VA-API  2.19.0
va_dec_vp8.h
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2007-2012 Intel Corporation. All Rights Reserved.
3  *
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:
11  *
12  * The above copyright notice and this permission notice (including the
13  * next paragraph) shall be included in all copies or substantial portions
14  * of the Software.
15  *
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.
23  */
24 
32 #ifndef VA_DEC_VP8_H
33 #define VA_DEC_VP8_H
34 
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38 
51 typedef struct _VABoolCoderContextVPX {
52  /* partition 0 "range" */
53  uint8_t range;
54  /* partition 0 "value" */
55  uint8_t value;
56  /*
57  * 'partition 0 number of shifts before an output byte is available'
58  * it is the number of remaining bits in 'value' for decoding, range [0, 7].
59  */
60 
61  uint8_t count;
63 
71 typedef struct _VAPictureParameterBufferVP8 {
72  /* frame width in pixels */
73  uint32_t frame_width;
74  /* frame height in pixels */
75  uint32_t frame_height;
76 
77  /* specifies the "last" reference frame */
78  VASurfaceID last_ref_frame;
79  /* specifies the "golden" reference frame */
80  VASurfaceID golden_ref_frame;
81  /* specifies the "alternate" referrence frame */
82  VASurfaceID alt_ref_frame;
83  /* specifies the out-of-loop deblocked frame, not used currently */
84  VASurfaceID out_of_loop_frame;
85 
86  union {
87  struct {
88  /* same as key_frame in bitstream syntax, 0 means a key frame */
89  uint32_t key_frame : 1;
90  /* same as version in bitstream syntax */
91  uint32_t version : 3;
92  /* same as segmentation_enabled in bitstream syntax */
93  uint32_t segmentation_enabled : 1;
94  /* same as update_mb_segmentation_map in bitstream syntax */
95  uint32_t update_mb_segmentation_map : 1;
96  /* same as update_segment_feature_data in bitstream syntax */
97  uint32_t update_segment_feature_data : 1;
98  /* same as filter_type in bitstream syntax */
99  uint32_t filter_type : 1;
100  /* same as sharpness_level in bitstream syntax */
101  uint32_t sharpness_level : 3;
102  /* same as loop_filter_adj_enable in bitstream syntax */
103  uint32_t loop_filter_adj_enable : 1;
104  /* same as mode_ref_lf_delta_update in bitstream syntax */
105  uint32_t mode_ref_lf_delta_update : 1;
106  /* same as sign_bias_golden in bitstream syntax */
107  uint32_t sign_bias_golden : 1;
108  /* same as sign_bias_alternate in bitstream syntax */
109  uint32_t sign_bias_alternate : 1;
110  /* same as mb_no_coeff_skip in bitstream syntax */
111  uint32_t mb_no_coeff_skip : 1;
112  /* flag to indicate that loop filter should be disabled */
113  uint32_t loop_filter_disable : 1;
114  } bits;
115  uint32_t value;
116  } pic_fields;
117 
118  /*
119  * probabilities of the segment_id decoding tree and same as
120  * mb_segment_tree_probs in the spec.
121  */
122  uint8_t mb_segment_tree_probs[3];
123 
124  /* Post-adjustment loop filter levels for the 4 segments */
125  uint8_t loop_filter_level[4];
126  /* loop filter deltas for reference frame based MB level adjustment */
127  int8_t loop_filter_deltas_ref_frame[4];
128  /* loop filter deltas for coding mode based MB level adjustment */
129  int8_t loop_filter_deltas_mode[4];
130 
131  /* same as prob_skip_false in bitstream syntax */
132  uint8_t prob_skip_false;
133  /* same as prob_intra in bitstream syntax */
134  uint8_t prob_intra;
135  /* same as prob_last in bitstream syntax */
136  uint8_t prob_last;
137  /* same as prob_gf in bitstream syntax */
138  uint8_t prob_gf;
139 
140  /*
141  * list of 4 probabilities of the luma intra prediction mode decoding
142  * tree and same as y_mode_probs in frame header
143  */
144  uint8_t y_mode_probs[4];
145  /*
146  * list of 3 probabilities of the chroma intra prediction mode decoding
147  * tree and same as uv_mode_probs in frame header
148  */
149  uint8_t uv_mode_probs[3];
150  /*
151  * updated mv decoding probabilities and same as mv_probs in
152  * frame header
153  */
154  uint8_t mv_probs[2][19];
155 
156  VABoolCoderContextVPX bool_coder_ctx;
157 
159  uint32_t va_reserved[VA_PADDING_LOW];
161 
170 typedef struct _VASliceParameterBufferVP8 {
171  /*
172  * number of bytes in the slice data buffer for the partitions
173  */
174  uint32_t slice_data_size;
175  /*
176  * offset to the first byte of partition data (control partition)
177  */
178  uint32_t slice_data_offset;
179  /*
180  * see VA_SLICE_DATA_FLAG_XXX definitions
181  */
182  uint32_t slice_data_flag;
183  /*
184  * offset to the first bit of MB from the first byte of partition data(slice_data_offset)
185  */
186  uint32_t macroblock_offset;
187 
188  /*
189  * Partitions
190  * (1<<log2_nbr_of_dct_partitions)+1, count both control partition (frame header) and toke partition
191  */
192  uint8_t num_of_partitions;
193  /*
194  * partition_size[0] is remaining bytes of control partition after parsed by application.
195  * exclude current byte for the remaining bits in bool_coder_ctx.
196  * exclude the uncompress data chunk since first_part_size 'excluding the uncompressed data chunk'
197  */
198  uint32_t partition_size[9];
199 
201  uint32_t va_reserved[VA_PADDING_LOW];
203 
218 typedef struct _VAProbabilityDataBufferVP8 {
219  uint8_t dct_coeff_probs[4][8][3][11];
220 
222  uint32_t va_reserved[VA_PADDING_LOW];
224 
232 typedef struct _VAIQMatrixBufferVP8 {
233  /*
234  * array first dimensional is segment and 2nd dimensional is Q index
235  * all Q indexs should be clipped to be range [0, 127]
236  */
237  uint16_t quantization_index[4][6];
238 
240  uint32_t va_reserved[VA_PADDING_LOW];
242 
245 #ifdef __cplusplus
246 }
247 #endif
248 
249 #endif /* VA_DEC_VP8_H */
VP8 Inverse Quantization Matrix Buffer Structure.
Definition: va_dec_vp8.h:232
VPX Bool Coder Context structure.
Definition: va_dec_vp8.h:51
VP8 Decoding Picture Parameter Buffer Structure.
Definition: va_dec_vp8.h:71
VP8 Coefficient Probability Data Buffer Structure.
Definition: va_dec_vp8.h:218
#define VA_PADDING_LOW
Definition: va.h:359
VP8 Slice Parameter Buffer Structure.
Definition: va_dec_vp8.h:170