From f264d336fe61c12ce9607c3060aa5d3dca947c61 Mon Sep 17 00:00:00 2001
From: Justin Ruggles <justin.ruggles@gmail.com>
Date: Wed, 21 Dec 2011 18:13:06 -0500
Subject: truespeech: fix invalid reads in truespeech_apply_twopoint_filter()

fixes Bug 171
---
 libavcodec/truespeech.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'libavcodec')

diff --git a/libavcodec/truespeech.c b/libavcodec/truespeech.c
index 524884ddf5..5ef0a01427 100644
--- a/libavcodec/truespeech.c
+++ b/libavcodec/truespeech.c
@@ -179,6 +179,7 @@ static void truespeech_apply_twopoint_filter(TSContext *dec, int quart)
     for(i = 0; i < 146; i++)
         tmp[i] = dec->filtbuf[i];
     off = (t / 25) + dec->offset1[quart >> 1] + 18;
+    off = av_clip(off, 0, 145);
     ptr0 = tmp + 145 - off;
     ptr1 = tmp + 146;
     filter = (const int16_t*)ts_order2_coeffs + (t % 25) * 2;
-- 
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