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avcodec/cbs_h266: fix sh_collocated_from_l0_flag and sh_collocated_ref_idx infer

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we have to infer sh_collocated_from_l0_flag and sh_collocated_ref_idx from picture head if pps_rpl_info_in_ph_flag is true
This commit is contained in:
Nuo Mi 2024-03-27 21:00:58 +08:00
parent cd540a333e
commit 191fbd7ddc
1 changed files with 20 additions and 12 deletions
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32
libavcodec/cbs_h266_syntax_template.c
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@ -3221,19 +3221,27 @@ static int FUNC(slice_header) (CodedBitstreamContext *ctx, RWContext *rw,
flag(sh_cabac_init_flag);
else
infer(sh_cabac_init_flag, 0);
if (ph->ph_temporal_mvp_enabled_flag && !pps->pps_rpl_info_in_ph_flag) {
if (current->sh_slice_type == VVC_SLICE_TYPE_B)
flag(sh_collocated_from_l0_flag);
else
infer(sh_collocated_from_l0_flag, 1);
if ((current->sh_collocated_from_l0_flag &&
current->num_ref_idx_active[0] > 1) ||
(!current->sh_collocated_from_l0_flag &&
current->num_ref_idx_active[1] > 1)) {
unsigned int idx = current->sh_collocated_from_l0_flag ? 0 : 1;
ue(sh_collocated_ref_idx, 0, current->num_ref_idx_active[idx] - 1);
if (ph->ph_temporal_mvp_enabled_flag) {
if (!pps->pps_rpl_info_in_ph_flag) {
if (current->sh_slice_type == VVC_SLICE_TYPE_B)
flag(sh_collocated_from_l0_flag);
else
infer(sh_collocated_from_l0_flag, 1);
if ((current->sh_collocated_from_l0_flag &&
current->num_ref_idx_active[0] > 1) ||
(!current->sh_collocated_from_l0_flag &&
current->num_ref_idx_active[1] > 1)) {
unsigned int idx = current->sh_collocated_from_l0_flag ? 0 : 1;
ue(sh_collocated_ref_idx, 0, current->num_ref_idx_active[idx] - 1);
} else {
infer(sh_collocated_ref_idx, 0);
}
} else {
infer(sh_collocated_ref_idx, 0);
if (current->sh_slice_type == VVC_SLICE_TYPE_B)
infer(sh_collocated_from_l0_flag, ph->ph_collocated_from_l0_flag);
else
infer(sh_collocated_from_l0_flag, 1);
infer(sh_collocated_ref_idx, ph->ph_collocated_ref_idx);
}
}
if (!pps->pps_wp_info_in_ph_flag &&