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avfilter/vsrc_mptestsrc: use hypot()

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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 2015-11-22 11:50:22 -05:00
parent 352bd18dff
commit 74b79dcf51
1 changed files with 1 additions and 1 deletions
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libavfilter/vsrc_mptestsrc.c
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@ -240,7 +240,7 @@ static void ring2_test(uint8_t *dst, int dst_linesize, int off)
for (y = 0; y < 16*16; y++) {
for (x = 0; x < 16*16; x++) {
double d = sqrt((x-8*16)*(x-8*16) + (y-8*16)*(y-8*16));
double d = hypot(x-8*16, y-8*16);
double r = d/20 - (int)(d/20);
if (r < off/30.0) {
dst[x + y*dst_linesize] = 255;