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avfilter/vf_perspective: use lrint instead of floor hack

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Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This commit is contained in:
Ganesh Ajjanagadde 2015-11-25 17:32:15 -05:00
parent fa5d299496
commit c6bea81acf
1 changed files with 5 additions and 5 deletions
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10
libavfilter/vf_perspective.c
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@ -213,10 +213,10 @@ static int config_input(AVFilterLink *inlink)
for (x = 0; x < w; x++){ for (x = 0; x < w; x++){
int u, v; int u, v;
u = (int)floor(SUB_PIXELS * (x0 * x + x1 * y + x2) / u = lrint(SUB_PIXELS * (x0 * x + x1 * y + x2) /
(x6 * x + x7 * y + x8) + 0.5); (x6 * x + x7 * y + x8));
v = (int)floor(SUB_PIXELS * (x3 * x + x4 * y + x5) / v = lrint(SUB_PIXELS * (x3 * x + x4 * y + x5) /
(x6 * x + x7 * y + x8) + 0.5); (x6 * x + x7 * y + x8));
s->pv[x + y * w][0] = u; s->pv[x + y * w][0] = u;
s->pv[x + y * w][1] = v; s->pv[x + y * w][1] = v;
@ -235,7 +235,7 @@ static int config_input(AVFilterLink *inlink)
sum += temp[j]; sum += temp[j];
for (j = 0; j < 4; j++) for (j = 0; j < 4; j++)
s->coeff[i][j] = (int)floor((1 << COEFF_BITS) * temp[j] / sum + 0.5); s->coeff[i][j] = lrint((1 << COEFF_BITS) * temp[j] / sum);
} }
return 0; return 0;