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Merge commit '074c769de93bf12e9f44d77e58a8c7167f9dfb13'

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* commit '074c769de93bf12e9f44d77e58a8c7167f9dfb13':
  h264_cavlc: check the size of the intra PCM data.

This check is redundant, but does no harm

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-11-22 10:42:05 +01:00
commit ededb5ffed
1 changed files with 4 additions and 0 deletions
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4
libavcodec/h264_cavlc.c
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@ -773,6 +773,10 @@ decode_intra_mb:
// We assume these blocks are very rare so we do not optimize it. // We assume these blocks are very rare so we do not optimize it.
h->intra_pcm_ptr = align_get_bits(&h->gb); h->intra_pcm_ptr = align_get_bits(&h->gb);
if (get_bits_left(&h->gb) < mb_size) {
av_log(h->avctx, AV_LOG_ERROR, "Not enough data for an intra PCM block.\n");
return AVERROR_INVALIDDATA;
}
skip_bits_long(&h->gb, mb_size); skip_bits_long(&h->gb, mb_size);
// In deblocking, the quantizer is 0 // In deblocking, the quantizer is 0