1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef VP9_COMMON_VP9_ONYXC_INT_H_ 12 #define VP9_COMMON_VP9_ONYXC_INT_H_ 13 14 #include "./vpx_config.h" 15 #include "vpx/internal/vpx_codec_internal.h" 16 #include "./vp9_rtcd.h" 17 #include "vp9/common/vp9_loopfilter.h" 18 #include "vp9/common/vp9_entropymv.h" 19 #include "vp9/common/vp9_entropy.h" 20 #include "vp9/common/vp9_entropymode.h" 21 #include "vp9/common/vp9_frame_buffers.h" 22 #include "vp9/common/vp9_quant_common.h" 23 #include "vp9/common/vp9_tile_common.h" 24 25 #if CONFIG_VP9_POSTPROC 26 #include "vp9/common/vp9_postproc.h" 27 #endif 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 #define REFS_PER_FRAME 3 34 35 #define REF_FRAMES_LOG2 3 36 #define REF_FRAMES (1 << REF_FRAMES_LOG2) 37 38 // 1 scratch frame for the new frame, 3 for scaled references on the encoder 39 // TODO(jkoleszar): These 3 extra references could probably come from the 40 // normal reference pool. 41 #define FRAME_BUFFERS (REF_FRAMES + 4) 42 43 #define FRAME_CONTEXTS_LOG2 2 44 #define FRAME_CONTEXTS (1 << FRAME_CONTEXTS_LOG2) 45 46 extern const struct { 47 PARTITION_CONTEXT above; 48 PARTITION_CONTEXT left; 49 } partition_context_lookup[BLOCK_SIZES]; 50 51 52 typedef enum { 53 SINGLE_REFERENCE = 0, 54 COMPOUND_REFERENCE = 1, 55 REFERENCE_MODE_SELECT = 2, 56 REFERENCE_MODES = 3, 57 } REFERENCE_MODE; 58 59 60 typedef struct { 61 int ref_count; 62 vpx_codec_frame_buffer_t raw_frame_buffer; 63 YV12_BUFFER_CONFIG buf; 64 } RefCntBuffer; 65 66 typedef struct VP9Common { 67 struct vpx_internal_error_info error; 68 69 DECLARE_ALIGNED(16, int16_t, y_dequant[QINDEX_RANGE][8]); 70 DECLARE_ALIGNED(16, int16_t, uv_dequant[QINDEX_RANGE][8]); 71 #if CONFIG_ALPHA 72 DECLARE_ALIGNED(16, int16_t, a_dequant[QINDEX_RANGE][8]); 73 #endif 74 75 COLOR_SPACE color_space; 76 77 int width; 78 int height; 79 int display_width; 80 int display_height; 81 int last_width; 82 int last_height; 83 84 // TODO(jkoleszar): this implies chroma ss right now, but could vary per 85 // plane. Revisit as part of the future change to YV12_BUFFER_CONFIG to 86 // support additional planes. 87 int subsampling_x; 88 int subsampling_y; 89 90 YV12_BUFFER_CONFIG *frame_to_show; 91 92 RefCntBuffer frame_bufs[FRAME_BUFFERS]; 93 94 int ref_frame_map[REF_FRAMES]; /* maps fb_idx to reference slot */ 95 96 // TODO(jkoleszar): could expand active_ref_idx to 4, with 0 as intra, and 97 // roll new_fb_idx into it. 98 99 // Each frame can reference REFS_PER_FRAME buffers 100 RefBuffer frame_refs[REFS_PER_FRAME]; 101 102 int new_fb_idx; 103 104 YV12_BUFFER_CONFIG post_proc_buffer; 105 106 FRAME_TYPE last_frame_type; /* last frame's frame type for motion search.*/ 107 FRAME_TYPE frame_type; 108 109 int show_frame; 110 int last_show_frame; 111 int show_existing_frame; 112 113 // Flag signaling that the frame is encoded using only INTRA modes. 114 int intra_only; 115 116 int allow_high_precision_mv; 117 118 // Flag signaling that the frame context should be reset to default values. 119 // 0 or 1 implies don't reset, 2 reset just the context specified in the 120 // frame header, 3 reset all contexts. 121 int reset_frame_context; 122 123 int frame_flags; 124 // MBs, mb_rows/cols is in 16-pixel units; mi_rows/cols is in 125 // MODE_INFO (8-pixel) units. 126 int MBs; 127 int mb_rows, mi_rows; 128 int mb_cols, mi_cols; 129 int mi_stride; 130 131 /* profile settings */ 132 TX_MODE tx_mode; 133 134 int base_qindex; 135 int y_dc_delta_q; 136 int uv_dc_delta_q; 137 int uv_ac_delta_q; 138 #if CONFIG_ALPHA 139 int a_dc_delta_q; 140 int a_ac_delta_q; 141 #endif 142 143 /* We allocate a MODE_INFO struct for each macroblock, together with 144 an extra row on top and column on the left to simplify prediction. */ 145 146 MODE_INFO *mip; /* Base of allocated array */ 147 MODE_INFO *mi; /* Corresponds to upper left visible macroblock */ 148 MODE_INFO *prev_mip; /* MODE_INFO array 'mip' from last decoded frame */ 149 MODE_INFO *prev_mi; /* 'mi' from last frame (points into prev_mip) */ 150 151 MODE_INFO **mi_grid_base; 152 MODE_INFO **mi_grid_visible; 153 MODE_INFO **prev_mi_grid_base; 154 MODE_INFO **prev_mi_grid_visible; 155 156 // Persistent mb segment id map used in prediction. 157 unsigned char *last_frame_seg_map; 158 159 INTERP_FILTER interp_filter; 160 161 loop_filter_info_n lf_info; 162 163 int refresh_frame_context; /* Two state 0 = NO, 1 = YES */ 164 165 int ref_frame_sign_bias[MAX_REF_FRAMES]; /* Two state 0, 1 */ 166 167 struct loopfilter lf; 168 struct segmentation seg; 169 170 // Context probabilities for reference frame prediction 171 int allow_comp_inter_inter; 172 MV_REFERENCE_FRAME comp_fixed_ref; 173 MV_REFERENCE_FRAME comp_var_ref[2]; 174 REFERENCE_MODE reference_mode; 175 176 FRAME_CONTEXT fc; /* this frame entropy */ 177 FRAME_CONTEXT frame_contexts[FRAME_CONTEXTS]; 178 unsigned int frame_context_idx; /* Context to use/update */ 179 FRAME_COUNTS counts; 180 181 unsigned int current_video_frame; 182 int version; 183 184 #if CONFIG_VP9_POSTPROC 185 struct postproc_state postproc_state; 186 #endif 187 188 int error_resilient_mode; 189 int frame_parallel_decoding_mode; 190 191 // Flag indicates if prev_mi can be used in coding: 192 // 0: encoder assumes decoder does not have prev_mi 193 // 1: encoder assumes decoder has and uses prev_mi 194 unsigned int coding_use_prev_mi; 195 196 int log2_tile_cols, log2_tile_rows; 197 198 // Private data associated with the frame buffer callbacks. 199 void *cb_priv; 200 vpx_get_frame_buffer_cb_fn_t get_fb_cb; 201 vpx_release_frame_buffer_cb_fn_t release_fb_cb; 202 203 // Handles memory for the codec. 204 InternalFrameBufferList int_frame_buffers; 205 206 PARTITION_CONTEXT *above_seg_context; 207 ENTROPY_CONTEXT *above_context; 208 } VP9_COMMON; 209 210 static INLINE YV12_BUFFER_CONFIG *get_frame_new_buffer(VP9_COMMON *cm) { 211 return &cm->frame_bufs[cm->new_fb_idx].buf; 212 } 213 214 static INLINE int get_free_fb(VP9_COMMON *cm) { 215 int i; 216 for (i = 0; i < FRAME_BUFFERS; i++) 217 if (cm->frame_bufs[i].ref_count == 0) 218 break; 219 220 assert(i < FRAME_BUFFERS); 221 cm->frame_bufs[i].ref_count = 1; 222 return i; 223 } 224 225 static INLINE void ref_cnt_fb(RefCntBuffer *bufs, int *idx, int new_idx) { 226 const int ref_index = *idx; 227 228 if (ref_index >= 0 && bufs[ref_index].ref_count > 0) 229 bufs[ref_index].ref_count--; 230 231 *idx = new_idx; 232 233 bufs[new_idx].ref_count++; 234 } 235 236 static INLINE int mi_cols_aligned_to_sb(int n_mis) { 237 return ALIGN_POWER_OF_TWO(n_mis, MI_BLOCK_SIZE_LOG2); 238 } 239 240 static INLINE void init_macroblockd(VP9_COMMON *cm, MACROBLOCKD *xd) { 241 int i; 242 243 for (i = 0; i < MAX_MB_PLANE; ++i) { 244 xd->plane[i].dqcoeff = xd->dqcoeff[i]; 245 xd->above_context[i] = cm->above_context + 246 i * sizeof(*cm->above_context) * 2 * mi_cols_aligned_to_sb(cm->mi_cols); 247 } 248 249 xd->above_seg_context = cm->above_seg_context; 250 xd->mi_stride = cm->mi_stride; 251 } 252 253 static INLINE const vp9_prob* get_partition_probs(const VP9_COMMON *cm, 254 int ctx) { 255 return cm->frame_type == KEY_FRAME ? vp9_kf_partition_probs[ctx] 256 : cm->fc.partition_prob[ctx]; 257 } 258 259 static INLINE void set_skip_context(MACROBLOCKD *xd, int mi_row, int mi_col) { 260 const int above_idx = mi_col * 2; 261 const int left_idx = (mi_row * 2) & 15; 262 int i; 263 for (i = 0; i < MAX_MB_PLANE; ++i) { 264 struct macroblockd_plane *const pd = &xd->plane[i]; 265 pd->above_context = &xd->above_context[i][above_idx >> pd->subsampling_x]; 266 pd->left_context = &xd->left_context[i][left_idx >> pd->subsampling_y]; 267 } 268 } 269 270 static INLINE void set_mi_row_col(MACROBLOCKD *xd, const TileInfo *const tile, 271 int mi_row, int bh, 272 int mi_col, int bw, 273 int mi_rows, int mi_cols) { 274 xd->mb_to_top_edge = -((mi_row * MI_SIZE) * 8); 275 xd->mb_to_bottom_edge = ((mi_rows - bh - mi_row) * MI_SIZE) * 8; 276 xd->mb_to_left_edge = -((mi_col * MI_SIZE) * 8); 277 xd->mb_to_right_edge = ((mi_cols - bw - mi_col) * MI_SIZE) * 8; 278 279 // Are edges available for intra prediction? 280 xd->up_available = (mi_row != 0); 281 xd->left_available = (mi_col > tile->mi_col_start); 282 } 283 284 static INLINE void set_prev_mi(VP9_COMMON *cm) { 285 const int use_prev_in_find_mv_refs = cm->width == cm->last_width && 286 cm->height == cm->last_height && 287 !cm->intra_only && 288 cm->last_show_frame; 289 // Special case: set prev_mi to NULL when the previous mode info 290 // context cannot be used. 291 cm->prev_mi = use_prev_in_find_mv_refs ? 292 cm->prev_mip + cm->mi_stride + 1 : NULL; 293 } 294 295 static INLINE int frame_is_intra_only(const VP9_COMMON *const cm) { 296 return cm->frame_type == KEY_FRAME || cm->intra_only; 297 } 298 299 static INLINE void update_partition_context(MACROBLOCKD *xd, 300 int mi_row, int mi_col, 301 BLOCK_SIZE subsize, 302 BLOCK_SIZE bsize) { 303 PARTITION_CONTEXT *const above_ctx = xd->above_seg_context + mi_col; 304 PARTITION_CONTEXT *const left_ctx = xd->left_seg_context + (mi_row & MI_MASK); 305 306 // num_4x4_blocks_wide_lookup[bsize] / 2 307 const int bs = num_8x8_blocks_wide_lookup[bsize]; 308 309 // update the partition context at the end notes. set partition bits 310 // of block sizes larger than the current one to be one, and partition 311 // bits of smaller block sizes to be zero. 312 vpx_memset(above_ctx, partition_context_lookup[subsize].above, bs); 313 vpx_memset(left_ctx, partition_context_lookup[subsize].left, bs); 314 } 315 316 static INLINE int partition_plane_context(const MACROBLOCKD *xd, 317 int mi_row, int mi_col, 318 BLOCK_SIZE bsize) { 319 const PARTITION_CONTEXT *above_ctx = xd->above_seg_context + mi_col; 320 const PARTITION_CONTEXT *left_ctx = xd->left_seg_context + (mi_row & MI_MASK); 321 322 const int bsl = mi_width_log2(bsize); 323 const int bs = 1 << bsl; 324 int above = 0, left = 0, i; 325 326 assert(b_width_log2(bsize) == b_height_log2(bsize)); 327 assert(bsl >= 0); 328 329 for (i = 0; i < bs; i++) { 330 above |= above_ctx[i]; 331 left |= left_ctx[i]; 332 } 333 above = (above & bs) > 0; 334 left = (left & bs) > 0; 335 336 return (left * 2 + above) + bsl * PARTITION_PLOFFSET; 337 } 338 339 #ifdef __cplusplus 340 } // extern "C" 341 #endif 342 343 #endif // VP9_COMMON_VP9_ONYXC_INT_H_ 344
