]> git.sesse.net Git - ffmpeg/blobdiff - libavcodec/cbs_h265_syntax_template.c
avcodec/mpeg4_unpack_bframes_bsf: Use avpriv_find_start_code
[ffmpeg] / libavcodec / cbs_h265_syntax_template.c
index 140c827c9dd2faed3518184c8739c4d2d7352cb8..f1e1bb0e7e60ff7975b0f21e22b28c29b6851bd4 100644 (file)
 static int FUNC(rbsp_trailing_bits)(CodedBitstreamContext *ctx, RWContext *rw)
 {
     int err;
-    av_unused int one = 1, zero = 0;
-    xu(1, rbsp_stop_one_bit, one, 1, 1);
+
+    fixed(1, rbsp_stop_one_bit, 1);
     while (byte_alignment(rw) != 0)
-        xu(1, rbsp_alignment_zero_bit, zero, 0, 0);
+        fixed(1, rbsp_alignment_zero_bit, 0);
 
     return 0;
 }
@@ -50,10 +50,10 @@ static int FUNC(nal_unit_header)(CodedBitstreamContext *ctx, RWContext *rw,
 static int FUNC(byte_alignment)(CodedBitstreamContext *ctx, RWContext *rw)
 {
     int err;
-    av_unused int one = 1, zero = 0;
-    xu(1, alignment_bit_equal_to_one, one, 1, 1);
+
+    fixed(1, alignment_bit_equal_to_one, 1);
     while (byte_alignment(rw) != 0)
-        xu(1, alignment_bit_equal_to_zero, zero, 0, 0);
+        fixed(1, alignment_bit_equal_to_zero, 0);
 
     return 0;
 }
@@ -74,13 +74,13 @@ static int FUNC(extension_data)(CodedBitstreamContext *ctx, RWContext *rw,
         *rw = start;
         allocate(current->data, (current->bit_length + 7) / 8);
         for (k = 0; k < current->bit_length; k++) {
-            xu(1, extension_data, bit, 0, 1);
+            xu(1, extension_data, bit, 0, 1, 0);
             current->data[k / 8] |= bit << (7 - k % 8);
         }
     }
 #else
     for (k = 0; k < current->bit_length; k++)
-        xu(1, extension_data, current->data[k / 8] >> (7 - k % 8), 0, 1);
+        xu(1, extension_data, current->data[k / 8] >> (7 - k % 8), 0, 1, 0);
 #endif
     return 0;
 }
@@ -90,7 +90,6 @@ static int FUNC(profile_tier_level)(CodedBitstreamContext *ctx, RWContext *rw,
                                     int profile_present_flag,
                                     int max_num_sub_layers_minus1)
 {
-    av_unused unsigned int zero = 0;
     int err, i, j;
 
     if (profile_present_flag) {
@@ -99,7 +98,7 @@ static int FUNC(profile_tier_level)(CodedBitstreamContext *ctx, RWContext *rw,
         u(5, general_profile_idc, 0, 31);
 
         for (j = 0; j < 32; j++)
-            flag(general_profile_compatibility_flag[j]);
+            flags(general_profile_compatibility_flag[j], 1, j);
 
         flag(general_progressive_source_flag);
         flag(general_interlaced_source_flag);
@@ -125,15 +124,20 @@ static int FUNC(profile_tier_level)(CodedBitstreamContext *ctx, RWContext *rw,
             if (profile_compatible(5) || profile_compatible(9) ||
                 profile_compatible(10)) {
                 flag(general_max_14bit_constraint_flag);
-                xu(24, general_reserved_zero_33bits, zero, 0, 0);
-                xu(9, general_reserved_zero_33bits, zero, 0, 0);
+                fixed(24, general_reserved_zero_33bits, 0);
+                fixed( 9, general_reserved_zero_33bits, 0);
             } else {
-                xu(24, general_reserved_zero_34bits, zero, 0, 0);
-                xu(10, general_reserved_zero_34bits, zero, 0, 0);
+                fixed(24, general_reserved_zero_34bits, 0);
+                fixed(10, general_reserved_zero_34bits, 0);
             }
+        } else if (profile_compatible(2)) {
+            fixed(7, general_reserved_zero_7bits, 0);
+            flag(general_one_picture_only_constraint_flag);
+            fixed(24, general_reserved_zero_35bits, 0);
+            fixed(11, general_reserved_zero_35bits, 0);
         } else {
-            xu(24, general_reserved_zero_43bits, zero, 0, 0);
-            xu(19, general_reserved_zero_43bits, zero, 0, 0);
+            fixed(24, general_reserved_zero_43bits, 0);
+            fixed(19, general_reserved_zero_43bits, 0);
         }
 
         if (profile_compatible(1) || profile_compatible(2) ||
@@ -141,7 +145,7 @@ static int FUNC(profile_tier_level)(CodedBitstreamContext *ctx, RWContext *rw,
             profile_compatible(5) || profile_compatible(9)) {
             flag(general_inbld_flag);
         } else {
-            xu(1, general_reserved_zero_bit, zero, 0, 0);
+            fixed(1, general_reserved_zero_bit, 0);
         }
 #undef profile_compatible
     }
@@ -149,22 +153,74 @@ static int FUNC(profile_tier_level)(CodedBitstreamContext *ctx, RWContext *rw,
     u(8, general_level_idc, 0, 255);
 
     for (i = 0; i < max_num_sub_layers_minus1; i++) {
-        flag(sub_layer_profile_present_flag[i]);
-        flag(sub_layer_level_present_flag[i]);
+        flags(sub_layer_profile_present_flag[i], 1, i);
+        flags(sub_layer_level_present_flag[i],   1, i);
     }
 
     if (max_num_sub_layers_minus1 > 0) {
-        for (i = max_num_sub_layers_minus1; i < 8; i++) {
-            av_unused int zero = 0;
-            xu(2, reserved_zero_2bits, zero, 0, 0);
-        }
+        for (i = max_num_sub_layers_minus1; i < 8; i++)
+            fixed(2, reserved_zero_2bits, 0);
     }
 
     for (i = 0; i < max_num_sub_layers_minus1; i++) {
-        if (current->sub_layer_profile_present_flag[i])
-            return AVERROR_PATCHWELCOME;
+        if (current->sub_layer_profile_present_flag[i]) {
+            us(2, sub_layer_profile_space[i], 0, 0, 1, i);
+            flags(sub_layer_tier_flag[i],           1, i);
+            us(5, sub_layer_profile_idc[i], 0, 31,  1, i);
+
+            for (j = 0; j < 32; j++)
+                flags(sub_layer_profile_compatibility_flag[i][j], 2, i, j);
+
+            flags(sub_layer_progressive_source_flag[i],    1, i);
+            flags(sub_layer_interlaced_source_flag[i],     1, i);
+            flags(sub_layer_non_packed_constraint_flag[i], 1, i);
+            flags(sub_layer_frame_only_constraint_flag[i], 1, i);
+
+#define profile_compatible(x) (current->sub_layer_profile_idc[i] == (x) ||   \
+                               current->sub_layer_profile_compatibility_flag[i][x])
+            if (profile_compatible(4) || profile_compatible(5) ||
+                profile_compatible(6) || profile_compatible(7) ||
+                profile_compatible(8) || profile_compatible(9) ||
+                profile_compatible(10)) {
+                flags(sub_layer_max_12bit_constraint_flag[i],        1, i);
+                flags(sub_layer_max_10bit_constraint_flag[i],        1, i);
+                flags(sub_layer_max_8bit_constraint_flag[i],         1, i);
+                flags(sub_layer_max_422chroma_constraint_flag[i],    1, i);
+                flags(sub_layer_max_420chroma_constraint_flag[i],    1, i);
+                flags(sub_layer_max_monochrome_constraint_flag[i],   1, i);
+                flags(sub_layer_intra_constraint_flag[i],            1, i);
+                flags(sub_layer_one_picture_only_constraint_flag[i], 1, i);
+                flags(sub_layer_lower_bit_rate_constraint_flag[i],   1, i);
+
+                if (profile_compatible(5)) {
+                    flags(sub_layer_max_14bit_constraint_flag[i], 1, i);
+                    fixed(24, sub_layer_reserved_zero_33bits, 0);
+                    fixed( 9, sub_layer_reserved_zero_33bits, 0);
+                } else {
+                    fixed(24, sub_layer_reserved_zero_34bits, 0);
+                    fixed(10, sub_layer_reserved_zero_34bits, 0);
+                }
+            } else if (profile_compatible(2)) {
+                fixed(7, sub_layer_reserved_zero_7bits, 0);
+                flags(sub_layer_one_picture_only_constraint_flag[i], 1, i);
+                fixed(24, sub_layer_reserved_zero_43bits, 0);
+                fixed(11, sub_layer_reserved_zero_43bits, 0);
+            } else {
+                fixed(24, sub_layer_reserved_zero_43bits, 0);
+                fixed(19, sub_layer_reserved_zero_43bits, 0);
+            }
+
+            if (profile_compatible(1) || profile_compatible(2) ||
+                profile_compatible(3) || profile_compatible(4) ||
+                profile_compatible(5) || profile_compatible(9)) {
+                flags(sub_layer_inbld_flag[i], 1, i);
+            } else {
+                fixed(1, sub_layer_reserved_zero_bit, 0);
+            }
+#undef profile_compatible
+        }
         if (current->sub_layer_level_present_flag[i])
-            return AVERROR_PATCHWELCOME;
+            us(8, sub_layer_level_idc[i], 0, 255, 1, i);
     }
 
     return 0;
@@ -183,13 +239,13 @@ static int FUNC(sub_layer_hrd_parameters)(CodedBitstreamContext *ctx, RWContext
         current = &hrd->vcl_sub_layer_hrd_parameters[sub_layer_id];
 
     for (i = 0; i <= hrd->cpb_cnt_minus1[sub_layer_id]; i++) {
-        ue(bit_rate_value_minus1[i], 0, UINT32_MAX - 1);
-        ue(cpb_size_value_minus1[i], 0, UINT32_MAX - 1);
+        ues(bit_rate_value_minus1[i], 0, UINT32_MAX - 1, 1, i);
+        ues(cpb_size_value_minus1[i], 0, UINT32_MAX - 1, 1, i);
         if (hrd->sub_pic_hrd_params_present_flag) {
-            ue(cpb_size_du_value_minus1[i], 0, UINT32_MAX - 1);
-            ue(bit_rate_du_value_minus1[i], 0, UINT32_MAX - 1);
+            ues(cpb_size_du_value_minus1[i], 0, UINT32_MAX - 1, 1, i);
+            ues(bit_rate_du_value_minus1[i], 0, UINT32_MAX - 1, 1, i);
         }
-        flag(cbr_flag[i]);
+        flags(cbr_flag[i], 1, i);
     }
 
     return 0;
@@ -233,21 +289,21 @@ static int FUNC(hrd_parameters)(CodedBitstreamContext *ctx, RWContext *rw,
     }
 
     for (i = 0; i <= max_num_sub_layers_minus1; i++) {
-        flag(fixed_pic_rate_general_flag[i]);
+        flags(fixed_pic_rate_general_flag[i], 1, i);
 
         if (!current->fixed_pic_rate_general_flag[i])
-            flag(fixed_pic_rate_within_cvs_flag[i]);
+            flags(fixed_pic_rate_within_cvs_flag[i], 1, i);
         else
             infer(fixed_pic_rate_within_cvs_flag[i], 1);
 
         if (current->fixed_pic_rate_within_cvs_flag[i]) {
-            ue(elemental_duration_in_tc_minus1[i], 0, 2047);
+            ues(elemental_duration_in_tc_minus1[i], 0, 2047, 1, i);
             infer(low_delay_hrd_flag[i], 0);
         } else
-            flag(low_delay_hrd_flag[i]);
+            flags(low_delay_hrd_flag[i], 1, i);
 
         if (!current->low_delay_hrd_flag[i])
-            ue(cpb_cnt_minus1[i], 0, 31);
+            ues(cpb_cnt_minus1[i], 0, 31, 1, i);
         else
             infer(cpb_cnt_minus1[i], 0);
 
@@ -386,10 +442,7 @@ static int FUNC(vps)(CodedBitstreamContext *ctx, RWContext *rw,
         return AVERROR_INVALIDDATA;
     }
 
-    {
-        av_unused uint16_t ffff = 0xffff;
-        xu(16, vps_reserved_0xffff_16bits, ffff, 0xffff, 0xffff);
-    }
+    fixed(16, vps_reserved_0xffff_16bits, 0xffff);
 
     CHECK(FUNC(profile_tier_level)(ctx, rw, &current->profile_tier_level,
                                    1, current->vps_max_sub_layers_minus1));
@@ -398,9 +451,12 @@ static int FUNC(vps)(CodedBitstreamContext *ctx, RWContext *rw,
     for (i = (current->vps_sub_layer_ordering_info_present_flag ?
               0 : current->vps_max_sub_layers_minus1);
          i <= current->vps_max_sub_layers_minus1; i++) {
-        ue(vps_max_dec_pic_buffering_minus1[i], 0, HEVC_MAX_DPB_SIZE - 1);
-        ue(vps_max_num_reorder_pics[i],         0, current->vps_max_dec_pic_buffering_minus1[i]);
-        ue(vps_max_latency_increase_plus1[i],   0, UINT32_MAX - 1);
+        ues(vps_max_dec_pic_buffering_minus1[i],
+            0, HEVC_MAX_DPB_SIZE - 1,                        1, i);
+        ues(vps_max_num_reorder_pics[i],
+            0, current->vps_max_dec_pic_buffering_minus1[i], 1, i);
+        ues(vps_max_latency_increase_plus1[i],
+            0, UINT32_MAX - 1,                               1, i);
     }
     if (!current->vps_sub_layer_ordering_info_present_flag) {
         for (i = 0; i < current->vps_max_sub_layers_minus1; i++) {
@@ -417,7 +473,7 @@ static int FUNC(vps)(CodedBitstreamContext *ctx, RWContext *rw,
     ue(vps_num_layer_sets_minus1, 0, HEVC_MAX_LAYER_SETS - 1);
     for (i = 1; i <= current->vps_num_layer_sets_minus1; i++) {
         for (j = 0; j <= current->vps_max_layer_id; j++)
-            flag(layer_id_included_flag[i][j]);
+            flags(layer_id_included_flag[i][j], 2, i, j);
     }
     for (j = 0; j <= current->vps_max_layer_id; j++)
         infer(layer_id_included_flag[0][j], j == 0);
@@ -431,11 +487,11 @@ static int FUNC(vps)(CodedBitstreamContext *ctx, RWContext *rw,
             ue(vps_num_ticks_poc_diff_one_minus1, 0, UINT32_MAX - 1);
         ue(vps_num_hrd_parameters, 0, current->vps_num_layer_sets_minus1 + 1);
         for (i = 0; i < current->vps_num_hrd_parameters; i++) {
-            ue(hrd_layer_set_idx[i],
-               current->vps_base_layer_internal_flag ? 0 : 1,
-               current->vps_num_layer_sets_minus1);
+            ues(hrd_layer_set_idx[i],
+                current->vps_base_layer_internal_flag ? 0 : 1,
+                current->vps_num_layer_sets_minus1, 1, i);
             if (i > 0)
-                flag(cprms_present_flag[i]);
+                flags(cprms_present_flag[i], 1, i);
             else
                 infer(cprms_present_flag[0], 1);
 
@@ -489,9 +545,9 @@ static int FUNC(st_ref_pic_set)(CodedBitstreamContext *ctx, RWContext *rw,
             (current->abs_delta_rps_minus1 + 1);
 
         for (j = 0; j <= num_delta_pocs; j++) {
-            flag(used_by_curr_pic_flag[j]);
+            flags(used_by_curr_pic_flag[j], 1, j);
             if (!current->used_by_curr_pic_flag[j])
-                flag(use_delta_flag[j]);
+                flags(use_delta_flag[j], 1, j);
             else
                 infer(use_delta_flag[j], 1);
         }
@@ -586,13 +642,13 @@ static int FUNC(st_ref_pic_set)(CodedBitstreamContext *ctx, RWContext *rw,
         ue(num_positive_pics, 0, 15 - current->num_negative_pics);
 
         for (i = 0; i < current->num_negative_pics; i++) {
-            ue(delta_poc_s0_minus1[i], 0, INT16_MAX);
-            flag(used_by_curr_pic_s0_flag[i]);
+            ues(delta_poc_s0_minus1[i], 0, INT16_MAX, 1, i);
+            flags(used_by_curr_pic_s0_flag[i],        1, i);
         }
 
         for (i = 0; i < current->num_positive_pics; i++) {
-            ue(delta_poc_s1_minus1[i], 0, INT16_MAX);
-            flag(used_by_curr_pic_s1_flag[i]);
+            ues(delta_poc_s1_minus1[i], 0, INT16_MAX, 1, i);
+            flags(used_by_curr_pic_s1_flag[i],        1, i);
         }
     }
 
@@ -607,18 +663,21 @@ static int FUNC(scaling_list_data)(CodedBitstreamContext *ctx, RWContext *rw,
 
     for (sizeId = 0; sizeId < 4; sizeId++) {
         for (matrixId = 0; matrixId < 6; matrixId += (sizeId == 3 ? 3 : 1)) {
-            flag(scaling_list_pred_mode_flag[sizeId][matrixId]);
+            flags(scaling_list_pred_mode_flag[sizeId][matrixId],
+                  2, sizeId, matrixId);
             if (!current->scaling_list_pred_mode_flag[sizeId][matrixId]) {
-                ue(scaling_list_pred_matrix_id_delta[sizeId][matrixId],
-                   0, sizeId == 3 ? matrixId / 3 : matrixId);
+                ues(scaling_list_pred_matrix_id_delta[sizeId][matrixId],
+                    0, sizeId == 3 ? matrixId / 3 : matrixId,
+                    2, sizeId, matrixId);
             } else {
                 n = FFMIN(64, 1 << (4 + (sizeId << 1)));
-                if (sizeId > 1)
-                    se(scaling_list_dc_coef_minus8[sizeId - 2][matrixId], -7, +247);
+                if (sizeId > 1) {
+                    ses(scaling_list_dc_coef_minus8[sizeId - 2][matrixId], -7, +247,
+                        2, sizeId - 2, matrixId);
+                }
                 for (i = 0; i < n; i++) {
-                    xse(scaling_list_delta_coeff,
-                        current->scaling_list_delta_coeff[sizeId][matrixId][i],
-                        -128, +127);
+                    ses(scaling_list_delta_coeff[sizeId][matrixId][i],
+                        -128, +127, 3, sizeId, matrixId, i);
                 }
             }
         }
@@ -664,8 +723,8 @@ static int FUNC(sps_scc_extension)(CodedBitstreamContext *ctx, RWContext *rw,
                 int bit_depth = comp == 0 ? current->bit_depth_luma_minus8 + 8
                                           : current->bit_depth_chroma_minus8 + 8;
                 for (i = 0; i <= current->sps_num_palette_predictor_initializer_minus1; i++)
-                    u(bit_depth, sps_palette_predictor_initializers[comp][i],
-                      0, MAX_UINT_BITS(bit_depth));
+                    us(bit_depth, sps_palette_predictor_initializers[comp][i],
+                       0, MAX_UINT_BITS(bit_depth), 2, comp, i);
             }
         }
     }
@@ -748,9 +807,12 @@ static int FUNC(sps)(CodedBitstreamContext *ctx, RWContext *rw,
     for (i = (current->sps_sub_layer_ordering_info_present_flag ?
               0 : current->sps_max_sub_layers_minus1);
          i <= current->sps_max_sub_layers_minus1; i++) {
-        ue(sps_max_dec_pic_buffering_minus1[i], 0, HEVC_MAX_DPB_SIZE - 1);
-        ue(sps_max_num_reorder_pics[i],         0, current->sps_max_dec_pic_buffering_minus1[i]);
-        ue(sps_max_latency_increase_plus1[i],   0, UINT32_MAX - 1);
+        ues(sps_max_dec_pic_buffering_minus1[i],
+            0, HEVC_MAX_DPB_SIZE - 1,                        1, i);
+        ues(sps_max_num_reorder_pics[i],
+            0, current->sps_max_dec_pic_buffering_minus1[i], 1, i);
+        ues(sps_max_latency_increase_plus1[i],
+            0, UINT32_MAX - 1,                               1, i);
     }
     if (!current->sps_sub_layer_ordering_info_present_flag) {
         for (i = 0; i < current->sps_max_sub_layers_minus1; i++) {
@@ -825,10 +887,10 @@ static int FUNC(sps)(CodedBitstreamContext *ctx, RWContext *rw,
     if (current->long_term_ref_pics_present_flag) {
         ue(num_long_term_ref_pics_sps, 0, HEVC_MAX_LONG_TERM_REF_PICS);
         for (i = 0; i < current->num_long_term_ref_pics_sps; i++) {
-            u(current->log2_max_pic_order_cnt_lsb_minus4 + 4,
-              lt_ref_pic_poc_lsb_sps[i],
-              0, MAX_UINT_BITS(current->log2_max_pic_order_cnt_lsb_minus4 + 4));
-            flag(used_by_curr_pic_lt_sps_flag[i]);
+            us(current->log2_max_pic_order_cnt_lsb_minus4 + 4,
+               lt_ref_pic_poc_lsb_sps[i],
+               0, MAX_UINT_BITS(current->log2_max_pic_order_cnt_lsb_minus4 + 4), 1, i);
+            flags(used_by_curr_pic_lt_sps_flag[i], 1, i);
         }
     }
 
@@ -881,8 +943,8 @@ static int FUNC(pps_range_extension)(CodedBitstreamContext *ctx, RWContext *rw,
            0, sps->log2_diff_max_min_luma_coding_block_size);
         ue(chroma_qp_offset_list_len_minus1, 0, 5);
         for (i = 0; i <= current->chroma_qp_offset_list_len_minus1; i++) {
-            se(cb_qp_offset_list[i], -12, +12);
-            se(cr_qp_offset_list[i], -12, +12);
+            ses(cb_qp_offset_list[i], -12, +12, 1, i);
+            ses(cr_qp_offset_list[i], -12, +12, 1, i);
         }
     }
 
@@ -924,8 +986,8 @@ static int FUNC(pps_scc_extension)(CodedBitstreamContext *ctx, RWContext *rw,
                 int bit_depth = comp == 0 ? current->luma_bit_depth_entry_minus8 + 8
                                           : current->chroma_bit_depth_entry_minus8 + 8;
                 for (i = 0; i < current->pps_num_palette_predictor_initializer; i++)
-                    u(bit_depth, pps_palette_predictor_initializers[comp][i],
-                      0, MAX_UINT_BITS(bit_depth));
+                    us(bit_depth, pps_palette_predictor_initializers[comp][i],
+                       0, MAX_UINT_BITS(bit_depth), 2, comp, i);
             }
         }
     }
@@ -991,9 +1053,9 @@ static int FUNC(pps)(CodedBitstreamContext *ctx, RWContext *rw,
         flag(uniform_spacing_flag);
         if (!current->uniform_spacing_flag) {
             for (i = 0; i < current->num_tile_columns_minus1; i++)
-                ue(column_width_minus1[i], 0, sps->pic_width_in_luma_samples);
+                ues(column_width_minus1[i], 0, sps->pic_width_in_luma_samples,  1, i);
             for (i = 0; i < current->num_tile_rows_minus1; i++)
-                ue(row_height_minus1[i],   0, sps->pic_height_in_luma_samples);
+                ues(row_height_minus1[i],   0, sps->pic_height_in_luma_samples, 1, i);
         }
         flag(loop_filter_across_tiles_enabled_flag);
     } else {
@@ -1084,14 +1146,14 @@ static int FUNC(ref_pic_lists_modification)(CodedBitstreamContext *ctx, RWContex
     flag(ref_pic_list_modification_flag_l0);
     if (current->ref_pic_list_modification_flag_l0) {
         for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++)
-            u(entry_size, list_entry_l0[i], 0, num_pic_total_curr - 1);
+            us(entry_size, list_entry_l0[i], 0, num_pic_total_curr - 1, 1, i);
     }
 
     if (current->slice_type == HEVC_SLICE_B) {
         flag(ref_pic_list_modification_flag_l1);
         if (current->ref_pic_list_modification_flag_l1) {
             for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++)
-                u(entry_size, list_entry_l1[i], 0, num_pic_total_curr - 1);
+                us(entry_size, list_entry_l1[i], 0, num_pic_total_curr - 1, 1, i);
         }
     }
 
@@ -1115,14 +1177,14 @@ static int FUNC(pred_weight_table)(CodedBitstreamContext *ctx, RWContext *rw,
 
     for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) {
         if (1 /* is not same POC and same layer_id */)
-            flag(luma_weight_l0_flag[i]);
+            flags(luma_weight_l0_flag[i], 1, i);
         else
             infer(luma_weight_l0_flag[i], 0);
     }
     if (chroma) {
         for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) {
             if (1 /* is not same POC and same layer_id */)
-                flag(chroma_weight_l0_flag[i]);
+                flags(chroma_weight_l0_flag[i], 1, i);
             else
                 infer(chroma_weight_l0_flag[i], 0);
         }
@@ -1130,20 +1192,20 @@ static int FUNC(pred_weight_table)(CodedBitstreamContext *ctx, RWContext *rw,
 
     for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) {
         if (current->luma_weight_l0_flag[i]) {
-            se(delta_luma_weight_l0[i], -128, +127);
-            se(luma_offset_l0[i],
-               -(1 << (sps->bit_depth_luma_minus8 + 8 - 1)),
-               ((1 << (sps->bit_depth_luma_minus8 + 8 - 1)) - 1));
+            ses(delta_luma_weight_l0[i], -128, +127, 1, i);
+            ses(luma_offset_l0[i],
+                -(1 << (sps->bit_depth_luma_minus8 + 8 - 1)),
+                ((1 << (sps->bit_depth_luma_minus8 + 8 - 1)) - 1), 1, i);
         } else {
             infer(delta_luma_weight_l0[i], 0);
             infer(luma_offset_l0[i],       0);
         }
         if (current->chroma_weight_l0_flag[i]) {
             for (j = 0; j < 2; j++) {
-                se(delta_chroma_weight_l0[i][j], -128, +127);
-                se(chroma_offset_l0[i][j],
-                   -(4 << (sps->bit_depth_chroma_minus8 + 8 - 1)),
-                   ((4 << (sps->bit_depth_chroma_minus8 + 8 - 1)) - 1));
+                ses(delta_chroma_weight_l0[i][j], -128, +127, 2, i, j);
+                ses(chroma_offset_l0[i][j],
+                    -(4 << (sps->bit_depth_chroma_minus8 + 8 - 1)),
+                    ((4 << (sps->bit_depth_chroma_minus8 + 8 - 1)) - 1), 2, i, j);
             }
         } else {
             for (j = 0; j < 2; j++) {
@@ -1156,14 +1218,14 @@ static int FUNC(pred_weight_table)(CodedBitstreamContext *ctx, RWContext *rw,
     if (current->slice_type == HEVC_SLICE_B) {
         for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) {
             if (1 /* RefPicList1[i] is not CurrPic, nor is it in a different layer */)
-                flag(luma_weight_l1_flag[i]);
+                flags(luma_weight_l1_flag[i], 1, i);
             else
                 infer(luma_weight_l1_flag[i], 0);
         }
         if (chroma) {
             for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) {
                 if (1 /* RefPicList1[i] is not CurrPic, nor is it in a different layer */)
-                    flag(chroma_weight_l1_flag[i]);
+                    flags(chroma_weight_l1_flag[i], 1, i);
                 else
                     infer(chroma_weight_l1_flag[i], 0);
             }
@@ -1171,20 +1233,20 @@ static int FUNC(pred_weight_table)(CodedBitstreamContext *ctx, RWContext *rw,
 
         for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) {
             if (current->luma_weight_l1_flag[i]) {
-                se(delta_luma_weight_l1[i], -128, +127);
-                se(luma_offset_l1[i],
-                   -(1 << (sps->bit_depth_luma_minus8 + 8 - 1)),
-                   ((1 << (sps->bit_depth_luma_minus8 + 8 - 1)) - 1));
+                ses(delta_luma_weight_l1[i], -128, +127, 1, i);
+                ses(luma_offset_l1[i],
+                    -(1 << (sps->bit_depth_luma_minus8 + 8 - 1)),
+                    ((1 << (sps->bit_depth_luma_minus8 + 8 - 1)) - 1), 1, i);
             } else {
                 infer(delta_luma_weight_l1[i], 0);
                 infer(luma_offset_l1[i],       0);
             }
             if (current->chroma_weight_l1_flag[i]) {
                 for (j = 0; j < 2; j++) {
-                    se(delta_chroma_weight_l1[i][j], -128, +127);
-                    se(chroma_offset_l1[i][j],
-                       -(4 << (sps->bit_depth_chroma_minus8 + 8 - 1)),
-                       ((4 << (sps->bit_depth_chroma_minus8 + 8 - 1)) - 1));
+                    ses(delta_chroma_weight_l1[i][j], -128, +127, 2, i, j);
+                    ses(chroma_offset_l1[i][j],
+                        -(4 << (sps->bit_depth_chroma_minus8 + 8 - 1)),
+                        ((4 << (sps->bit_depth_chroma_minus8 + 8 - 1)) - 1), 2, i, j);
                 }
             } else {
                 for (j = 0; j < 2; j++) {
@@ -1259,7 +1321,7 @@ static int FUNC(slice_segment_header)(CodedBitstreamContext *ctx, RWContext *rw,
 
     if (!current->dependent_slice_segment_flag) {
         for (i = 0; i < pps->num_extra_slice_header_bits; i++)
-            flag(slice_reserved_flag[i]);
+            flags(slice_reserved_flag[i], 1, i);
 
         ue(slice_type, 0, 2);
 
@@ -1315,20 +1377,20 @@ static int FUNC(slice_segment_header)(CodedBitstreamContext *ctx, RWContext *rw,
                                 current->num_long_term_pics; i++) {
                     if (i < current->num_long_term_sps) {
                         if (sps->num_long_term_ref_pics_sps > 1)
-                            u(idx_size, lt_idx_sps[i],
-                              0, sps->num_long_term_ref_pics_sps - 1);
+                            us(idx_size, lt_idx_sps[i],
+                               0, sps->num_long_term_ref_pics_sps - 1, 1, i);
                         if (sps->used_by_curr_pic_lt_sps_flag[current->lt_idx_sps[i]])
                             ++num_pic_total_curr;
                     } else {
-                        u(sps->log2_max_pic_order_cnt_lsb_minus4 + 4, poc_lsb_lt[i],
-                          0, MAX_UINT_BITS(sps->log2_max_pic_order_cnt_lsb_minus4 + 4));
-                        flag(used_by_curr_pic_lt_flag[i]);
+                        us(sps->log2_max_pic_order_cnt_lsb_minus4 + 4, poc_lsb_lt[i],
+                           0, MAX_UINT_BITS(sps->log2_max_pic_order_cnt_lsb_minus4 + 4), 1, i);
+                        flags(used_by_curr_pic_lt_flag[i], 1, i);
                         if (current->used_by_curr_pic_lt_flag[i])
                             ++num_pic_total_curr;
                     }
-                    flag(delta_poc_msb_present_flag[i]);
+                    flags(delta_poc_msb_present_flag[i], 1, i);
                     if (current->delta_poc_msb_present_flag[i])
-                        ue(delta_poc_msb_cycle_lt[i], 0, UINT32_MAX - 1);
+                        ues(delta_poc_msb_cycle_lt[i], 0, UINT32_MAX - 1, 1, i);
                     else
                         infer(delta_poc_msb_cycle_lt[i], 0);
                 }
@@ -1486,18 +1548,673 @@ static int FUNC(slice_segment_header)(CodedBitstreamContext *ctx, RWContext *rw,
         if (current->num_entry_point_offsets > 0) {
             ue(offset_len_minus1, 0, 31);
             for (i = 0; i < current->num_entry_point_offsets; i++)
-                u(current->offset_len_minus1 + 1, entry_point_offset_minus1[i],
-                  0, MAX_UINT_BITS(current->offset_len_minus1 + 1));
+                us(current->offset_len_minus1 + 1, entry_point_offset_minus1[i],
+                   0, MAX_UINT_BITS(current->offset_len_minus1 + 1), 1, i);
         }
     }
 
     if (pps->slice_segment_header_extension_present_flag) {
         ue(slice_segment_header_extension_length, 0, 256);
         for (i = 0; i < current->slice_segment_header_extension_length; i++)
-            u(8, slice_segment_header_extension_data_byte[i], 0x00, 0xff);
+            us(8, slice_segment_header_extension_data_byte[i], 0x00, 0xff, 1, i);
     }
 
     CHECK(FUNC(byte_alignment)(ctx, rw));
 
     return 0;
 }
+
+static int FUNC(sei_buffering_period)(CodedBitstreamContext *ctx, RWContext *rw,
+                                      H265RawSEIBufferingPeriod *current,
+                                      uint32_t *payload_size)
+{
+    CodedBitstreamH265Context *h265 = ctx->priv_data;
+    const H265RawSPS *sps;
+    const H265RawHRDParameters *hrd;
+    int err, i, length;
+
+#ifdef READ
+    int start_pos, end_pos, bits_left;
+    start_pos = get_bits_count(rw);
+#endif
+
+    HEADER("Buffering Period");
+
+    ue(bp_seq_parameter_set_id, 0, HEVC_MAX_SPS_COUNT - 1);
+
+    sps = h265->sps[current->bp_seq_parameter_set_id];
+    if (!sps) {
+        av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
+               current->bp_seq_parameter_set_id);
+        return AVERROR_INVALIDDATA;
+    }
+    h265->active_sps = sps;
+
+    if (!sps->vui_parameters_present_flag ||
+        !sps->vui.vui_hrd_parameters_present_flag) {
+        av_log(ctx->log_ctx, AV_LOG_ERROR, "Buffering period SEI requires "
+               "HRD parameters to be present in SPS.\n");
+        return AVERROR_INVALIDDATA;
+    }
+    hrd = &sps->vui.hrd_parameters;
+    if (!hrd->nal_hrd_parameters_present_flag &&
+        !hrd->vcl_hrd_parameters_present_flag) {
+        av_log(ctx->log_ctx, AV_LOG_ERROR, "Buffering period SEI requires "
+               "NAL or VCL HRD parameters to be present.\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    if (!hrd->sub_pic_hrd_params_present_flag)
+        flag(irap_cpb_params_present_flag);
+    else
+        infer(irap_cpb_params_present_flag, 0);
+    if (current->irap_cpb_params_present_flag) {
+        length = hrd->au_cpb_removal_delay_length_minus1 + 1;
+        u(length, cpb_delay_offset, 0, MAX_UINT_BITS(length));
+        length = hrd->dpb_output_delay_length_minus1 + 1;
+        u(length, dpb_delay_offset, 0, MAX_UINT_BITS(length));
+    } else {
+        infer(cpb_delay_offset, 0);
+        infer(dpb_delay_offset, 0);
+    }
+
+    flag(concatenation_flag);
+
+    length = hrd->au_cpb_removal_delay_length_minus1 + 1;
+    u(length, au_cpb_removal_delay_delta_minus1, 0, MAX_UINT_BITS(length));
+
+    if (hrd->nal_hrd_parameters_present_flag) {
+        for (i = 0; i <= hrd->cpb_cnt_minus1[0]; i++) {
+            length = hrd->initial_cpb_removal_delay_length_minus1 + 1;
+
+            us(length, nal_initial_cpb_removal_delay[i],
+               0, MAX_UINT_BITS(length), 1, i);
+            us(length, nal_initial_cpb_removal_offset[i],
+               0, MAX_UINT_BITS(length), 1, i);
+
+            if (hrd->sub_pic_hrd_params_present_flag ||
+                current->irap_cpb_params_present_flag) {
+                us(length, nal_initial_alt_cpb_removal_delay[i],
+                   0, MAX_UINT_BITS(length), 1, i);
+                us(length, nal_initial_alt_cpb_removal_offset[i],
+                   0, MAX_UINT_BITS(length), 1, i);
+            }
+        }
+    }
+    if (hrd->vcl_hrd_parameters_present_flag) {
+        for (i = 0; i <= hrd->cpb_cnt_minus1[0]; i++) {
+            length = hrd->initial_cpb_removal_delay_length_minus1 + 1;
+
+            us(length, vcl_initial_cpb_removal_delay[i],
+               0, MAX_UINT_BITS(length), 1, i);
+            us(length, vcl_initial_cpb_removal_offset[i],
+               0, MAX_UINT_BITS(length), 1, i);
+
+            if (hrd->sub_pic_hrd_params_present_flag ||
+                current->irap_cpb_params_present_flag) {
+                us(length, vcl_initial_alt_cpb_removal_delay[i],
+                   0, MAX_UINT_BITS(length), 1, i);
+                us(length, vcl_initial_alt_cpb_removal_offset[i],
+                   0, MAX_UINT_BITS(length), 1, i);
+            }
+        }
+    }
+
+#ifdef READ
+    // payload_extension_present() - true if we are before the last 1-bit
+    // in the payload structure, which must be in the last byte.
+    end_pos = get_bits_count(rw);
+    bits_left = *payload_size * 8 - (end_pos - start_pos);
+    if (bits_left > 0 &&
+        (bits_left > 7 || ff_ctz(show_bits(rw, bits_left)) < bits_left - 1))
+        flag(use_alt_cpb_params_flag);
+    else
+        infer(use_alt_cpb_params_flag, 0);
+#else
+    if (current->use_alt_cpb_params_flag)
+        flag(use_alt_cpb_params_flag);
+#endif
+
+    return 0;
+}
+
+static int FUNC(sei_pic_timing)(CodedBitstreamContext *ctx, RWContext *rw,
+                                H265RawSEIPicTiming *current)
+{
+    CodedBitstreamH265Context *h265 = ctx->priv_data;
+    const H265RawSPS *sps;
+    const H265RawHRDParameters *hrd;
+    int err, expected_source_scan_type, i, length;
+
+    HEADER("Picture Timing");
+
+    sps = h265->active_sps;
+    if (!sps) {
+        av_log(ctx->log_ctx, AV_LOG_ERROR,
+               "No active SPS for pic_timing.\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    expected_source_scan_type = 2 -
+        2 * sps->profile_tier_level.general_interlaced_source_flag -
+        sps->profile_tier_level.general_progressive_source_flag;
+
+    if (sps->vui.frame_field_info_present_flag) {
+        u(4, pic_struct, 0, 12);
+        u(2, source_scan_type,
+          expected_source_scan_type >= 0 ? expected_source_scan_type : 0,
+          expected_source_scan_type >= 0 ? expected_source_scan_type : 2);
+        flag(duplicate_flag);
+    } else {
+        infer(pic_struct, 0);
+        infer(source_scan_type,
+              expected_source_scan_type >= 0 ? expected_source_scan_type : 2);
+        infer(duplicate_flag, 0);
+    }
+
+    if (sps->vui_parameters_present_flag &&
+        sps->vui.vui_hrd_parameters_present_flag)
+        hrd = &sps->vui.hrd_parameters;
+    else
+        hrd = NULL;
+    if (hrd && (hrd->nal_hrd_parameters_present_flag ||
+                hrd->vcl_hrd_parameters_present_flag)) {
+        length = hrd->au_cpb_removal_delay_length_minus1 + 1;
+        u(length, au_cpb_removal_delay_minus1, 0, MAX_UINT_BITS(length));
+
+        length = hrd->dpb_output_delay_length_minus1 + 1;
+        u(length, pic_dpb_output_delay, 0, MAX_UINT_BITS(length));
+
+        if (hrd->sub_pic_hrd_params_present_flag) {
+            length = hrd->dpb_output_delay_du_length_minus1 + 1;
+            u(length, pic_dpb_output_du_delay, 0, MAX_UINT_BITS(length));
+        }
+
+        if (hrd->sub_pic_hrd_params_present_flag &&
+            hrd->sub_pic_cpb_params_in_pic_timing_sei_flag) {
+            // Each decoding unit must contain at least one slice segment.
+            ue(num_decoding_units_minus1, 0, HEVC_MAX_SLICE_SEGMENTS);
+            flag(du_common_cpb_removal_delay_flag);
+
+            length = hrd->du_cpb_removal_delay_increment_length_minus1 + 1;
+            if (current->du_common_cpb_removal_delay_flag)
+                u(length, du_common_cpb_removal_delay_increment_minus1,
+                  0, MAX_UINT_BITS(length));
+
+            for (i = 0; i <= current->num_decoding_units_minus1; i++) {
+                ues(num_nalus_in_du_minus1[i],
+                    0, HEVC_MAX_SLICE_SEGMENTS, 1, i);
+                if (!current->du_common_cpb_removal_delay_flag &&
+                    i < current->num_decoding_units_minus1)
+                    us(length, du_cpb_removal_delay_increment_minus1[i],
+                      0, MAX_UINT_BITS(length), 1, i);
+            }
+        }
+    }
+
+    return 0;
+}
+
+static int FUNC(sei_pan_scan_rect)(CodedBitstreamContext *ctx, RWContext *rw,
+                                   H265RawSEIPanScanRect *current)
+{
+    int err, i;
+
+    HEADER("Pan-Scan Rectangle");
+
+    ue(pan_scan_rect_id, 0, UINT32_MAX - 1);
+    flag(pan_scan_rect_cancel_flag);
+
+    if (!current->pan_scan_rect_cancel_flag) {
+        ue(pan_scan_cnt_minus1, 0, 2);
+
+        for (i = 0; i <= current->pan_scan_cnt_minus1; i++) {
+            ses(pan_scan_rect_left_offset[i],   INT32_MIN + 1, INT32_MAX, 1, i);
+            ses(pan_scan_rect_right_offset[i],  INT32_MIN + 1, INT32_MAX, 1, i);
+            ses(pan_scan_rect_top_offset[i],    INT32_MIN + 1, INT32_MAX, 1, i);
+            ses(pan_scan_rect_bottom_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
+        }
+
+        flag(pan_scan_rect_persistence_flag);
+    }
+
+    return 0;
+}
+
+static int FUNC(sei_user_data_registered)(CodedBitstreamContext *ctx, RWContext *rw,
+                                          H265RawSEIUserDataRegistered *current,
+                                          uint32_t *payload_size)
+{
+    int err, i, j;
+
+    HEADER("User Data Registered ITU-T T.35");
+
+    u(8, itu_t_t35_country_code, 0x00, 0xff);
+    if (current->itu_t_t35_country_code != 0xff)
+        i = 1;
+    else {
+        u(8, itu_t_t35_country_code_extension_byte, 0x00, 0xff);
+        i = 2;
+    }
+
+#ifdef READ
+    if (*payload_size < i) {
+        av_log(ctx->log_ctx, AV_LOG_ERROR,
+               "Invalid SEI user data registered payload.\n");
+        return AVERROR_INVALIDDATA;
+    }
+    current->data_length = *payload_size - i;
+#else
+    *payload_size = i + current->data_length;
+#endif
+
+    allocate(current->data, current->data_length);
+    for (j = 0; j < current->data_length; j++)
+        xu(8, itu_t_t35_payload_byte[i], current->data[j], 0x00, 0xff, 1, i + j);
+
+    return 0;
+}
+
+static int FUNC(sei_user_data_unregistered)(CodedBitstreamContext *ctx, RWContext *rw,
+                                            H265RawSEIUserDataUnregistered *current,
+                                            uint32_t *payload_size)
+{
+    int err, i;
+
+    HEADER("User Data Unregistered");
+
+#ifdef READ
+    if (*payload_size < 16) {
+        av_log(ctx->log_ctx, AV_LOG_ERROR,
+               "Invalid SEI user data unregistered payload.\n");
+        return AVERROR_INVALIDDATA;
+    }
+    current->data_length = *payload_size - 16;
+#else
+    *payload_size = 16 + current->data_length;
+#endif
+
+    for (i = 0; i < 16; i++)
+        us(8, uuid_iso_iec_11578[i], 0x00, 0xff, 1, i);
+
+    allocate(current->data, current->data_length);
+
+    for (i = 0; i < current->data_length; i++)
+        xu(8, user_data_payload_byte[i], current->data[i], 0x00, 0xff, 1, i);
+
+    return 0;
+}
+
+static int FUNC(sei_recovery_point)(CodedBitstreamContext *ctx, RWContext *rw,
+                                    H265RawSEIRecoveryPoint *current)
+{
+    int err;
+
+    HEADER("Recovery Point");
+
+    se(recovery_poc_cnt, -32768, 32767);
+
+    flag(exact_match_flag);
+    flag(broken_link_flag);
+
+    return 0;
+}
+
+static int FUNC(sei_display_orientation)(CodedBitstreamContext *ctx, RWContext *rw,
+                                         H265RawSEIDisplayOrientation *current)
+{
+    int err;
+
+    HEADER("Display Orientation");
+
+    flag(display_orientation_cancel_flag);
+    if (!current->display_orientation_cancel_flag) {
+        flag(hor_flip);
+        flag(ver_flip);
+        u(16, anticlockwise_rotation, 0, 65535);
+        flag(display_orientation_persistence_flag);
+    }
+
+    return 0;
+}
+
+static int FUNC(sei_active_parameter_sets)(CodedBitstreamContext *ctx, RWContext *rw,
+                                           H265RawSEIActiveParameterSets *current)
+{
+    CodedBitstreamH265Context *h265 = ctx->priv_data;
+    const H265RawVPS *vps;
+    int err, i;
+
+    HEADER("Active Parameter Sets");
+
+    u(4, active_video_parameter_set_id, 0, HEVC_MAX_VPS_COUNT);
+    vps = h265->vps[current->active_video_parameter_set_id];
+    if (!vps) {
+        av_log(ctx->log_ctx, AV_LOG_ERROR, "VPS id %d not available for active "
+               "parameter sets.\n", current->active_video_parameter_set_id);
+        return AVERROR_INVALIDDATA;
+    }
+    h265->active_vps = vps;
+
+    flag(self_contained_cvs_flag);
+    flag(no_parameter_set_update_flag);
+
+    ue(num_sps_ids_minus1, 0, HEVC_MAX_SPS_COUNT - 1);
+    for (i = 0; i <= current->num_sps_ids_minus1; i++)
+        ues(active_seq_parameter_set_id[i], 0, HEVC_MAX_SPS_COUNT - 1, 1, i);
+
+    for (i = vps->vps_base_layer_internal_flag;
+         i <= FFMIN(62, vps->vps_max_layers_minus1); i++) {
+        ues(layer_sps_idx[i], 0, current->num_sps_ids_minus1, 1, i);
+
+        if (i == 0)
+            h265->active_sps = h265->sps[current->active_seq_parameter_set_id[current->layer_sps_idx[0]]];
+    }
+
+    return 0;
+}
+
+static int FUNC(sei_decoded_picture_hash)(CodedBitstreamContext *ctx, RWContext *rw,
+                                          H265RawSEIDecodedPictureHash *current)
+{
+    CodedBitstreamH265Context *h265 = ctx->priv_data;
+    const H265RawSPS *sps = h265->active_sps;
+    int err, c, i;
+
+    HEADER("Decoded Picture Hash");
+
+    if (!sps) {
+        av_log(ctx->log_ctx, AV_LOG_ERROR,
+               "No active SPS for decoded picture hash.\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    u(8, hash_type, 0, 2);
+
+    for (c = 0; c < (sps->chroma_format_idc == 0 ? 1 : 3); c++) {
+        if (current->hash_type == 0) {
+            for (i = 0; i < 16; i++)
+                us(8, picture_md5[c][i], 0x00, 0xff, 2, c, i);
+        } else if (current->hash_type == 1) {
+            us(16, picture_crc[c], 0x0000, 0xffff, 1, c);
+        } else if (current->hash_type == 2) {
+            us(32, picture_checksum[c], 0x00000000, 0xffffffff, 1, c);
+        }
+    }
+
+    return 0;
+}
+
+static int FUNC(sei_time_code)(CodedBitstreamContext *ctx, RWContext *rw,
+                               H265RawSEITimeCode *current)
+{
+    int err, i;
+
+    HEADER("Time Code");
+
+    u(2, num_clock_ts, 1, 3);
+
+    for (i = 0; i < current->num_clock_ts; i++) {
+        flags(clock_timestamp_flag[i],   1, i);
+
+        if (current->clock_timestamp_flag[i]) {
+            flags(units_field_based_flag[i], 1, i);
+            us(5, counting_type[i], 0, 6,    1, i);
+            flags(full_timestamp_flag[i],    1, i);
+            flags(discontinuity_flag[i],     1, i);
+            flags(cnt_dropped_flag[i],       1, i);
+
+            us(9, n_frames[i], 0, MAX_UINT_BITS(9), 1, i);
+
+            if (current->full_timestamp_flag[i]) {
+                us(6, seconds_value[i], 0, 59, 1, i);
+                us(6, minutes_value[i], 0, 59, 1, i);
+                us(5, hours_value[i],   0, 23, 1, i);
+            } else {
+                flags(seconds_flag[i], 1, i);
+                if (current->seconds_flag[i]) {
+                    us(6, seconds_value[i], 0, 59, 1, i);
+                    flags(minutes_flag[i], 1, i);
+                    if (current->minutes_flag[i]) {
+                        us(6, minutes_value[i], 0, 59, 1, i);
+                        flags(hours_flag[i], 1, i);
+                        if (current->hours_flag[i])
+                            us(5, hours_value[i], 0, 23, 1, i);
+                    }
+                }
+            }
+
+            us(5, time_offset_length[i], 0, 31, 1, i);
+            if (current->time_offset_length[i] > 0)
+                us(current->time_offset_length[i], time_offset_value[i],
+                   0, MAX_UINT_BITS(current->time_offset_length[i]), 1, i);
+        }
+    }
+
+    return 0;
+}
+
+static int FUNC(sei_mastering_display)(CodedBitstreamContext *ctx, RWContext *rw,
+                                       H265RawSEIMasteringDisplayColourVolume *current)
+{
+    int err, c;
+
+    HEADER("Mastering Display Colour Volume");
+
+    for (c = 0; c < 3; c++) {
+        us(16, display_primaries_x[c], 0, 50000, 1, c);
+        us(16, display_primaries_y[c], 0, 50000, 1, c);
+    }
+
+    u(16, white_point_x, 0, 50000);
+    u(16, white_point_y, 0, 50000);
+
+    u(32, max_display_mastering_luminance,
+      1, MAX_UINT_BITS(32));
+    u(32, min_display_mastering_luminance,
+      0, current->max_display_mastering_luminance - 1);
+
+    return 0;
+}
+
+static int FUNC(sei_content_light_level)(CodedBitstreamContext *ctx, RWContext *rw,
+                                         H265RawSEIContentLightLevelInfo *current)
+{
+    int err;
+
+    HEADER("Content Light Level");
+
+    u(16, max_content_light_level, 0, MAX_UINT_BITS(16));
+    u(16, max_pic_average_light_level, 0, MAX_UINT_BITS(16));
+
+    return 0;
+}
+
+static int FUNC(sei_alternative_transfer_characteristics)(CodedBitstreamContext *ctx,
+                                                          RWContext *rw,
+                                                          H265RawSEIAlternativeTransferCharacteristics *current)
+{
+    int err;
+
+    HEADER("Alternative Transfer Characteristics");
+
+    u(8, preferred_transfer_characteristics, 0, 255);
+
+    return 0;
+}
+
+static int FUNC(sei_payload)(CodedBitstreamContext *ctx, RWContext *rw,
+                             H265RawSEIPayload *current, int prefix)
+{
+    int err, i;
+    int start_position, end_position;
+
+#ifdef READ
+    start_position = get_bits_count(rw);
+#else
+    start_position = put_bits_count(rw);
+#endif
+
+    switch (current->payload_type) {
+#define SEI_TYPE_CHECK_VALID(name, prefix_valid, suffix_valid) do { \
+            if (prefix && !prefix_valid) { \
+                av_log(ctx->log_ctx, AV_LOG_ERROR, "SEI type %s invalid " \
+                       "as prefix SEI!\n", #name); \
+                return AVERROR_INVALIDDATA; \
+            } \
+            if (!prefix && !suffix_valid) { \
+                av_log(ctx->log_ctx, AV_LOG_ERROR, "SEI type %s invalid " \
+                       "as suffix SEI!\n", #name); \
+                return AVERROR_INVALIDDATA; \
+            } \
+        } while (0)
+#define SEI_TYPE_N(type, prefix_valid, suffix_valid, name) \
+    case HEVC_SEI_TYPE_ ## type: \
+        SEI_TYPE_CHECK_VALID(name, prefix_valid, suffix_valid); \
+        CHECK(FUNC(sei_ ## name)(ctx, rw, &current->payload.name)); \
+        break
+#define SEI_TYPE_S(type, prefix_valid, suffix_valid, name) \
+    case HEVC_SEI_TYPE_ ## type: \
+        SEI_TYPE_CHECK_VALID(name, prefix_valid, suffix_valid); \
+        CHECK(FUNC(sei_ ## name)(ctx, rw, &current->payload.name, \
+                                 &current->payload_size)); \
+        break
+
+        SEI_TYPE_S(BUFFERING_PERIOD,         1, 0, buffering_period);
+        SEI_TYPE_N(PICTURE_TIMING,           1, 0, pic_timing);
+        SEI_TYPE_N(PAN_SCAN_RECT,            1, 0, pan_scan_rect);
+        SEI_TYPE_S(USER_DATA_REGISTERED_ITU_T_T35,
+                                             1, 1, user_data_registered);
+        SEI_TYPE_S(USER_DATA_UNREGISTERED,   1, 1, user_data_unregistered);
+        SEI_TYPE_N(RECOVERY_POINT,           1, 0, recovery_point);
+        SEI_TYPE_N(DISPLAY_ORIENTATION,      1, 0, display_orientation);
+        SEI_TYPE_N(ACTIVE_PARAMETER_SETS,    1, 0, active_parameter_sets);
+        SEI_TYPE_N(DECODED_PICTURE_HASH,     0, 1, decoded_picture_hash);
+        SEI_TYPE_N(TIME_CODE,                1, 0, time_code);
+        SEI_TYPE_N(MASTERING_DISPLAY_INFO,   1, 0, mastering_display);
+        SEI_TYPE_N(CONTENT_LIGHT_LEVEL_INFO, 1, 0, content_light_level);
+        SEI_TYPE_N(ALTERNATIVE_TRANSFER_CHARACTERISTICS,
+                                             1, 0, alternative_transfer_characteristics);
+
+#undef SEI_TYPE
+    default:
+        {
+#ifdef READ
+            current->payload.other.data_length = current->payload_size;
+#endif
+            allocate(current->payload.other.data, current->payload.other.data_length);
+
+            for (i = 0; i < current->payload_size; i++)
+                xu(8, payload_byte[i], current->payload.other.data[i], 0, 255,
+                   1, i);
+        }
+    }
+
+    if (byte_alignment(rw)) {
+        fixed(1, bit_equal_to_one, 1);
+        while (byte_alignment(rw))
+            fixed(1, bit_equal_to_zero, 0);
+    }
+
+#ifdef READ
+    end_position = get_bits_count(rw);
+    if (end_position < start_position + 8 * current->payload_size) {
+        av_log(ctx->log_ctx, AV_LOG_ERROR, "Incorrect SEI payload length: "
+               "header %"PRIu32" bits, actually %d bits.\n",
+               8 * current->payload_size,
+               end_position - start_position);
+        return AVERROR_INVALIDDATA;
+    }
+#else
+    end_position = put_bits_count(rw);
+    current->payload_size = (end_position - start_position) >> 3;
+#endif
+
+    return 0;
+}
+
+static int FUNC(sei)(CodedBitstreamContext *ctx, RWContext *rw,
+                     H265RawSEI *current, int prefix)
+{
+    int err, k;
+
+    if (prefix)
+        HEADER("Prefix Supplemental Enhancement Information");
+    else
+        HEADER("Suffix Supplemental Enhancement Information");
+
+    CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
+                                prefix ? HEVC_NAL_SEI_PREFIX
+                                       : HEVC_NAL_SEI_SUFFIX));
+
+#ifdef READ
+    for (k = 0; k < H265_MAX_SEI_PAYLOADS; k++) {
+        uint32_t payload_type = 0;
+        uint32_t payload_size = 0;
+        uint32_t tmp;
+
+        while (show_bits(rw, 8) == 0xff) {
+            fixed(8, ff_byte, 0xff);
+            payload_type += 255;
+        }
+        xu(8, last_payload_type_byte, tmp, 0, 254, 0);
+        payload_type += tmp;
+
+        while (show_bits(rw, 8) == 0xff) {
+            fixed(8, ff_byte, 0xff);
+            payload_size += 255;
+        }
+        xu(8, last_payload_size_byte, tmp, 0, 254, 0);
+        payload_size += tmp;
+
+        current->payload[k].payload_type = payload_type;
+        current->payload[k].payload_size = payload_size;
+
+        CHECK(FUNC(sei_payload)(ctx, rw, &current->payload[k], prefix));
+
+        if (!cbs_h2645_read_more_rbsp_data(rw))
+            break;
+    }
+    if (k >= H265_MAX_SEI_PAYLOADS) {
+        av_log(ctx->log_ctx, AV_LOG_ERROR, "Too many payloads in "
+               "SEI message: found %d.\n", k);
+        return AVERROR_INVALIDDATA;
+    }
+    current->payload_count = k + 1;
+#else
+    for (k = 0; k < current->payload_count; k++) {
+        PutBitContext start_state;
+        uint32_t tmp;
+        int need_size, i;
+
+        // Somewhat clumsy: we write the payload twice when
+        // we don't know the size in advance.  This will mess
+        // with trace output, but is otherwise harmless.
+        start_state = *rw;
+        need_size = !current->payload[k].payload_size;
+        for (i = 0; i < 1 + need_size; i++) {
+            *rw = start_state;
+
+            tmp = current->payload[k].payload_type;
+            while (tmp >= 255) {
+                fixed(8, ff_byte, 0xff);
+                tmp -= 255;
+            }
+            xu(8, last_payload_type_byte, tmp, 0, 254, 0);
+
+            tmp = current->payload[k].payload_size;
+            while (tmp >= 255) {
+                fixed(8, ff_byte, 0xff);
+                tmp -= 255;
+            }
+            xu(8, last_payload_size_byte, tmp, 0, 254, 0);
+
+            CHECK(FUNC(sei_payload)(ctx, rw, &current->payload[k], prefix));
+        }
+    }
+#endif
+
+    CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
+
+    return 0;
+}