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hq_hqa: Validate get_vlc2 return value

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The `hq_ac_vlc.table` is incomplete, so unaccounted symbol return -1
as value.
This commit is contained in:
Luca Barbato 2015-04-21 14:42:21 +02:00
parent a78f5548d9
commit 28eddef689
1 changed files with 4 additions and 1 deletions
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5
libavcodec/hq_hqa.c
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@ -75,7 +75,10 @@ static int hq_decode_block(HQContext *c, GetBitContext *gb, int16_t block[64],
}
for (;;) {
val = get_vlc2(gb, c->hq_ac_vlc.table, 9, 2);
val = get_vlc2(gb, c->hq_ac_vlc.table, 9, 2);
if (val < 0)
return AVERROR_INVALIDDATA;
pos += ff_hq_ac_skips[val];
if (pos >= 64)
break;