[FFmpeg-devel] [PATCH v2 03/13] lavc/hevc_ps: Add SPS/PPS parse support for HEVC extension syntax
Xiang, Haihao
haihao.xiang at intel.com
Tue Jan 3 08:20:27 EET 2023
On Ma, 2022-12-05 at 14:09 +0800, Fei Wang wrote:
> From: Linjie Fu <linjie.fu at intel.com>
>
> 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 at gmail.com>
> Signed-off-by: Haihao Xiang <haihao.xiang at intel.com>
> Signed-off-by: Fei Wang <fei.w.wang at intel.com>
> ---
> libavcodec/hevc.h | 3 +
> libavcodec/hevc_ps.c | 288 +++++++++++++++++++++++++++++++++++++++++--
> libavcodec/hevc_ps.h | 69 +++++++++++
> 3 files changed, 349 insertions(+), 11 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 ad92b6bcbc..3181962918 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 +1320,162 @@ 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;
> + int i, j;
> +
> + 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 (i = 0; i <= pps_depth_layers_minus1; i++) {
Please use the same coding style,
for (int i = 0; ......)
> + 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 (j = 0; j <= ((1 << (pps-
> >pps_bit_depth_for_depth_layers_minus8 + 8)) - 1); j++)
for (int j = 0; ......)
Thanks
Haihao
> + 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 +1489,7 @@ 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 +1513,47 @@ 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 +1906,31 @@ 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
> + 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 (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 +1938,8 @@ 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
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