evrcdec: fix sign error

The specification wants round(abs(x))) * sign(x) which is equivakent to round(x) Fixes out of array access Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago · f18d2dff11
parent 64819bfc7a
commit f18d2dff11
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/evrcdec.c
+++ b/libavcodec/evrcdec.c
@ -374,7 +374,7 @@ static void bl_intrp(EVRCContext *e, float *ex, float delay)
    int offset, i, coef_idx;
    int16_t t;

-    offset = lrintf(fabs(delay));
+    offset = lrintf(delay);

    t = (offset - delay + 0.5) * 8.0 + 0.5;
    if (t == 8) {