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Added check for invalid log2_max_transform_block_size in SPS

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Bug: 33918236
Bug: 33964497
Bug: 33965905
Bug: 33862021
Change-Id: If121221d0f6e983c05d95d123af9bed378d1961f
This commit is contained in:
Harish Mahendrakar 2017-01-13 17:08:35 +05:30 • committed by Marco Nelissen
parent 52e8af6f4e
commit b5cae8181e
1 changed files with 9 additions and 0 deletions
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9
decoder/ihevcd_parse_headers.c
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@ -1191,6 +1191,7 @@ IHEVCD_ERROR_T ihevcd_parse_sps(codec_t *ps_codec)
sps_t *ps_sps;
profile_tier_lvl_info_t s_ptl;
bitstrm_t *ps_bitstrm = &ps_codec->s_parse.s_bitstrm;
WORD32 ctb_log2_size_y = 0;
BITS_PARSE("video_parameter_set_id", value, ps_bitstrm, 4);
@ -1333,6 +1334,8 @@ IHEVCD_ERROR_T ihevcd_parse_sps(codec_t *ps_codec)
UEV_PARSE("log2_diff_max_min_coding_block_size", value, ps_bitstrm);
ps_sps->i1_log2_diff_max_min_coding_block_size = value;
ctb_log2_size_y = ps_sps->i1_log2_min_coding_block_size + ps_sps->i1_log2_diff_max_min_coding_block_size;
UEV_PARSE("log2_min_transform_block_size_minus2", value, ps_bitstrm);
ps_sps->i1_log2_min_transform_block_size = value + 2;
@ -1342,6 +1345,12 @@ IHEVCD_ERROR_T ihevcd_parse_sps(codec_t *ps_codec)
ps_sps->i1_log2_max_transform_block_size = ps_sps->i1_log2_min_transform_block_size +
ps_sps->i1_log2_diff_max_min_transform_block_size;
if ((ps_sps->i1_log2_max_transform_block_size < 0) ||
(ps_sps->i1_log2_max_transform_block_size > MIN(ctb_log2_size_y, 5)))
{
return IHEVCD_INVALID_PARAMETER;
}
ps_sps->i1_log2_ctb_size = ps_sps->i1_log2_min_coding_block_size +
ps_sps->i1_log2_diff_max_min_coding_block_size;