From 1df4b16f92a4d22e7a2ccf0efbd35d8edfffaa75 Mon Sep 17 00:00:00 2001
From: Sushanth Patil <sushanth.patil@ittiam.com>
Date: Tue, 26 Mar 2019 17:50:19 +0530
Subject: [PATCH] Fix for sub-oveflow in ixheaacd_tns_ar_filter_fixed_armv8

Added check for subtraction overflow.

Bug:129251257
Test: vendor
Change-Id: I318705f48d0fd0ef2ca14c258cbf6b9113852da1
---
 decoder/ixheaacd_aac_tns.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/decoder/ixheaacd_aac_tns.c b/decoder/ixheaacd_aac_tns.c
index 3fbaf9a..b4b3f4d 100644
--- a/decoder/ixheaacd_aac_tns.c
+++ b/decoder/ixheaacd_aac_tns.c
@@ -349,7 +349,7 @@ VOID ixheaacd_tns_ar_filter_fixed_armv8(WORD32 *spectrum, WORD32 size,
       }
       acc1 = (WORD32)(acc >> 32);
 
-      y = ixheaacd_sub32(y, ixheaacd_shl32_sat(acc1, 1));
+      y = ixheaacd_sub32_sat(y, ixheaacd_shl32_sat(acc1, 1));
       state[0] = ixheaacd_shl32_sat(y, shift_value);
 
       *spectrum = y >> scale_spec;