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atrac3: Fix crash in tonal component decoding.

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Fixes Ticket780
Bug Found by: cosminamironesei

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 9af6abdc17deb95c9b1f1d9242ba49b8b5e0b016)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-12-17 03:18:58 +01:00
parent 431cf16963
commit 1014e20492
1 changed files with 2 additions and 0 deletions
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2
libavcodec/atrac3.c
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@ -393,6 +393,8 @@ static int decodeTonalComponents (GetBitContext *gb, tonal_component *pComponent
for (k=0; k<coded_components; k++) {
sfIndx = get_bits(gb,6);
if(component_count>=64)
return AVERROR_INVALIDDATA;
pComponent[component_count].pos = j * 64 + (get_bits(gb,6));
max_coded_values = 1024 - pComponent[component_count].pos;
coded_values = coded_values_per_component + 1;