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Decoder: Fixes in handling errors in Mbaff clips.

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Fixes mb_x, mb_y and first_mb_in_slice for Mbaff error streams

Bug: 30481714

Change-Id: Ie99f3b57e48a620a4bc7aee88031955a2e1b6753
This commit is contained in:
Harish Mahendrakar 2016-10-14 17:19:53 +05:30 • committed by Marco Nelissen
parent 026745ef04
commit 6676aeb419
2 changed files with 8 additions and 7 deletions
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9
decoder/ih264d_parse_pslice.c
View file

@ -1684,14 +1684,14 @@ WORD32 ih264d_mark_err_slice_skip(dec_struct_t * ps_dec,
ps_dec->ps_parse_cur_slice->ppv_map_ref_idx_to_poc = (volatile void **)pu1_buf;
}
ps_dec->ps_cur_slice->u2_first_mb_in_slice = ps_dec->u2_total_mbs_coded << u1_mbaff;
ps_dec->ps_cur_slice->u2_first_mb_in_slice = ps_dec->u2_total_mbs_coded >> u1_mbaff;
ps_dec->ps_cur_slice->i1_slice_alpha_c0_offset = 0;
ps_dec->ps_cur_slice->i1_slice_beta_offset = 0;
if(ps_dec->ps_cur_slice->u1_field_pic_flag)
ps_dec->u2_prv_frame_num = ps_dec->ps_cur_slice->u2_frame_num;
ps_dec->ps_parse_cur_slice->u4_first_mb_in_slice = ps_dec->u2_total_mbs_coded << u1_mbaff;
ps_dec->ps_parse_cur_slice->u4_first_mb_in_slice = ps_dec->u2_total_mbs_coded >> u1_mbaff;
ps_dec->ps_parse_cur_slice->u2_log2Y_crwd = ps_dec->ps_cur_slice->u2_log2Y_crwd;
@ -1714,6 +1714,11 @@ WORD32 ih264d_mark_err_slice_skip(dec_struct_t * ps_dec,
ps_dec->ps_parse_cur_slice->slice_type = P_SLICE;
ps_dec->pf_mvpred_ref_tfr_nby2mb = ih264d_mv_pred_ref_tfr_nby2_pmb;
ps_dec->ps_part = ps_dec->ps_parse_part_params;
ps_dec->u2_mbx =
(MOD(ps_dec->ps_cur_slice->u2_first_mb_in_slice - 1, ps_dec->u2_frm_wd_in_mbs));
ps_dec->u2_mby =
(DIV(ps_dec->ps_cur_slice->u2_first_mb_in_slice - 1, ps_dec->u2_frm_wd_in_mbs));
ps_dec->u2_mby <<= u1_mbaff;
/******************************************************/
/* Parsing / decoding the slice */

6
decoder/ih264d_utils.c
View file

@ -802,11 +802,7 @@ WORD32 ih264d_init_dec_mb_grp(dec_struct_t *ps_dec)
dec_seq_params_t *ps_seq = ps_dec->ps_cur_sps;
UWORD8 u1_frm = ps_seq->u1_frame_mbs_only_flag;
ps_dec->u1_recon_mb_grp = PARSE_MB_GROUP_4;
//NMB set to width in MBs for non-mbaff cases
if(0 == ps_seq->u1_mb_aff_flag)
ps_dec->u1_recon_mb_grp = ps_dec->u2_frm_wd_in_mbs;
ps_dec->u1_recon_mb_grp = ps_dec->u2_frm_wd_in_mbs << ps_seq->u1_mb_aff_flag;
ps_dec->u1_recon_mb_grp_pair = ps_dec->u1_recon_mb_grp >> 1;