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avcodec/shorten: Check residual size

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Fixes assertion failure

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2017-05-06 19:53:25 +02:00
parent 1283c42447
commit df8575584d
1 changed files with 4 additions and 0 deletions
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4
libavcodec/shorten.c
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@ -661,6 +661,10 @@ static int shorten_decode_frame(AVCodecContext *avctx, void *data,
* of get_sr_golomb_shorten(). */ * of get_sr_golomb_shorten(). */
if (s->version == 0) if (s->version == 0)
residual_size--; residual_size--;
if (residual_size > 30U) {
av_log(avctx, AV_LOG_ERROR, "residual size unsupportd: %d\n", residual_size);
return AVERROR_INVALIDDATA;
}
} }
/* calculate sample offset using means from previous blocks */ /* calculate sample offset using means from previous blocks */