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ac3_fixed: fix out-of-bound read

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Should also improve decoding, but actually doesn't...

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b083440060)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Christophe Gisquet
2015-03-14 11:48:57 +00:00
committed by Michael Niedermayer
parent 6d14bea8b5
commit c657b08fd7
1 changed files with 1 additions and 1 deletions
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libavcodec/ac3dec.c
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@@ -872,7 +872,7 @@ static int decode_audio_block(AC3DecodeContext *s, int blk)
start_subband += start_subband - 7; start_subband += start_subband - 7;
end_subband = get_bits(gbc, 3) + 5; end_subband = get_bits(gbc, 3) + 5;
#if USE_FIXED #if USE_FIXED
s->spx_dst_end_freq = end_freq_inv_tab[end_subband]; s->spx_dst_end_freq = end_freq_inv_tab[end_subband-5];
#endif #endif
if (end_subband > 7) if (end_subband > 7)
end_subband += end_subband - 7; end_subband += end_subband - 7;