File: //snap/chromium/3248/usr/include/va/va_dec_vvc.h
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*
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/**
* \file va_dec_vvc.h
* \brief The VVC decoding API
*
* This file contains the \ref api_dec_vvc "VVC decoding API".
*/
#ifndef VA_DEC_VVC_H
#define VA_DEC_VVC_H
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* \defgroup api_dec_vvc VVC decoding API
*
* This VVC decoding API supports Main 10 profile and Multilayer Main 10 profile.
* And it supports only long slice format.
*
* @{
*/
/**
* \brief Weighted Prediction Parameters.
*/
typedef struct _VAWeightedPredInfo {
/** \brief Weighted Prediction parameters.
* All the parameters except reserved bytes are VVC syntax.
*/
uint8_t luma_log2_weight_denom;
int8_t delta_chroma_log2_weight_denom;
uint8_t num_l0_weights;
uint8_t luma_weight_l0_flag[15];
uint8_t chroma_weight_l0_flag[15];
int8_t delta_luma_weight_l0[15];
int8_t luma_offset_l0[15];
int8_t delta_chroma_weight_l0[15][2];
int16_t delta_chroma_offset_l0[15][2];
uint8_t num_l1_weights;
uint8_t luma_weight_l1_flag[15];
uint8_t chroma_weight_l1_flag[15];
int8_t delta_luma_weight_l1[15];
int8_t luma_offset_l1[15];
int8_t delta_chroma_weight_l1[15][2];
int16_t delta_chroma_offset_l1[15][2];
/** \brief Reserved for future use, must be zero */
uint16_t reserved16b;
uint32_t reserved32b;
} VAWeightedPredInfo;
/**
* \brief VVC Decoding Picture Parameter Buffer Structure
*
* This structure conveys picture level parameters and should be sent once
* per frame.
*
* Host decoder is required to send in a buffer of VAPictureParameterBufferVVC
* as the first va buffer for each frame.
*
*/
typedef struct _VAPictureParameterBufferVVC {
/** \brief buffer description of decoded current picture
*/
VAPictureVVC CurrPic;
/** \brief buffer description of reference frames in DPB */
VAPictureVVC ReferenceFrames[15];
/** \brief picture width, shall be integer multiple of Max(8, MinCbSizeY). */
uint16_t pps_pic_width_in_luma_samples;
/** \brief picture height, shall be integer multiple of Max(8, MinCbSizeY). */
uint16_t pps_pic_height_in_luma_samples;
/** \brief sequence level parameters.
* All the parameters except reserved bytes are VVC syntax or spec variables.
*/
uint16_t sps_num_subpics_minus1;
uint8_t sps_chroma_format_idc;
uint8_t sps_bitdepth_minus8;
uint8_t sps_log2_ctu_size_minus5;
uint8_t sps_log2_min_luma_coding_block_size_minus2;
uint8_t sps_log2_transform_skip_max_size_minus2;
/** \brief chroma QP mapping table.
* ChromaQpTable[][] corresponds to VVC spec variable with the same name.
* It is derived according to formula (57) in VVC spec section 7.4.3.4.
*/
int8_t ChromaQpTable[3][111];
uint8_t sps_six_minus_max_num_merge_cand;
uint8_t sps_five_minus_max_num_subblock_merge_cand;
uint8_t sps_max_num_merge_cand_minus_max_num_gpm_cand;
uint8_t sps_log2_parallel_merge_level_minus2;
uint8_t sps_min_qp_prime_ts;
uint8_t sps_six_minus_max_num_ibc_merge_cand;
uint8_t sps_num_ladf_intervals_minus2;
int8_t sps_ladf_lowest_interval_qp_offset;
int8_t sps_ladf_qp_offset[4];
uint16_t sps_ladf_delta_threshold_minus1[4];
/** \brief Reserved for future use, must be zero */
uint32_t reserved32b01[VA_PADDING_LOW - 2];
union {
struct {
uint64_t sps_subpic_info_present_flag : 1;
uint64_t sps_independent_subpics_flag : 1;
uint64_t sps_subpic_same_size_flag : 1;
uint64_t sps_entropy_coding_sync_enabled_flag : 1;
uint64_t sps_qtbtt_dual_tree_intra_flag : 1;
uint64_t sps_max_luma_transform_size_64_flag : 1;
uint64_t sps_transform_skip_enabled_flag : 1;
uint64_t sps_bdpcm_enabled_flag : 1;
uint64_t sps_mts_enabled_flag : 1;
uint64_t sps_explicit_mts_intra_enabled_flag : 1;
uint64_t sps_explicit_mts_inter_enabled_flag : 1;
uint64_t sps_lfnst_enabled_flag : 1;
uint64_t sps_joint_cbcr_enabled_flag : 1;
uint64_t sps_same_qp_table_for_chroma_flag : 1;
uint64_t sps_sao_enabled_flag : 1;
uint64_t sps_alf_enabled_flag : 1;
uint64_t sps_ccalf_enabled_flag : 1;
uint64_t sps_lmcs_enabled_flag : 1;
uint64_t sps_sbtmvp_enabled_flag : 1;
uint64_t sps_amvr_enabled_flag : 1;
uint64_t sps_smvd_enabled_flag : 1;
uint64_t sps_mmvd_enabled_flag : 1;
uint64_t sps_sbt_enabled_flag : 1;
uint64_t sps_affine_enabled_flag : 1;
uint64_t sps_6param_affine_enabled_flag : 1;
uint64_t sps_affine_amvr_enabled_flag : 1;
uint64_t sps_affine_prof_enabled_flag : 1;
uint64_t sps_bcw_enabled_flag : 1;
uint64_t sps_ciip_enabled_flag : 1;
uint64_t sps_gpm_enabled_flag : 1;
uint64_t sps_isp_enabled_flag : 1;
uint64_t sps_mrl_enabled_flag : 1;
uint64_t sps_mip_enabled_flag : 1;
uint64_t sps_cclm_enabled_flag : 1;
uint64_t sps_chroma_horizontal_collocated_flag : 1;
uint64_t sps_chroma_vertical_collocated_flag : 1;
uint64_t sps_palette_enabled_flag : 1;
uint64_t sps_act_enabled_flag : 1;
uint64_t sps_ibc_enabled_flag : 1;
uint64_t sps_ladf_enabled_flag : 1;
uint64_t sps_explicit_scaling_list_enabled_flag : 1;
uint64_t sps_scaling_matrix_for_lfnst_disabled_flag : 1;
uint64_t sps_scaling_matrix_for_alternative_colour_space_disabled_flag : 1;
uint64_t sps_scaling_matrix_designated_colour_space_flag : 1;
uint64_t sps_virtual_boundaries_enabled_flag : 1;
uint64_t sps_virtual_boundaries_present_flag : 1;
/** \brief Reserved for future use, must be zero */
uint64_t reserved : 18;
} bits;
uint64_t value;
} sps_flags;
/** \brief picture level parameters.
* All the parameters except reserved bytes are VVC syntax or spec variables.
*/
/** \brief number of vertical virtual boundaries on the picture.
* NumVerVirtualBoundaries corresponds to VVC spec variable with the same name.
* It is derived according to formula (78) in VVC spec section 7.4.3.8.
*/
uint8_t NumVerVirtualBoundaries;
/** \brief number of horizontal virtual boundaries on the picture.
* NumHorVirtualBoundaries corresponds to VVC spec variable with the same name.
* It is derived according to formula (80) in VVC spec section 7.4.3.8.
*/
uint8_t NumHorVirtualBoundaries;
/** \brief location of the vertical virtual boundary in units of luma samples.
* VirtualBoundaryPosX[] corresponds to VVC spec variable with the same name.
* It is derived according to formula (79) in VVC spec section 7.4.3.8.
*/
uint16_t VirtualBoundaryPosX[3];
/** \brief location of the horizontal virtual boundary in units of luma samples.
* VirtualBoundaryPosY[] corresponds to VVC spec variable with the same name.
* It is derived according to formula (81) in VVC spec section 7.4.3.8.
*/
uint16_t VirtualBoundaryPosY[3];
int32_t pps_scaling_win_left_offset;
int32_t pps_scaling_win_right_offset;
int32_t pps_scaling_win_top_offset;
int32_t pps_scaling_win_bottom_offset;
int8_t pps_num_exp_tile_columns_minus1;
uint16_t pps_num_exp_tile_rows_minus1;
uint16_t pps_num_slices_in_pic_minus1;
uint16_t pps_pic_width_minus_wraparound_offset;
int8_t pps_cb_qp_offset;
int8_t pps_cr_qp_offset;
int8_t pps_joint_cbcr_qp_offset_value;
uint8_t pps_chroma_qp_offset_list_len_minus1;
int8_t pps_cb_qp_offset_list[6];
int8_t pps_cr_qp_offset_list[6];
int8_t pps_joint_cbcr_qp_offset_list[6];
/** \brief Reserved for future use, must be zero */
uint16_t reserved16b01;
uint32_t reserved32b02[VA_PADDING_LOW - 2];
union {
struct {
uint32_t pps_loop_filter_across_tiles_enabled_flag : 1;
uint32_t pps_rect_slice_flag : 1;
uint32_t pps_single_slice_per_subpic_flag : 1;
uint32_t pps_loop_filter_across_slices_enabled_flag : 1;
uint32_t pps_weighted_pred_flag : 1;
uint32_t pps_weighted_bipred_flag : 1;
uint32_t pps_ref_wraparound_enabled_flag : 1;
uint32_t pps_cu_qp_delta_enabled_flag : 1;
uint32_t pps_cu_chroma_qp_offset_list_enabled_flag : 1;
uint32_t pps_deblocking_filter_override_enabled_flag : 1;
uint32_t pps_deblocking_filter_disabled_flag : 1;
uint32_t pps_dbf_info_in_ph_flag : 1;
uint32_t pps_sao_info_in_ph_flag : 1;
uint32_t pps_alf_info_in_ph_flag : 1;
/** \brief Reserved for future use, must be zero */
uint32_t reserved : 18;
} bits;
uint32_t value;
} pps_flags;
/** \brief picture header parameters.
* All the parameters except reserved bytes are VVC syntax or spec variables.
*/
uint8_t ph_lmcs_aps_id;
uint8_t ph_scaling_list_aps_id;
uint8_t ph_log2_diff_min_qt_min_cb_intra_slice_luma;
uint8_t ph_max_mtt_hierarchy_depth_intra_slice_luma;
uint8_t ph_log2_diff_max_bt_min_qt_intra_slice_luma;
uint8_t ph_log2_diff_max_tt_min_qt_intra_slice_luma;
uint8_t ph_log2_diff_min_qt_min_cb_intra_slice_chroma;
uint8_t ph_max_mtt_hierarchy_depth_intra_slice_chroma;
uint8_t ph_log2_diff_max_bt_min_qt_intra_slice_chroma;
uint8_t ph_log2_diff_max_tt_min_qt_intra_slice_chroma;
uint8_t ph_cu_qp_delta_subdiv_intra_slice;
uint8_t ph_cu_chroma_qp_offset_subdiv_intra_slice;
uint8_t ph_log2_diff_min_qt_min_cb_inter_slice;
uint8_t ph_max_mtt_hierarchy_depth_inter_slice;
uint8_t ph_log2_diff_max_bt_min_qt_inter_slice;
uint8_t ph_log2_diff_max_tt_min_qt_inter_slice;
uint8_t ph_cu_qp_delta_subdiv_inter_slice;
uint8_t ph_cu_chroma_qp_offset_subdiv_inter_slice;
/** \brief Reserved for future use, must be zero */
uint16_t reserved16b02;
uint32_t reserved32b03[VA_PADDING_LOW - 2];
union {
struct {
uint32_t ph_non_ref_pic_flag : 1;
uint32_t ph_alf_enabled_flag : 1;
uint32_t ph_alf_cb_enabled_flag : 1;
uint32_t ph_alf_cr_enabled_flag : 1;
uint32_t ph_alf_cc_cb_enabled_flag : 1;
uint32_t ph_alf_cc_cr_enabled_flag : 1;
uint32_t ph_lmcs_enabled_flag : 1;
uint32_t ph_chroma_residual_scale_flag : 1;
uint32_t ph_explicit_scaling_list_enabled_flag : 1;
uint32_t ph_virtual_boundaries_present_flag : 1;
uint32_t ph_temporal_mvp_enabled_flag : 1;
uint32_t ph_mmvd_fullpel_only_flag : 1;
uint32_t ph_mvd_l1_zero_flag : 1;
uint32_t ph_bdof_disabled_flag : 1;
uint32_t ph_dmvr_disabled_flag : 1;
uint32_t ph_prof_disabled_flag : 1;
uint32_t ph_joint_cbcr_sign_flag : 1;
uint32_t ph_sao_luma_enabled_flag : 1;
uint32_t ph_sao_chroma_enabled_flag : 1;
uint32_t ph_deblocking_filter_disabled_flag : 1;
/** \brief Reserved for future use, must be zero */
uint32_t reserved : 12;
} bits;
uint32_t value;
} ph_flags;
/** \brief Reserved for future use, must be zero */
uint32_t reserved32b04;
union {
struct {
/** \brief Flag to indicate if current picture is an intra picture.
* Takes value 1 when all slices of current picture are intra slices.
* Takes value 0 when some slices of current picture may not be
* intra slices.
*/
uint32_t IntraPicFlag : 1; // [0..1]
/** \brief Reserved for future use, must be zero */
uint32_t reserved : 31;
} fields;
uint32_t value;
} PicMiscFlags;
/** \brief Reserved bytes for future use, must be zero */
uint32_t reserved32b[VA_PADDING_HIGH + 1];
} VAPictureParameterBufferVVC;
/**
* \brief VVC Slice Parameter Buffer Structure
*
* VASliceParameterBufferVVC structure should be accompanied by a
* slice data buffer, which holds the whole packed slice NAL unit bit stream
* with emulation prevention bytes not removed.
*
* This structure conveys parameters related to slice header and should
* be sent once per slice.
*/
typedef struct _VASliceParameterBufferVVC {
/** @name Codec-independent Slice Parameter Buffer base. */
/**@{*/
/** \brief Number of bytes in the slice data buffer for this slice
* counting from and including NAL unit header.
*/
uint32_t slice_data_size;
/** \brief The offset to the NAL unit header for this slice */
uint32_t slice_data_offset;
/** \brief Slice data buffer flags. See \c VA_SLICE_DATA_FLAG_XXX. */
uint32_t slice_data_flag;
/**
* \brief Byte offset from NAL unit header to the beginning of slice_data().
*
* This byte offset is relative to and includes the NAL unit header
* and represents the number of bytes parsed in the slice_header()
* after the removal of any emulation prevention bytes in
* there. However, the slice data buffer passed to the hardware is
* the original bitstream, thus including any emulation prevention
* bytes.
*/
uint32_t slice_data_byte_offset;
/** \brief index into ReferenceFrames[]
* RefPicList[][] corresponds to VVC spec variable with the same name.
* Value range [0..14, 0xFF], where 0xFF indicates invalid entry.
*/
uint8_t RefPicList[2][15];
/**
* \brief the subpicture ID of the subpicture that contains the slice.
* The value of the variable CurrSubpicIdx
* is derived to be such that SubpicIdVal[CurrSubpicIdx] is equal
* to sh_subpic_id. CurrSubpicIdx is the index of array VASubPicArrayBufferVVC.SubPicSet[].
* And it is the spec variable with the same name.
*/
uint16_t sh_subpic_id;
/* parameters below are VVC syntax or spec variables. */
uint16_t sh_slice_address;
uint16_t sh_num_tiles_in_slice_minus1;
uint8_t sh_slice_type;
uint8_t sh_num_alf_aps_ids_luma;
uint8_t sh_alf_aps_id_luma[7];
uint8_t sh_alf_aps_id_chroma;
uint8_t sh_alf_cc_cb_aps_id;
uint8_t sh_alf_cc_cr_aps_id;
/**
* \brief NumRefIdxActive[i] - 1 specifies the maximum reference index
* for RPL i that may be used to decode the slice. When NumRefIdxActive[i]
* is equal to 0, no reference index for RPL i is used to decode the slice.
* NumRefIdxActive[] corresponds to VVC spec variable with the same name.
* It is derived according to formula (138) in VVC spec section 7.4.8.
*/
uint8_t NumRefIdxActive[2];
uint8_t sh_collocated_ref_idx;
/**
* \brief initial value of the QpY quantization parameter for the slice.
* SliceQpY corresponds to VVC spec variable with the same name.
* It is derived according to formula (86) in VVC spec section 7.4.3.8
* and formula (139) in VVC Spec section 7.4.8.
*/
int8_t SliceQpY;
/* parameters below are VVC syntax. */
int8_t sh_cb_qp_offset;
int8_t sh_cr_qp_offset;
int8_t sh_joint_cbcr_qp_offset;
int8_t sh_luma_beta_offset_div2;
int8_t sh_luma_tc_offset_div2;
int8_t sh_cb_beta_offset_div2;
int8_t sh_cb_tc_offset_div2;
int8_t sh_cr_beta_offset_div2;
int8_t sh_cr_tc_offset_div2;
/** \brief Reserved bytes for future use, must be zero */
uint8_t reserved8b[VA_PADDING_LOW - 1];
uint32_t reserved32b;
// weighted prediction info
VAWeightedPredInfo WPInfo;
union {
struct {
/* flags below are VVC syntax. */
uint32_t sh_alf_enabled_flag : 1;
uint32_t sh_alf_cb_enabled_flag : 1;
uint32_t sh_alf_cr_enabled_flag : 1;
uint32_t sh_alf_cc_cb_enabled_flag : 1;
uint32_t sh_alf_cc_cr_enabled_flag : 1;
uint32_t sh_lmcs_used_flag : 1;
uint32_t sh_explicit_scaling_list_used_flag : 1;
uint32_t sh_cabac_init_flag : 1;
uint32_t sh_collocated_from_l0_flag : 1;
uint32_t sh_cu_chroma_qp_offset_enabled_flag : 1;
uint32_t sh_sao_luma_used_flag : 1;
uint32_t sh_sao_chroma_used_flag : 1;
uint32_t sh_deblocking_filter_disabled_flag : 1;
uint32_t sh_dep_quant_used_flag : 1;
uint32_t sh_sign_data_hiding_used_flag : 1;
uint32_t sh_ts_residual_coding_disabled_flag : 1;
/** \brief Reserved for future use, must be zero */
uint32_t reserved : 16;
} bits;
uint32_t value;
} sh_flags;
/** \brief Reserved bytes for future use, must be zero */
uint32_t va_reserved[VA_PADDING_MEDIUM];
} VASliceParameterBufferVVC;
/**
* \brief VVC Scaling List Data Structure
*
* Host decoder sends in an array of VVC Scaling Lists through one or multiple
* buffers which may contain 1 to 8 VAScalingListVVC data structures in total.
* Each buffer contains an integer number of VAScalingListVVC data structures
* with no gap in between.
* Driver may store the data internally. Host decoder may choose not to
* send the same scaling list data for each frame. When a VAScalingListVVC
* structure carries a same value of aps_adaptation_parameter_set_id
* as a previously stored structure, driver should override the old structure
* with values in the new structure.
* VAIQMatrixBufferType is used to send this buffer.
*/
typedef struct _VAScalingListVVC {
/** \brief VVC syntax to specify the identifier for the APS.*/
uint8_t aps_adaptation_parameter_set_id;
/** \brief Reserved for future use, must be zero */
uint8_t reserved8b;
/**
* \brief Specifies the spec variable ScalingMatrixDCRec[id−14],
* where id = [14..27].
*/
uint8_t ScalingMatrixDCRec[14];
/**
* \brief Specifies the spec variable ScalingMatrixRec[id][x][y],
* where id = [0..1]. Check section 7.4.3.20 for derivation process.
*/
uint8_t ScalingMatrixRec2x2[2][2][2];
/**
* \brief Specifies the spec variable ScalingMatrixRec[id][x][y],
* where id = [2..7]. Check section 7.4.3.20 for derivation process.
*/
uint8_t ScalingMatrixRec4x4[6][4][4];
/**
* \brief Specifies the spec variable ScalingMatrixRec[id][x][y],
* where id = [8..27]. Check section 7.4.3.20 for derivation process.
*/
uint8_t ScalingMatrixRec8x8[20][8][8];
/** \brief Reserved bytes for future use, must be zero */
uint32_t va_reserved[VA_PADDING_MEDIUM];
} VAScalingListVVC;
/**
* \brief VVC Adaptive Loop Filter Data Structure
*
* Host decoder sends in an array of VVC ALF sets through one or multiple
* buffers which may contain 1 to 8 VAAlfDataVVC data structures in total.
* Each buffer contains an integer number of VAAlfDataVVC data structures
* with no gap in between.
* Driver may store the data internally. Host decoder may choose not to
* send the same ALF data for each frame. When a VAAlfDataVVC structure
* carries a same value of aps_adaptation_parameter_set_id as a previously
* stored structure, driver should override the old structure
* with values in the new structure.
* VAAlfBufferType is used to send this buffer.
*/
typedef struct _VAAlfDataVVC {
/**
* \brief VVC Adaptive Loop Filter parameters.
* All the parameters except reserved bytes are VVC syntax or spec variables.
*/
uint8_t aps_adaptation_parameter_set_id;
uint8_t alf_luma_num_filters_signalled_minus1;
uint8_t alf_luma_coeff_delta_idx[25];
int8_t filtCoeff[25][12];
uint8_t alf_luma_clip_idx[25][12];
uint8_t alf_chroma_num_alt_filters_minus1;
int8_t AlfCoeffC[8][6];
uint8_t alf_chroma_clip_idx[8][6];
uint8_t alf_cc_cb_filters_signalled_minus1;
int8_t CcAlfApsCoeffCb[4][7];
uint8_t alf_cc_cr_filters_signalled_minus1;
int8_t CcAlfApsCoeffCr[4][7];
/** \brief Reserved bytes for future use, must be zero */
uint16_t reserved16b;
uint32_t reserved32b;
union {
struct {
uint32_t alf_luma_filter_signal_flag : 1;
uint32_t alf_chroma_filter_signal_flag : 1;
uint32_t alf_cc_cb_filter_signal_flag : 1;
uint32_t alf_cc_cr_filter_signal_flag : 1;
uint32_t alf_luma_clip_flag : 1;
uint32_t alf_chroma_clip_flag : 1;
/** \brief Reserved for future use, must be zero */
uint32_t reserved : 26;
} bits;
uint32_t value;
} alf_flags;
/** \brief Reserved for future use, must be zero */
uint32_t va_reserved[VA_PADDING_MEDIUM];
} VAAlfDataVVC;
/**
* \brief VVC Luma Mapping with Chroma Scaling Data Structure
*
* Host decoder sends in an array of VVC LMCS sets through one or multiple
* buffers which may contain 1 to 4 VALmcsDataVVC data structures in total.
* Each buffer contains an integer number of VALmcsDataVVC data structures
* with no gap in between.
* Driver may store the data internally. Host decoder may choose not to
* send the same LMCS data for each frame. When a VALmcsDataVVC structure
* carries a same value of aps_adaptation_parameter_set_id as a previously
* stored structure, driver should override the old structure
* with values in the new structure.
* VALmcsBufferType is used to send this buffer.
*/
typedef struct _VALmcsDataVVC {
/**
* \brief VVC Luma Mapping with Chroma Scaling parameters.
* All the parameters except reserved bytes are VVC syntax or spec variables.
*/
uint8_t aps_adaptation_parameter_set_id;
uint8_t lmcs_min_bin_idx;
uint8_t lmcs_delta_max_bin_idx;
int16_t lmcsDeltaCW[16];
int8_t lmcsDeltaCrs;
/** \brief Reserved for future use, must be zero */
uint8_t reserved8b[VA_PADDING_LOW - 1];
uint32_t va_reserved[VA_PADDING_MEDIUM];
} VALmcsDataVVC;
/**
* \brief VVC SubPicture Data Structure
*
* Host decoder sends in an array of VVC SubPic sets through one or
* multiple buffers which contain sps_num_subpics_minus1 + 1
* VASubPicVVC data structures in total. Each buffer contains
* an integer number of VASubPicVVC data structures with no gap in between.
* The Subpic sets are sent sequentially in the order of indices
* from 0 to sps_num_subpics_minus1 according to the bitstream.
* VASubPicBufferType is used to send this buffer.
*/
typedef struct _VASubPicVVC {
/**
* \brief VVC SubPicture layout parameters.
* All the parameters except reserved bytes are VVC syntax or spec variables.
*/
uint16_t sps_subpic_ctu_top_left_x;
uint16_t sps_subpic_ctu_top_left_y;
uint16_t sps_subpic_width_minus1;
uint16_t sps_subpic_height_minus1;
/** \brief the subpicture ID of the i-th subpicture.
* It is same variable as in VVC spec.
*/
uint16_t SubpicIdVal;
union {
struct {
uint16_t sps_subpic_treated_as_pic_flag : 1;
uint16_t sps_loop_filter_across_subpic_enabled_flag : 1;
/** \brief Reserved for future use, must be zero */
uint16_t reserved : 14;
} bits;
uint16_t value;
} subpic_flags;
/** \brief Reserved for future use, must be zero */
uint32_t va_reserved[VA_PADDING_LOW];
} VASubPicVVC;
/**
* \brief data buffer of tile widths and heights.
* VATileBufferType is used to send this buffer.
*
* Host decoder sends in number of pps_num_exp_tile_columns_minus1 + 1
* tile column widths of pps_tile_column_width_minus1[i], followed by
* number of pps_num_exp_tile_rows_minus1 + 1 of tile row heights of
* pps_tile_row_height_minus1[i], through one or multiple buffers.
* Each tile width or height is formatted as
uint16_t tile_dimension;
* Each buffer contains an integer number of tile_dimension with
* no gap in between.
* The buffers with type VATileBufferType should be submitted for each
* picture. And driver will derive the tile structure from it.
* When pps_num_exp_tile_columns_minus1 + pps_num_exp_tile_rows_minus1 equals 0,
* this buffer is still submitted by app to driver.
*/
/**
* \brief VVC SliceStruct Data Structure
*
* Host decoder sends in an array of SliceStruct sets through one or multiple
* buffers. These SliceStruct sets contain only the "explicit" slices parsed
* from PPS header.
* Each SliceStruct set is described by VASliceStructVVC data structure.
* Each buffer contains an integer number of VASliceStructVVC data structures,
* which are laid out sequentially in the order of
* ascending slice indices according to the spec with no gap in between.
*
* When pps_rect_slice_flag equals 0 or there are no explicit slices,
* this buffer is not submitted by app to driver. Otherwise, for each picture,
* this buffer should be submitted.
*
* Note: When pps_slice_width_in_tiles_minus1 + pps_slice_height_in_tiles_minus1
* equals 0, if the sum of pps_exp_slice_height_in_ctus_minus1 + 1 of all those
* slices with same SliceTopLeftTileIdx value is less than the height of tile
* SliceTopLeftTileIdx in unit of CTUs, driver should derive the rest slices in
* that tile according to equation (21) in spec section 6.5.1. And VASliceStructVVC
* for these (derived) slices are not passed in to LibVA by App.
*
* App should populate the data entries regardless of values of
* pps_single_slice_per_subpic_flag or sps_subpic_info_present_flag.
*
* VASliceStructBufferType is used to send this buffer.
*/
typedef struct _VASliceStructVVC {
/** \brief the tile index of which the starting CTU (top-left) of
* the slice belongs to. The tile index is in raster scan order.
* Same syntax variable as in VVC spec.
*/
uint16_t SliceTopLeftTileIdx;
/* plus 1 specifies the width of the rectangular slice in units
* of tile columns.
*/
uint16_t pps_slice_width_in_tiles_minus1;
/* plus 1 specifies the height of the rectangular slice in units
* of tile rows. If the slice does not cover the whole tile,
* pps_slice_height_in_tiles_minus1 shall be 0.
*/
uint16_t pps_slice_height_in_tiles_minus1;
/* plus 1 specifies the height of the rectangular slice in units
* of CTU rows.
* If pps_slice_width_in_tiles_minus1 + pps_slice_height_in_tiles_minus1 > 0,
* set this value to 0.
* If pps_slice_width_in_tiles_minus1 + pps_slice_height_in_tiles_minus1 == 0,
* and if there is only one slice in tile, set this value to the number of
* CTU rows of the tile minus 1, otherwise, set the value equal to
* corresponding pps_exp_slice_height_in_ctus_minus1 from bitstream.
*/
uint16_t pps_exp_slice_height_in_ctus_minus1;
/** \brief Reserved for future use, must be zero */
uint32_t va_reserved[VA_PADDING_LOW];
} VASliceStructVVC;
/**@}*/
#ifdef __cplusplus
}
#endif
#endif /* VA_DEC_VVC_H */