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88 changes: 46 additions & 42 deletions 07.bitstream.semantics.md
Original file line number Diff line number Diff line change
Expand Up @@ -854,7 +854,7 @@ structure in the scalability structure data must be for the highest frame rate l

**temporal_group_temporal_switching_up_point_flag[ i ]** is set to 1 if subsequent (in decoding order) pictures with
a temporal_id higher than temporal_group_temporal_id[ i ] do not depend on any picture preceding the
current picture (in coding order) with temporal_id higher than temporal_group_temporal_id[ i ].
current picture (in decoding order) with temporal_id higher than temporal_group_temporal_id[ i ].

**Note:** This condition ensures that switching up to a higher frame rate is possible at the current
picture.
Expand Down Expand Up @@ -898,7 +898,7 @@ be described using temporal group description syntax and are not described in th
| | temporal_group_temporal_switching_up_point_flag[1] | 1
| | temporal_group_spatial_switching_up_point_flag[1] | 0
| | temporal_group_ref_cnt[1] | 1
| | temporal_group_ref_pic_diff[0][0] | 1
| | temporal_group_ref_pic_diff[1][0] | 1
{:.table .table-sm .table-bordered }

##### L1T3 (Informative)
Expand All @@ -920,12 +920,13 @@ be described using temporal group description syntax and are not described in th
| | temporal_group_ref_cnt[1] | 1
| | temporal_group_ref_pic_diff[1][0] | 1
| 2 | temporal_group_temporal_id[2] | 1
| | temporal_group_temporal_switching_up_point_flag[1] | 0
| | temporal_group_temporal_switching_up_point_flag[2] | 1
| | temporal_group_spatial_switching_up_point_flag[2] | 0
| | temporal_group_ref_cnt[2] | 1
| | temporal_group_ref_pic_diff[2][0] | 2
| 3 | temporal_group_temporal_id[3] | 2
| | temporal_group_temporal_switching_up_point_flag[1] | 1
| | temporal_group_spatial_switching_up_point_flag[1] | 0
| | temporal_group_temporal_switching_up_point_flag[3] | 1
| | temporal_group_spatial_switching_up_point_flag[3] | 0
| | temporal_group_ref_cnt[3] | 1
| | temporal_group_ref_pic_diff[3][0] | 1
{:.table .table-sm .table-bordered }
Expand All @@ -936,7 +937,7 @@ be described using temporal group description syntax and are not described in th
| **Layer** | **Spatial Layers Description** | **Value**
| | spatial_layers_cnt_minus_1 | 1
| 0 | spatial_layer_ref_id[0] | 255
| 1 | spatial_layer_ref_id[1] | 0
| 1 | spatial_layer_ref_id[1] | 0
| | |
| **Picture** | **Temporal Group Description** | **Value**
| | temporal_group_size | 1
Expand All @@ -953,7 +954,7 @@ be described using temporal group description syntax and are not described in th
| **Layer** | **Spatial Layers Description** | **Value**
| | spatial_layers_cnt_minus_1 | 1
| 0 | spatial_layer_ref_id[0] | 255
| 1 | spatial_layer_ref_id[1] | 0
| 1 | spatial_layer_ref_id[1] | 0
| | |
| **Picture** | **Temporal Group Description** | **Value**
| | temporal_group_size | 2
Expand All @@ -975,7 +976,7 @@ be described using temporal group description syntax and are not described in th
| **Layer** | **Spatial Layers Description** | **Value**
| | spatial_layers_cnt_minus_1 | 1
| 0 | spatial_layer_ref_id[0] | 255
| 1 | spatial_layer_ref_id[1] | 0
| 1 | spatial_layer_ref_id[1] | 0
| | |
| **Picture** | **Temporal Group Description** | **Value**
| | temporal_group_size | 4
Expand All @@ -990,12 +991,13 @@ be described using temporal group description syntax and are not described in th
| | temporal_group_ref_cnt[1] | 1
| | temporal_group_ref_pic_diff[1][0] | 1
| 2 | temporal_group_temporal_id[2] | 1
| | temporal_group_temporal_switching_up_point_flag[1] | 0
| | temporal_group_temporal_switching_up_point_flag[2] | 1
| | temporal_group_spatial_switching_up_point_flag[2] | 0
| | temporal_group_ref_cnt[2] | 1
| | temporal_group_ref_pic_diff[2][0] | 2
| 3 | temporal_group_temporal_id[3] | 2
| | temporal_group_temporal_switching_up_point_flag[1] | 1
| | temporal_group_spatial_switching_up_point_flag[1] | 0
| | temporal_group_temporal_switching_up_point_flag[3] | 1
| | temporal_group_spatial_switching_up_point_flag[3] | 0
| | temporal_group_ref_cnt[3] | 1
| | temporal_group_ref_pic_diff[3][0] | 1
{:.table .table-sm .table-bordered }
Expand All @@ -1006,7 +1008,7 @@ be described using temporal group description syntax and are not described in th
| **Layer** | **Spatial Layers Description** | **Value**
| | spatial_layers_cnt_minus_1 | 1
| 0 | spatial_layer_ref_id[0] | 255
| 1 | spatial_layer_ref_id[1] | 255
| 1 | spatial_layer_ref_id[1] | 255
| | |
| **Picture** | **Temporal Group Description** | **Value**
| | temporal_group_size | 1
Expand All @@ -1023,7 +1025,7 @@ be described using temporal group description syntax and are not described in th
| **Layer** | **Spatial Layers Description** | **Value**
| | spatial_layers_cnt_minus_1 | 1
| 0 | spatial_layer_ref_id[0] | 255
| 1 | spatial_layer_ref_id[1] | 255
| 1 | spatial_layer_ref_id[1] | 255
| | |
| **Picture** | **Temporal Group Description** | **Value**
| | temporal_group_size | 2
Expand All @@ -1045,7 +1047,7 @@ be described using temporal group description syntax and are not described in th
| **Layer** | **Spatial Layers Description** | **Value**
| | spatial_layers_cnt_minus_1 | 1
| 0 | spatial_layer_ref_id[0] | 255
| 1 | spatial_layer_ref_id[1] | 255
| 1 | spatial_layer_ref_id[1] | 255
| | |
| **Picture** | **Temporal Group Description** | **Value**
| | temporal_group_size | 4
Expand All @@ -1060,12 +1062,13 @@ be described using temporal group description syntax and are not described in th
| | temporal_group_ref_cnt[1] | 1
| | temporal_group_ref_pic_diff[1][0] | 1
| 2 | temporal_group_temporal_id[2] | 1
| | temporal_group_temporal_switching_up_point_flag[1] | 0
| | temporal_group_temporal_switching_up_point_flag[2] | 1
| | temporal_group_spatial_switching_up_point_flag[2] | 0
| | temporal_group_ref_cnt[2] | 1
| | temporal_group_ref_pic_diff[2][0] | 2
| 3 | temporal_group_temporal_id[3] | 2
| | temporal_group_temporal_switching_up_point_flag[1] | 1
| | temporal_group_spatial_switching_up_point_flag[1] | 0
| | temporal_group_temporal_switching_up_point_flag[3] | 1
| | temporal_group_spatial_switching_up_point_flag[3] | 0
| | temporal_group_ref_cnt[3] | 1
| | temporal_group_ref_pic_diff[3][0] | 1
{:.table .table-sm .table-bordered }
Expand All @@ -1074,11 +1077,10 @@ be described using temporal group description syntax and are not described in th

| ----------- | ------------------------------------------------ | ---------------- |
| **Layer** | **Spatial Layers Description** | **Value**
| | spatial_layers_cnt_minus_1 | 1
| | spatial_layers_cnt_minus_1 | 2
| 0 | spatial_layer_ref_id[0] | 255
| 1 | spatial_layer_ref_id[1] | 0
| 2 | spatial_layer_ref_id[1] | 1

| 1 | spatial_layer_ref_id[1] | 0
| 2 | spatial_layer_ref_id[2] | 1
| | |
| **Picture** | **Temporal Group Description** | **Value**
| | temporal_group_size | 1
Expand All @@ -1093,10 +1095,10 @@ be described using temporal group description syntax and are not described in th

| ----------- | ------------------------------------------------ | ---------------- |
| **Layer** | **Spatial Layers Description** | **Value**
| | spatial_layers_cnt_minus_1 | 1
| | spatial_layers_cnt_minus_1 | 2
| 0 | spatial_layer_ref_id[0] | 255
| 1 | spatial_layer_ref_id[1] | 0
| 2 | spatial_layer_ref_id[1] | 1
| 1 | spatial_layer_ref_id[1] | 0
| 2 | spatial_layer_ref_id[2] | 1
| | |
| **Picture** | **Temporal Group Description** | **Value**
| | temporal_group_size | 2
Expand All @@ -1116,10 +1118,10 @@ be described using temporal group description syntax and are not described in th

| ----------- | ------------------------------------------------ | ---------------- |
| **Layer** | **Spatial Layers Description** | **Value**
| | spatial_layers_cnt_minus_1 | 1
| | spatial_layers_cnt_minus_1 | 2
| 0 | spatial_layer_ref_id[0] | 255
| 1 | spatial_layer_ref_id[1] | 0
| 2 | spatial_layer_ref_id[1] | 1
| 1 | spatial_layer_ref_id[1] | 0
| 2 | spatial_layer_ref_id[2] | 1
| | |
| **Picture** | **Temporal Group Description** | **Value**
| | temporal_group_size | 4
Expand All @@ -1134,12 +1136,13 @@ be described using temporal group description syntax and are not described in th
| | temporal_group_ref_cnt[1] | 1
| | temporal_group_ref_pic_diff[1][0] | 1
| 2 | temporal_group_temporal_id[2] | 1
| | temporal_group_temporal_switching_up_point_flag[1] | 0
| | temporal_group_temporal_switching_up_point_flag[2] | 1
| | temporal_group_spatial_switching_up_point_flag[2] | 0
| | temporal_group_ref_cnt[2] | 1
| | temporal_group_ref_pic_diff[2][0] | 2
| 3 | temporal_group_temporal_id[3] | 2
| | temporal_group_temporal_switching_up_point_flag[1] | 1
| | temporal_group_spatial_switching_up_point_flag[1] | 0
| | temporal_group_temporal_switching_up_point_flag[3] | 1
| | temporal_group_spatial_switching_up_point_flag[3] | 0
| | temporal_group_ref_cnt[3] | 1
| | temporal_group_ref_pic_diff[3][0] | 1
{:.table .table-sm .table-bordered }
Expand All @@ -1148,10 +1151,10 @@ be described using temporal group description syntax and are not described in th

| ----------- | ------------------------------------------------ | ---------------- |
| **Layer** | **Spatial Layers Description** | **Value**
| | spatial_layers_cnt_minus_1 | 1
| | spatial_layers_cnt_minus_1 | 2
| 0 | spatial_layer_ref_id[0] | 255
| 1 | spatial_layer_ref_id[1] | 255
| 2 | spatial_layer_ref_id[1] | 255
| 1 | spatial_layer_ref_id[1] | 255
| 2 | spatial_layer_ref_id[2] | 255

| | |
| **Picture** | **Temporal Group Description** | **Value**
Expand All @@ -1167,10 +1170,10 @@ be described using temporal group description syntax and are not described in th

| ----------- | ------------------------------------------------ | ---------------- |
| **Layer** | **Spatial Layers Description** | **Value**
| | spatial_layers_cnt_minus_1 | 1
| | spatial_layers_cnt_minus_1 | 2
| 0 | spatial_layer_ref_id[0] | 255
| 1 | spatial_layer_ref_id[1] | 255
| 2 | spatial_layer_ref_id[1] | 255
| 1 | spatial_layer_ref_id[1] | 255
| 2 | spatial_layer_ref_id[1] | 255
| | |
| **Picture** | **Temporal Group Description** | **Value**
| | temporal_group_size | 2
Expand All @@ -1190,10 +1193,10 @@ be described using temporal group description syntax and are not described in th

| ----------- | ------------------------------------------------ | ---------------- |
| **Layer** | **Spatial Layers Description** | **Value**
| | spatial_layers_cnt_minus_1 | 1
| | spatial_layers_cnt_minus_1 | 2
| 0 | spatial_layer_ref_id[0] | 255
| 1 | spatial_layer_ref_id[1] | 255
| 2 | spatial_layer_ref_id[1] | 255
| 1 | spatial_layer_ref_id[1] | 255
| 2 | spatial_layer_ref_id[1] | 255
| | |
| **Picture** | **Temporal Group Description** | **Value**
| | temporal_group_size | 4
Expand All @@ -1208,12 +1211,13 @@ be described using temporal group description syntax and are not described in th
| | temporal_group_ref_cnt[1] | 1
| | temporal_group_ref_pic_diff[1][0] | 1
| 2 | temporal_group_temporal_id[2] | 1
| | temporal_group_temporal_switching_up_point_flag[1] | 0
| | temporal_group_temporal_switching_up_point_flag[2] | 1
| | temporal_group_spatial_switching_up_point_flag[2] | 0
| | temporal_group_ref_cnt[2] | 1
| | temporal_group_ref_pic_diff[2][0] | 2
| 3 | temporal_group_temporal_id[3] | 2
| | temporal_group_temporal_switching_up_point_flag[1] | 1
| | temporal_group_spatial_switching_up_point_flag[1] | 0
| | temporal_group_temporal_switching_up_point_flag[3] | 1
| | temporal_group_spatial_switching_up_point_flag[3] | 0
| | temporal_group_ref_cnt[3] | 1
| | temporal_group_ref_pic_diff[3][0] | 1
{:.table .table-sm .table-bordered }
Expand Down