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
30extern "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
46extern const struct {
47  PARTITION_CONTEXT above;
48  PARTITION_CONTEXT left;
49} partition_context_lookup[BLOCK_SIZES];
50
51
52typedef enum {
53  SINGLE_REFERENCE      = 0,
54  COMPOUND_REFERENCE    = 1,
55  REFERENCE_MODE_SELECT = 2,
56  REFERENCE_MODES       = 3,
57} REFERENCE_MODE;
58
59
60typedef struct {
61  int ref_count;
62  vpx_codec_frame_buffer_t raw_frame_buffer;
63  YV12_BUFFER_CONFIG buf;
64} RefCntBuffer;
65
66typedef 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  BITSTREAM_PROFILE profile;
183
184  // BITS_8 in versions 0 and 1, BITS_10 or BITS_12 in version 2
185  BIT_DEPTH bit_depth;
186
187#if CONFIG_VP9_POSTPROC
188  struct postproc_state  postproc_state;
189#endif
190
191  int error_resilient_mode;
192  int frame_parallel_decoding_mode;
193
194  // Flag indicates if prev_mi can be used in coding:
195  //   0: encoder assumes decoder does not have prev_mi
196  //   1: encoder assumes decoder has and uses prev_mi
197  unsigned int coding_use_prev_mi;
198
199  int log2_tile_cols, log2_tile_rows;
200
201  // Private data associated with the frame buffer callbacks.
202  void *cb_priv;
203  vpx_get_frame_buffer_cb_fn_t get_fb_cb;
204  vpx_release_frame_buffer_cb_fn_t release_fb_cb;
205
206  // Handles memory for the codec.
207  InternalFrameBufferList int_frame_buffers;
208
209  PARTITION_CONTEXT *above_seg_context;
210  ENTROPY_CONTEXT *above_context;
211} VP9_COMMON;
212
213static INLINE YV12_BUFFER_CONFIG *get_frame_new_buffer(VP9_COMMON *cm) {
214  return &cm->frame_bufs[cm->new_fb_idx].buf;
215}
216
217static INLINE int get_free_fb(VP9_COMMON *cm) {
218  int i;
219  for (i = 0; i < FRAME_BUFFERS; i++)
220    if (cm->frame_bufs[i].ref_count == 0)
221      break;
222
223  assert(i < FRAME_BUFFERS);
224  cm->frame_bufs[i].ref_count = 1;
225  return i;
226}
227
228static INLINE void ref_cnt_fb(RefCntBuffer *bufs, int *idx, int new_idx) {
229  const int ref_index = *idx;
230
231  if (ref_index >= 0 && bufs[ref_index].ref_count > 0)
232    bufs[ref_index].ref_count--;
233
234  *idx = new_idx;
235
236  bufs[new_idx].ref_count++;
237}
238
239static INLINE int mi_cols_aligned_to_sb(int n_mis) {
240  return ALIGN_POWER_OF_TWO(n_mis, MI_BLOCK_SIZE_LOG2);
241}
242
243static INLINE void init_macroblockd(VP9_COMMON *cm, MACROBLOCKD *xd) {
244  int i;
245
246  for (i = 0; i < MAX_MB_PLANE; ++i) {
247    xd->plane[i].dqcoeff = xd->dqcoeff[i];
248    xd->above_context[i] = cm->above_context +
249        i * sizeof(*cm->above_context) * 2 * mi_cols_aligned_to_sb(cm->mi_cols);
250  }
251
252  xd->above_seg_context = cm->above_seg_context;
253  xd->mi_stride = cm->mi_stride;
254}
255
256static INLINE const vp9_prob* get_partition_probs(const VP9_COMMON *cm,
257                                                  int ctx) {
258  return cm->frame_type == KEY_FRAME ? vp9_kf_partition_probs[ctx]
259                                     : cm->fc.partition_prob[ctx];
260}
261
262static INLINE void set_skip_context(MACROBLOCKD *xd, int mi_row, int mi_col) {
263  const int above_idx = mi_col * 2;
264  const int left_idx = (mi_row * 2) & 15;
265  int i;
266  for (i = 0; i < MAX_MB_PLANE; ++i) {
267    struct macroblockd_plane *const pd = &xd->plane[i];
268    pd->above_context = &xd->above_context[i][above_idx >> pd->subsampling_x];
269    pd->left_context = &xd->left_context[i][left_idx >> pd->subsampling_y];
270  }
271}
272
273static INLINE void set_mi_row_col(MACROBLOCKD *xd, const TileInfo *const tile,
274                                  int mi_row, int bh,
275                                  int mi_col, int bw,
276                                  int mi_rows, int mi_cols) {
277  xd->mb_to_top_edge    = -((mi_row * MI_SIZE) * 8);
278  xd->mb_to_bottom_edge = ((mi_rows - bh - mi_row) * MI_SIZE) * 8;
279  xd->mb_to_left_edge   = -((mi_col * MI_SIZE) * 8);
280  xd->mb_to_right_edge  = ((mi_cols - bw - mi_col) * MI_SIZE) * 8;
281
282  // Are edges available for intra prediction?
283  xd->up_available    = (mi_row != 0);
284  xd->left_available  = (mi_col > tile->mi_col_start);
285}
286
287static INLINE MODE_INFO *get_prev_mi(VP9_COMMON *cm) {
288  const int use_prev_mi = cm->coding_use_prev_mi &&
289                          cm->width == cm->last_width &&
290                          cm->height == cm->last_height &&
291                          !cm->intra_only &&
292                          cm->last_show_frame;
293  // Special case: set prev_mi to NULL when the previous mode info
294  // context cannot be used.
295  return use_prev_mi ? &cm->prev_mip[cm->mi_stride + 1] : NULL;
296}
297
298static INLINE int frame_is_intra_only(const VP9_COMMON *const cm) {
299  return cm->frame_type == KEY_FRAME || cm->intra_only;
300}
301
302static INLINE void update_partition_context(MACROBLOCKD *xd,
303                                            int mi_row, int mi_col,
304                                            BLOCK_SIZE subsize,
305                                            BLOCK_SIZE bsize) {
306  PARTITION_CONTEXT *const above_ctx = xd->above_seg_context + mi_col;
307  PARTITION_CONTEXT *const left_ctx = xd->left_seg_context + (mi_row & MI_MASK);
308
309  // num_4x4_blocks_wide_lookup[bsize] / 2
310  const int bs = num_8x8_blocks_wide_lookup[bsize];
311
312  // update the partition context at the end notes. set partition bits
313  // of block sizes larger than the current one to be one, and partition
314  // bits of smaller block sizes to be zero.
315  vpx_memset(above_ctx, partition_context_lookup[subsize].above, bs);
316  vpx_memset(left_ctx, partition_context_lookup[subsize].left, bs);
317}
318
319static INLINE int partition_plane_context(const MACROBLOCKD *xd,
320                                          int mi_row, int mi_col,
321                                          BLOCK_SIZE bsize) {
322  const PARTITION_CONTEXT *above_ctx = xd->above_seg_context + mi_col;
323  const PARTITION_CONTEXT *left_ctx = xd->left_seg_context + (mi_row & MI_MASK);
324
325  const int bsl = mi_width_log2(bsize);
326  const int bs = 1 << bsl;
327  int above = 0, left = 0, i;
328
329  assert(b_width_log2(bsize) == b_height_log2(bsize));
330  assert(bsl >= 0);
331
332  for (i = 0; i < bs; i++) {
333    above |= above_ctx[i];
334    left |= left_ctx[i];
335  }
336  above = (above & bs) > 0;
337  left  = (left & bs) > 0;
338
339  return (left * 2 + above) + bsl * PARTITION_PLOFFSET;
340}
341
342#ifdef __cplusplus
343}  // extern "C"
344#endif
345
346#endif  // VP9_COMMON_VP9_ONYXC_INT_H_
347