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Merge "Ensure CTB size > 16 for clips with tiles and width/height >= 4096" into lmp-dev

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TreeHugger Robot 2017-08-03 18:28:53 +00:00 • committed by Android (Google) Code Review
commit db15dd7102
1 changed files with 13 additions and 0 deletions
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13
decoder/ihevcd_parse_headers.c
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@ -1789,6 +1789,19 @@ IHEVCD_ERROR_T ihevcd_parse_pps(codec_t *ps_codec)
BITS_PARSE("tiles_enabled_flag", value, ps_bitstrm, 1);
ps_pps->i1_tiles_enabled_flag = value;
/* When tiles are enabled and width or height is >= 4096,
* CTB Size should at least be 32. 16x16 CTBs can result
* in tile position greater than 255 for 4096,
* which decoder does not support.
*/
if((ps_pps->i1_tiles_enabled_flag) &&
(ps_sps->i1_log2_ctb_size == 4) &&
((ps_sps->i2_pic_width_in_luma_samples >= 4096) ||
(ps_sps->i2_pic_height_in_luma_samples >= 4096)))
{
return IHEVCD_INVALID_HEADER;
}
BITS_PARSE("entropy_coding_sync_enabled_flag", value, ps_bitstrm, 1);
ps_pps->i1_entropy_coding_sync_enabled_flag = value;