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27 * \brief The FEI encoding HEVC special API
31 #ifndef __VA_FEI_HEVC_H__
32 #define __VA_FEI_HEVC_H__
41 /** \brief FEI frame level control buffer for HEVC */
42 typedef struct _VAEncMiscParameterFEIFrameControlHEVC
44 /* one of the VAConfigAttribFEIFunctionType values */
46 /** \brief CTB control input buffer. It is valid only when per_ctb_input
47 * is set to 1. The data in this buffer correspond to the input source. CTB is in raster scan order,
48 * each CTB control data structure is defined by VAEncFEICTBControlHEVC.
49 * Buffer size shall not be less than the number of CTBs multiplied by
50 * sizeof(VAEncFEICTBControlHEVC).
53 /** \brief CTB cmd per CTB data output of ENC
54 * it is reserved for CTB level information
55 * it should include CU split information and other CTB datas .
56 * Each CTB block has one CTB cmd data.
59 /** \brief CU record data output of ENC
60 * it is reserved for CU level information
61 * it should include CU detail data. include mode,MV, reference etc.
62 * Each CTB block has one CU record data.
65 /** \brief distortion output of ENC or ENC_PAK.
66 * Each CTB has one distortion data with VAEncFEIDistortionHevc
67 * Buffer size shall not be less than the number of CTBs multiplied by
68 * sizeof(VAEncFEIDistortionHevc).
70 VABufferID distortion;
71 /** \brief Qp input buffer. It is valid only when per_block_qp is set to 1.
72 * The data in this buffer correspond to the input source.
73 * One Qp per block block is in raster scan order, each Qp is a signed char (8-bit) value.
76 /** \brief MV predictor. It is valid only when mv_predictor_input is set to non-zero.
77 * Each CTB block has one or more pair of motion vectors and the corresponding
78 * reference indexes as defined by VAEncFEIMVPredictorHEVC. 32x32 block is in raster scan order.
79 * Buffer size shall not be less than the number of 16x16 blocks multiplied by
80 * sizeof(VAEncFEIMVPredictorHEVC). */
81 VABufferID mv_predictor;
83 /** \brief number of MV predictors L0 and L1. the maximum number of motion vector predictor for a 16x16, 32x32 or
84 * 64x64 block is four, it must not be greater than maximum supported MV predictor,
86 uint32_t num_mv_predictors_l0 : 16;
87 uint32_t num_mv_predictors_l1 : 16;
89 /** \brief control parameters */
90 uint32_t search_path : 8;
92 uint32_t reserved0 : 16;
94 /** \brief multi pred l0/1
95 * 0000: no internal MV predictor will be used
96 * 0001: spatial MV predictors
99 uint32_t multi_pred_l0 : 4;
100 uint32_t multi_pred_l1 : 4;
101 /** \brief defines the motion vector precision, like integer/half/quarter pel.
107 uint32_t sub_pel_mode : 2;
108 uint32_t adaptive_search : 1;
109 /** \brief mv_predictor_input
110 * 000: MV predictor disabled
111 * 001: MV predictor enabled per 16x16 block
112 * 010: MV predictor enabled per 32x32 block
113 * 011: MV predictor enabled per 64x64 block
114 * 111: MV predictor enabled, block size can vary and is determined by BlockSize in motion vector predictor buffer
115 * 100/101/110: Reserved
117 uint32_t mv_predictor_input : 3;
118 /** \brief enables per CTB or CU qp */
119 uint32_t per_block_qp : 1;
120 /** \brief enables the per CTB input , if 1, need ctb_ctrl to be a real surface ID*/
121 uint32_t per_ctb_input : 1;
122 /** when this flag is set, extra distortion between current CTB and co-located CTB is provided.
123 * Extra distortion output has performance impact, set it only when it is needed */
124 uint32_t colocated_ctb_distortion : 1;
125 /** brief specifies whether this CTB should be forced to split to remove Inter big LCU: do not check Inter 32x32
126 * PUs. Every 32x32 LCU is split at least once. It can be used to improved performance.
127 * 0: ENC determined block type
130 uint32_t force_lcu_split : 1;
131 /** \brief enables CU64x64 check */
132 uint32_t enable_cu64_check : 1;
133 /** \brief enables CU64x64 asymmetric motion partition check */
134 uint32_t enable_cu64_amp_check : 1;
135 /** \brief specifies if check the 64x64 merge candidate
136 * 0: after skip check,
137 * 1: only skip check for 64x64
138 Default: 0. This field is used by LCU64 bi-directional.
140 uint32_t cu64_skip_check_only : 1;
141 uint32_t reserved1 : 11;
142 /** specifies the search region width in pixels.
143 * When bidirectional search is enabled, this applies to both search regions */
144 uint32_t ref_width : 8;
145 /** specifies the reference region height in pixels. When bidirectional search is enabled,
146 * this applies to both search regions. */
147 uint32_t ref_height : 8;
148 /** \brief search window similar for AVC
149 * defines predefined search windows. If it is selected, RefWidth, RefHeight, LenSP and SearchPath are ignored.
150 * 0 : not use predefined search window
151 * 1 : Tiny – (4 SUs) 24x24 window diamond search
152 * 2 : Small – (9 SUs) 28x28 window diamond search
153 * 3 : Diamond – (16 SUs) 48x40 window diamond search
154 * 4 : Large Diamond – (32 SUs) 48x40 window diamond search
155 * 5 : Exhaustive – 48x40 window full search
156 * 6 : (64 SUs) 64x64 window full search
157 * Note: option 1, 2, 3 and 4 are valid only when CAP parameter SearchWindow64Support is 0.
158 * And option 6 is valid only when SearchWindow64Support is 1.*/
159 uint32_t search_window : 8;
160 /** \brief number of internal MV predictors for IME searches */
161 uint32_t max_num_ime_search_center : 3;
162 uint32_t reserved2 : 5;
164 /** \brief specifies number of splits that encoder could be run concurrently
165 * 1: level 1, default value
169 uint32_t num_concurrent_enc_frame_partition : 8;
170 uint32_t reserved3 : 24;
172 /** \brief max frame size control with multi passes QP setting */
173 uint32_t max_frame_size;
174 /** \brief number of passes, every pass has different QP */
176 /** \brief delta QP list for every pass */
179 uint32_t reserved4[2];
180 } VAEncMiscParameterFEIFrameControlHEVC;
182 /** \brief Application can use this definition as reference to allocate the buffer
183 * based on MaxNumPredictor returned from attribute VAConfigAttribFEIMVPredictors query.
184 * this buffer allocation is always based on 16x16 block even block size is indicated as 32x32 or 64x64, and buffer
185 * layout is always in 32x32 block raster scan order even block size is 16x16 or 64x64. If 32x32 block size is set,
186 * only the data in the first 16x16 block (block 0) is used for 32x32 block. If 64x64 block size is set
187 * MV layout is still in 32x32 raster scan order, the same as 32x32 and the first 16x16
188 * block within each 32x32 block needs to have intended MV data (four 32x32 blocks will have the same MV data in the
189 * correspondent first 16x16 block). Data structure for each 16x16 block is defined as below (same as AVC except
190 * BlockSize/Reserved bits).
192 typedef struct _VAEncFEIMVPredictorHEVC
194 /** \brief Feference index corresponding to the entry of RefPicList0 & RefPicList1 in slice header (final reference
195 * list). Note that RefPicList0 & RefPicList1 needs to be the same for all slices.
196 * Ref0xIndex – RefPicList0; Ref1xIndex – RefPicList1; x – 0 ~ MaxNumPredictor */
198 uint8_t ref_idx_l0 : 4;
199 uint8_t ref_idx_l1 : 4;
200 } ref_idx[4]; /* index is predictor number */
201 /** \brief Valid only when MVPredictor is set to 011 for HEVC. Only valid in the first 16x16 block.
202 * 00: MV predictor disabled for this 32x32 block
203 * 01: MV predictor enabled per 16x16 block for this 32x32 block
204 * 10: MV predictor enabled per 32x32 block, the rest of 16x16 block data within this 32x32 block are ignored
206 uint32_t block_size : 2;
207 uint32_t reserved : 30;
209 VAMotionVector mv[4]; /* MaxNumPredictor is 4 */
210 } VAEncFEIMVPredictorHEVC; //40 bytes
212 /** \brief FEI CTB level control data structure */
213 typedef struct _VAEncFEICTBControlHEVC
216 uint32_t force_to_intra : 1;
217 uint32_t force_to_inter : 1;
218 uint32_t force_to_skip : 1;
219 /** \brief force all coeff to zero */
220 uint32_t force_to_zero_coeff : 1;
221 uint32_t reserved0 : 28;
228 } VAEncFEICTBControlHEVC;
230 /** \brief VAEncFEIDistortionHevc defines the data structure for VAEncFEIDistortionBufferType per CTB block.
231 * It is output buffer of ENC and ENC_PAK modes, The CTB block is in raster scan order.
232 * Buffer size shall not be less than the number of CTB blocks multiple by sizeof(VAEncFEIDistortionHevc).
234 typedef struct _VAEncFEIDistortionHevc
236 /** best CTB distortion */
237 uint32_t best_distortion;
238 /** only when colocated_ctb_distortion in VAEncMiscParameterFEIFrameControlHEVC is set */
239 uint32_t colocated_ctb_distortion;
240 } VAEncFEIDistortionHevc;