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sws/fill_rgb2yuv_table: use ROUNDED_DIV

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
pull/14/head
Michael Niedermayer 12 years ago
parent bcf643486f
commit f05cfb654f
1 changed files with 14 additions and 14 deletions
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  1. 28
      libswscale/utils.c

28
libswscale/utils.c
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@ -858,25 +858,25 @@ static void fill_rgb2yuv_table(SwsContext *c, const int table[4], int dstRange)
ug = ug * 224 / 255;
vg = vg * 224 / 255;
}
W = ONE*ONE*ug/ub;
V = ONE*ONE*vg/vr;
W = ROUNDED_DIV(ONE*ONE*ug, ub);
V = ROUNDED_DIV(ONE*ONE*vg, vr);
Z = ONE*ONE-W-V;
Cy = cy*Z / ONE;
Cu = ub*Z / ONE;
Cv = vr*Z / ONE;
Cy = ROUNDED_DIV(cy*Z, ONE);
Cu = ROUNDED_DIV(ub*Z, ONE);
Cv = ROUNDED_DIV(vr*Z, ONE);
c->input_rgb2yuv_table[RY_IDX] = -(1 << RGB2YUV_SHIFT)*V/Cy;
c->input_rgb2yuv_table[GY_IDX] = (1 << RGB2YUV_SHIFT)*ONE*ONE/Cy;
c->input_rgb2yuv_table[BY_IDX] = -(1 << RGB2YUV_SHIFT)*W/Cy;
c->input_rgb2yuv_table[RY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cy);
c->input_rgb2yuv_table[GY_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cy);
c->input_rgb2yuv_table[BY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cy);
c->input_rgb2yuv_table[RU_IDX] = (1 << RGB2YUV_SHIFT)*V/Cu;
c->input_rgb2yuv_table[GU_IDX] = -(1 << RGB2YUV_SHIFT)*ONE*ONE/Cu;
c->input_rgb2yuv_table[BU_IDX] = (1 << RGB2YUV_SHIFT)*(Z+W)/Cu;
c->input_rgb2yuv_table[RU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cu);
c->input_rgb2yuv_table[GU_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cu);
c->input_rgb2yuv_table[BU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(Z+W) , Cu);
c->input_rgb2yuv_table[RV_IDX] = (1 << RGB2YUV_SHIFT)*(V+Z)/Cv;
c->input_rgb2yuv_table[GV_IDX] = -(1 << RGB2YUV_SHIFT)*ONE*ONE/Cv;
c->input_rgb2yuv_table[BV_IDX] = (1 << RGB2YUV_SHIFT)*W/Cv;
c->input_rgb2yuv_table[RV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(V+Z) , Cv);
c->input_rgb2yuv_table[GV_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cv);
c->input_rgb2yuv_table[BV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cv);
if(/*!dstRange && */table == ff_yuv2rgb_coeffs[SWS_CS_DEFAULT]) {
c->input_rgb2yuv_table[BY_IDX] = ((int)(0.114 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));

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