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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 
     12 #ifndef __INC_VP8_INT_H
     13 #define __INC_VP8_INT_H
     14 
     15 #include <stdio.h>
     16 #include "vpx_config.h"
     17 #include "vp8/common/onyx.h"
     18 #include "treewriter.h"
     19 #include "tokenize.h"
     20 #include "vp8/common/onyxc_int.h"
     21 #include "vp8/common/variance.h"
     22 #include "encodemb.h"
     23 #include "quantize.h"
     24 #include "vp8/common/entropy.h"
     25 #include "vp8/common/threading.h"
     26 #include "vpx_ports/mem.h"
     27 #include "vpx/internal/vpx_codec_internal.h"
     28 #include "vpx/vp8.h"
     29 #include "mcomp.h"
     30 #include "vp8/common/findnearmv.h"
     31 #include "lookahead.h"
     32 #if CONFIG_TEMPORAL_DENOISING
     33 #include "vp8/encoder/denoising.h"
     34 #endif
     35 
     36 #define MIN_GF_INTERVAL             4
     37 #define DEFAULT_GF_INTERVAL         7
     38 
     39 #define KEY_FRAME_CONTEXT 5
     40 
     41 #define MAX_LAG_BUFFERS (CONFIG_REALTIME_ONLY? 1 : 25)
     42 
     43 #define AF_THRESH   25
     44 #define AF_THRESH2  100
     45 #define ARF_DECAY_THRESH 12
     46 
     47 
     48 #define MIN_THRESHMULT  32
     49 #define MAX_THRESHMULT  512
     50 
     51 #define GF_ZEROMV_ZBIN_BOOST 12
     52 #define LF_ZEROMV_ZBIN_BOOST 6
     53 #define MV_ZBIN_BOOST        4
     54 #define ZBIN_OQ_MAX 192
     55 
     56 #if !(CONFIG_REALTIME_ONLY)
     57 #define VP8_TEMPORAL_ALT_REF 1
     58 #endif
     59 
     60 #define MAX(x,y) (((x)>(y))?(x):(y))
     61 #define MIN(x,y) (((x)<(y))?(x):(y))
     62 
     63 typedef struct
     64 {
     65     int kf_indicated;
     66     unsigned int frames_since_key;
     67     unsigned int frames_since_golden;
     68     int filter_level;
     69     int frames_till_gf_update_due;
     70     int recent_ref_frame_usage[MAX_REF_FRAMES];
     71 
     72     MV_CONTEXT mvc[2];
     73     int mvcosts[2][MVvals+1];
     74 
     75 #ifdef MODE_STATS
     76     int y_modes[5];
     77     int uv_modes[4];
     78     int b_modes[10];
     79     int inter_y_modes[10];
     80     int inter_uv_modes[4];
     81     int inter_b_modes[10];
     82 #endif
     83 
     84     vp8_prob ymode_prob[4], uv_mode_prob[3];   /* interframe intra mode probs */
     85     vp8_prob kf_ymode_prob[4], kf_uv_mode_prob[3];   /* keyframe "" */
     86 
     87     int ymode_count[5], uv_mode_count[4];  /* intra MB type cts this frame */
     88 
     89     int count_mb_ref_frame_usage[MAX_REF_FRAMES];
     90 
     91     int this_frame_percent_intra;
     92     int last_frame_percent_intra;
     93 
     94 
     95 } CODING_CONTEXT;
     96 
     97 typedef struct
     98 {
     99     double frame;
    100     double intra_error;
    101     double coded_error;
    102     double ssim_weighted_pred_err;
    103     double pcnt_inter;
    104     double pcnt_motion;
    105     double pcnt_second_ref;
    106     double pcnt_neutral;
    107     double MVr;
    108     double mvr_abs;
    109     double MVc;
    110     double mvc_abs;
    111     double MVrv;
    112     double MVcv;
    113     double mv_in_out_count;
    114     double new_mv_count;
    115     double duration;
    116     double count;
    117 }
    118 FIRSTPASS_STATS;
    119 
    120 typedef struct
    121 {
    122     int frames_so_far;
    123     double frame_intra_error;
    124     double frame_coded_error;
    125     double frame_pcnt_inter;
    126     double frame_pcnt_motion;
    127     double frame_mvr;
    128     double frame_mvr_abs;
    129     double frame_mvc;
    130     double frame_mvc_abs;
    131 
    132 } ONEPASS_FRAMESTATS;
    133 
    134 
    135 typedef enum
    136 {
    137     THR_ZERO1          = 0,
    138     THR_DC             = 1,
    139 
    140     THR_NEAREST1       = 2,
    141     THR_NEAR1          = 3,
    142 
    143     THR_ZERO2          = 4,
    144     THR_NEAREST2       = 5,
    145 
    146     THR_ZERO3          = 6,
    147     THR_NEAREST3       = 7,
    148 
    149     THR_NEAR2          = 8,
    150     THR_NEAR3          = 9,
    151 
    152     THR_V_PRED         = 10,
    153     THR_H_PRED         = 11,
    154     THR_TM             = 12,
    155 
    156     THR_NEW1           = 13,
    157     THR_NEW2           = 14,
    158     THR_NEW3           = 15,
    159 
    160     THR_SPLIT1         = 16,
    161     THR_SPLIT2         = 17,
    162     THR_SPLIT3         = 18,
    163 
    164     THR_B_PRED         = 19
    165 }
    166 THR_MODES;
    167 
    168 typedef enum
    169 {
    170     DIAMOND = 0,
    171     NSTEP = 1,
    172     HEX = 2
    173 } SEARCH_METHODS;
    174 
    175 typedef struct
    176 {
    177     int RD;
    178     SEARCH_METHODS search_method;
    179     int improved_quant;
    180     int improved_dct;
    181     int auto_filter;
    182     int recode_loop;
    183     int iterative_sub_pixel;
    184     int half_pixel_search;
    185     int quarter_pixel_search;
    186     int thresh_mult[MAX_MODES];
    187     int max_step_search_steps;
    188     int first_step;
    189     int optimize_coefficients;
    190 
    191     int use_fastquant_for_pick;
    192     int no_skip_block4x4_search;
    193     int improved_mv_pred;
    194 
    195 } SPEED_FEATURES;
    196 
    197 typedef struct
    198 {
    199     MACROBLOCK  mb;
    200     int segment_counts[MAX_MB_SEGMENTS];
    201     int totalrate;
    202 } MB_ROW_COMP;
    203 
    204 typedef struct
    205 {
    206     TOKENEXTRA *start;
    207     TOKENEXTRA *stop;
    208 } TOKENLIST;
    209 
    210 typedef struct
    211 {
    212     int ithread;
    213     void *ptr1;
    214     void *ptr2;
    215 } ENCODETHREAD_DATA;
    216 typedef struct
    217 {
    218     int ithread;
    219     void *ptr1;
    220 } LPFTHREAD_DATA;
    221 
    222 enum
    223 {
    224     BLOCK_16X8,
    225     BLOCK_8X16,
    226     BLOCK_8X8,
    227     BLOCK_4X4,
    228     BLOCK_16X16,
    229     BLOCK_MAX_SEGMENTS
    230 };
    231 
    232 typedef struct
    233 {
    234     /* Layer configuration */
    235     double framerate;
    236     int target_bandwidth;
    237 
    238     /* Layer specific coding parameters */
    239     int64_t starting_buffer_level;
    240     int64_t optimal_buffer_level;
    241     int64_t maximum_buffer_size;
    242     int64_t starting_buffer_level_in_ms;
    243     int64_t optimal_buffer_level_in_ms;
    244     int64_t maximum_buffer_size_in_ms;
    245 
    246     int avg_frame_size_for_layer;
    247 
    248     int64_t buffer_level;
    249     int64_t bits_off_target;
    250 
    251     int64_t total_actual_bits;
    252     int total_target_vs_actual;
    253 
    254     int worst_quality;
    255     int active_worst_quality;
    256     int best_quality;
    257     int active_best_quality;
    258 
    259     int ni_av_qi;
    260     int ni_tot_qi;
    261     int ni_frames;
    262     int avg_frame_qindex;
    263 
    264     double rate_correction_factor;
    265     double key_frame_rate_correction_factor;
    266     double gf_rate_correction_factor;
    267 
    268     int zbin_over_quant;
    269 
    270     int inter_frame_target;
    271     int64_t total_byte_count;
    272 
    273     int filter_level;
    274 
    275     int last_frame_percent_intra;
    276 
    277     int count_mb_ref_frame_usage[MAX_REF_FRAMES];
    278 
    279 } LAYER_CONTEXT;
    280 
    281 typedef struct VP8_COMP
    282 {
    283 
    284     DECLARE_ALIGNED(16, short, Y1quant[QINDEX_RANGE][16]);
    285     DECLARE_ALIGNED(16, short, Y1quant_shift[QINDEX_RANGE][16]);
    286     DECLARE_ALIGNED(16, short, Y1zbin[QINDEX_RANGE][16]);
    287     DECLARE_ALIGNED(16, short, Y1round[QINDEX_RANGE][16]);
    288 
    289     DECLARE_ALIGNED(16, short, Y2quant[QINDEX_RANGE][16]);
    290     DECLARE_ALIGNED(16, short, Y2quant_shift[QINDEX_RANGE][16]);
    291     DECLARE_ALIGNED(16, short, Y2zbin[QINDEX_RANGE][16]);
    292     DECLARE_ALIGNED(16, short, Y2round[QINDEX_RANGE][16]);
    293 
    294     DECLARE_ALIGNED(16, short, UVquant[QINDEX_RANGE][16]);
    295     DECLARE_ALIGNED(16, short, UVquant_shift[QINDEX_RANGE][16]);
    296     DECLARE_ALIGNED(16, short, UVzbin[QINDEX_RANGE][16]);
    297     DECLARE_ALIGNED(16, short, UVround[QINDEX_RANGE][16]);
    298 
    299     DECLARE_ALIGNED(16, short, zrun_zbin_boost_y1[QINDEX_RANGE][16]);
    300     DECLARE_ALIGNED(16, short, zrun_zbin_boost_y2[QINDEX_RANGE][16]);
    301     DECLARE_ALIGNED(16, short, zrun_zbin_boost_uv[QINDEX_RANGE][16]);
    302     DECLARE_ALIGNED(16, short, Y1quant_fast[QINDEX_RANGE][16]);
    303     DECLARE_ALIGNED(16, short, Y2quant_fast[QINDEX_RANGE][16]);
    304     DECLARE_ALIGNED(16, short, UVquant_fast[QINDEX_RANGE][16]);
    305 
    306 
    307     MACROBLOCK mb;
    308     VP8_COMMON common;
    309     vp8_writer bc[9]; /* one boolcoder for each partition */
    310 
    311     VP8_CONFIG oxcf;
    312 
    313     struct lookahead_ctx    *lookahead;
    314     struct lookahead_entry  *source;
    315     struct lookahead_entry  *alt_ref_source;
    316     struct lookahead_entry  *last_source;
    317 
    318     YV12_BUFFER_CONFIG *Source;
    319     YV12_BUFFER_CONFIG *un_scaled_source;
    320     YV12_BUFFER_CONFIG scaled_source;
    321     YV12_BUFFER_CONFIG *last_frame_unscaled_source;
    322 
    323     unsigned int frames_till_alt_ref_frame;
    324     /* frame in src_buffers has been identified to be encoded as an alt ref */
    325     int source_alt_ref_pending;
    326     /* an alt ref frame has been encoded and is usable */
    327     int source_alt_ref_active;
    328     /* source of frame to encode is an exact copy of an alt ref frame */
    329     int is_src_frame_alt_ref;
    330 
    331     /* golden frame same as last frame ( short circuit gold searches) */
    332     int gold_is_last;
    333     /* Alt reference frame same as last ( short circuit altref search) */
    334     int alt_is_last;
    335     /* don't do both alt and gold search ( just do gold). */
    336     int gold_is_alt;
    337 
    338     YV12_BUFFER_CONFIG pick_lf_lvl_frame;
    339 
    340     TOKENEXTRA *tok;
    341     unsigned int tok_count;
    342 
    343 
    344     unsigned int frames_since_key;
    345     unsigned int key_frame_frequency;
    346     unsigned int this_key_frame_forced;
    347     unsigned int next_key_frame_forced;
    348 
    349     /* Ambient reconstruction err target for force key frames */
    350     int ambient_err;
    351 
    352     unsigned int mode_check_freq[MAX_MODES];
    353 
    354     int rd_baseline_thresh[MAX_MODES];
    355 
    356     int RDMULT;
    357     int RDDIV ;
    358 
    359     CODING_CONTEXT coding_context;
    360 
    361     /* Rate targetting variables */
    362     int64_t last_prediction_error;
    363     int64_t last_intra_error;
    364 
    365     int this_frame_target;
    366     int projected_frame_size;
    367     int last_q[2];                   /* Separate values for Intra/Inter */
    368 
    369     double rate_correction_factor;
    370     double key_frame_rate_correction_factor;
    371     double gf_rate_correction_factor;
    372 
    373     unsigned int frames_since_golden;
    374     /* Count down till next GF */
    375     int frames_till_gf_update_due;
    376 
    377     /* GF interval chosen when we coded the last GF */
    378     int current_gf_interval;
    379 
    380     /* Total bits overspent becasue of GF boost (cumulative) */
    381     int gf_overspend_bits;
    382 
    383     /* Used in the few frames following a GF to recover the extra bits
    384      * spent in that GF
    385      */
    386     int non_gf_bitrate_adjustment;
    387 
    388     /* Extra bits spent on key frames that need to be recovered */
    389     int kf_overspend_bits;
    390 
    391     /* Current number of bit s to try and recover on each inter frame. */
    392     int kf_bitrate_adjustment;
    393     int max_gf_interval;
    394     int baseline_gf_interval;
    395     int active_arnr_frames;
    396 
    397     int64_t key_frame_count;
    398     int prior_key_frame_distance[KEY_FRAME_CONTEXT];
    399     /* Current section per frame bandwidth target */
    400     int per_frame_bandwidth;
    401     /* Average frame size target for clip */
    402     int av_per_frame_bandwidth;
    403     /* Minimum allocation that should be used for any frame */
    404     int min_frame_bandwidth;
    405     int inter_frame_target;
    406     double output_framerate;
    407     int64_t last_time_stamp_seen;
    408     int64_t last_end_time_stamp_seen;
    409     int64_t first_time_stamp_ever;
    410 
    411     int ni_av_qi;
    412     int ni_tot_qi;
    413     int ni_frames;
    414     int avg_frame_qindex;
    415 
    416     int64_t total_byte_count;
    417 
    418     int buffered_mode;
    419 
    420     double framerate;
    421     double ref_framerate;
    422     int64_t buffer_level;
    423     int64_t bits_off_target;
    424 
    425     int rolling_target_bits;
    426     int rolling_actual_bits;
    427 
    428     int long_rolling_target_bits;
    429     int long_rolling_actual_bits;
    430 
    431     int64_t total_actual_bits;
    432     int total_target_vs_actual; /* debug stats */
    433 
    434     int worst_quality;
    435     int active_worst_quality;
    436     int best_quality;
    437     int active_best_quality;
    438 
    439     int cq_target_quality;
    440 
    441     int drop_frames_allowed; /* Are we permitted to drop frames? */
    442     int drop_frame;          /* Drop this frame? */
    443 
    444     vp8_prob frame_coef_probs [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES];
    445     char update_probs [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES];
    446 
    447     unsigned int frame_branch_ct [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES][2];
    448 
    449     int gfu_boost;
    450     int kf_boost;
    451     int last_boost;
    452 
    453     int target_bandwidth;
    454     struct vpx_codec_pkt_list  *output_pkt_list;
    455 
    456 #if 0
    457     /* Experimental code for lagged and one pass */
    458     ONEPASS_FRAMESTATS one_pass_frame_stats[MAX_LAG_BUFFERS];
    459     int one_pass_frame_index;
    460 #endif
    461 
    462     int decimation_factor;
    463     int decimation_count;
    464 
    465     /* for real time encoding */
    466     int avg_encode_time;     /* microsecond */
    467     int avg_pick_mode_time;  /* microsecond */
    468     int Speed;
    469     int compressor_speed;
    470 
    471     int auto_gold;
    472     int auto_adjust_gold_quantizer;
    473     int auto_worst_q;
    474     int cpu_used;
    475     int pass;
    476 
    477 
    478     int prob_intra_coded;
    479     int prob_last_coded;
    480     int prob_gf_coded;
    481     int prob_skip_false;
    482     int last_skip_false_probs[3];
    483     int last_skip_probs_q[3];
    484     int recent_ref_frame_usage[MAX_REF_FRAMES];
    485 
    486     int this_frame_percent_intra;
    487     int last_frame_percent_intra;
    488 
    489     int ref_frame_flags;
    490 
    491     SPEED_FEATURES sf;
    492 
    493     /* Count ZEROMV on all reference frames. */
    494     int zeromv_count;
    495     int lf_zeromv_pct;
    496 
    497     unsigned char *segmentation_map;
    498     signed char segment_feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS];
    499     int  segment_encode_breakout[MAX_MB_SEGMENTS];
    500 
    501     unsigned char *active_map;
    502     unsigned int active_map_enabled;
    503 
    504     /* Video conferencing cyclic refresh mode flags. This is a mode
    505      * designed to clean up the background over time in live encoding
    506      * scenarious. It uses segmentation.
    507      */
    508     int cyclic_refresh_mode_enabled;
    509     int cyclic_refresh_mode_max_mbs_perframe;
    510     int cyclic_refresh_mode_index;
    511     int cyclic_refresh_q;
    512     signed char *cyclic_refresh_map;
    513 
    514     // Frame counter for the temporal pattern. Counter is rest when the temporal
    515     // layers are changed dynamically (run-time change).
    516     unsigned int temporal_pattern_counter;
    517 
    518 #if CONFIG_MULTITHREAD
    519     /* multithread data */
    520     int * mt_current_mb_col;
    521     int mt_sync_range;
    522     int b_multi_threaded;
    523     int encoding_thread_count;
    524     int b_lpf_running;
    525 
    526     pthread_t *h_encoding_thread;
    527     pthread_t h_filter_thread;
    528 
    529     MB_ROW_COMP *mb_row_ei;
    530     ENCODETHREAD_DATA *en_thread_data;
    531     LPFTHREAD_DATA lpf_thread_data;
    532 
    533     /* events */
    534     sem_t *h_event_start_encoding;
    535     sem_t h_event_end_encoding;
    536     sem_t h_event_start_lpf;
    537     sem_t h_event_end_lpf;
    538 #endif
    539 
    540     TOKENLIST *tplist;
    541     unsigned int partition_sz[MAX_PARTITIONS];
    542     unsigned char *partition_d[MAX_PARTITIONS];
    543     unsigned char *partition_d_end[MAX_PARTITIONS];
    544 
    545 
    546     fractional_mv_step_fp *find_fractional_mv_step;
    547     vp8_full_search_fn_t full_search_sad;
    548     vp8_refining_search_fn_t refining_search_sad;
    549     vp8_diamond_search_fn_t diamond_search_sad;
    550     vp8_variance_fn_ptr_t fn_ptr[BLOCK_MAX_SEGMENTS];
    551     uint64_t time_receive_data;
    552     uint64_t time_compress_data;
    553     uint64_t time_pick_lpf;
    554     uint64_t time_encode_mb_row;
    555 
    556     int base_skip_false_prob[128];
    557 
    558     FRAME_CONTEXT lfc_n; /* last frame entropy */
    559     FRAME_CONTEXT lfc_a; /* last alt ref entropy */
    560     FRAME_CONTEXT lfc_g; /* last gold ref entropy */
    561 
    562 
    563     struct twopass_rc
    564     {
    565         unsigned int section_intra_rating;
    566         double section_max_qfactor;
    567         unsigned int next_iiratio;
    568         unsigned int this_iiratio;
    569         FIRSTPASS_STATS total_stats;
    570         FIRSTPASS_STATS this_frame_stats;
    571         FIRSTPASS_STATS *stats_in, *stats_in_end, *stats_in_start;
    572         FIRSTPASS_STATS total_left_stats;
    573         int first_pass_done;
    574         int64_t bits_left;
    575         int64_t clip_bits_total;
    576         double avg_iiratio;
    577         double modified_error_total;
    578         double modified_error_used;
    579         double modified_error_left;
    580         double kf_intra_err_min;
    581         double gf_intra_err_min;
    582         int frames_to_key;
    583         int maxq_max_limit;
    584         int maxq_min_limit;
    585         int gf_decay_rate;
    586         int static_scene_max_gf_interval;
    587         int kf_bits;
    588         /* Remaining error from uncoded frames in a gf group. */
    589         int gf_group_error_left;
    590         /* Projected total bits available for a key frame group of frames */
    591         int64_t kf_group_bits;
    592         /* Error score of frames still to be coded in kf group */
    593         int64_t kf_group_error_left;
    594         /* Projected Bits available for a group including 1 GF or ARF */
    595         int64_t gf_group_bits;
    596         /* Bits for the golden frame or ARF */
    597         int gf_bits;
    598         int alt_extra_bits;
    599         double est_max_qcorrection_factor;
    600     } twopass;
    601 
    602 #if VP8_TEMPORAL_ALT_REF
    603     YV12_BUFFER_CONFIG alt_ref_buffer;
    604     YV12_BUFFER_CONFIG *frames[MAX_LAG_BUFFERS];
    605     int fixed_divide[512];
    606 #endif
    607 
    608 #if CONFIG_INTERNAL_STATS
    609     int    count;
    610     double total_y;
    611     double total_u;
    612     double total_v;
    613     double total ;
    614     double total_sq_error;
    615     double totalp_y;
    616     double totalp_u;
    617     double totalp_v;
    618     double totalp;
    619     double total_sq_error2;
    620     int    bytes;
    621     double summed_quality;
    622     double summed_weights;
    623     unsigned int tot_recode_hits;
    624 
    625 
    626     double total_ssimg_y;
    627     double total_ssimg_u;
    628     double total_ssimg_v;
    629     double total_ssimg_all;
    630 
    631     int b_calculate_ssimg;
    632 #endif
    633     int b_calculate_psnr;
    634 
    635     /* Per MB activity measurement */
    636     unsigned int activity_avg;
    637     unsigned int * mb_activity_map;
    638 
    639     /* Record of which MBs still refer to last golden frame either
    640      * directly or through 0,0
    641      */
    642     unsigned char *gf_active_flags;
    643     int gf_active_count;
    644 
    645     int output_partition;
    646 
    647     /* Store last frame's MV info for next frame MV prediction */
    648     int_mv *lfmv;
    649     int *lf_ref_frame_sign_bias;
    650     int *lf_ref_frame;
    651 
    652     /* force next frame to intra when kf_auto says so */
    653     int force_next_frame_intra;
    654 
    655     int droppable;
    656 
    657 #if CONFIG_TEMPORAL_DENOISING
    658     VP8_DENOISER denoiser;
    659 #endif
    660 
    661     /* Coding layer state variables */
    662     unsigned int current_layer;
    663     LAYER_CONTEXT layer_context[VPX_TS_MAX_LAYERS];
    664 
    665     int64_t frames_in_layer[VPX_TS_MAX_LAYERS];
    666     int64_t bytes_in_layer[VPX_TS_MAX_LAYERS];
    667     double sum_psnr[VPX_TS_MAX_LAYERS];
    668     double sum_psnr_p[VPX_TS_MAX_LAYERS];
    669     double total_error2[VPX_TS_MAX_LAYERS];
    670     double total_error2_p[VPX_TS_MAX_LAYERS];
    671     double sum_ssim[VPX_TS_MAX_LAYERS];
    672     double sum_weights[VPX_TS_MAX_LAYERS];
    673 
    674     double total_ssimg_y_in_layer[VPX_TS_MAX_LAYERS];
    675     double total_ssimg_u_in_layer[VPX_TS_MAX_LAYERS];
    676     double total_ssimg_v_in_layer[VPX_TS_MAX_LAYERS];
    677     double total_ssimg_all_in_layer[VPX_TS_MAX_LAYERS];
    678 
    679 #if CONFIG_MULTI_RES_ENCODING
    680     /* Number of MBs per row at lower-resolution level */
    681     int    mr_low_res_mb_cols;
    682     /* Indicate if lower-res mv info is available */
    683     unsigned char  mr_low_res_mv_avail;
    684     /* The frame number of each reference frames */
    685     unsigned int current_ref_frames[MAX_REF_FRAMES];
    686 #endif
    687 
    688     struct rd_costs_struct
    689     {
    690         int mvcosts[2][MVvals+1];
    691         int mvsadcosts[2][MVfpvals+1];
    692         int mbmode_cost[2][MB_MODE_COUNT];
    693         int intra_uv_mode_cost[2][MB_MODE_COUNT];
    694         int bmode_costs[10][10][10];
    695         int inter_bmode_costs[B_MODE_COUNT];
    696         int token_costs[BLOCK_TYPES][COEF_BANDS]
    697         [PREV_COEF_CONTEXTS][MAX_ENTROPY_TOKENS];
    698     } rd_costs;
    699 } VP8_COMP;
    700 
    701 void vp8_pack_bitstream(VP8_COMP *cpi, unsigned char *dest,
    702                         unsigned char *dest_end, unsigned long *size);
    703 
    704 void vp8_tokenize_mb(VP8_COMP *, MACROBLOCK *, TOKENEXTRA **);
    705 
    706 void vp8_set_speed_features(VP8_COMP *cpi);
    707 
    708 #if CONFIG_DEBUG
    709 #define CHECK_MEM_ERROR(lval,expr) do {\
    710         lval = (expr); \
    711         if(!lval) \
    712             vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,\
    713                                "Failed to allocate "#lval" at %s:%d", \
    714                                __FILE__,__LINE__);\
    715     } while(0)
    716 #else
    717 #define CHECK_MEM_ERROR(lval,expr) do {\
    718         lval = (expr); \
    719         if(!lval) \
    720             vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,\
    721                                "Failed to allocate "#lval);\
    722     } while(0)
    723 #endif
    724 #endif
    725