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avcodec/jpeg2000dec: Do not abort if prc is outside limits

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-06-12 16:26:27 +02:00
parent 8e91d9652e
commit eaa8685033
1 changed files with 5 additions and 2 deletions
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7
libavcodec/jpeg2000dec.c
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@ -989,8 +989,11 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
prcy = ff_jpeg2000_ceildivpow2(y, reducedresno) >> rlevel->log2_prec_height;
precno = prcx + rlevel->num_precincts_x * prcy;
if (prcx >= rlevel->num_precincts_x || prcy >= rlevel->num_precincts_y)
return AVERROR_PATCHWELCOME;
if (prcx >= rlevel->num_precincts_x || prcy >= rlevel->num_precincts_y) {
av_log(s->avctx, AV_LOG_WARNING, "prc %d %d outside limits %d %d\n",
prcx, prcy, rlevel->num_precincts_x, rlevel->num_precincts_y);
continue;
}
for (layno = 0; layno < tile->codsty[0].nlayers; layno++) {
if ((ret = jpeg2000_decode_packet(s, tile, &tp_index, codsty, rlevel,