From f4fc574fdd957bdc222e3d28d13401748215b167 Mon Sep 17 00:00:00 2001
From: Fraunhofer IIS FDK <audio-fdk@iis.fraunhofer.de>
Date: Thu, 20 Dec 2018 15:52:46 +0100
Subject: [PATCH] Prevent energy overflow in acelp calc_period_factor()

Test: atest DecoderTestXheAac ; atest DecoderTestAacDrc

Change-Id: I5a28fcb09a1b0b0d1f8861642c64185937021154
---
 libAACdec/src/usacdec_acelp.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libAACdec/src/usacdec_acelp.cpp b/libAACdec/src/usacdec_acelp.cpp
index 9fecebf..c836c6a 100644
--- a/libAACdec/src/usacdec_acelp.cpp
+++ b/libAACdec/src/usacdec_acelp.cpp
@@ -309,7 +309,7 @@ static FIXP_DBL calc_period_factor(FIXP_DBL exc[], FIXP_SGL gain_pit,
   ener_exc = (FIXP_DBL)0;
   for (int i = 0; i < L_SUBFR; i++) {
     ener_exc += fPow2Div2(exc[i]) >> s;
-    if (ener_exc > FL2FXCONST_DBL(0.5f)) {
+    if (ener_exc >= FL2FXCONST_DBL(0.5f)) {
       ener_exc >>= 1;
       s++;
     }