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truespeech: fix invalid reads in truespeech_apply_twopoint_filter()
author
Justin Ruggles
<justin.ruggles@gmail.com>
Wed, 21 Dec 2011 23:13:06 +0000
(18:13 -0500)
committer
Justin Ruggles
<justin.ruggles@gmail.com>
Wed, 21 Dec 2011 23:13:06 +0000
(18:13 -0500)
fixes Bug 171
libavcodec/truespeech.c
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diff --git
a/libavcodec/truespeech.c
b/libavcodec/truespeech.c
index
524884d
..
5ef0a01
100644
(file)
--- 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;