From edd80ec7e32b097043432fa67281ed8c6d044331 Mon Sep 17 00:00:00 2001
From: Mans Rullgard <mans@mansr.com>
Date: Sat, 24 Nov 2012 13:12:47 +0000
Subject: [PATCH] aacdec: fix signed overflows in lcg_random()
Signed-off-by: Mans Rullgard <mans@mansr.com>
---
libavcodec/aacdec.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c
index d2a31cae0b1..af17acfb754 100644
--- a/libavcodec/aacdec.c
+++ b/libavcodec/aacdec.c
@@ -787,7 +787,8 @@ static int decode_audio_specific_config(AACContext *ac,
*/
static av_always_inline int lcg_random(int previous_val)
{
- return previous_val * 1664525 + 1013904223;
+ union { unsigned u; int s; } v = { previous_val * 1664525u + 1013904223 };
+ return v.s;
}
static av_always_inline void reset_predict_state(PredictorState *ps)
--
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