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Merge "DO NOT MERGE Added check for invalid log2_max_transform_block_size in SPS" into lmp-dev

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Marco Nelissen 2017-06-06 20:10:10 +00:00 • committed by Android (Google) Code Review
commit e30fa58cf0
1 changed files with 9 additions and 0 deletions
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9
decoder/ihevcd_parse_headers.c
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@ -1197,6 +1197,7 @@ 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);
@ -1355,6 +1356,8 @@ 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;
@ -1364,6 +1367,12 @@ 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;