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
72  COLOR_SPACE color_space;
73
74  int width;
75  int height;
76  int display_width;
77  int display_height;
78  int last_width;
79  int last_height;
80
81  // TODO(jkoleszar): this implies chroma ss right now, but could vary per
82  // plane. Revisit as part of the future change to YV12_BUFFER_CONFIG to
83  // support additional planes.
84  int subsampling_x;
85  int subsampling_y;
86
87#if CONFIG_VP9_HIGHBITDEPTH
88  int use_highbitdepth;  // Marks if we need to use 16bit frame buffers.
89#endif
90
91  YV12_BUFFER_CONFIG *frame_to_show;
92
93  RefCntBuffer frame_bufs[FRAME_BUFFERS];
94
95  int ref_frame_map[REF_FRAMES]; /* maps fb_idx to reference slot */
96
97  // TODO(jkoleszar): could expand active_ref_idx to 4, with 0 as intra, and
98  // roll new_fb_idx into it.
99
100  // Each frame can reference REFS_PER_FRAME buffers
101  RefBuffer frame_refs[REFS_PER_FRAME];
102
103  int new_fb_idx;
104
105  YV12_BUFFER_CONFIG post_proc_buffer;
106
107  FRAME_TYPE last_frame_type;  /* last frame's frame type for motion search.*/
108  FRAME_TYPE frame_type;
109
110  int show_frame;
111  int last_show_frame;
112  int show_existing_frame;
113
114  // Flag signaling that the frame is encoded using only INTRA modes.
115  int intra_only;
116
117  int allow_high_precision_mv;
118
119  // Flag signaling that the frame context should be reset to default values.
120  // 0 or 1 implies don't reset, 2 reset just the context specified in the
121  // frame header, 3 reset all contexts.
122  int reset_frame_context;
123
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
139  /* We allocate a MODE_INFO struct for each macroblock, together with
140     an extra row on top and column on the left to simplify prediction. */
141
142  int mi_idx;
143  int prev_mi_idx;
144  int mi_alloc_size;
145  MODE_INFO *mip_array[2];
146  MODE_INFO **mi_grid_base_array[2];
147
148  MODE_INFO *mip; /* Base of allocated array */
149  MODE_INFO *mi;  /* Corresponds to upper left visible macroblock */
150  MODE_INFO *prev_mip; /* MODE_INFO array 'mip' from last decoded frame */
151  MODE_INFO *prev_mi;  /* 'mi' from last frame (points into prev_mip) */
152
153  // Persistent mb segment id map used in prediction.
154  unsigned char *last_frame_seg_map;
155
156  INTERP_FILTER interp_filter;
157
158  loop_filter_info_n lf_info;
159
160  int refresh_frame_context;    /* Two state 0 = NO, 1 = YES */
161
162  int ref_frame_sign_bias[MAX_REF_FRAMES];    /* Two state 0, 1 */
163
164  struct loopfilter lf;
165  struct segmentation seg;
166
167  // Context probabilities for reference frame prediction
168  int allow_comp_inter_inter;
169  MV_REFERENCE_FRAME comp_fixed_ref;
170  MV_REFERENCE_FRAME comp_var_ref[2];
171  REFERENCE_MODE reference_mode;
172
173  FRAME_CONTEXT fc;  /* this frame entropy */
174  FRAME_CONTEXT frame_contexts[FRAME_CONTEXTS];
175  unsigned int  frame_context_idx; /* Context to use/update */
176  FRAME_COUNTS counts;
177
178  unsigned int current_video_frame;
179  BITSTREAM_PROFILE profile;
180
181  // VPX_BITS_8 in profile 0 or 1, VPX_BITS_10 or VPX_BITS_12 in profile 2 or 3.
182  vpx_bit_depth_t bit_depth;
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  int log2_tile_cols, log2_tile_rows;
192
193  // Private data associated with the frame buffer callbacks.
194  void *cb_priv;
195  vpx_get_frame_buffer_cb_fn_t get_fb_cb;
196  vpx_release_frame_buffer_cb_fn_t release_fb_cb;
197
198  // Handles memory for the codec.
199  InternalFrameBufferList int_frame_buffers;
200
201  PARTITION_CONTEXT *above_seg_context;
202  ENTROPY_CONTEXT *above_context;
203} VP9_COMMON;
204
205static INLINE YV12_BUFFER_CONFIG *get_ref_frame(VP9_COMMON *cm, int index) {
206  if (index < 0 || index >= REF_FRAMES)
207    return NULL;
208  if (cm->ref_frame_map[index] < 0)
209    return NULL;
210  assert(cm->ref_frame_map[index] < FRAME_BUFFERS);
211  return &cm->frame_bufs[cm->ref_frame_map[index]].buf;
212}
213
214static INLINE YV12_BUFFER_CONFIG *get_frame_new_buffer(VP9_COMMON *cm) {
215  return &cm->frame_bufs[cm->new_fb_idx].buf;
216}
217
218static INLINE int get_free_fb(VP9_COMMON *cm) {
219  int i;
220  for (i = 0; i < FRAME_BUFFERS; i++)
221    if (cm->frame_bufs[i].ref_count == 0)
222      break;
223
224  assert(i < FRAME_BUFFERS);
225  cm->frame_bufs[i].ref_count = 1;
226  return i;
227}
228
229static INLINE void ref_cnt_fb(RefCntBuffer *bufs, int *idx, int new_idx) {
230  const int ref_index = *idx;
231
232  if (ref_index >= 0 && bufs[ref_index].ref_count > 0)
233    bufs[ref_index].ref_count--;
234
235  *idx = new_idx;
236
237  bufs[new_idx].ref_count++;
238}
239
240static INLINE int mi_cols_aligned_to_sb(int n_mis) {
241  return ALIGN_POWER_OF_TWO(n_mis, MI_BLOCK_SIZE_LOG2);
242}
243
244static INLINE void init_macroblockd(VP9_COMMON *cm, MACROBLOCKD *xd) {
245  int i;
246
247  for (i = 0; i < MAX_MB_PLANE; ++i) {
248    xd->plane[i].dqcoeff = xd->dqcoeff[i];
249    xd->above_context[i] = cm->above_context +
250        i * sizeof(*cm->above_context) * 2 * mi_cols_aligned_to_sb(cm->mi_cols);
251  }
252
253  xd->above_seg_context = cm->above_seg_context;
254  xd->mi_stride = cm->mi_stride;
255}
256
257static INLINE int frame_is_intra_only(const VP9_COMMON *const cm) {
258  return cm->frame_type == KEY_FRAME || cm->intra_only;
259}
260
261static INLINE const vp9_prob* get_partition_probs(const VP9_COMMON *cm,
262                                                  int ctx) {
263  return frame_is_intra_only(cm) ? vp9_kf_partition_probs[ctx]
264                                 : cm->fc.partition_prob[ctx];
265}
266
267static INLINE void set_skip_context(MACROBLOCKD *xd, int mi_row, int mi_col) {
268  const int above_idx = mi_col * 2;
269  const int left_idx = (mi_row * 2) & 15;
270  int i;
271  for (i = 0; i < MAX_MB_PLANE; ++i) {
272    struct macroblockd_plane *const pd = &xd->plane[i];
273    pd->above_context = &xd->above_context[i][above_idx >> pd->subsampling_x];
274    pd->left_context = &xd->left_context[i][left_idx >> pd->subsampling_y];
275  }
276}
277
278static INLINE int calc_mi_size(int len) {
279  // len is in mi units.
280  return len + MI_BLOCK_SIZE;
281}
282
283static INLINE void set_mi_row_col(MACROBLOCKD *xd, const TileInfo *const tile,
284                                  int mi_row, int bh,
285                                  int mi_col, int bw,
286                                  int mi_rows, int mi_cols) {
287  xd->mb_to_top_edge    = -((mi_row * MI_SIZE) * 8);
288  xd->mb_to_bottom_edge = ((mi_rows - bh - mi_row) * MI_SIZE) * 8;
289  xd->mb_to_left_edge   = -((mi_col * MI_SIZE) * 8);
290  xd->mb_to_right_edge  = ((mi_cols - bw - mi_col) * MI_SIZE) * 8;
291
292  // Are edges available for intra prediction?
293  xd->up_available    = (mi_row != 0);
294  xd->left_available  = (mi_col > tile->mi_col_start);
295}
296
297static INLINE void set_prev_mi(VP9_COMMON *cm) {
298  const int use_prev_in_find_mv_refs = cm->width == cm->last_width &&
299                                       cm->height == cm->last_height &&
300                                       !cm->intra_only &&
301                                       cm->last_show_frame;
302  // Special case: set prev_mi to NULL when the previous mode info
303  // context cannot be used.
304  cm->prev_mi = use_prev_in_find_mv_refs ?
305                  cm->prev_mip + cm->mi_stride + 1 : NULL;
306}
307
308static INLINE void update_partition_context(MACROBLOCKD *xd,
309                                            int mi_row, int mi_col,
310                                            BLOCK_SIZE subsize,
311                                            BLOCK_SIZE bsize) {
312  PARTITION_CONTEXT *const above_ctx = xd->above_seg_context + mi_col;
313  PARTITION_CONTEXT *const left_ctx = xd->left_seg_context + (mi_row & MI_MASK);
314
315  // num_4x4_blocks_wide_lookup[bsize] / 2
316  const int bs = num_8x8_blocks_wide_lookup[bsize];
317
318  // update the partition context at the end notes. set partition bits
319  // of block sizes larger than the current one to be one, and partition
320  // bits of smaller block sizes to be zero.
321  vpx_memset(above_ctx, partition_context_lookup[subsize].above, bs);
322  vpx_memset(left_ctx, partition_context_lookup[subsize].left, bs);
323}
324
325static INLINE int partition_plane_context(const MACROBLOCKD *xd,
326                                          int mi_row, int mi_col,
327                                          BLOCK_SIZE bsize) {
328  const PARTITION_CONTEXT *above_ctx = xd->above_seg_context + mi_col;
329  const PARTITION_CONTEXT *left_ctx = xd->left_seg_context + (mi_row & MI_MASK);
330
331  const int bsl = mi_width_log2(bsize);
332  const int bs = 1 << bsl;
333  int above = 0, left = 0, i;
334
335  assert(b_width_log2(bsize) == b_height_log2(bsize));
336  assert(bsl >= 0);
337
338  for (i = 0; i < bs; i++) {
339    above |= above_ctx[i];
340    left |= left_ctx[i];
341  }
342  above = (above & bs) > 0;
343  left  = (left & bs) > 0;
344
345  return (left * 2 + above) + bsl * PARTITION_PLOFFSET;
346}
347
348#ifdef __cplusplus
349}  // extern "C"
350#endif
351
352#endif  // VP9_COMMON_VP9_ONYXC_INT_H_
353