/*
* Copyright (c) 2007-2014 Intel Corporation. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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*/
/**
* \file va_enc_hevc.h
* \brief The HEVC encoding API
*
* This file contains the \ref api_enc_hevc "HEVC encoding API".
*
*/
#ifndef VA_ENC_HEVC_H
#define VA_ENC_HEVC_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
/**
* \defgroup api_enc_hevc HEVC encoding API
*
* @{
*/
/**
* @name Picture flags
*
* Those flags flags are meant to signal when a picture marks the end
* of a sequence, a stream, or even both at once.
*
* @{
*/
/**
* \brief Marks the last picture in the sequence.
*
* i.e. the driver appends \c end_of_seq() NAL unit to the encoded frame.
*/
#define HEVC_LAST_PICTURE_EOSEQ 0x01
/**
* \brief Marks the last picture in the stream.
*
* i.e. the driver appends \c end_of_stream() NAL unit to the encoded frame.
*/
#define HEVC_LAST_PICTURE_EOSTREAM 0x02
/**@}*/
/**
* \brief Packed header types specific to HEVC encoding.
*
* Types of packed headers generally used for HEVC encoding. Each
* associated packed header data buffer shall contain the start code
* prefix 0x000001 followed by the complete NAL unit, thus also
* including the \c nal_unit_type.
*
* Note: the start code prefix can contain an arbitrary number of leading
* zeros. The driver will skip them for emulation prevention bytes insertion,
* if necessary.
*/
typedef enum {
/**
* \brief Packed Video Parameter Set (VPS).
*
* The corresponding packed header data buffer shall contain the
* complete video_parameter_set_rbsp() syntax element.
*
* Note: packed \c nal_unit_type shall be equal to 32.
*/
VAEncPackedHeaderHEVC_VPS = VAEncPackedHeaderSequence,
/**
* \brief Packed Sequence Parameter Set (SPS).
*
* The corresponding packed header data buffer shall contain the
* complete seq_parameter_set_rbsp() syntax element.
*
* Note: packed \c nal_unit_type shall be equal to 33.
*/
VAEncPackedHeaderHEVC_SPS = VAEncPackedHeaderSequence,
/**
* \brief Packed Picture Parameter Set (PPS).
*
* The corresponding packed header data buffer shall contain the
* complete pic_parameter_set_rbsp() syntax element.
*
* Note: packed \c nal_unit_type shall be equal to 34.
*/
VAEncPackedHeaderHEVC_PPS = VAEncPackedHeaderPicture,
/**
* \brief Packed slice header.
*
* The corresponding packed header data buffer shall contain the
* \c slice_header() syntax element only, along with any start
* code prefix and NAL unit type preceeding it. i.e. this means
* that the buffer does not contain any of the \c slice_data() or
* the \c rbsp_slice_trailing_bits().
*
* Note: packed \c nal_unit_type shall be equal to 0 to 9 (non-IRAP
* picture), or 16 to 21 (IRAP picture).
*/
VAEncPackedHeaderHEVC_Slice = VAEncPackedHeaderSlice,
/**
* \brief Packed Supplemental Enhancement Information (SEI).
*
* The corresponding packed header data buffer shall contain the
* complete sei_rbsp() syntax element, thus including several
* sei_message() elements if necessary.
*
* Note: packed \c nal_unit_type shall be equal to 39 or 40.
*/
VAEncPackedHeaderHEVC_SEI = (VAEncPackedHeaderMiscMask | 1),
} VAEncPackedHeaderTypeHEVC;
/**
* \brief Sequence parameter for HEVC encoding in main & main 10
* profiles.
*
* This structure holds information for \c seq_parameter_set_data() as
* defined by the HEVC specification.
*
* If packed sequence headers mode is used, i.e. if the encoding
* pipeline was configured with the #VA_ENC_PACKED_HEADER_SEQUENCE
* flag, then the driver expects two more buffers to be provided to
* the same \c vaRenderPicture() as this buffer:
* - a #VAEncPackedHeaderParameterBuffer with type set to
* VAEncPackedHeaderType::VAEncPackedHeaderSequence ;
* - a #VAEncPackedHeaderDataBuffer which holds the actual packed
* header data.
*
* If \c seq_scaling_matrix_present_flag is set to \c 1, then a
* #VAQMatrixBufferHEVC buffer shall also be provided within the same
* \c vaRenderPicture() call as this sequence parameter buffer.
*/
typedef struct _VAEncSequenceParameterBufferHEVC {
/** \brief Same as the HEVC bitstream syntax element.
* value range [1..2].
*/
uint8_t general_profile_idc;
/** \brief Same as the HEVC bitstream syntax element.
* general_level_idc shall be set equal to a value of 30 times the level
* numbers allowed [1, 2, 2.1, 3, 3.1, 4, 4.1, 5, 5.1, 5.2, 6, 6.1, 6.2]
*/
uint8_t general_level_idc;
/** \brief Same as the HEVC bitstream syntax element.
* Only value 0 is allowed for level value below 4, exclusive.
*/
uint8_t general_tier_flag;
/** \brief Period between I frames. */
uint32_t intra_period;
/** \brief Period between IDR frames. */
uint32_t intra_idr_period;
/** \brief Period between I/P frames. */
uint32_t ip_period;
/**
* \brief Initial bitrate set for this sequence in CBR or VBR modes.
*
* This field represents the initial bitrate value for this
* sequence if CBR or VBR mode is used, i.e. if the encoder
* pipeline was created with a #VAConfigAttribRateControl
* attribute set to either \ref VA_RC_CBR or \ref VA_RC_VBR.
*
* The bitrate can be modified later on through
* #VAEncMiscParameterRateControl buffers.
*/
uint32_t bits_per_second;
/** \brief Picture width in pixel samples.
* Its value must be multiple of min CU size.
*/
uint16_t pic_width_in_luma_samples;
/** \brief Picture height in pixel samples.
* Its value must be multiple of min CU size.
*/
uint16_t pic_height_in_luma_samples;
union {
struct {
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t chroma_format_idc : 2;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t separate_colour_plane_flag : 1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t bit_depth_luma_minus8 : 3;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t bit_depth_chroma_minus8 : 3;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t scaling_list_enabled_flag : 1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t strong_intra_smoothing_enabled_flag : 1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t amp_enabled_flag : 1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t sample_adaptive_offset_enabled_flag : 1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t pcm_enabled_flag : 1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t pcm_loop_filter_disabled_flag : 1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t sps_temporal_mvp_enabled_flag : 1;
uint32_t reserved_bits : 16;
} bits;
uint32_t value;
} seq_fields;
/** \brief Same as the HEVC bitstream syntax element.
* value range [0..3]
*/
uint8_t log2_min_luma_coding_block_size_minus3;
/** \brief Same as the HEVC bitstream syntax element.
*/
uint8_t log2_diff_max_min_luma_coding_block_size;
/** \brief Same as the HEVC bitstream syntax element.
* value range [0..3]
*/
uint8_t log2_min_transform_block_size_minus2;
/** \brief Same as the HEVC bitstream syntax element.
*/
uint8_t log2_diff_max_min_transform_block_size;
/** \brief Same as the HEVC bitstream syntax element.
* value range [2]
*/
uint8_t max_transform_hierarchy_depth_inter;
/** \brief Same as the HEVC bitstream syntax element.
* value range [2]
*/
uint8_t max_transform_hierarchy_depth_intra;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t pcm_sample_bit_depth_luma_minus1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t pcm_sample_bit_depth_chroma_minus1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t log2_min_pcm_luma_coding_block_size_minus3;
/** \brief Derived from the HEVC bitstream syntax element.
* log2_min_pcm_luma_coding_block_size_minus3 +
* log2_diff_max_min_pcm_luma_coding_block_size
*/
uint32_t log2_max_pcm_luma_coding_block_size_minus3;
/** @name VUI parameters (optional) */
/**@{*/
/** \brief Same as the HEVC bitstream syntax element. */
uint8_t vui_parameters_present_flag;
union {
struct {
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t aspect_ratio_info_present_flag : 1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t neutral_chroma_indication_flag : 1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t field_seq_flag : 1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t vui_timing_info_present_flag : 1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t bitstream_restriction_flag : 1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t tiles_fixed_structure_flag : 1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t motion_vectors_over_pic_boundaries_flag : 1;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t restricted_ref_pic_lists_flag : 1;
/** \brief Range: 0 to 16, inclusive. */
uint32_t log2_max_mv_length_horizontal : 5;
/** \brief Range: 0 to 16, inclusive. */
uint32_t log2_max_mv_length_vertical : 5;
} bits;
uint32_t value;
} vui_fields;
/** \brief Same as the HEVC bitstream syntax element. */
uint8_t aspect_ratio_idc;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t sar_width;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t sar_height;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t vui_num_units_in_tick;
/** \brief Same as the HEVC bitstream syntax element. */
uint32_t vui_time_scale;
/** \brief Same as the HEVC bitstream syntax element. */
uint16_t min_spatial_segmentation_idc;
/** \brief Same as the HEVC bitstream syntax element. */
uint8_t max_bytes_per_pic_denom;
/** \brief Same as the HEVC bitstream syntax element. */
uint8_t max_bits_per_min_cu_denom;
/**@}*/
} VAEncSequenceParameterBufferHEVC;
/****************************
* HEVC data structures
****************************/
/**
* \brief Picture parameter for HEVC encoding in main & main 10
* profiles.
*
* This structure holds information for \c pic_parameter_set_rbsp() as
* defined by the HEVC specification.
*
* If packed picture headers mode is used, i.e. if the encoding
* pipeline was configured with the #VA_ENC_PACKED_HEADER_PICTURE
* flag, then the driver expects two more buffers to be provided to
* the same \c vaRenderPicture() as this buffer:
* - a #VAEncPackedHeaderParameterBuffer with type set to
* VAEncPackedHeaderType::VAEncPackedHeaderPicture ;
* - a #VAEncPackedHeaderDataBuffer which holds the actual packed
* header data.
*
* If \c pic_scaling_matrix_present_flag is set to \c 1, then a
* #VAQMatrixBufferHEVC buffer shall also be provided within the same
* \c vaRenderPicture() call as this picture parameter buffer.
*/
typedef struct _VAEncPictureParameterBufferHEVC {
/**
* \brief Information about the picture to be encoded.
*
* See #VAPictureHEVC for further description of each field.
* Note that decoded_curr_pic.picture_id represents the reconstructed
* (decoded) picture. User provides a scratch VA surface ID here.
* Long term reference and RPS related fields should be set to 0
* and ignored.
*/
VAPictureHEVC decoded_curr_pic;
/**
* \brief Decoded Picture Buffer (DPB).
*
* This array represents the list of reconstructed (decoded)
* frames used as reference. It is important to keep track of
* reconstructed frames so that they can be used later on as
* reference for P or B-frames encoding.
*/
VAPictureHEVC reference_frames[15];
/**
* \brief Output encoded bitstream.
*
* \ref coded_buf has type #VAEncCodedBufferType. It should be
* large enough to hold the compressed NAL slice and possibly VPS, SPS
* and PPS NAL units, and other NAL units such as SEI.
*/
VABufferID coded_buf;
/** \brief collocated reference picture buffer index of ReferenceFrames[].
* Please note it is different from HEVC syntac element collocated_ref_idx.
* When the HEVC syntax element slice_temporal_mvp_enable_flag takes value 0,
* collocated_ref_pic_index should take value 0xFF. .
* Range: [0..14, 0xFF]
*/
uint8_t collocated_ref_pic_index;
/**
* \brief OR'd flags describing whether the picture is the last one or not.
*
* This fields holds 0 if the picture to be encoded is not the last
* one in the stream or sequence. Otherwise, it is a combination of
* \ref HEVC_LAST_PICTURE_EOSEQ or \ref HEVC_LAST_PICTURE_EOSTREAM.
*/
uint8_t last_picture;
/** \brief \c init_qp_minus26 + 26. */
uint8_t pic_init_qp;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint8_t diff_cu_qp_delta_depth;
/** \brief Corresponds to HEVC syntax element of the same name. */
int8_t pps_cb_qp_offset;
/** \brief Corresponds to HEVC syntax element of the same name. */
int8_t pps_cr_qp_offset;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint8_t num_tile_columns_minus1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint8_t num_tile_rows_minus1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint8_t column_width_minus1[19];
/** \brief Corresponds to HEVC syntax element of the same name. */
uint8_t row_height_minus1[21];
/** \brief Corresponds to HEVC syntax element of the same name. */
uint8_t log2_parallel_merge_level_minus2;
/** \brief Application may set the CTU bit size limit based on
* spec requirement (A.3.2), or other value for special purpose.
* If the value is set 0, no bit size limit is checked.
*/
uint8_t ctu_max_bitsize_allowed;
/** \brief Maximum reference index for reference picture list 0.
* value range: [0..14].
*/
uint8_t num_ref_idx_l0_default_active_minus1;
/** \brief Maximum reference index for reference picture list 1.
* value range: [0..14].
*/
uint8_t num_ref_idx_l1_default_active_minus1;
/** \brief PPS header
* Used by GPU to generate new slice headers in slice size control.
* value range: [0..63].
*/
uint8_t slice_pic_parameter_set_id;
/** \brief NAL unit type
* Used by GPU to generate new slice headers in slice size control.
* value range: [0..63].
*/
uint8_t nal_unit_type;
union {
struct {
/** \brief Is picture an IDR picture? */
uint32_t idr_pic_flag : 1;
/** \brief Picture type.
* I - 1;
* P - 2;
* B - 3;
* B1 - 4;
* B2 - 5;
* B1 and B2 are frame types for hierachical B, explanation
* can refer to num_b_in_gop[].
*/
uint32_t coding_type : 3;
/** \brief Is picture a reference picture? */
uint32_t reference_pic_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t dependent_slice_segments_enabled_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t sign_data_hiding_enabled_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t constrained_intra_pred_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t transform_skip_enabled_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t cu_qp_delta_enabled_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t weighted_pred_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t weighted_bipred_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t transquant_bypass_enabled_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t tiles_enabled_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t entropy_coding_sync_enabled_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t loop_filter_across_tiles_enabled_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t pps_loop_filter_across_slices_enabled_flag : 1;
/** \brief A combination of HEVC syntax element of
* sps_scaling_list_data_present_flag and
* pps_scaling_list_data_present_flag
* when scaling_list_enable_flag is 0, it must be 0.
*/
uint32_t scaling_list_data_present_flag : 1;
/** \brief indicate the current picture contains significant
* screen contents (text, characters, etc.) or animated image.
* GPU may want to treat them differently from normal video.
* For example, encoder may choose a small transform unit size
* and may use transform skip mode.
*/
uint32_t screen_content_flag : 1;
/**
* When either weighted_pred_flag or weighted_bipred_flag is
* turned on, the flag enable_gpu_weighted_prediction requests
* GPU to determine weighted prediction factors. In this case,
* the following parameters in slice control data structure
* shall be ignored:
* luma_log2_weight_denom, delta_chroma_log2_weight_denom,
* luma_offset_l0[15], luma_offset_l1[15],
* delta_luma_weight_l0[15], delta_luma_weight_l1[15],
* chroma_offset_l0[15][2], chroma_offset_l1[15][2],
* and delta_chroma_weight_l0[15][2], delta_chroma_weight_l1[15][2].
*/
uint32_t enable_gpu_weighted_prediction : 1;
/** \brief HEVC syntax element in slice segment header
* GPU uses it to generate new slice headers in slice size control.
*/
uint32_t no_output_of_prior_pics_flag : 1;
uint32_t reserved : 11;
} bits;
uint32_t value;
} pic_fields;
} VAEncPictureParameterBufferHEVC;
/**
* \brief Slice parameter for HEVC encoding in main & main 10 profiles.
*
* This structure holds information for \c
* slice_segment_layer_rbsp() as defined by the HEVC
* specification.
*
* If packed slice headers mode is used, i.e. if the encoding
* pipeline was configured with the #VA_ENC_PACKED_HEADER_SLICE
* flag, then the driver expects two more buffers to be provided to
* the same \c vaRenderPicture() as this buffer:
* - a #VAEncPackedHeaderParameterBuffer with type set to
* VAEncPackedHeaderType::VAEncPackedHeaderSlice ;
* - a #VAEncPackedHeaderDataBuffer which holds the actual packed
* header data.
*
*/
typedef struct _VAEncSliceParameterBufferHEVC {
/** \brief Starting CTU address for this slice. */
uint32_t slice_segment_address;
/** \brief Number of CTUs in this slice. */
uint32_t num_ctu_in_slice;
/** \brief Slice type.
* Corresponds to HEVC syntax element of the same name.
*/
uint8_t slice_type;
/** \brief Same as the HEVC bitstream syntax element. */
uint8_t slice_pic_parameter_set_id;
/** \brief Maximum reference index for reference picture list 0.
* Range: 0 to 14, inclusive.
*/
uint8_t num_ref_idx_l0_active_minus1;
/** \brief Maximum reference index for reference picture list 1.
* Range: 0 to 14, inclusive.
*/
uint8_t num_ref_idx_l1_active_minus1;
/** \brief Reference picture list 0 (for P slices). */
VAPictureHEVC ref_pic_list0[15];
/** \brief Reference picture list 1 (for B slices). */
VAPictureHEVC ref_pic_list1[15];
/**@}*/
/** @name pred_weight_table() */
/**@{*/
/** \brief Same as the HEVC bitstream syntax element. */
uint8_t luma_log2_weight_denom;
/** \brief Same as the HEVC bitstream syntax element. */
int8_t delta_chroma_log2_weight_denom;
/** \brief Same as the HEVC bitstream syntax element. */
int8_t delta_luma_weight_l0[15];
/** \brief Same as the HEVC bitstream syntax element. */
int8_t luma_offset_l0[15];
/** \brief Same as the HEVC bitstream syntax element. */
int8_t delta_chroma_weight_l0[15][2];
/** \brief Same as the HEVC spec variable ChromaOffsetL0[]. */
int8_t chroma_offset_l0[15][2];
/** \brief Same as the HEVC bitstream syntax element. */
int8_t delta_luma_weight_l1[15];
/** \brief Same as the HEVC bitstream syntax element. */
int8_t luma_offset_l1[15];
/** \brief Same as the HEVC bitstream syntax element. */
int8_t delta_chroma_weight_l1[15][2];
/** \brief Same as the HEVC spec variable ChromaOffsetL1[]. */
int8_t chroma_offset_l1[15][2];
/**@}*/
/** \brief Corresponds to HEVC spec variable MaxNumMergeCand.
* Range: [1..5].
*/
uint8_t max_num_merge_cand;
/** \brief Same as the HEVC bitstream syntax element. */
int8_t slice_qp_delta;
/** \brief Same as the HEVC bitstream syntax element. */
int8_t slice_cb_qp_offset;
/** \brief Same as the HEVC bitstream syntax element. */
int8_t slice_cr_qp_offset;
/** \brief Same as the HEVC bitstream syntax element. */
int8_t slice_beta_offset_div2;
/** \brief Same as the HEVC bitstream syntax element. */
int8_t slice_tc_offset_div2;
union {
struct {
/** \brief Indicates if current slice is the last one in picture */
uint32_t last_slice_of_pic_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name */
uint32_t dependent_slice_segment_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name */
uint32_t colour_plane_id : 2;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t slice_temporal_mvp_enabled_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t slice_sao_luma_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t slice_sao_chroma_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name.
* if this flag is set to 0, num_ref_idx_l0_active_minus1 should be
* equal to num_ref_idx_l0_default_active_minus1
* as well as for that for l1.
*/
uint32_t num_ref_idx_active_override_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t mvd_l1_zero_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t cabac_init_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t slice_deblocking_filter_disabled_flag : 2;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t slice_loop_filter_across_slices_enabled_flag : 1;
/** \brief Corresponds to HEVC syntax element of the same name. */
uint32_t collocated_from_l0_flag : 1;
} bits;
uint32_t value;
} slice_fields;
/**@}*/
} VAEncSliceParameterBufferHEVC;
/**
* \brief HEVC Quantization Matrix Buffer Structure
*
* This structure is sent once per frame,
* and only when scaling_list_enabled_flag = 1 and scaling_list_data_present_flag = 1.
* Only when scaling_list_data_present_flag = 1, app still
* needs to send in this structure. When scaling_list_enabled_flag = 1 and
* scaling_list_data_present_flag = 0, driver is responsible to generate
* the default scaling list values.
*
* Matrix entries are in raster scan order which follows HEVC spec.
*/
typedef struct _VAQMatrixBufferHEVC
{
/**
* \brief scaling lists,
* corresponds to same HEVC spec syntax element
* ScalingList[ i ][ MatrixID ][ j ].
*
* \brief 4x4 scaling,
*/
uint8_t scaling_lists_4x4[3][2][16];
/**
* \brief 8x8 scaling,
*/
uint8_t scaling_lists_8x8[3][2][64];
/**
* \brief 16x16 scaling,
* correspongs i = 2, MatrixID is in the range of 0 to 5,
* inclusive. And j is in the range of 0 to 63, inclusive.
*/
uint8_t scaling_lists_16x16[3][2][64];
/**
* \brief 32x32 scaling,
* correspongs i = 3, MatrixID is in the range of 0 to 1,
* inclusive. And j is in the range of 0 to 63, inclusive.
*/
uint8_t scaling_lists_32x32[2][64];
/**
* \brief DC values of the 16x16 scaling lists,
* corresponds to HEVC spec syntax
* scaling_list_dc_coef_minus8[ sizeID - 2 ][ matrixID ] + 8
* with sizeID = 2 and matrixID in the range of 0 to 5, inclusive.
*/
uint8_t scaling_list_dc_16x16[3][2];
/**
* \brief DC values of the 32x32 scaling lists,
* corresponds to HEVC spec syntax
* scaling_list_dc_coef_minus8[ sizeID - 2 ][ matrixID ] + 8
* with sizeID = 3 and matrixID in the range of 0 to 1, inclusive.
*/
uint8_t scaling_list_dc_32x32[2];
} VAQMatrixBufferHEVC;
/**@}*/
#ifdef __cplusplus
}
#endif
#endif /* VA_ENC_HEVC_H */