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avformat/mov: use hypot() 

This simplifies the code.

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 11:15:39 -05:00
parent 764900d645
commit 7324af651f
1 changed files with 1 additions and 2 deletions
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3
libavformat/mov.c
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@ -3421,9 +3421,8 @@ static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (width && height && sc->display_matrix) {
double disp_transform[2];
#define SQR(a) ((a)*(double)(a))
for (i = 0; i < 2; i++)
disp_transform[i] = sqrt(SQR(display_matrix[i][0]) + SQR(display_matrix[i][1]));
disp_transform[i] = hypot(display_matrix[i][0], display_matrix[i][1]);
if (disp_transform[0] > 0 && disp_transform[1] > 0 &&
disp_transform[0] < (1<<24) && disp_transform[1] < (1<<24) &&