lavc/hevc_ps: Add SPS/PPS parse support for HEVC extension syntax

1. Add extension syntax according to 7.3.2.2.3/7.3.2.3.3 in T-REC-H.265-201911.
2. Keep using parsed PPS when bitstream overread for compatibility. For
example, the clip PS_A_VIDYO_3.bit in FATE test has incomplete extension
syntax which will be overread and un-decodable if without this change.
3. Format brace in pps_range_extensions().

Signed-off-by: Linjie Fu <linjie.justin.fu@gmail.com>
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
Signed-off-by: Fei Wang <fei.w.wang@intel.com>

3 files changed, 349 insertions, 12 deletions

diff --git a/libavcodec/hevc.h b/libavcodec/hevc.h
index 1804755327..6b454a75c1 100644
--- a/libavcodec/hevc.h
+++ b/libavcodec/hevc.h
@@ -154,6 +154,9 @@ enum {
     // get near that, though, so set a lower limit here with the maximum
     // possible value for 4K video (at most 135 16x16 Ctb rows).
     HEVC_MAX_ENTRY_POINT_OFFSETS = HEVC_MAX_TILE_COLUMNS * 135,
+
+    // A.3.7: Screen content coding extensions
+    HEVC_MAX_PALETTE_PREDICTOR_SIZE = 128,
 };
 
 
diff --git a/libavcodec/hevc_ps.c b/libavcodec/hevc_ps.c
index 4aa5b76d5f..348e4d8de2 100644
--- a/libavcodec/hevc_ps.c
+++ b/libavcodec/hevc_ps.c
@@ -853,7 +853,7 @@ int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
     HEVCWindow *ow;
     int ret = 0;
     int log2_diff_max_min_transform_block_size;
-    int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
+    int bit_depth_chroma, start, vui_present, sublayer_ordering_info, num_comps;
     int i;
 
     // Coded parameters
@@ -1074,8 +1074,12 @@ int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
         decode_vui(gb, avctx, apply_defdispwin, sps);
 
     if (get_bits1(gb)) { // sps_extension_flag
-        sps->sps_range_extension_flag = get_bits1(gb);
-        skip_bits(gb, 7); //sps_extension_7bits = get_bits(gb, 7);
+        sps->sps_range_extension_flag      = get_bits1(gb);
+        sps->sps_multilayer_extension_flag = get_bits1(gb);
+        sps->sps_3d_extension_flag         = get_bits1(gb);
+        sps->sps_scc_extension_flag        = get_bits1(gb);
+        skip_bits(gb, 4); // sps_extension_4bits
+
         if (sps->sps_range_extension_flag) {
             sps->transform_skip_rotation_enabled_flag = get_bits1(gb);
             sps->transform_skip_context_enabled_flag  = get_bits1(gb);
@@ -1101,6 +1105,57 @@ int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
                 av_log(avctx, AV_LOG_WARNING,
                    "cabac_bypass_alignment_enabled_flag not yet implemented\n");
         }
+
+        if (sps->sps_multilayer_extension_flag) {
+            skip_bits1(gb); // inter_view_mv_vert_constraint_flag
+            av_log(avctx, AV_LOG_WARNING,
+                   "sps_multilayer_extension_flag not yet implemented\n");
+        }
+
+        if (sps->sps_3d_extension_flag) {
+            for (i = 0; i <= 1; i++) {
+                skip_bits1(gb); // iv_di_mc_enabled_flag
+                skip_bits1(gb); // iv_mv_scal_enabled_flag
+                if (i == 0) {
+                    get_ue_golomb_long(gb); // log2_ivmc_sub_pb_size_minus3
+                    skip_bits1(gb); // iv_res_pred_enabled_flag
+                    skip_bits1(gb); // depth_ref_enabled_flag
+                    skip_bits1(gb); // vsp_mc_enabled_flag
+                    skip_bits1(gb); // dbbp_enabled_flag
+                } else {
+                    skip_bits1(gb); // tex_mc_enabled_flag
+                    get_ue_golomb_long(gb); // log2_ivmc_sub_pb_size_minus3
+                    skip_bits1(gb); // intra_contour_enabled_flag
+                    skip_bits1(gb); // intra_dc_only_wedge_enabled_flag
+                    skip_bits1(gb); // cqt_cu_part_pred_enabled_flag
+                    skip_bits1(gb); // inter_dc_only_enabled_flag
+                    skip_bits1(gb); // skip_intra_enabled_flag
+                }
+            }
+            av_log(avctx, AV_LOG_WARNING,
+                   "sps_3d_extension_flag not yet implemented\n");
+        }
+
+        if (sps->sps_scc_extension_flag) {
+            sps->sps_curr_pic_ref_enabled_flag = get_bits1(gb);
+            sps->palette_mode_enabled_flag     = get_bits1(gb);
+            if (sps->palette_mode_enabled_flag) {
+                sps->palette_max_size = get_ue_golomb_long(gb);
+                sps->delta_palette_max_predictor_size = get_ue_golomb_long(gb);
+                sps->sps_palette_predictor_initializers_present_flag = get_bits1(gb);
+
+                if (sps->sps_palette_predictor_initializers_present_flag) {
+                    sps->sps_num_palette_predictor_initializers_minus1 = get_ue_golomb_long(gb);
+                    num_comps = !sps->chroma_format_idc ? 1 : 3;
+                    for (int comp = 0; comp < num_comps; comp++)
+                        for (i = 0; i <= sps->sps_num_palette_predictor_initializers_minus1; i++)
+                            sps->sps_palette_predictor_initializer[comp][i] =
+                                    get_bits(gb, !comp ? sps->bit_depth : sps->bit_depth_chroma);
+                }
+            }
+            sps->motion_vector_resolution_control_idc   = get_bits(gb, 2);
+            sps->intra_boundary_filtering_disabled_flag = get_bits1(gb);
+        }
     }
     if (apply_defdispwin) {
         sps->output_window.left_offset   += sps->vui.def_disp_win.left_offset;
@@ -1265,10 +1320,161 @@ static void hevc_pps_free(void *opaque, uint8_t *data)
     av_freep(&pps);
 }
 
-static int pps_range_extensions(GetBitContext *gb, AVCodecContext *avctx,
-                                HEVCPPS *pps, HEVCSPS *sps) {
-    int i;
+static void colour_mapping_octants(GetBitContext *gb, HEVCPPS *pps, int inp_depth,
+                                   int idx_y, int idx_cb, int idx_cr, int inp_length)
+{
+    unsigned int split_octant_flag, part_num_y, coded_res_flag, res_coeff_q, res_coeff_r;
+    int bit_depth_cm_input_y, bit_depth_cm_output_y, cm_res_bits;
+
+    part_num_y = 1 << pps->cm_y_part_num_log2;
+
+    split_octant_flag = inp_depth < pps->cm_octant_depth ? get_bits1(gb) : 0;
+
+    if (split_octant_flag)
+        for (int k = 0; k < 2; k++)
+            for (int m = 0; m < 2; m++)
+                for (int n = 0; n < 2; n++)
+                    colour_mapping_octants(gb, pps, inp_depth + 1,
+                                           idx_y + part_num_y * k * inp_length / 2,
+                                           idx_cb + m * inp_length / 2,
+                                           idx_cr + n * inp_length / 2,
+                                           inp_length / 2);
+    else
+        for (int i = 0; i < part_num_y; i++) {
+            for (int j = 0; j < 4; j++) {
+                coded_res_flag = get_bits1(gb);
+                if (coded_res_flag)
+                    for (int c = 0; c < 3; c++) {
+                        res_coeff_q = get_ue_golomb_long(gb);
+                        bit_depth_cm_input_y = 8 + pps->luma_bit_depth_cm_input_minus8;
+                        bit_depth_cm_output_y = 8 + pps->luma_bit_depth_cm_output_minus8;
+                        cm_res_bits = FFMAX(0, 10 + bit_depth_cm_input_y - bit_depth_cm_output_y -
+                                            pps->cm_res_quant_bits - (pps->cm_delta_flc_bits_minus1 + 1));
+                        res_coeff_r = cm_res_bits ? get_bits(gb, cm_res_bits) : 0;
+                        if (res_coeff_q || res_coeff_r)
+                            skip_bits1(gb);
+                    }
+            }
+        }
+}
 
+static void colour_mapping_table(GetBitContext *gb, HEVCPPS *pps)
+{
+    pps->num_cm_ref_layers_minus1 = get_ue_golomb_long(gb);
+    for (int i = 0; i <= pps->num_cm_ref_layers_minus1; i++)
+        pps->cm_ref_layer_id[i] = get_bits(gb, 6);
+
+    pps->cm_octant_depth = get_bits(gb, 2);
+    pps->cm_y_part_num_log2 = get_bits(gb, 2);
+
+    pps->luma_bit_depth_cm_input_minus8    = get_ue_golomb_long(gb);
+    pps->chroma_bit_depth_cm_input_minus8  = get_ue_golomb_long(gb);
+    pps->luma_bit_depth_cm_output_minus8   = get_ue_golomb_long(gb);
+    pps->chroma_bit_depth_cm_output_minus8 = get_ue_golomb_long(gb);
+
+    pps->cm_res_quant_bits = get_bits(gb, 2);
+    pps->cm_delta_flc_bits_minus1 = get_bits(gb, 2);
+
+    if (pps->cm_octant_depth == 1) {
+        pps->cm_adapt_threshold_u_delta = get_se_golomb_long(gb);
+        pps->cm_adapt_threshold_v_delta = get_se_golomb_long(gb);
+    }
+
+    colour_mapping_octants(gb, pps, 0, 0, 0, 0, 1 << pps->cm_octant_depth);
+}
+
+static int pps_multilayer_extension(GetBitContext *gb, AVCodecContext *avctx,
+                                    HEVCPPS *pps, HEVCSPS *sps)
+{
+    pps->poc_reset_info_present_flag = get_bits1(gb);
+    pps->pps_infer_scaling_list_flag = get_bits1(gb);
+    if (pps->pps_infer_scaling_list_flag)
+        pps->pps_scaling_list_ref_layer_id = get_bits(gb, 6);
+
+    pps->num_ref_loc_offsets = get_ue_golomb_long(gb);
+    for (int i = 0; i < pps->num_ref_loc_offsets; i++) {
+        pps->ref_loc_offset_layer_id[i] = get_bits(gb, 6);
+        pps->scaled_ref_layer_offset_present_flag[i] = get_bits1(gb);
+        if (pps->scaled_ref_layer_offset_present_flag[i]) {
+            pps->scaled_ref_layer_left_offset[pps->ref_loc_offset_layer_id[i]]   = get_se_golomb_long(gb);
+            pps->scaled_ref_layer_top_offset[pps->ref_loc_offset_layer_id[i]]    = get_se_golomb_long(gb);
+            pps->scaled_ref_layer_right_offset[pps->ref_loc_offset_layer_id[i]]  = get_se_golomb_long(gb);
+            pps->scaled_ref_layer_bottom_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
+        }
+
+        pps->ref_region_offset_present_flag[i] = get_bits1(gb);
+        if (pps->ref_region_offset_present_flag[i]) {
+            pps->ref_region_left_offset[pps->ref_loc_offset_layer_id[i]]   = get_se_golomb_long(gb);
+            pps->ref_region_top_offset[pps->ref_loc_offset_layer_id[i]]    = get_se_golomb_long(gb);
+            pps->ref_region_right_offset[pps->ref_loc_offset_layer_id[i]]  = get_se_golomb_long(gb);
+            pps->ref_region_bottom_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
+        }
+
+        pps->resample_phase_set_present_flag[i] = get_bits1(gb);
+        if (pps->resample_phase_set_present_flag[i]) {
+            pps->phase_hor_luma[pps->ref_loc_offset_layer_id[i]]         = get_ue_golomb_long(gb);
+            pps->phase_ver_luma[pps->ref_loc_offset_layer_id[i]]         = get_ue_golomb_long(gb);
+            pps->phase_hor_chroma_plus8[pps->ref_loc_offset_layer_id[i]] = get_ue_golomb_long(gb);
+            pps->phase_ver_chroma_plus8[pps->ref_loc_offset_layer_id[i]] = get_ue_golomb_long(gb);
+        }
+    }
+
+    pps->colour_mapping_enabled_flag = get_bits1(gb);
+    if (pps->colour_mapping_enabled_flag)
+        colour_mapping_table(gb, pps);
+
+    return 0;
+}
+
+static void delta_dlt(GetBitContext *gb, HEVCPPS *pps)
+{
+    unsigned int num_val_delta_dlt, max_diff = 0;
+    int min_diff_minus1 = -1;
+    unsigned int len;
+
+    num_val_delta_dlt = get_bits(gb, pps->pps_bit_depth_for_depth_layers_minus8 + 8);
+    if (num_val_delta_dlt) {
+        if (num_val_delta_dlt > 1)
+            max_diff = get_bits(gb, pps->pps_bit_depth_for_depth_layers_minus8 + 8);
+        if (num_val_delta_dlt > 2 && max_diff) {
+            len = av_log2(max_diff) + 1;
+            min_diff_minus1 = get_bits(gb, len);
+        }
+        if (max_diff > (min_diff_minus1 + 1))
+            for (int k = 1; k < num_val_delta_dlt; k++) {
+                len = av_log2(max_diff - (min_diff_minus1 + 1)) + 1;
+                skip_bits(gb, len); // delta_val_diff_minus_min
+            }
+    }
+}
+
+static int pps_3d_extension(GetBitContext *gb, AVCodecContext *avctx,
+                            HEVCPPS *pps, HEVCSPS *sps)
+{
+    unsigned int pps_depth_layers_minus1;
+
+    if (get_bits1(gb)) { // dlts_present_flag
+        pps_depth_layers_minus1 = get_bits(gb, 6);
+        pps->pps_bit_depth_for_depth_layers_minus8 = get_bits(gb, 4);
+        for (int i = 0; i <= pps_depth_layers_minus1; i++) {
+            if (get_bits1(gb)) { // dlt_flag[i]
+                if (!get_bits1(gb)) { // dlt_pred_flag[i]
+                    if (get_bits1(gb)) { // dlt_val_flags_present_flag[i]
+                        for (int j = 0; j <= ((1 << (pps->pps_bit_depth_for_depth_layers_minus8 + 8)) - 1); j++)
+                            skip_bits1(gb); // dlt_value_flag[i][j]
+                    } else
+                        delta_dlt(gb, pps);
+                }
+            }
+        }
+    }
+
+    return 0;
+}
+
+static int pps_range_extensions(GetBitContext *gb, AVCodecContext *avctx,
+                                HEVCPPS *pps, HEVCSPS *sps)
+{
     if (pps->transform_skip_enabled_flag) {
         pps->log2_max_transform_skip_block_size = get_ue_golomb_long(gb) + 2;
     }
@@ -1282,7 +1488,7 @@ static int pps_range_extensions(GetBitContext *gb, AVCodecContext *avctx,
                    "chroma_qp_offset_list_len_minus1 shall be in the range [0, 5].\n");
             return AVERROR_INVALIDDATA;
         }
-        for (i = 0; i <= pps->chroma_qp_offset_list_len_minus1; i++) {
+        for (int i = 0; i <= pps->chroma_qp_offset_list_len_minus1; i++) {
             pps->cb_qp_offset_list[i] = get_se_golomb_long(gb);
             if (pps->cb_qp_offset_list[i]) {
                 av_log(avctx, AV_LOG_WARNING,
@@ -1306,6 +1512,47 @@ static int pps_range_extensions(GetBitContext *gb, AVCodecContext *avctx,
     return(0);
 }
 
+static int pps_scc_extension(GetBitContext *gb, AVCodecContext *avctx,
+                             HEVCPPS *pps, HEVCSPS *sps)
+{
+    int num_comps, ret;
+
+    pps->pps_curr_pic_ref_enabled_flag = get_bits1(gb);
+    if (pps->residual_adaptive_colour_transform_enabled_flag = get_bits1(gb)) {
+        pps->pps_slice_act_qp_offsets_present_flag = get_bits1(gb);
+        pps->pps_act_y_qp_offset  = get_se_golomb_long(gb) - 5;
+        pps->pps_act_cb_qp_offset = get_se_golomb_long(gb) - 5;
+        pps->pps_act_cr_qp_offset = get_se_golomb_long(gb) - 3;
+
+#define CHECK_QP_OFFSET(name) (pps->pps_act_ ## name ## _qp_offset <= -12 || \
+                               pps->pps_act_ ## name ## _qp_offset >= 12)
+        ret = CHECK_QP_OFFSET(y) || CHECK_QP_OFFSET(cb) || CHECK_QP_OFFSET(cr);
+#undef CHECK_QP_OFFSET
+        if (ret) {
+            av_log(avctx, AV_LOG_ERROR,
+                   "PpsActQpOffsetY/Cb/Cr shall be in the range of [-12, 12].\n");
+            return AVERROR_INVALIDDATA;
+        }
+    }
+
+    if (pps->pps_palette_predictor_initializers_present_flag = get_bits1(gb)) {
+        if ((pps->pps_num_palette_predictor_initializers = get_ue_golomb_long(gb)) > 0) {
+            pps->monochrome_palette_flag = get_bits1(gb);
+            pps->luma_bit_depth_entry_minus8 = get_ue_golomb_long(gb);
+            if (!pps->monochrome_palette_flag)
+                pps->chroma_bit_depth_entry_minus8 = get_ue_golomb_long(gb);
+            num_comps = pps->monochrome_palette_flag ? 1 : 3;
+            for (int comp = 0; comp < num_comps; comp++)
+                for (int i = 0; i < pps->pps_num_palette_predictor_initializers; i++)
+                    pps->pps_palette_predictor_initializer[comp][i] =
+                        get_bits(gb, 8 + (!comp ? pps->luma_bit_depth_entry_minus8 :
+                                          pps->chroma_bit_depth_entry_minus8));
+        }
+    }
+
+    return 0;
+}
+
 static inline int setup_pps(AVCodecContext *avctx, GetBitContext *gb,
                             HEVCPPS *pps, HEVCSPS *sps)
 {
@@ -1658,12 +1905,31 @@ int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx,
     pps->slice_header_extension_present_flag = get_bits1(gb);
 
     if (get_bits1(gb)) { // pps_extension_present_flag
-        pps->pps_range_extensions_flag = get_bits1(gb);
-        skip_bits(gb, 7); // pps_extension_7bits
-        if (sps->ptl.general_ptl.profile_idc == FF_PROFILE_HEVC_REXT && pps->pps_range_extensions_flag) {
+        pps->pps_range_extensions_flag     = get_bits1(gb);
+        pps->pps_multilayer_extension_flag = get_bits1(gb);
+        pps->pps_3d_extension_flag         = get_bits1(gb);
+        pps->pps_scc_extension_flag        = get_bits1(gb);
+        skip_bits(gb, 4); // pps_extension_4bits
+
+        if (sps->ptl.general_ptl.profile_idc >= FF_PROFILE_HEVC_REXT && pps->pps_range_extensions_flag) {
             if ((ret = pps_range_extensions(gb, avctx, pps, sps)) < 0)
                 goto err;
         }
+
+        if (pps->pps_multilayer_extension_flag) {
+            if ((ret = pps_multilayer_extension(gb, avctx, pps, sps)) < 0)
+                goto err;
+        }
+
+        if (pps->pps_3d_extension_flag) {
+            if ((ret = pps_3d_extension(gb, avctx, pps, sps)) < 0)
+                goto err;
+        }
+
+        if (pps->pps_scc_extension_flag) {
+            if ((ret = pps_scc_extension(gb, avctx, pps, sps)) < 0)
+                goto err;
+        }
     }
 
     ret = setup_pps(avctx, gb, pps, sps);
@@ -1671,9 +1937,8 @@ int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx,
         goto err;
 
     if (get_bits_left(gb) < 0) {
-        av_log(avctx, AV_LOG_ERROR,
+        av_log(avctx, AV_LOG_WARNING,
                "Overread PPS by %d bits\n", -get_bits_left(gb));
-        goto err;
     }
 
     remove_pps(ps, pps_id);
diff --git a/libavcodec/hevc_ps.h b/libavcodec/hevc_ps.h
index 18894cfed1..1f704108e3 100644
--- a/libavcodec/hevc_ps.h
+++ b/libavcodec/hevc_ps.h
@@ -210,6 +210,20 @@ typedef struct HEVCSPS {
     int persistent_rice_adaptation_enabled_flag;
     int cabac_bypass_alignment_enabled_flag;
 
+    int sps_multilayer_extension_flag;
+    int sps_3d_extension_flag;
+
+    int sps_scc_extension_flag;
+    int sps_curr_pic_ref_enabled_flag;
+    int palette_mode_enabled_flag;
+    int palette_max_size;
+    int delta_palette_max_predictor_size;
+    int sps_palette_predictor_initializers_present_flag;
+    int sps_num_palette_predictor_initializers_minus1;
+    int sps_palette_predictor_initializer[3][HEVC_MAX_PALETTE_PREDICTOR_SIZE];
+    int motion_vector_resolution_control_idc;
+    int intra_boundary_filtering_disabled_flag;
+
     ///< coded frame dimension in various units
     int width;
     int height;
@@ -284,6 +298,9 @@ typedef struct HEVCPPS {
     uint8_t slice_header_extension_present_flag;
     uint8_t log2_max_transform_skip_block_size;
     uint8_t pps_range_extensions_flag;
+    uint8_t pps_multilayer_extension_flag;
+    uint8_t pps_3d_extension_flag;
+    uint8_t pps_scc_extension_flag;
     uint8_t cross_component_prediction_enabled_flag;
     uint8_t chroma_qp_offset_list_enabled_flag;
     uint8_t diff_cu_chroma_qp_offset_depth;
@@ -293,6 +310,58 @@ typedef struct HEVCPPS {
     uint8_t log2_sao_offset_scale_luma;
     uint8_t log2_sao_offset_scale_chroma;
 
+    // Multilayer extension parameters
+    uint8_t poc_reset_info_present_flag;
+    uint8_t pps_infer_scaling_list_flag;
+    uint8_t pps_scaling_list_ref_layer_id;
+    uint16_t num_ref_loc_offsets;
+    uint8_t ref_loc_offset_layer_id[64];
+    uint8_t scaled_ref_layer_offset_present_flag[64];
+    int8_t scaled_ref_layer_left_offset[64];
+    int8_t scaled_ref_layer_top_offset[64];
+    int8_t scaled_ref_layer_right_offset[64];
+    int8_t scaled_ref_layer_bottom_offset[64];
+    uint8_t ref_region_offset_present_flag[64];
+    int8_t ref_region_left_offset[64];
+    int8_t ref_region_top_offset[64];
+    int8_t ref_region_right_offset[64];
+    int8_t ref_region_bottom_offset[64];
+    uint8_t resample_phase_set_present_flag[64];
+    uint16_t phase_hor_luma[64];
+    uint16_t phase_ver_luma[64];
+    uint16_t phase_hor_chroma_plus8[64];
+    uint16_t phase_ver_chroma_plus8[64];
+    uint8_t colour_mapping_enabled_flag;
+    uint16_t num_cm_ref_layers_minus1;
+    uint8_t cm_ref_layer_id[63];
+    uint8_t cm_octant_depth;
+    uint8_t cm_y_part_num_log2;
+    uint16_t luma_bit_depth_cm_input_minus8;
+    uint16_t chroma_bit_depth_cm_input_minus8;
+    uint16_t luma_bit_depth_cm_output_minus8;
+    uint16_t chroma_bit_depth_cm_output_minus8;
+    uint8_t cm_res_quant_bits;
+    uint8_t cm_delta_flc_bits_minus1;
+    int8_t cm_adapt_threshold_u_delta;
+    int8_t cm_adapt_threshold_v_delta;
+
+    // 3D extension parameters
+    uint8_t pps_bit_depth_for_depth_layers_minus8;
+
+    // SCC extension parameters
+    uint8_t pps_curr_pic_ref_enabled_flag;
+    uint8_t residual_adaptive_colour_transform_enabled_flag;
+    uint8_t pps_slice_act_qp_offsets_present_flag;
+    int8_t  pps_act_y_qp_offset;  // _plus5
+    int8_t  pps_act_cb_qp_offset; // _plus5
+    int8_t  pps_act_cr_qp_offset; // _plus3
+    uint8_t pps_palette_predictor_initializers_present_flag;
+    uint8_t pps_num_palette_predictor_initializers;
+    uint8_t monochrome_palette_flag;
+    uint8_t luma_bit_depth_entry_minus8;
+    uint8_t chroma_bit_depth_entry_minus8;
+    uint8_t pps_palette_predictor_initializer[3][HEVC_MAX_PALETTE_PREDICTOR_SIZE];
+
     // Inferred parameters
     unsigned int *column_width;  ///< ColumnWidth
     unsigned int *row_height;    ///< RowHeight