2
* Copyright (c) 2014 Intel Corporation. All Rights Reserved.
4
* Permission is hereby granted, free of charge, to any person obtaining a
5
* copy of this software and associated documentation files (the
6
* "Software"), to deal in the Software without restriction, including
7
* without limitation the rights to use, copy, modify, merge, publish,
8
* distribute, sub license, and/or sell copies of the Software, and to
9
* permit persons to whom the Software is furnished to do so, subject to
10
* the following conditions:
12
* The above copyright notice and this permission notice (including the
13
* next paragraph) shall be included in all copies or substantial portions
16
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
19
* IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR
20
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
21
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
22
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27
* \brief The HEVC decoding API
29
* This file contains the \ref api_dec_hevc "HEVC decoding API".
42
* \defgroup api_dec_hevc HEVC decoding API
44
* This HEVC decoding API supports Main and Main Still Picture profiles.
45
* And it supports both short slice format and long slice format.
51
* \brief HEVC Decoding Picture Parameter Buffer Structure
53
* This structure conveys picture level parameters and should be sent once
57
typedef struct _VAPictureParameterBufferHEVC
59
/** \brief buffer description of decoded current picture
60
* only VA_PICTURE_HEVC_FIELD_PIC and VA_PICTURE_HEVC_BOTTOM_FIELD
61
* of "flags" fields are meaningful.
63
VAPictureHEVC CurrPic;
64
/** \brief buffer description of reference frames in DPB */
65
VAPictureHEVC ReferenceFrames[15];
66
/** \brief picture width, shall be integer multiple of minimum CB size. */
67
uint16_t pic_width_in_luma_samples;
68
/** \brief picture height, shall be integer multiple of minimum CB size. */
69
uint16_t pic_height_in_luma_samples;
76
/** following flags have same syntax and semantic as those in HEVC spec */
77
uint32_t chroma_format_idc : 2;
78
uint32_t separate_colour_plane_flag : 1;
79
uint32_t pcm_enabled_flag : 1;
80
uint32_t scaling_list_enabled_flag : 1;
81
uint32_t transform_skip_enabled_flag : 1;
82
uint32_t amp_enabled_flag : 1;
83
uint32_t strong_intra_smoothing_enabled_flag : 1;
84
uint32_t sign_data_hiding_enabled_flag : 1;
85
uint32_t constrained_intra_pred_flag : 1;
86
uint32_t cu_qp_delta_enabled_flag : 1;
87
uint32_t weighted_pred_flag : 1;
88
uint32_t weighted_bipred_flag : 1;
89
uint32_t transquant_bypass_enabled_flag : 1;
90
uint32_t tiles_enabled_flag : 1;
91
uint32_t entropy_coding_sync_enabled_flag : 1;
92
uint32_t pps_loop_filter_across_slices_enabled_flag : 1;
93
uint32_t loop_filter_across_tiles_enabled_flag : 1;
94
uint32_t pcm_loop_filter_disabled_flag : 1;
95
/** set based on sps_max_num_reorder_pics of current temporal layer. */
96
uint32_t NoPicReorderingFlag : 1;
97
/** picture has no B slices */
98
uint32_t NoBiPredFlag : 1;
100
uint32_t ReservedBits : 11;
105
/** following parameters have same syntax with those in HEVC spec */
106
/** \brief DPB size for current temporal layer */
107
uint8_t sps_max_dec_pic_buffering_minus1;
108
uint8_t bit_depth_luma_minus8;
109
uint8_t bit_depth_chroma_minus8;
110
uint8_t pcm_sample_bit_depth_luma_minus1;
111
uint8_t pcm_sample_bit_depth_chroma_minus1;
112
uint8_t log2_min_luma_coding_block_size_minus3;
113
uint8_t log2_diff_max_min_luma_coding_block_size;
114
uint8_t log2_min_transform_block_size_minus2;
115
uint8_t log2_diff_max_min_transform_block_size;
116
uint8_t log2_min_pcm_luma_coding_block_size_minus3;
117
uint8_t log2_diff_max_min_pcm_luma_coding_block_size;
118
uint8_t max_transform_hierarchy_depth_intra;
119
uint8_t max_transform_hierarchy_depth_inter;
120
int8_t init_qp_minus26;
121
uint8_t diff_cu_qp_delta_depth;
122
int8_t pps_cb_qp_offset;
123
int8_t pps_cr_qp_offset;
124
uint8_t log2_parallel_merge_level_minus2;
125
uint8_t num_tile_columns_minus1;
126
uint8_t num_tile_rows_minus1;
128
* when uniform_spacing_flag equals 1, application should populate
129
* column_width_minus[], and row_height_minus1[] with approperiate values.
131
uint16_t column_width_minus1[19];
132
uint16_t row_height_minus1[21];
135
* The Following Parameters are needed for Short Slice Format Only.
136
* Only format decoding can ignore them.
140
* \brief Parameters needed for parsing slice segment headers
146
/** following parameters have same syntax with those in HEVC spec */
147
uint32_t lists_modification_present_flag : 1;
148
uint32_t long_term_ref_pics_present_flag : 1;
149
uint32_t sps_temporal_mvp_enabled_flag : 1;
150
uint32_t cabac_init_present_flag : 1;
151
uint32_t output_flag_present_flag : 1;
152
uint32_t dependent_slice_segments_enabled_flag : 1;
153
uint32_t pps_slice_chroma_qp_offsets_present_flag : 1;
154
uint32_t sample_adaptive_offset_enabled_flag : 1;
155
uint32_t deblocking_filter_override_enabled_flag : 1;
156
uint32_t pps_disable_deblocking_filter_flag : 1;
157
uint32_t slice_segment_header_extension_present_flag : 1;
159
/** current picture with NUT between 16 and 21 inclusive */
160
uint32_t RapPicFlag : 1;
161
/** current picture with NUT between 19 and 20 inclusive */
162
uint32_t IdrPicFlag : 1;
163
/** current picture has only intra slices */
164
uint32_t IntraPicFlag : 1;
166
uint32_t ReservedBits : 18;
169
} slice_parsing_fields;
171
/** following parameters have same syntax with those in HEVC spec */
172
uint8_t log2_max_pic_order_cnt_lsb_minus4;
173
uint8_t num_short_term_ref_pic_sets;
174
uint8_t num_long_term_ref_pic_sps;
175
uint8_t num_ref_idx_l0_default_active_minus1;
176
uint8_t num_ref_idx_l1_default_active_minus1;
177
int8_t pps_beta_offset_div2;
178
int8_t pps_tc_offset_div2;
179
uint8_t num_extra_slice_header_bits;
182
* \brief number of bits that structure
183
* short_term_ref_pic_set( num_short_term_ref_pic_sets ) takes in slice
184
* segment header when short_term_ref_pic_set_sps_flag equals 0.
185
* if short_term_ref_pic_set_sps_flag equals 1, the value should be 0.
186
* the bit count is calculated after emulation prevention bytes are removed
188
* This variable is used for accelorater to skip parsing the
189
* short_term_ref_pic_set( num_short_term_ref_pic_sets ) structure.
191
uint32_t st_rps_bits;
193
} VAPictureParameterBufferHEVC;
198
* \brief HEVC Slice Parameter Buffer Structure For Short Format
200
* VASliceParameterBufferBaseHEVC structure should be accompanied by a
201
* slice data buffer, which holds the whole raw slice NAL unit bit streams
202
* including start code prefix and emulation prevention bytes not removed.
204
* This structure conveys parameters related to slice segment header and should
205
* be sent once per slice.
207
* For long format, this data structure is not sent by application.
210
typedef struct _VASliceParameterBufferBaseHEVC
212
/** @name Codec-independent Slice Parameter Buffer base. */
216
/** \brief Number of bytes in the slice data buffer for this slice
217
* counting from and including NAL unit header.
219
uint32_t slice_data_size;
220
/** \brief The offset to the NAL unit header for this slice */
221
uint32_t slice_data_offset;
222
/** \brief Slice data buffer flags. See \c VA_SLICE_DATA_FLAG_XXX. */
223
uint16_t slice_data_flag;
226
} VASliceParameterBufferBaseHEVC;
232
* \brief HEVC Slice Parameter Buffer Structure For Long Format
234
* VASliceParameterBufferHEVC structure should be accompanied by a
235
* slice data buffer, which holds the whole raw slice NAL unit bit streams
236
* including start code prefix and emulation prevention bytes not removed.
238
* This structure conveys parameters related to slice segment header and should
239
* be sent once per slice.
241
* For short format, this data structure is not sent by application.
244
typedef struct _VASliceParameterBufferHEVC
246
/** @name Codec-independent Slice Parameter Buffer base. */
250
/** \brief Number of bytes in the slice data buffer for this slice
251
* counting from and including NAL unit header.
253
uint32_t slice_data_size;
254
/** \brief The offset to the NAL unit header for this slice */
255
uint32_t slice_data_offset;
256
/** \brief Slice data buffer flags. See \c VA_SLICE_DATA_FLAG_XXX. */
257
uint16_t slice_data_flag;
259
* \brief Byte offset from NAL unit header to the begining of slice_data().
261
* This byte offset is relative to and includes the NAL unit header
262
* and represents the number of bytes parsed in the slice_header()
263
* after the removal of any emulation prevention bytes in
264
* there. However, the slice data buffer passed to the hardware is
265
* the original bitstream, thus including any emulation prevention
268
uint32_t slice_data_byte_offset;
269
/** HEVC syntax element. */
270
uint32_t slice_segment_address;
271
/** \brief index into ReferenceFrames[]
272
* RefPicList[0][] corresponds to RefPicList0[] of HEVC variable.
273
* RefPicList[1][] corresponds to RefPicList1[] of HEVC variable.
274
* value range [0..14, 0xFF], where 0xFF indicates invalid entry.
276
uint8_t RefPicList[2][15];
282
/** current slice is last slice of picture. */
283
uint32_t LastSliceOfPic : 1;
284
/** HEVC syntax element. */
285
uint32_t dependent_slice_segment_flag : 1;
286
/** HEVC syntax element. */
287
uint32_t slice_type : 2;
288
/** HEVC syntax element. */
289
uint32_t color_plane_id : 2;
290
/** HEVC syntax element. */
291
uint32_t slice_sao_luma_flag : 1;
292
/** HEVC syntax element. */
293
uint32_t slice_sao_chroma_flag : 1;
294
/** HEVC syntax element. */
295
uint32_t mvd_l1_zero_flag : 1;
296
/** HEVC syntax element. */
297
uint32_t cabac_init_flag : 1;
298
/** HEVC syntax element. */
299
uint32_t slice_temporal_mvp_enabled_flag : 1;
300
/** HEVC syntax element. */
301
uint32_t slice_deblocking_filter_disabled_flag : 1;
302
/** HEVC syntax element. */
303
uint32_t collocated_from_l0_flag : 1;
304
/** HEVC syntax element. */
305
uint32_t slice_loop_filter_across_slices_enabled_flag : 1;
306
uint32_t reserved : 18;
310
/** HEVC syntax element. Collocated Reference Picture Index.
311
* index to RefPicList[0][] or RefPicList[1][].
312
* when slice_temporal_mvp_enabled_flag equals 0, it should take value 0xFF.
313
* value range [0..14, 0xFF].
315
uint8_t collocated_ref_idx;
316
/** HEVC syntax element.
317
* if num_ref_idx_active_override_flag equals 0, host decoder should
318
* set its value to num_ref_idx_l0_default_minus1.
320
uint8_t num_ref_idx_l0_active_minus1;
321
/** HEVC syntax element.
322
* if num_ref_idx_active_override_flag equals 0, host decoder should
323
* set its value to num_ref_idx_l1_default_minus1.
325
uint8_t num_ref_idx_l1_active_minus1;
326
/** HEVC syntax element. */
327
int8_t slice_qp_delta;
328
/** HEVC syntax element. */
329
int8_t slice_cb_qp_offset;
330
/** HEVC syntax element. */
331
int8_t slice_cr_qp_offset;
332
/** HEVC syntax element. */
333
int8_t slice_beta_offset_div2;
334
/** HEVC syntax element. */
335
int8_t slice_tc_offset_div2;
336
/** HEVC syntax element. */
337
uint8_t luma_log2_weight_denom;
338
/** HEVC syntax element. */
339
int8_t delta_chroma_log2_weight_denom;
340
/** HEVC syntax element. */
341
int8_t delta_luma_weight_l0[15];
342
/** HEVC syntax element. */
343
int8_t luma_offset_l0[15];
344
/** HEVC syntax element. */
345
int8_t delta_chroma_weight_l0[15][2];
346
/** corresponds to HEVC spec variable of the same name. */
347
int8_t ChromaOffsetL0[15][2];
348
/** HEVC syntax element. */
349
int8_t delta_luma_weight_l1[15];
350
/** HEVC syntax element. */
351
int8_t luma_offset_l1[15];
352
/** HEVC syntax element. */
353
int8_t delta_chroma_weight_l1[15][2];
354
/** corresponds to HEVC spec variable of the same name. */
355
int8_t ChromaOffsetL1[15][2];
356
/** HEVC syntax element. */
357
uint8_t five_minus_max_num_merge_cand;
360
} VASliceParameterBufferHEVC;
365
* \brief HEVC Inverse Quantization Matrix Buffer Structure
367
* This structure is sent once per frame,
368
* and only when scaling_list_enabled_flag = 1.
369
* When sps_scaling_list_data_present_flag = 0, app still
370
* needs to send in this structure with default matrix values.
372
* Matrix entries are in raster scan order which follows HEVC spec.
374
typedef struct _VAIQMatrixBufferHEVC
377
* \brief scaling lists,
378
* corresponds to same HEVC spec syntax element
379
* ScalingList[ i ][ MatrixID ][ j ].
381
* \brief 4x4 scaling,
382
* correspongs i = 0, MatrixID is in the range of 0 to 5,
383
* inclusive. And j is in the range of 0 to 15, inclusive.
385
uint8_t ScalingList4x4[6][16];
387
* \brief 8x8 scaling,
388
* correspongs i = 1, MatrixID is in the range of 0 to 5,
389
* inclusive. And j is in the range of 0 to 63, inclusive.
391
uint8_t ScalingList8x8[6][64];
393
* \brief 16x16 scaling,
394
* correspongs i = 2, MatrixID is in the range of 0 to 5,
395
* inclusive. And j is in the range of 0 to 63, inclusive.
397
uint8_t ScalingList16x16[6][64];
399
* \brief 32x32 scaling,
400
* correspongs i = 3, MatrixID is in the range of 0 to 1,
401
* inclusive. And j is in the range of 0 to 63, inclusive.
403
uint8_t ScalingList32x32[2][64];
405
* \brief DC values of the 16x16 scaling lists,
406
* corresponds to HEVC spec syntax
407
* scaling_list_dc_coef_minus8[ sizeID - 2 ][ matrixID ] + 8
408
* with sizeID = 2 and matrixID in the range of 0 to 5, inclusive.
410
uint8_t ScalingListDC16x16[6];
412
* \brief DC values of the 32x32 scaling lists,
413
* corresponds to HEVC spec syntax
414
* scaling_list_dc_coef_minus8[ sizeID - 2 ][ matrixID ] + 8
415
* with sizeID = 3 and matrixID in the range of 0 to 1, inclusive.
417
uint8_t ScalingListDC32x32[2];
418
} VAIQMatrixBufferHEVC;
427
#endif /* VA_DEC_HEVC_H */
added
removed
va/va_dec_hevc.h
