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sonicdec: check decorrelation

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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1 parent 8251c05 commit 1426291eb84c23eb0467c857397db8a76e77a003 @michaelni michaelni committed Mar 21, 2013
Showing with 4 additions and 0 deletions.
  1. +4 −0 libavcodec/sonic.c
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@@ -801,6 +801,10 @@ static av_cold int sonic_decode_init(AVCodecContext *avctx)
if (!s->lossless)
skip_bits(&gb, 3); // XXX FIXME
s->decorrelation = get_bits(&gb, 2);
+ if (s->decorrelation != 3 && s->channels != 2) {
+ av_log(avctx, AV_LOG_ERROR, "invalid decorrelation %d\n", s->decorrelation);
+ return AVERROR_INVALIDDATA;
+ }
s->downsampling = get_bits(&gb, 2);
if (!s->downsampling) {

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