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Do not read out of array bounds. 

Originally committed as revision 13053 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ramiro Polla 2008-05-04 01:07:46 +00:00
parent f7739f3708
commit 0ec7b71de8
1 changed files with 4 additions and 0 deletions
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4
libavcodec/flac.c
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@ -279,9 +279,13 @@ static int decode_subframe_fixed(FLACContext *s, int channel, int pred_order)
if (decode_residuals(s, channel, pred_order) < 0)
return -1;
if(pred_order > 0)
a = decoded[pred_order-1];
if(pred_order > 1)
b = a - decoded[pred_order-2];
if(pred_order > 2)
c = b - decoded[pred_order-2] + decoded[pred_order-3];
if(pred_order > 3)
d = c - decoded[pred_order-2] + 2*decoded[pred_order-3] - decoded[pred_order-4];
switch(pred_order)