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aacps: avoid division by zero in stereo_processing

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This fixes a SIGFPE crash in the aac_fixed decoder.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Reviewed-by: Rostislav Pehlivanov <atomnuker@gmail.com>
(cherry picked from commit ef7fe9851e)
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
This commit is contained in:
Andreas Cadhalpun
2015-11-08 22:04:08 +01:00
committed by Andreas Cadhalpun
parent 510d88ae93
commit c3f276b608
1 changed files with 1 additions and 1 deletions
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libavcodec/aacps.c
+1 -1
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@@ -940,7 +940,7 @@ static void stereo_processing(PSContext *ps, INTFLOAT (*l)[32][2], INTFLOAT (*r)
LOCAL_ALIGNED_16(INTFLOAT, h_step, [2], [4]); LOCAL_ALIGNED_16(INTFLOAT, h_step, [2], [4]);
int start = ps->border_position[e]; int start = ps->border_position[e];
int stop = ps->border_position[e+1]; int stop = ps->border_position[e+1];
INTFLOAT width = Q30(1.f) / (stop - start); INTFLOAT width = Q30(1.f) / ((stop - start) ? (stop - start) : 1);
#if USE_FIXED #if USE_FIXED
width <<= 1; width <<= 1;
#endif #endif