On 8/7/2023 11:55 AM, Nuo Mi wrote:
if sh_picture_header_in_slice_header_flag is true
sh_lmcs_used_flag and sh_explicit_scaling_list_used_flag are infered from ph
---
libavcodec/cbs_h266_syntax_template.c | 24 ++++++++++++++----------
1 file changed, 14 insertions(+), 10 deletions(-)
diff --git a/libavcodec/cbs_h266_syntax_template.c
b/libavcodec/cbs_h266_syntax_template.c
index 98a8e033bf..857882655b 100644
--- a/libavcodec/cbs_h266_syntax_template.c
+++ b/libavcodec/cbs_h266_syntax_template.c
@@ -3151,17 +3151,21 @@ static int FUNC(slice_header) (CodedBitstreamContext
*ctx, RWContext *rw,
infer(sh_alf_enabled_flag, 0);
}
- if (ph->ph_lmcs_enabled_flag &&
- !current->sh_picture_header_in_slice_header_flag)
- flag(sh_lmcs_used_flag);
- else
- infer(sh_lmcs_used_flag, 0);
+ if (current->sh_picture_header_in_slice_header_flag) {
+ infer(sh_lmcs_used_flag, ph->ph_lmcs_enabled_flag);
+ infer(sh_explicit_scaling_list_used_flag,
+ ph->ph_explicit_scaling_list_enabled_flag);
+ } else {
+ if (ph->ph_lmcs_enabled_flag)
+ flag(sh_lmcs_used_flag);
+ else
+ infer(sh_lmcs_used_flag, 0);
- if (ph->ph_explicit_scaling_list_enabled_flag &&
- !current->sh_picture_header_in_slice_header_flag)
- flag(sh_explicit_scaling_list_used_flag);
- else
- infer(sh_explicit_scaling_list_used_flag, 0);
+ if (ph->ph_explicit_scaling_list_enabled_flag)
+ flag(sh_explicit_scaling_list_used_flag);
+ else
+ infer(sh_explicit_scaling_list_used_flag, 0);
+ }
if (!pps->pps_rpl_info_in_ph_flag &&
((nal_unit_type != VVC_IDR_W_RADL &&
Do you know which samples from the conformance suite exercise this, and
patches 2 and 3?
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