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VP3: Prevent stack corruption from an unset custom coding method.

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Originally committed as revision 16978 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alex Converse 2009-02-03 22:59:47 +00:00
parent 20e2a7aed2
commit 2c823b3ccc
1 changed files with 2 additions and 0 deletions
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libavcodec/vp3.c
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@ -741,6 +741,8 @@ static int unpack_modes(Vp3DecodeContext *s, GetBitContext *gb)
/* is it a custom coding scheme? */ /* is it a custom coding scheme? */
if (scheme == 0) { if (scheme == 0) {
for (i = 0; i < 8; i++)
custom_mode_alphabet[i] = MODE_INTER_NO_MV;
for (i = 0; i < 8; i++) for (i = 0; i < 8; i++)
custom_mode_alphabet[get_bits(gb, 3)] = i; custom_mode_alphabet[get_bits(gb, 3)] = i;
} }