priv->Line);
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}
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//#define LowPass(Prev, Curr, Coef) (((Prev)*Coef[Prev - Curr] + (Curr)*(65536-(Coef[Prev - Curr]))) / 65536)
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//#define LowPass(Prev, Curr, Coef) (( Prev*Coef[Prev-Curr] + Curr*(65536-(Coef[Prev-Curr])) )/65536)
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//#define LowPass(Prev, Curr, Coef) (( Prev*Coef[Prev-Curr] + Curr*65536 - Curr*Coef[Prev-Curr] )/65536)
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//#define LowPass(Prev, Curr, Coef) (((int)(Curr)) + (( (int)Prev*Coef[Prev-Curr] - (int)Curr*Coef[Prev-Curr] )>>16) )
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//#define LowPass(Prev, Curr, Coef) (Curr + (( Prev*Coef[Prev-Curr] - Curr*Coef[Prev-Curr] )>>16) )
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//#define LowPass(Prev, Curr, Coef) (Curr + (( (Prev-Curr)*(Coef[Prev-Curr]) )>>16) )
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//#define LowPass(Prev, Curr, Coef) (Curr + (((Prev - Curr)*Coef[Prev - Curr]) / 65536))
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#define LowPass(Prev, Curr, Coef) (Curr + ((((unsigned int)(Prev - Curr))*Coef[Prev - Curr]) / 65536))
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//#define LowPass(Prev, Curr, Coef) (Curr + ((((unsigned int)(Prev - Curr))*Coef[((unsigned int)(Prev - Curr))]) / 65536))
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//#define LowPass(Prev, Curr, Coef) (Curr + ((((unsigned char)(Prev - Curr))*Coef[Prev - Curr]) / 65536))
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//#define LowPass(Prev, Curr, Coef) (Curr + (( ((((int)(Prev))-((int)(Curr)))) *Coef[Prev - Curr]) / 65536))
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//#define LowPass(Prev, Curr, Coef) (Curr + (((unsigned int)((Prev - Curr)*Coef[Prev - Curr])) / 65536))
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//#define LowPass(Prev, Curr, Coef) (Curr + (((Prev - Curr)*Coef[Prev - Curr]) >> 16))
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#define LowPass(Prev, Curr, Coef) (Curr + Coef[Prev - Curr])
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static void deNoise(unsigned char *Frame, // mpi->planes[x]
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unsigned char *FramePrev, // pmpi->planes[x]
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@ -185,14 +172,16 @@ static int query_format(struct vf_instance_s* vf, unsigned int fmt){
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static void PrecalcCoefs(int *Ct, double Dist25)
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{
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int i;
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double Gamma, Simil;
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double Gamma, Simil, C;
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Gamma = log(0.25) / log(1.0 - Dist25/255.0);
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for (i = -256; i <= 255; i++)
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{
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Simil = 1.0 - ABS(i) / 255.0;
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Ct[256+i] = pow(Simil, Gamma) * 65536;
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// Ct[256+i] = lround(pow(Simil, Gamma) * (double)i);
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C = pow(Simil, Gamma) * (double)i;
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Ct[256+i] = (C<0) ? (C-0.5) : (C+0.5);
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}
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}
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