/*

 * 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

 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 */

/**

 * \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.

     *

     * @deprecated

     * This is a deprecated packed header flag, All applications can use

     * \c VA_ENC_PACKED_HEADER_RAW_DATA to pass the corresponding packed

     * SEI header data buffer to the driver

     */

    VAEncPackedHeaderHEVC_SEI  va_deprecated_enum = (0x80000000 | 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;

    /** \brief Reserved bytes for future use, must be zero */

    uint32_t                va_reserved[VA_PADDING_MEDIUM];

    /**@}*/

} 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;

    /** \brief Reserved bytes for future use, must be zero */

    uint32_t                va_reserved[VA_PADDING_HIGH];

} 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;

    /** \brief Reserved bytes for future use, must be zero */

    uint32_t                va_reserved[VA_PADDING_MEDIUM];

    /**@}*/

} 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];

    /** \brief Reserved bytes for future use, must be zero */

    uint32_t                va_reserved[VA_PADDING_LOW];

} VAQMatrixBufferHEVC;

/**@}*/

#ifdef __cplusplus

}

#endif

#endif /* VA_ENC_HEVC_H */