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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_ENCODER_VP9_ENCODER_H_
12 #define VP9_ENCODER_VP9_ENCODER_H_
13 
14 #include <stdio.h>
15 
16 #include "./vpx_config.h"
17 #include "vpx/internal/vpx_codec_internal.h"
18 #include "vpx/vp8cx.h"
19 #if CONFIG_INTERNAL_STATS
20 #include "vpx_dsp/ssim.h"
21 #endif
22 #include "vpx_dsp/variance.h"
23 #include "vpx_ports/system_state.h"
24 #include "vpx_util/vpx_thread.h"
25 
26 #include "vp9/common/vp9_alloccommon.h"
27 #include "vp9/common/vp9_ppflags.h"
28 #include "vp9/common/vp9_entropymode.h"
29 #include "vp9/common/vp9_thread_common.h"
30 #include "vp9/common/vp9_onyxc_int.h"
31 
32 #include "vp9/encoder/vp9_alt_ref_aq.h"
33 #include "vp9/encoder/vp9_aq_cyclicrefresh.h"
34 #include "vp9/encoder/vp9_context_tree.h"
35 #include "vp9/encoder/vp9_encodemb.h"
36 #include "vp9/encoder/vp9_ethread.h"
37 #include "vp9/encoder/vp9_firstpass.h"
38 #include "vp9/encoder/vp9_job_queue.h"
39 #include "vp9/encoder/vp9_lookahead.h"
40 #include "vp9/encoder/vp9_mbgraph.h"
41 #include "vp9/encoder/vp9_mcomp.h"
42 #include "vp9/encoder/vp9_noise_estimate.h"
43 #include "vp9/encoder/vp9_quantize.h"
44 #include "vp9/encoder/vp9_ratectrl.h"
45 #include "vp9/encoder/vp9_rd.h"
46 #include "vp9/encoder/vp9_speed_features.h"
47 #include "vp9/encoder/vp9_svc_layercontext.h"
48 #include "vp9/encoder/vp9_tokenize.h"
49 
50 #if CONFIG_VP9_TEMPORAL_DENOISING
51 #include "vp9/encoder/vp9_denoiser.h"
52 #endif
53 
54 #ifdef __cplusplus
55 extern "C" {
56 #endif
57 
58 // vp9 uses 10,000,000 ticks/second as time stamp
59 #define TICKS_PER_SEC 10000000
60 
61 typedef struct {
62   int nmvjointcost[MV_JOINTS];
63   int nmvcosts[2][MV_VALS];
64   int nmvcosts_hp[2][MV_VALS];
65 
66   vpx_prob segment_pred_probs[PREDICTION_PROBS];
67 
68   unsigned char *last_frame_seg_map_copy;
69 
70   // 0 = Intra, Last, GF, ARF
71   signed char last_ref_lf_deltas[MAX_REF_LF_DELTAS];
72   // 0 = ZERO_MV, MV
73   signed char last_mode_lf_deltas[MAX_MODE_LF_DELTAS];
74 
75   FRAME_CONTEXT fc;
76 } CODING_CONTEXT;
77 
78 typedef enum {
79   // encode_breakout is disabled.
80   ENCODE_BREAKOUT_DISABLED = 0,
81   // encode_breakout is enabled.
82   ENCODE_BREAKOUT_ENABLED = 1,
83   // encode_breakout is enabled with small max_thresh limit.
84   ENCODE_BREAKOUT_LIMITED = 2
85 } ENCODE_BREAKOUT_TYPE;
86 
87 typedef enum {
88   NORMAL = 0,
89   FOURFIVE = 1,
90   THREEFIVE = 2,
91   ONETWO = 3
92 } VPX_SCALING;
93 
94 typedef enum {
95   // Good Quality Fast Encoding. The encoder balances quality with the amount of
96   // time it takes to encode the output. Speed setting controls how fast.
97   GOOD,
98 
99   // The encoder places priority on the quality of the output over encoding
100   // speed. The output is compressed at the highest possible quality. This
101   // option takes the longest amount of time to encode. Speed setting ignored.
102   BEST,
103 
104   // Realtime/Live Encoding. This mode is optimized for realtime encoding (for
105   // example, capturing a television signal or feed from a live camera). Speed
106   // setting controls how fast.
107   REALTIME
108 } MODE;
109 
110 typedef enum {
111   FRAMEFLAGS_KEY = 1 << 0,
112   FRAMEFLAGS_GOLDEN = 1 << 1,
113   FRAMEFLAGS_ALTREF = 1 << 2,
114 } FRAMETYPE_FLAGS;
115 
116 typedef enum {
117   NO_AQ = 0,
118   VARIANCE_AQ = 1,
119   COMPLEXITY_AQ = 2,
120   CYCLIC_REFRESH_AQ = 3,
121   EQUATOR360_AQ = 4,
122   // AQ based on lookahead temporal
123   // variance (only valid for altref frames)
124   LOOKAHEAD_AQ = 5,
125   AQ_MODE_COUNT  // This should always be the last member of the enum
126 } AQ_MODE;
127 
128 typedef enum {
129   RESIZE_NONE = 0,    // No frame resizing allowed (except for SVC).
130   RESIZE_FIXED = 1,   // All frames are coded at the specified dimension.
131   RESIZE_DYNAMIC = 2  // Coded size of each frame is determined by the codec.
132 } RESIZE_TYPE;
133 
134 typedef enum {
135   kInvalid = 0,
136   kLowSadLowSumdiff = 1,
137   kLowSadHighSumdiff = 2,
138   kHighSadLowSumdiff = 3,
139   kHighSadHighSumdiff = 4,
140   kLowVarHighSumdiff = 5,
141   kVeryHighSad = 6,
142 } CONTENT_STATE_SB;
143 
144 typedef struct VP9EncoderConfig {
145   BITSTREAM_PROFILE profile;
146   vpx_bit_depth_t bit_depth;     // Codec bit-depth.
147   int width;                     // width of data passed to the compressor
148   int height;                    // height of data passed to the compressor
149   unsigned int input_bit_depth;  // Input bit depth.
150   double init_framerate;         // set to passed in framerate
151   int64_t target_bandwidth;      // bandwidth to be used in bits per second
152 
153   int noise_sensitivity;  // pre processing blur: recommendation 0
154   int sharpness;          // sharpening output: recommendation 0:
155   int speed;
156   // maximum allowed bitrate for any intra frame in % of bitrate target.
157   unsigned int rc_max_intra_bitrate_pct;
158   // maximum allowed bitrate for any inter frame in % of bitrate target.
159   unsigned int rc_max_inter_bitrate_pct;
160   // percent of rate boost for golden frame in CBR mode.
161   unsigned int gf_cbr_boost_pct;
162 
163   MODE mode;
164   int pass;
165 
166   // Key Framing Operations
167   int auto_key;  // autodetect cut scenes and set the keyframes
168   int key_freq;  // maximum distance to key frame.
169 
170   int lag_in_frames;  // how many frames lag before we start encoding
171 
172   // ----------------------------------------------------------------
173   // DATARATE CONTROL OPTIONS
174 
175   // vbr, cbr, constrained quality or constant quality
176   enum vpx_rc_mode rc_mode;
177 
178   // buffer targeting aggressiveness
179   int under_shoot_pct;
180   int over_shoot_pct;
181 
182   // buffering parameters
183   int64_t starting_buffer_level_ms;
184   int64_t optimal_buffer_level_ms;
185   int64_t maximum_buffer_size_ms;
186 
187   // Frame drop threshold.
188   int drop_frames_water_mark;
189 
190   // controlling quality
191   int fixed_q;
192   int worst_allowed_q;
193   int best_allowed_q;
194   int cq_level;
195   AQ_MODE aq_mode;  // Adaptive Quantization mode
196 
197   // Special handling of Adaptive Quantization for AltRef frames
198   int alt_ref_aq;
199 
200   // Internal frame size scaling.
201   RESIZE_TYPE resize_mode;
202   int scaled_frame_width;
203   int scaled_frame_height;
204 
205   // Enable feature to reduce the frame quantization every x frames.
206   int frame_periodic_boost;
207 
208   // two pass datarate control
209   int two_pass_vbrbias;  // two pass datarate control tweaks
210   int two_pass_vbrmin_section;
211   int two_pass_vbrmax_section;
212   int vbr_corpus_complexity;  // 0 indicates corpus vbr disabled
213   // END DATARATE CONTROL OPTIONS
214   // ----------------------------------------------------------------
215 
216   // Spatial and temporal scalability.
217   int ss_number_layers;  // Number of spatial layers.
218   int ts_number_layers;  // Number of temporal layers.
219   // Bitrate allocation for spatial layers.
220   int layer_target_bitrate[VPX_MAX_LAYERS];
221   int ss_target_bitrate[VPX_SS_MAX_LAYERS];
222   int ss_enable_auto_arf[VPX_SS_MAX_LAYERS];
223   // Bitrate allocation (CBR mode) and framerate factor, for temporal layers.
224   int ts_rate_decimator[VPX_TS_MAX_LAYERS];
225 
226   int enable_auto_arf;
227 
228   int encode_breakout;  // early breakout : for video conf recommend 800
229 
230   /* Bitfield defining the error resiliency features to enable.
231    * Can provide decodable frames after losses in previous
232    * frames and decodable partitions after losses in the same frame.
233    */
234   unsigned int error_resilient_mode;
235 
236   /* Bitfield defining the parallel decoding mode where the
237    * decoding in successive frames may be conducted in parallel
238    * just by decoding the frame headers.
239    */
240   unsigned int frame_parallel_decoding_mode;
241 
242   int arnr_max_frames;
243   int arnr_strength;
244 
245   int min_gf_interval;
246   int max_gf_interval;
247 
248   int tile_columns;
249   int tile_rows;
250 
251   int max_threads;
252 
253   unsigned int target_level;
254 
255   vpx_fixed_buf_t two_pass_stats_in;
256   struct vpx_codec_pkt_list *output_pkt_list;
257 
258 #if CONFIG_FP_MB_STATS
259   vpx_fixed_buf_t firstpass_mb_stats_in;
260 #endif
261 
262   vp8e_tuning tuning;
263   vp9e_tune_content content;
264 #if CONFIG_VP9_HIGHBITDEPTH
265   int use_highbitdepth;
266 #endif
267   vpx_color_space_t color_space;
268   vpx_color_range_t color_range;
269   int render_width;
270   int render_height;
271   VP9E_TEMPORAL_LAYERING_MODE temporal_layering_mode;
272 
273   int row_mt;
274   unsigned int motion_vector_unit_test;
275 } VP9EncoderConfig;
276 
is_lossless_requested(const VP9EncoderConfig * cfg)277 static INLINE int is_lossless_requested(const VP9EncoderConfig *cfg) {
278   return cfg->best_allowed_q == 0 && cfg->worst_allowed_q == 0;
279 }
280 
281 // TODO(jingning) All spatially adaptive variables should go to TileDataEnc.
282 typedef struct TileDataEnc {
283   TileInfo tile_info;
284   int thresh_freq_fact[BLOCK_SIZES][MAX_MODES];
285   int mode_map[BLOCK_SIZES][MAX_MODES];
286   FIRSTPASS_DATA fp_data;
287   VP9RowMTSync row_mt_sync;
288 
289   // Used for adaptive_rd_thresh with row multithreading
290   int *row_base_thresh_freq_fact;
291 } TileDataEnc;
292 
293 typedef struct RowMTInfo {
294   JobQueueHandle job_queue_hdl;
295 #if CONFIG_MULTITHREAD
296   pthread_mutex_t job_mutex;
297 #endif
298 } RowMTInfo;
299 
300 typedef struct {
301   TOKENEXTRA *start;
302   TOKENEXTRA *stop;
303   unsigned int count;
304 } TOKENLIST;
305 
306 typedef struct MultiThreadHandle {
307   int allocated_tile_rows;
308   int allocated_tile_cols;
309   int allocated_vert_unit_rows;
310 
311   // Frame level params
312   int num_tile_vert_sbs[MAX_NUM_TILE_ROWS];
313 
314   // Job Queue structure and handles
315   JobQueue *job_queue;
316 
317   int jobs_per_tile_col;
318 
319   RowMTInfo row_mt_info[MAX_NUM_TILE_COLS];
320   int thread_id_to_tile_id[MAX_NUM_THREADS];  // Mapping of threads to tiles
321 } MultiThreadHandle;
322 
323 typedef struct RD_COUNTS {
324   vp9_coeff_count coef_counts[TX_SIZES][PLANE_TYPES];
325   int64_t comp_pred_diff[REFERENCE_MODES];
326   int64_t filter_diff[SWITCHABLE_FILTER_CONTEXTS];
327 } RD_COUNTS;
328 
329 typedef struct ThreadData {
330   MACROBLOCK mb;
331   RD_COUNTS rd_counts;
332   FRAME_COUNTS *counts;
333 
334   PICK_MODE_CONTEXT *leaf_tree;
335   PC_TREE *pc_tree;
336   PC_TREE *pc_root;
337 } ThreadData;
338 
339 struct EncWorkerData;
340 
341 typedef struct ActiveMap {
342   int enabled;
343   int update;
344   unsigned char *map;
345 } ActiveMap;
346 
347 typedef enum { Y, U, V, ALL } STAT_TYPE;
348 
349 typedef struct IMAGE_STAT {
350   double stat[ALL + 1];
351   double worst;
352 } ImageStat;
353 
354 // Kf noise filtering currently disabled by default in build.
355 // #define ENABLE_KF_DENOISE 1
356 
357 #define CPB_WINDOW_SIZE 4
358 #define FRAME_WINDOW_SIZE 128
359 #define SAMPLE_RATE_GRACE_P 0.015
360 #define VP9_LEVELS 14
361 
362 typedef enum {
363   LEVEL_UNKNOWN = 0,
364   LEVEL_AUTO = 1,
365   LEVEL_1 = 10,
366   LEVEL_1_1 = 11,
367   LEVEL_2 = 20,
368   LEVEL_2_1 = 21,
369   LEVEL_3 = 30,
370   LEVEL_3_1 = 31,
371   LEVEL_4 = 40,
372   LEVEL_4_1 = 41,
373   LEVEL_5 = 50,
374   LEVEL_5_1 = 51,
375   LEVEL_5_2 = 52,
376   LEVEL_6 = 60,
377   LEVEL_6_1 = 61,
378   LEVEL_6_2 = 62,
379   LEVEL_MAX = 255
380 } VP9_LEVEL;
381 
382 typedef struct {
383   VP9_LEVEL level;
384   uint64_t max_luma_sample_rate;
385   uint32_t max_luma_picture_size;
386   uint32_t max_luma_picture_breadth;
387   double average_bitrate;  // in kilobits per second
388   double max_cpb_size;     // in kilobits
389   double compression_ratio;
390   uint8_t max_col_tiles;
391   uint32_t min_altref_distance;
392   uint8_t max_ref_frame_buffers;
393 } Vp9LevelSpec;
394 
395 extern const Vp9LevelSpec vp9_level_defs[VP9_LEVELS];
396 
397 typedef struct {
398   int64_t ts;  // timestamp
399   uint32_t luma_samples;
400   uint32_t size;  // in bytes
401 } FrameRecord;
402 
403 typedef struct {
404   FrameRecord buf[FRAME_WINDOW_SIZE];
405   uint8_t start;
406   uint8_t len;
407 } FrameWindowBuffer;
408 
409 typedef struct {
410   uint8_t seen_first_altref;
411   uint32_t frames_since_last_altref;
412   uint64_t total_compressed_size;
413   uint64_t total_uncompressed_size;
414   double time_encoded;  // in seconds
415   FrameWindowBuffer frame_window_buffer;
416   int ref_refresh_map;
417 } Vp9LevelStats;
418 
419 typedef struct {
420   Vp9LevelStats level_stats;
421   Vp9LevelSpec level_spec;
422 } Vp9LevelInfo;
423 
424 typedef enum {
425   BITRATE_TOO_LARGE = 0,
426   LUMA_PIC_SIZE_TOO_LARGE,
427   LUMA_PIC_BREADTH_TOO_LARGE,
428   LUMA_SAMPLE_RATE_TOO_LARGE,
429   CPB_TOO_LARGE,
430   COMPRESSION_RATIO_TOO_SMALL,
431   TOO_MANY_COLUMN_TILE,
432   ALTREF_DIST_TOO_SMALL,
433   TOO_MANY_REF_BUFFER,
434   TARGET_LEVEL_FAIL_IDS
435 } TARGET_LEVEL_FAIL_ID;
436 
437 typedef struct {
438   int8_t level_index;
439   uint8_t rc_config_updated;
440   uint8_t fail_flag;
441   int max_frame_size;   // in bits
442   double max_cpb_size;  // in bits
443 } LevelConstraint;
444 
445 typedef struct ARNRFilterData {
446   YV12_BUFFER_CONFIG *frames[MAX_LAG_BUFFERS];
447   int strength;
448   int frame_count;
449   int alt_ref_index;
450   struct scale_factors sf;
451 } ARNRFilterData;
452 
453 typedef struct VP9_COMP {
454   QUANTS quants;
455   ThreadData td;
456   MB_MODE_INFO_EXT *mbmi_ext_base;
457   DECLARE_ALIGNED(16, int16_t, y_dequant[QINDEX_RANGE][8]);
458   DECLARE_ALIGNED(16, int16_t, uv_dequant[QINDEX_RANGE][8]);
459   VP9_COMMON common;
460   VP9EncoderConfig oxcf;
461   struct lookahead_ctx *lookahead;
462   struct lookahead_entry *alt_ref_source;
463 
464   YV12_BUFFER_CONFIG *Source;
465   YV12_BUFFER_CONFIG *Last_Source;  // NULL for first frame and alt_ref frames
466   YV12_BUFFER_CONFIG *un_scaled_source;
467   YV12_BUFFER_CONFIG scaled_source;
468   YV12_BUFFER_CONFIG *unscaled_last_source;
469   YV12_BUFFER_CONFIG scaled_last_source;
470 #ifdef ENABLE_KF_DENOISE
471   YV12_BUFFER_CONFIG raw_unscaled_source;
472   YV12_BUFFER_CONFIG raw_scaled_source;
473 #endif
474   YV12_BUFFER_CONFIG *raw_source_frame;
475 
476   TileDataEnc *tile_data;
477   int allocated_tiles;  // Keep track of memory allocated for tiles.
478 
479   // For a still frame, this flag is set to 1 to skip partition search.
480   int partition_search_skippable_frame;
481 
482   int scaled_ref_idx[MAX_REF_FRAMES];
483   int lst_fb_idx;
484   int gld_fb_idx;
485   int alt_fb_idx;
486 
487   int refresh_last_frame;
488   int refresh_golden_frame;
489   int refresh_alt_ref_frame;
490 
491   int ext_refresh_frame_flags_pending;
492   int ext_refresh_last_frame;
493   int ext_refresh_golden_frame;
494   int ext_refresh_alt_ref_frame;
495 
496   int ext_refresh_frame_context_pending;
497   int ext_refresh_frame_context;
498 
499   YV12_BUFFER_CONFIG last_frame_uf;
500 
501   TOKENEXTRA *tile_tok[4][1 << 6];
502   uint32_t tok_count[4][1 << 6];
503   TOKENLIST *tplist[4][1 << 6];
504 
505   // Ambient reconstruction err target for force key frames
506   int64_t ambient_err;
507 
508   RD_OPT rd;
509 
510   CODING_CONTEXT coding_context;
511 
512   int *nmvcosts[2];
513   int *nmvcosts_hp[2];
514   int *nmvsadcosts[2];
515   int *nmvsadcosts_hp[2];
516 
517   int64_t last_time_stamp_seen;
518   int64_t last_end_time_stamp_seen;
519   int64_t first_time_stamp_ever;
520 
521   RATE_CONTROL rc;
522   double framerate;
523 
524   int interp_filter_selected[MAX_REF_FRAMES][SWITCHABLE];
525 
526   struct vpx_codec_pkt_list *output_pkt_list;
527 
528   MBGRAPH_FRAME_STATS mbgraph_stats[MAX_LAG_BUFFERS];
529   int mbgraph_n_frames;  // number of frames filled in the above
530   int static_mb_pct;     // % forced skip mbs by segmentation
531   int ref_frame_flags;
532 
533   SPEED_FEATURES sf;
534 
535   uint32_t max_mv_magnitude;
536   int mv_step_param;
537 
538   int allow_comp_inter_inter;
539 
540   // Default value is 1. From first pass stats, encode_breakout may be disabled.
541   ENCODE_BREAKOUT_TYPE allow_encode_breakout;
542 
543   // Get threshold from external input. A suggested threshold is 800 for HD
544   // clips, and 300 for < HD clips.
545   int encode_breakout;
546 
547   uint8_t *segmentation_map;
548 
549   uint8_t *skin_map;
550 
551   // segment threashold for encode breakout
552   int segment_encode_breakout[MAX_SEGMENTS];
553 
554   CYCLIC_REFRESH *cyclic_refresh;
555   ActiveMap active_map;
556 
557   fractional_mv_step_fp *find_fractional_mv_step;
558   vp9_diamond_search_fn_t diamond_search_sad;
559   vp9_variance_fn_ptr_t fn_ptr[BLOCK_SIZES];
560   uint64_t time_receive_data;
561   uint64_t time_compress_data;
562   uint64_t time_pick_lpf;
563   uint64_t time_encode_sb_row;
564 
565 #if CONFIG_FP_MB_STATS
566   int use_fp_mb_stats;
567 #endif
568 
569   TWO_PASS twopass;
570 
571   // Force recalculation of segment_ids for each mode info
572   uint8_t force_update_segmentation;
573 
574   YV12_BUFFER_CONFIG alt_ref_buffer;
575 
576   // class responsible for adaptive
577   // quantization of altref frames
578   struct ALT_REF_AQ *alt_ref_aq;
579 
580 #if CONFIG_INTERNAL_STATS
581   unsigned int mode_chosen_counts[MAX_MODES];
582 
583   int count;
584   uint64_t total_sq_error;
585   uint64_t total_samples;
586   ImageStat psnr;
587 
588   uint64_t totalp_sq_error;
589   uint64_t totalp_samples;
590   ImageStat psnrp;
591 
592   double total_blockiness;
593   double worst_blockiness;
594 
595   int bytes;
596   double summed_quality;
597   double summed_weights;
598   double summedp_quality;
599   double summedp_weights;
600   unsigned int tot_recode_hits;
601   double worst_ssim;
602 
603   ImageStat ssimg;
604   ImageStat fastssim;
605   ImageStat psnrhvs;
606 
607   int b_calculate_ssimg;
608   int b_calculate_blockiness;
609 
610   int b_calculate_consistency;
611 
612   double total_inconsistency;
613   double worst_consistency;
614   Ssimv *ssim_vars;
615   Metrics metrics;
616 #endif
617   int b_calculate_psnr;
618 
619   int droppable;
620 
621   int initial_width;
622   int initial_height;
623   int initial_mbs;  // Number of MBs in the full-size frame; to be used to
624                     // normalize the firstpass stats. This will differ from the
625                     // number of MBs in the current frame when the frame is
626                     // scaled.
627 
628   int use_svc;
629 
630   SVC svc;
631 
632   // Store frame variance info in SOURCE_VAR_BASED_PARTITION search type.
633   diff *source_diff_var;
634   // The threshold used in SOURCE_VAR_BASED_PARTITION search type.
635   unsigned int source_var_thresh;
636   int frames_till_next_var_check;
637 
638   int frame_flags;
639 
640   search_site_config ss_cfg;
641 
642   int mbmode_cost[INTRA_MODES];
643   unsigned int inter_mode_cost[INTER_MODE_CONTEXTS][INTER_MODES];
644   int intra_uv_mode_cost[FRAME_TYPES][INTRA_MODES][INTRA_MODES];
645   int y_mode_costs[INTRA_MODES][INTRA_MODES][INTRA_MODES];
646   int switchable_interp_costs[SWITCHABLE_FILTER_CONTEXTS][SWITCHABLE_FILTERS];
647   int partition_cost[PARTITION_CONTEXTS][PARTITION_TYPES];
648 
649   int multi_arf_allowed;
650   int multi_arf_enabled;
651   int multi_arf_last_grp_enabled;
652 
653 #if CONFIG_VP9_TEMPORAL_DENOISING
654   VP9_DENOISER denoiser;
655 #endif
656 
657   int resize_pending;
658   RESIZE_STATE resize_state;
659   int external_resize;
660   int resize_scale_num;
661   int resize_scale_den;
662   int resize_avg_qp;
663   int resize_buffer_underflow;
664   int resize_count;
665 
666   int use_skin_detection;
667 
668   int target_level;
669 
670   NOISE_ESTIMATE noise_estimate;
671 
672   // Count on how many consecutive times a block uses small/zeromv for encoding.
673   uint8_t *consec_zero_mv;
674 
675   // VAR_BASED_PARTITION thresholds
676   // 0 - threshold_64x64; 1 - threshold_32x32;
677   // 2 - threshold_16x16; 3 - vbp_threshold_8x8;
678   int64_t vbp_thresholds[4];
679   int64_t vbp_threshold_minmax;
680   int64_t vbp_threshold_sad;
681   // Threshold used for partition copy
682   int64_t vbp_threshold_copy;
683   BLOCK_SIZE vbp_bsize_min;
684 
685   // Multi-threading
686   int num_workers;
687   VPxWorker *workers;
688   struct EncWorkerData *tile_thr_data;
689   VP9LfSync lf_row_sync;
690   struct VP9BitstreamWorkerData *vp9_bitstream_worker_data;
691 
692   int keep_level_stats;
693   Vp9LevelInfo level_info;
694   MultiThreadHandle multi_thread_ctxt;
695   void (*row_mt_sync_read_ptr)(VP9RowMTSync *const, int, int);
696   void (*row_mt_sync_write_ptr)(VP9RowMTSync *const, int, int, const int);
697   ARNRFilterData arnr_filter_data;
698 
699   int row_mt;
700   unsigned int row_mt_bit_exact;
701 
702   // Previous Partition Info
703   BLOCK_SIZE *prev_partition;
704   int8_t *prev_segment_id;
705   // Used to save the status of whether a block has a low variance in
706   // choose_partitioning. 0 for 64x64, 1~2 for 64x32, 3~4 for 32x64, 5~8 for
707   // 32x32, 9~24 for 16x16.
708   // This is for the last frame and is copied to the current frame
709   // when partition copy happens.
710   uint8_t *prev_variance_low;
711   uint8_t *copied_frame_cnt;
712   uint8_t max_copied_frame;
713   // If the last frame is dropped, we don't copy partition.
714   uint8_t last_frame_dropped;
715 
716   // For each superblock: keeps track of the last time (in frame distance) the
717   // the superblock did not have low source sad.
718   uint8_t *content_state_sb_fd;
719 
720   int compute_source_sad_onepass;
721 
722   LevelConstraint level_constraint;
723 
724   uint8_t *count_arf_frame_usage;
725   uint8_t *count_lastgolden_frame_usage;
726 } VP9_COMP;
727 
728 void vp9_initialize_enc(void);
729 
730 struct VP9_COMP *vp9_create_compressor(VP9EncoderConfig *oxcf,
731                                        BufferPool *const pool);
732 void vp9_remove_compressor(VP9_COMP *cpi);
733 
734 void vp9_change_config(VP9_COMP *cpi, const VP9EncoderConfig *oxcf);
735 
736 // receive a frames worth of data. caller can assume that a copy of this
737 // frame is made and not just a copy of the pointer..
738 int vp9_receive_raw_frame(VP9_COMP *cpi, vpx_enc_frame_flags_t frame_flags,
739                           YV12_BUFFER_CONFIG *sd, int64_t time_stamp,
740                           int64_t end_time_stamp);
741 
742 int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags,
743                             size_t *size, uint8_t *dest, int64_t *time_stamp,
744                             int64_t *time_end, int flush);
745 
746 int vp9_get_preview_raw_frame(VP9_COMP *cpi, YV12_BUFFER_CONFIG *dest,
747                               vp9_ppflags_t *flags);
748 
749 int vp9_use_as_reference(VP9_COMP *cpi, int ref_frame_flags);
750 
751 void vp9_update_reference(VP9_COMP *cpi, int ref_frame_flags);
752 
753 int vp9_copy_reference_enc(VP9_COMP *cpi, VP9_REFFRAME ref_frame_flag,
754                            YV12_BUFFER_CONFIG *sd);
755 
756 int vp9_set_reference_enc(VP9_COMP *cpi, VP9_REFFRAME ref_frame_flag,
757                           YV12_BUFFER_CONFIG *sd);
758 
759 int vp9_update_entropy(VP9_COMP *cpi, int update);
760 
761 int vp9_set_active_map(VP9_COMP *cpi, unsigned char *map, int rows, int cols);
762 
763 int vp9_get_active_map(VP9_COMP *cpi, unsigned char *map, int rows, int cols);
764 
765 int vp9_set_internal_size(VP9_COMP *cpi, VPX_SCALING horiz_mode,
766                           VPX_SCALING vert_mode);
767 
768 int vp9_set_size_literal(VP9_COMP *cpi, unsigned int width,
769                          unsigned int height);
770 
771 void vp9_set_svc(VP9_COMP *cpi, int use_svc);
772 
773 int vp9_get_quantizer(struct VP9_COMP *cpi);
774 
frame_is_kf_gf_arf(const VP9_COMP * cpi)775 static INLINE int frame_is_kf_gf_arf(const VP9_COMP *cpi) {
776   return frame_is_intra_only(&cpi->common) || cpi->refresh_alt_ref_frame ||
777          (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref);
778 }
779 
get_ref_frame_map_idx(const VP9_COMP * cpi,MV_REFERENCE_FRAME ref_frame)780 static INLINE int get_ref_frame_map_idx(const VP9_COMP *cpi,
781                                         MV_REFERENCE_FRAME ref_frame) {
782   if (ref_frame == LAST_FRAME) {
783     return cpi->lst_fb_idx;
784   } else if (ref_frame == GOLDEN_FRAME) {
785     return cpi->gld_fb_idx;
786   } else {
787     return cpi->alt_fb_idx;
788   }
789 }
790 
get_ref_frame_buf_idx(const VP9_COMP * const cpi,int ref_frame)791 static INLINE int get_ref_frame_buf_idx(const VP9_COMP *const cpi,
792                                         int ref_frame) {
793   const VP9_COMMON *const cm = &cpi->common;
794   const int map_idx = get_ref_frame_map_idx(cpi, ref_frame);
795   return (map_idx != INVALID_IDX) ? cm->ref_frame_map[map_idx] : INVALID_IDX;
796 }
797 
get_ref_frame_buffer(VP9_COMP * cpi,MV_REFERENCE_FRAME ref_frame)798 static INLINE YV12_BUFFER_CONFIG *get_ref_frame_buffer(
799     VP9_COMP *cpi, MV_REFERENCE_FRAME ref_frame) {
800   VP9_COMMON *const cm = &cpi->common;
801   const int buf_idx = get_ref_frame_buf_idx(cpi, ref_frame);
802   return buf_idx != INVALID_IDX ? &cm->buffer_pool->frame_bufs[buf_idx].buf
803                                 : NULL;
804 }
805 
get_token_alloc(int mb_rows,int mb_cols)806 static INLINE int get_token_alloc(int mb_rows, int mb_cols) {
807   // TODO(JBB): double check we can't exceed this token count if we have a
808   // 32x32 transform crossing a boundary at a multiple of 16.
809   // mb_rows, cols are in units of 16 pixels. We assume 3 planes all at full
810   // resolution. We assume up to 1 token per pixel, and then allow
811   // a head room of 4.
812   return mb_rows * mb_cols * (16 * 16 * 3 + 4);
813 }
814 
815 // Get the allocated token size for a tile. It does the same calculation as in
816 // the frame token allocation.
allocated_tokens(TileInfo tile)817 static INLINE int allocated_tokens(TileInfo tile) {
818   int tile_mb_rows = (tile.mi_row_end - tile.mi_row_start + 1) >> 1;
819   int tile_mb_cols = (tile.mi_col_end - tile.mi_col_start + 1) >> 1;
820 
821   return get_token_alloc(tile_mb_rows, tile_mb_cols);
822 }
823 
get_start_tok(VP9_COMP * cpi,int tile_row,int tile_col,int mi_row,TOKENEXTRA ** tok)824 static INLINE void get_start_tok(VP9_COMP *cpi, int tile_row, int tile_col,
825                                  int mi_row, TOKENEXTRA **tok) {
826   VP9_COMMON *const cm = &cpi->common;
827   const int tile_cols = 1 << cm->log2_tile_cols;
828   TileDataEnc *this_tile = &cpi->tile_data[tile_row * tile_cols + tile_col];
829   const TileInfo *const tile_info = &this_tile->tile_info;
830 
831   int tile_mb_cols = (tile_info->mi_col_end - tile_info->mi_col_start + 1) >> 1;
832   const int mb_row = (mi_row - tile_info->mi_row_start) >> 1;
833 
834   *tok =
835       cpi->tile_tok[tile_row][tile_col] + get_token_alloc(mb_row, tile_mb_cols);
836 }
837 
838 int64_t vp9_get_y_sse(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b);
839 #if CONFIG_VP9_HIGHBITDEPTH
840 int64_t vp9_highbd_get_y_sse(const YV12_BUFFER_CONFIG *a,
841                              const YV12_BUFFER_CONFIG *b);
842 #endif  // CONFIG_VP9_HIGHBITDEPTH
843 
844 void vp9_scale_references(VP9_COMP *cpi);
845 
846 void vp9_update_reference_frames(VP9_COMP *cpi);
847 
848 void vp9_set_high_precision_mv(VP9_COMP *cpi, int allow_high_precision_mv);
849 
850 YV12_BUFFER_CONFIG *vp9_svc_twostage_scale(
851     VP9_COMMON *cm, YV12_BUFFER_CONFIG *unscaled, YV12_BUFFER_CONFIG *scaled,
852     YV12_BUFFER_CONFIG *scaled_temp, INTERP_FILTER filter_type,
853     int phase_scaler, INTERP_FILTER filter_type2, int phase_scaler2);
854 
855 YV12_BUFFER_CONFIG *vp9_scale_if_required(
856     VP9_COMMON *cm, YV12_BUFFER_CONFIG *unscaled, YV12_BUFFER_CONFIG *scaled,
857     int use_normative_scaler, INTERP_FILTER filter_type, int phase_scaler);
858 
859 void vp9_apply_encoding_flags(VP9_COMP *cpi, vpx_enc_frame_flags_t flags);
860 
is_two_pass_svc(const struct VP9_COMP * const cpi)861 static INLINE int is_two_pass_svc(const struct VP9_COMP *const cpi) {
862   return cpi->use_svc && cpi->oxcf.pass != 0;
863 }
864 
is_one_pass_cbr_svc(const struct VP9_COMP * const cpi)865 static INLINE int is_one_pass_cbr_svc(const struct VP9_COMP *const cpi) {
866   return (cpi->use_svc && cpi->oxcf.pass == 0);
867 }
868 
869 #if CONFIG_VP9_TEMPORAL_DENOISING
denoise_svc(const struct VP9_COMP * const cpi)870 static INLINE int denoise_svc(const struct VP9_COMP *const cpi) {
871   return (!cpi->use_svc ||
872           (cpi->use_svc &&
873            cpi->svc.spatial_layer_id >= cpi->svc.first_layer_denoise));
874 }
875 #endif
876 
877 #define MIN_LOOKAHEAD_FOR_ARFS 4
is_altref_enabled(const VP9_COMP * const cpi)878 static INLINE int is_altref_enabled(const VP9_COMP *const cpi) {
879   return !(cpi->oxcf.mode == REALTIME && cpi->oxcf.rc_mode == VPX_CBR) &&
880          cpi->oxcf.lag_in_frames >= MIN_LOOKAHEAD_FOR_ARFS &&
881          (cpi->oxcf.enable_auto_arf &&
882           (!is_two_pass_svc(cpi) ||
883            cpi->oxcf.ss_enable_auto_arf[cpi->svc.spatial_layer_id]));
884 }
885 
set_ref_ptrs(VP9_COMMON * cm,MACROBLOCKD * xd,MV_REFERENCE_FRAME ref0,MV_REFERENCE_FRAME ref1)886 static INLINE void set_ref_ptrs(VP9_COMMON *cm, MACROBLOCKD *xd,
887                                 MV_REFERENCE_FRAME ref0,
888                                 MV_REFERENCE_FRAME ref1) {
889   xd->block_refs[0] =
890       &cm->frame_refs[ref0 >= LAST_FRAME ? ref0 - LAST_FRAME : 0];
891   xd->block_refs[1] =
892       &cm->frame_refs[ref1 >= LAST_FRAME ? ref1 - LAST_FRAME : 0];
893 }
894 
get_chessboard_index(const int frame_index)895 static INLINE int get_chessboard_index(const int frame_index) {
896   return frame_index & 0x1;
897 }
898 
cond_cost_list(const struct VP9_COMP * cpi,int * cost_list)899 static INLINE int *cond_cost_list(const struct VP9_COMP *cpi, int *cost_list) {
900   return cpi->sf.mv.subpel_search_method != SUBPEL_TREE ? cost_list : NULL;
901 }
902 
get_num_vert_units(TileInfo tile,int shift)903 static INLINE int get_num_vert_units(TileInfo tile, int shift) {
904   int num_vert_units =
905       (tile.mi_row_end - tile.mi_row_start + (1 << shift) - 1) >> shift;
906   return num_vert_units;
907 }
908 
get_num_cols(TileInfo tile,int shift)909 static INLINE int get_num_cols(TileInfo tile, int shift) {
910   int num_cols =
911       (tile.mi_col_end - tile.mi_col_start + (1 << shift) - 1) >> shift;
912   return num_cols;
913 }
914 
get_level_index(VP9_LEVEL level)915 static INLINE int get_level_index(VP9_LEVEL level) {
916   int i;
917   for (i = 0; i < VP9_LEVELS; ++i) {
918     if (level == vp9_level_defs[i].level) return i;
919   }
920   return -1;
921 }
922 
923 // Return the log2 value of max column tiles corresponding to the level that
924 // the picture size fits into.
log_tile_cols_from_picsize_level(uint32_t width,uint32_t height)925 static INLINE int log_tile_cols_from_picsize_level(uint32_t width,
926                                                    uint32_t height) {
927   int i;
928   const uint32_t pic_size = width * height;
929   const uint32_t pic_breadth = VPXMAX(width, height);
930   for (i = LEVEL_1; i < LEVEL_MAX; ++i) {
931     if (vp9_level_defs[i].max_luma_picture_size >= pic_size &&
932         vp9_level_defs[i].max_luma_picture_breadth >= pic_breadth) {
933       return get_msb(vp9_level_defs[i].max_col_tiles);
934     }
935   }
936   return INT_MAX;
937 }
938 
939 VP9_LEVEL vp9_get_level(const Vp9LevelSpec *const level_spec);
940 
941 void vp9_new_framerate(VP9_COMP *cpi, double framerate);
942 
943 void vp9_set_row_mt(VP9_COMP *cpi);
944 
945 #define LAYER_IDS_TO_IDX(sl, tl, num_tl) ((sl) * (num_tl) + (tl))
946 
947 #ifdef __cplusplus
948 }  // extern "C"
949 #endif
950 
951 #endif  // VP9_ENCODER_VP9_ENCODER_H_
952