vp9_encoder.h 16.4 KB
Newer Older
John Koleszar's avatar
John Koleszar committed
1
/*
2
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
John Koleszar's avatar
John Koleszar committed
3
 *
4
 *  Use of this source code is governed by a BSD-style license
5 6
 *  that can be found in the LICENSE file in the root of the source
 *  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.
John Koleszar's avatar
John Koleszar committed
9 10
 */

Dmitry Kovalev's avatar
Dmitry Kovalev committed
11 12
#ifndef VP9_ENCODER_VP9_ENCODER_H_
#define VP9_ENCODER_VP9_ENCODER_H_
John Koleszar's avatar
John Koleszar committed
13 14

#include <stdio.h>
15

16
#include "./vpx_config.h"
17 18
#include "vpx_ports/mem.h"
#include "vpx/internal/vpx_codec_internal.h"
19
#include "vpx/vp8cx.h"
20

21
#include "vp9/common/vp9_ppflags.h"
22 23
#include "vp9/common/vp9_entropy.h"
#include "vp9/common/vp9_entropymode.h"
24
#include "vp9/common/vp9_onyxc_int.h"
25

Marco Paniconi's avatar
Marco Paniconi committed
26
#include "vp9/encoder/vp9_aq_cyclicrefresh.h"
27
#include "vp9/encoder/vp9_context_tree.h"
28
#include "vp9/encoder/vp9_encodemb.h"
29
#include "vp9/encoder/vp9_firstpass.h"
30
#include "vp9/encoder/vp9_lookahead.h"
31
#include "vp9/encoder/vp9_mbgraph.h"
32 33 34
#include "vp9/encoder/vp9_mcomp.h"
#include "vp9/encoder/vp9_quantize.h"
#include "vp9/encoder/vp9_ratectrl.h"
35
#include "vp9/encoder/vp9_rd.h"
36
#include "vp9/encoder/vp9_speed_features.h"
37
#include "vp9/encoder/vp9_svc_layercontext.h"
38 39
#include "vp9/encoder/vp9_tokenize.h"
#include "vp9/encoder/vp9_variance.h"
40
#if CONFIG_VP9_TEMPORAL_DENOISING
Tim Kopp's avatar
Tim Kopp committed
41 42
#include "vp9/encoder/vp9_denoiser.h"
#endif
John Koleszar's avatar
John Koleszar committed
43

44 45 46 47
#ifdef __cplusplus
extern "C" {
#endif

48
#define DEFAULT_GF_INTERVAL         10
John Koleszar's avatar
John Koleszar committed
49

John Koleszar's avatar
John Koleszar committed
50
typedef struct {
51 52 53
  int nmvjointcost[MV_JOINTS];
  int nmvcosts[2][MV_VALS];
  int nmvcosts_hp[2][MV_VALS];
John Koleszar's avatar
John Koleszar committed
54

55
  vp9_prob segment_pred_probs[PREDICTION_PROBS];
John Koleszar's avatar
John Koleszar committed
56

John Koleszar's avatar
John Koleszar committed
57
  unsigned char *last_frame_seg_map_copy;
58

John Koleszar's avatar
John Koleszar committed
59 60
  // 0 = Intra, Last, GF, ARF
  signed char last_ref_lf_deltas[MAX_REF_LF_DELTAS];
61
  // 0 = ZERO_MV, MV
John Koleszar's avatar
John Koleszar committed
62
  signed char last_mode_lf_deltas[MAX_MODE_LF_DELTAS];
John Koleszar's avatar
John Koleszar committed
63

64
  FRAME_CONTEXT fc;
John Koleszar's avatar
John Koleszar committed
65 66
} CODING_CONTEXT;

67

68 69 70 71 72 73 74 75 76
typedef enum {
  // encode_breakout is disabled.
  ENCODE_BREAKOUT_DISABLED = 0,
  // encode_breakout is enabled.
  ENCODE_BREAKOUT_ENABLED = 1,
  // encode_breakout is enabled with small max_thresh limit.
  ENCODE_BREAKOUT_LIMITED = 2
} ENCODE_BREAKOUT_TYPE;

77 78 79 80 81 82 83 84
typedef enum {
  NORMAL      = 0,
  FOURFIVE    = 1,
  THREEFIVE   = 2,
  ONETWO      = 3
} VPX_SCALING;

typedef enum {
85 86 87
  // Good Quality Fast Encoding. The encoder balances quality with the
  // amount of time it takes to encode the output. (speed setting
  // controls how fast)
Dmitry Kovalev's avatar
Dmitry Kovalev committed
88
  ONE_PASS_GOOD = 1,
89 90 91 92 93

  // One Pass - Best Quality. The encoder places priority on the
  // quality of the output over encoding speed. The output is compressed
  // at the highest possible quality. This option takes the longest
  // amount of time to encode. (speed setting ignored)
Dmitry Kovalev's avatar
Dmitry Kovalev committed
94
  ONE_PASS_BEST = 2,
95 96 97

  // Two Pass - First Pass. The encoder generates a file of statistics
  // for use in the second encoding pass. (speed setting controls how fast)
Dmitry Kovalev's avatar
Dmitry Kovalev committed
98
  TWO_PASS_FIRST = 3,
99 100 101 102

  // Two Pass - Second Pass. The encoder uses the statistics that were
  // generated in the first encoding pass to create the compressed
  // output. (speed setting controls how fast)
Dmitry Kovalev's avatar
Dmitry Kovalev committed
103
  TWO_PASS_SECOND_GOOD = 4,
104 105 106 107 108

  // Two Pass - Second Pass Best.  The encoder uses the statistics that
  // were generated in the first encoding pass to create the compressed
  // output using the highest possible quality, and taking a
  // longer amount of time to encode. (speed setting ignored)
Dmitry Kovalev's avatar
Dmitry Kovalev committed
109
  TWO_PASS_SECOND_BEST = 5,
110 111 112 113

  // Realtime/Live Encoding. This mode is optimized for realtime
  // encoding (for example, capturing a television signal or feed from
  // a live camera). (speed setting controls how fast)
Dmitry Kovalev's avatar
Dmitry Kovalev committed
114
  REALTIME = 6,
115 116 117
} MODE;

typedef enum {
118 119 120
  FRAMEFLAGS_KEY    = 1 << 0,
  FRAMEFLAGS_GOLDEN = 1 << 1,
  FRAMEFLAGS_ALTREF = 1 << 2,
121 122 123 124 125 126
} FRAMETYPE_FLAGS;

typedef enum {
  NO_AQ = 0,
  VARIANCE_AQ = 1,
  COMPLEXITY_AQ = 2,
127
  CYCLIC_REFRESH_AQ = 3,
128 129
  AQ_MODE_COUNT  // This should always be the last member of the enum
} AQ_MODE;
130

Dmitry Kovalev's avatar
Dmitry Kovalev committed
131

132
typedef struct VP9EncoderConfig {
133 134
  BITSTREAM_PROFILE profile;
  BIT_DEPTH bit_depth;
135 136
  int width;  // width of data passed to the compressor
  int height;  // height of data passed to the compressor
137
  double init_framerate;  // set to passed in framerate
138 139 140 141
  int64_t target_bandwidth;  // bandwidth to be used in kilobits per second

  int noise_sensitivity;  // pre processing blur: recommendation 0
  int sharpness;  // sharpening output: recommendation 0:
142
  int speed;
143 144
  unsigned int rc_max_intra_bitrate_pct;

145
  MODE mode;
146
  int pass;
147 148 149 150 151 152 153 154 155 156

  // Key Framing Operations
  int auto_key;  // autodetect cut scenes and set the keyframes
  int key_freq;  // maximum distance to key frame.

  int lag_in_frames;  // how many frames lag before we start encoding

  // ----------------------------------------------------------------
  // DATARATE CONTROL OPTIONS

157 158
  // vbr, cbr, constrained quality or constant quality
  enum vpx_rc_mode rc_mode;
159 160 161 162 163 164

  // buffer targeting aggressiveness
  int under_shoot_pct;
  int over_shoot_pct;

  // buffering parameters
165 166 167
  int64_t starting_buffer_level_ms;
  int64_t optimal_buffer_level_ms;
  int64_t maximum_buffer_size_ms;
168 169 170 171 172 173 174 175 176

  // Frame drop threshold.
  int drop_frames_water_mark;

  // controlling quality
  int fixed_q;
  int worst_allowed_q;
  int best_allowed_q;
  int cq_level;
177
  AQ_MODE aq_mode;  // Adaptive Quantization mode
178

179 180 181 182 183
  // Internal frame size scaling.
  int allow_spatial_resampling;
  int scaled_frame_width;
  int scaled_frame_height;

184 185 186
  // Enable feature to reduce the frame quantization every x frames.
  int frame_periodic_boost;

187 188 189 190 191 192 193 194 195 196 197 198
  // two pass datarate control
  int two_pass_vbrbias;        // two pass datarate control tweaks
  int two_pass_vbrmin_section;
  int two_pass_vbrmax_section;
  // END DATARATE CONTROL OPTIONS
  // ----------------------------------------------------------------

  // Spatial and temporal scalability.
  int ss_number_layers;  // Number of spatial layers.
  int ts_number_layers;  // Number of temporal layers.
  // Bitrate allocation for spatial layers.
  int ss_target_bitrate[VPX_SS_MAX_LAYERS];
199
  int ss_play_alternate[VPX_SS_MAX_LAYERS];
200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222
  // Bitrate allocation (CBR mode) and framerate factor, for temporal layers.
  int ts_target_bitrate[VPX_TS_MAX_LAYERS];
  int ts_rate_decimator[VPX_TS_MAX_LAYERS];

  // these parameters aren't to be used in final build don't use!!!
  int play_alternate;

  int encode_breakout;  // early breakout : for video conf recommend 800

  /* Bitfield defining the error resiliency features to enable.
   * Can provide decodable frames after losses in previous
   * frames and decodable partitions after losses in the same frame.
   */
  unsigned int error_resilient_mode;

  /* Bitfield defining the parallel decoding mode where the
   * decoding in successive frames may be conducted in parallel
   * just by decoding the frame headers.
   */
  unsigned int frame_parallel_decoding_mode;

  int arnr_max_frames;
  int arnr_strength;
223
  int arnr_type;
224 225 226 227 228 229 230

  int tile_columns;
  int tile_rows;

  struct vpx_fixed_buf         two_pass_stats_in;
  struct vpx_codec_pkt_list  *output_pkt_list;

231 232 233 234
#if CONFIG_FP_MB_STATS
  struct vpx_fixed_buf         firstpass_mb_stats_in;
#endif

235
  vp8e_tuning tuning;
236
  vp9e_tune_content content;
237
} VP9EncoderConfig;
238

239 240 241 242
static INLINE int is_lossless_requested(const VP9EncoderConfig *cfg) {
  return cfg->best_allowed_q == 0 && cfg->worst_allowed_q == 0;
}

243 244 245
static INLINE int is_best_mode(MODE mode) {
  return mode == ONE_PASS_BEST || mode == TWO_PASS_SECOND_BEST;
}
Dmitry Kovalev's avatar
Dmitry Kovalev committed
246

247
typedef struct VP9_COMP {
248
  QUANTS quants;
John Koleszar's avatar
John Koleszar committed
249
  MACROBLOCK mb;
250
  VP9_COMMON common;
251
  VP9EncoderConfig oxcf;
John Koleszar's avatar
John Koleszar committed
252 253 254
  struct lookahead_ctx    *lookahead;
  struct lookahead_entry  *source;
  struct lookahead_entry  *alt_ref_source;
255
  struct lookahead_entry  *last_source;
John Koleszar's avatar
John Koleszar committed
256

John Koleszar's avatar
John Koleszar committed
257
  YV12_BUFFER_CONFIG *Source;
258
  YV12_BUFFER_CONFIG *Last_Source;  // NULL for first frame and alt_ref frames
John Koleszar's avatar
John Koleszar committed
259 260
  YV12_BUFFER_CONFIG *un_scaled_source;
  YV12_BUFFER_CONFIG scaled_source;
261 262
  YV12_BUFFER_CONFIG *unscaled_last_source;
  YV12_BUFFER_CONFIG scaled_last_source;
John Koleszar's avatar
John Koleszar committed
263

264 265
  int gold_is_last;  // gold same as last frame ( short circuit gold searches)
  int alt_is_last;  // Alt same as last ( short circuit altref search)
John Koleszar's avatar
John Koleszar committed
266
  int gold_is_alt;  // don't do both alt and gold search ( just do gold).
John Koleszar's avatar
John Koleszar committed
267

268 269
  int skippable_frame;

270
  int scaled_ref_idx[3];
271 272 273
  int lst_fb_idx;
  int gld_fb_idx;
  int alt_fb_idx;
274

275 276 277
  int refresh_last_frame;
  int refresh_golden_frame;
  int refresh_alt_ref_frame;
Deb Mukherjee's avatar
Deb Mukherjee committed
278 279 280 281 282 283 284 285 286

  int ext_refresh_frame_flags_pending;
  int ext_refresh_last_frame;
  int ext_refresh_golden_frame;
  int ext_refresh_alt_ref_frame;

  int ext_refresh_frame_context_pending;
  int ext_refresh_frame_context;

John Koleszar's avatar
John Koleszar committed
287
  YV12_BUFFER_CONFIG last_frame_uf;
John Koleszar's avatar
John Koleszar committed
288

John Koleszar's avatar
John Koleszar committed
289
  TOKENEXTRA *tok;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
290
  unsigned int tok_count[4][1 << 6];
John Koleszar's avatar
John Koleszar committed
291

John Koleszar's avatar
John Koleszar committed
292 293
  // Ambient reconstruction err target for force key frames
  int ambient_err;
294

Dmitry Kovalev's avatar
Dmitry Kovalev committed
295
  RD_OPT rd;
John Koleszar's avatar
John Koleszar committed
296

John Koleszar's avatar
John Koleszar committed
297
  CODING_CONTEXT coding_context;
John Koleszar's avatar
John Koleszar committed
298

299 300
  int zbin_mode_boost;
  int zbin_mode_boost_enabled;
John Koleszar's avatar
John Koleszar committed
301

John Koleszar's avatar
John Koleszar committed
302 303 304
  int64_t last_time_stamp_seen;
  int64_t last_end_time_stamp_seen;
  int64_t first_time_stamp_ever;
John Koleszar's avatar
John Koleszar committed
305

306
  RATE_CONTROL rc;
307
  double framerate;
John Koleszar's avatar
John Koleszar committed
308

309
  vp9_coeff_count coef_counts[TX_SIZES][PLANE_TYPES];
310

John Koleszar's avatar
John Koleszar committed
311
  struct vpx_codec_pkt_list  *output_pkt_list;
312

John Koleszar's avatar
John Koleszar committed
313 314 315 316
  MBGRAPH_FRAME_STATS mbgraph_stats[MAX_LAG_BUFFERS];
  int mbgraph_n_frames;             // number of frames filled in the above
  int static_mb_pct;                // % forced skip mbs by segmentation
  int ref_frame_flags;
John Koleszar's avatar
John Koleszar committed
317

John Koleszar's avatar
John Koleszar committed
318
  SPEED_FEATURES sf;
John Koleszar's avatar
John Koleszar committed
319

Paul Wilkins's avatar
Paul Wilkins committed
320
  unsigned int max_mv_magnitude;
321
  int mv_step_param;
Paul Wilkins's avatar
Paul Wilkins committed
322

323 324 325
  // Default value is 1. From first pass stats, encode_breakout may be disabled.
  ENCODE_BREAKOUT_TYPE allow_encode_breakout;

326 327
  // Get threshold from external input. A suggested threshold is 800 for HD
  // clips, and 300 for < HD clips.
328 329
  int encode_breakout;

John Koleszar's avatar
John Koleszar committed
330
  unsigned char *segmentation_map;
Paul Wilkins's avatar
Paul Wilkins committed
331

John Koleszar's avatar
John Koleszar committed
332
  // segment threashold for encode breakout
Paul Wilkins's avatar
Paul Wilkins committed
333
  int  segment_encode_breakout[MAX_SEGMENTS];
John Koleszar's avatar
John Koleszar committed
334

335 336
  unsigned char *complexity_map;

337
  CYCLIC_REFRESH *cyclic_refresh;
338

John Koleszar's avatar
John Koleszar committed
339
  fractional_mv_step_fp *find_fractional_mv_step;
340 341 342
  vp9_full_search_fn_t full_search_sad;
  vp9_refining_search_fn_t refining_search_sad;
  vp9_diamond_search_fn_t diamond_search_sad;
343
  vp9_variance_fn_ptr_t fn_ptr[BLOCK_SIZES];
Yaowu Xu's avatar
Yaowu Xu committed
344 345 346
  uint64_t time_receive_data;
  uint64_t time_compress_data;
  uint64_t time_pick_lpf;
347
  uint64_t time_encode_sb_row;
John Koleszar's avatar
John Koleszar committed
348

349 350 351 352
#if CONFIG_FP_MB_STATS
  int use_fp_mb_stats;
#endif

Paul Wilkins's avatar
Paul Wilkins committed
353
  TWO_PASS twopass;
John Koleszar's avatar
John Koleszar committed
354

John Koleszar's avatar
John Koleszar committed
355 356
  YV12_BUFFER_CONFIG alt_ref_buffer;
  YV12_BUFFER_CONFIG *frames[MAX_LAG_BUFFERS];
John Koleszar's avatar
John Koleszar committed
357

358
#if CONFIG_INTERNAL_STATS
359 360
  unsigned int mode_chosen_counts[MAX_MODES];

John Koleszar's avatar
John Koleszar committed
361 362 363 364 365
  int    count;
  double total_y;
  double total_u;
  double total_v;
  double total;
366 367 368
  uint64_t total_sq_error;
  uint64_t total_samples;

John Koleszar's avatar
John Koleszar committed
369 370 371 372
  double totalp_y;
  double totalp_u;
  double totalp_v;
  double totalp;
373 374 375
  uint64_t totalp_sq_error;
  uint64_t totalp_samples;

John Koleszar's avatar
John Koleszar committed
376 377 378
  int    bytes;
  double summed_quality;
  double summed_weights;
379 380
  double summedp_quality;
  double summedp_weights;
John Koleszar's avatar
John Koleszar committed
381 382 383 384 385 386 387 388 389
  unsigned int tot_recode_hits;


  double total_ssimg_y;
  double total_ssimg_u;
  double total_ssimg_v;
  double total_ssimg_all;

  int b_calculate_ssimg;
John Koleszar's avatar
John Koleszar committed
390
#endif
John Koleszar's avatar
John Koleszar committed
391
  int b_calculate_psnr;
392

John Koleszar's avatar
John Koleszar committed
393
  int droppable;
Adrian Grange's avatar
Adrian Grange committed
394

John Koleszar's avatar
John Koleszar committed
395
  int dummy_packing;    /* flag to indicate if packing is dummy */
396

Dmitry Kovalev's avatar
Dmitry Kovalev committed
397
  unsigned int tx_stepdown_count[TX_SIZES];
Deb Mukherjee's avatar
Deb Mukherjee committed
398

399 400
  int initial_width;
  int initial_height;
401

402 403
  int use_svc;

404
  SVC svc;
405

406 407 408 409 410
  // Store frame variance info in SOURCE_VAR_BASED_PARTITION search type.
  diff *source_diff_var;
  // The threshold used in SOURCE_VAR_BASED_PARTITION search type.
  unsigned int source_var_thresh;
  int frames_till_next_var_check;
411

412 413
  int frame_flags;

414 415
  search_site_config ss_cfg;

416 417 418 419 420 421
  int mbmode_cost[INTRA_MODES];
  unsigned inter_mode_cost[INTER_MODE_CONTEXTS][INTER_MODES];
  int intra_uv_mode_cost[FRAME_TYPES][INTRA_MODES];
  int y_mode_costs[INTRA_MODES][INTRA_MODES][INTRA_MODES];
  int switchable_interp_costs[SWITCHABLE_FILTER_CONTEXTS][SWITCHABLE_FILTERS];

422 423 424 425 426
  PICK_MODE_CONTEXT *leaf_tree;
  PC_TREE *pc_tree;
  PC_TREE *pc_root;
  int partition_cost[PARTITION_CONTEXTS][PARTITION_TYPES];

427
  int multi_arf_allowed;
428
  int multi_arf_enabled;
429
  int multi_arf_last_grp_enabled;
Tim Kopp's avatar
Tim Kopp committed
430

431
#if CONFIG_VP9_TEMPORAL_DENOISING
Tim Kopp's avatar
Tim Kopp committed
432 433
  VP9_DENOISER denoiser;
#endif
434
} VP9_COMP;
John Koleszar's avatar
John Koleszar committed
435

436 437
void vp9_initialize_enc();

438
struct VP9_COMP *vp9_create_compressor(VP9EncoderConfig *oxcf);
439 440
void vp9_remove_compressor(VP9_COMP *cpi);

441
void vp9_change_config(VP9_COMP *cpi, const VP9EncoderConfig *oxcf);
442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457

  // receive a frames worth of data. caller can assume that a copy of this
  // frame is made and not just a copy of the pointer..
int vp9_receive_raw_frame(VP9_COMP *cpi, unsigned int frame_flags,
                          YV12_BUFFER_CONFIG *sd, int64_t time_stamp,
                          int64_t end_time_stamp);

int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags,
                            size_t *size, uint8_t *dest,
                            int64_t *time_stamp, int64_t *time_end, int flush);

int vp9_get_preview_raw_frame(VP9_COMP *cpi, YV12_BUFFER_CONFIG *dest,
                              vp9_ppflags_t *flags);

int vp9_use_as_reference(VP9_COMP *cpi, int ref_frame_flags);

458
void vp9_update_reference(VP9_COMP *cpi, int ref_frame_flags);
459 460 461 462 463 464 465 466 467

int vp9_copy_reference_enc(VP9_COMP *cpi, VP9_REFFRAME ref_frame_flag,
                           YV12_BUFFER_CONFIG *sd);

int vp9_set_reference_enc(VP9_COMP *cpi, VP9_REFFRAME ref_frame_flag,
                          YV12_BUFFER_CONFIG *sd);

int vp9_update_entropy(VP9_COMP *cpi, int update);

468
int vp9_set_active_map(VP9_COMP *cpi, unsigned char *map, int rows, int cols);
469 470 471 472 473 474 475 476 477 478 479

int vp9_set_internal_size(VP9_COMP *cpi,
                          VPX_SCALING horiz_mode, VPX_SCALING vert_mode);

int vp9_set_size_literal(VP9_COMP *cpi, unsigned int width,
                         unsigned int height);

void vp9_set_svc(VP9_COMP *cpi, int use_svc);

int vp9_get_quantizer(struct VP9_COMP *cpi);

480 481
static INLINE int get_ref_frame_idx(const VP9_COMP *cpi,
                                    MV_REFERENCE_FRAME ref_frame) {
482 483 484 485 486 487 488 489 490
  if (ref_frame == LAST_FRAME) {
    return cpi->lst_fb_idx;
  } else if (ref_frame == GOLDEN_FRAME) {
    return cpi->gld_fb_idx;
  } else {
    return cpi->alt_fb_idx;
  }
}

491 492 493 494 495
static INLINE YV12_BUFFER_CONFIG *get_ref_frame_buffer(
    VP9_COMP *cpi, MV_REFERENCE_FRAME ref_frame) {
  VP9_COMMON * const cm = &cpi->common;
  return &cm->frame_bufs[cm->ref_frame_map[get_ref_frame_idx(cpi, ref_frame)]]
      .buf;
496 497
}

498 499
// Intra only frames, golden frames (except alt ref overlays) and
// alt ref frames tend to be coded at a higher than ambient quality
500
static INLINE int frame_is_boosted(const VP9_COMP *cpi) {
501
  return frame_is_intra_only(&cpi->common) || cpi->refresh_alt_ref_frame ||
502 503
         (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref) ||
         vp9_is_upper_layer_key_frame(cpi);
504 505
}

506
static INLINE int get_token_alloc(int mb_rows, int mb_cols) {
507 508
  // TODO(JBB): double check we can't exceed this token count if we have a
  // 32x32 transform crossing a boundary at a multiple of 16.
509 510 511 512 513 514
  // mb_rows, cols are in units of 16 pixels. We assume 3 planes all at full
  // resolution. We assume up to 1 token per pixel, and then allow
  // a head room of 4.
  return mb_rows * mb_cols * (16 * 16 * 3 + 4);
}

515
int vp9_get_y_sse(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b);
516

517
void vp9_alloc_compressor_data(VP9_COMP *cpi);
518

519 520 521 522
void vp9_scale_references(VP9_COMP *cpi);

void vp9_update_reference_frames(VP9_COMP *cpi);

523 524
void vp9_set_high_precision_mv(VP9_COMP *cpi, int allow_high_precision_mv);

525 526 527 528
YV12_BUFFER_CONFIG *vp9_scale_if_required(VP9_COMMON *cm,
                                          YV12_BUFFER_CONFIG *unscaled,
                                          YV12_BUFFER_CONFIG *scaled);

529 530
void vp9_apply_encoding_flags(VP9_COMP *cpi, vpx_enc_frame_flags_t flags);

531 532 533 534 535 536
static INLINE int is_spatial_svc(const struct VP9_COMP *const cpi) {
  return cpi->use_svc &&
         cpi->svc.number_temporal_layers == 1 &&
         cpi->svc.number_spatial_layers > 1;
}

537 538 539
static INLINE int is_altref_enabled(const VP9_COMP *const cpi) {
  return cpi->oxcf.mode != REALTIME && cpi->oxcf.lag_in_frames > 0 &&
         (cpi->oxcf.play_alternate &&
540
          (!is_spatial_svc(cpi) ||
541 542 543
           cpi->oxcf.ss_play_alternate[cpi->svc.spatial_layer_id]));
}

544 545 546
static INLINE void set_ref_ptrs(VP9_COMMON *cm, MACROBLOCKD *xd,
                                MV_REFERENCE_FRAME ref0,
                                MV_REFERENCE_FRAME ref1) {
547 548 549 550
  xd->block_refs[0] = &cm->frame_refs[ref0 >= LAST_FRAME ? ref0 - LAST_FRAME
                                                         : 0];
  xd->block_refs[1] = &cm->frame_refs[ref1 >= LAST_FRAME ? ref1 - LAST_FRAME
                                                         : 0];
551 552
}

553 554
static INLINE int get_chessboard_index(const int frame_index) {
  return frame_index & 0x1;
555 556
}

557 558 559 560
#ifdef __cplusplus
}  // extern "C"
#endif

Dmitry Kovalev's avatar
Dmitry Kovalev committed
561
#endif  // VP9_ENCODER_VP9_ENCODER_H_