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avcodec/hevcdec: Check beta and tc offset in hls_slice_header()

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-06-20 14:32:50 +02:00
parent 5443c4bdf4
commit fdfbcbdd14
1 changed files with 11 additions and 2 deletions
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13
libavcodec/hevcdec.c
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@ -726,8 +726,17 @@ static int hls_slice_header(HEVCContext *s)
if (deblocking_filter_override_flag) {
sh->disable_deblocking_filter_flag = get_bits1(gb);
if (!sh->disable_deblocking_filter_flag) {
sh->beta_offset = get_se_golomb(gb) * 2;
sh->tc_offset = get_se_golomb(gb) * 2;
int beta_offset_div2 = get_se_golomb(gb);
int tc_offset_div2 = get_se_golomb(gb) ;
if (beta_offset_div2 < -6 || beta_offset_div2 > 6 ||
tc_offset_div2 < -6 || tc_offset_div2 > 6) {
av_log(s->avctx, AV_LOG_ERROR,
"Invalid deblock filter offsets: %d, %d\n",
beta_offset_div2, tc_offset_div2);
return AVERROR_INVALIDDATA;
}
sh->beta_offset = beta_offset_div2 * 2;
sh->tc_offset = tc_offset_div2 * 2;
}
} else {
sh->disable_deblocking_filter_flag = s->ps.pps->disable_dbf;