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avfilter/vf_deshake: fix loss of precission with odd resolutions

Fixes part of Ticket3466
Found-by: Andrey_Karpov / PVS-Studio
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-04-16 02:06:37 +02:00
parent 5a8ef3c66b
commit 73734282e0

View File

@ -306,8 +306,8 @@ static void find_motion(DeshakeContext *deshake, uint8_t *src1, uint8_t *src2,
//av_log(NULL, AV_LOG_ERROR, "\n");
}
p_x = (center_x - width / 2);
p_y = (center_y - height / 2);
p_x = (center_x - width / 2.0);
p_y = (center_y - height / 2.0);
t->vector.x += (cos(t->angle)-1)*p_x - sin(t->angle)*p_y;
t->vector.y += sin(t->angle)*p_x + (cos(t->angle)-1)*p_y;