1 /* 2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved 3 * 4 * This source code is subject to the terms of the BSD 2 Clause License and 5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6 * was not distributed with this source code in the LICENSE file, you can 7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8 * Media Patent License 1.0 was not distributed with this source code in the 9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10 */ 11 12 #ifndef AOM_AV1_ENCODER_FIRSTPASS_H_ 13 #define AOM_AV1_ENCODER_FIRSTPASS_H_ 14 15 #include "av1/common/enums.h" 16 #include "av1/common/onyxc_int.h" 17 #include "av1/encoder/lookahead.h" 18 #include "av1/encoder/ratectrl.h" 19 20 #ifdef __cplusplus 21 extern "C" { 22 #endif 23 24 #define DOUBLE_DIVIDE_CHECK(x) ((x) < 0 ? (x)-0.000001 : (x) + 0.000001) 25 26 #define MIN_ZERO_MOTION 0.95 27 #define MAX_SR_CODED_ERROR 40 28 #define MAX_RAW_ERR_VAR 2000 29 #define MIN_MV_IN_OUT 0.4 30 31 #define VLOW_MOTION_THRESHOLD 950 32 33 typedef struct { 34 // Frame number in display order, if stats are for a single frame. 35 // No real meaning for a collection of frames. 36 double frame; 37 // Weight assigned to this frame (or total weight for the collection of 38 // frames) currently based on intra factor and brightness factor. This is used 39 // to distribute bits betweeen easier and harder frames. 40 double weight; 41 // Intra prediction error. 42 double intra_error; 43 // Average wavelet energy computed using Discrete Wavelet Transform (DWT). 44 double frame_avg_wavelet_energy; 45 // Best of intra pred error and inter pred error using last frame as ref. 46 double coded_error; 47 // Best of intra pred error and inter pred error using golden frame as ref. 48 double sr_coded_error; 49 // Percentage of blocks with inter pred error < intra pred error. 50 double pcnt_inter; 51 // Percentage of blocks using (inter prediction and) non-zero motion vectors. 52 double pcnt_motion; 53 // Percentage of blocks where golden frame was the best reference. That is: 54 // inter pred error using golden frame < inter pred error using last frame and 55 // inter pred error using golden frame < intra pred error 56 double pcnt_second_ref; 57 // Percentage of blocks where intra and inter prediction errors were very 58 // close. Note that this is a 'weighted count', that is, the so blocks may be 59 // weighted by how close the two errors were. 60 double pcnt_neutral; 61 // Percentage of blocks that have almost no intra error residual 62 // (i.e. are in effect completely flat and untextured in the intra 63 // domain). In natural videos this is uncommon, but it is much more 64 // common in animations, graphics and screen content, so may be used 65 // as a signal to detect these types of content. 66 double intra_skip_pct; 67 // Image mask rows top and bottom. 68 double inactive_zone_rows; 69 // Image mask columns at left and right edges. 70 double inactive_zone_cols; 71 // Average of row motion vectors. 72 double MVr; 73 // Mean of absolute value of row motion vectors. 74 double mvr_abs; 75 // Mean of column motion vectors. 76 double MVc; 77 // Mean of absolute value of column motion vectors. 78 double mvc_abs; 79 // Variance of row motion vectors. 80 double MVrv; 81 // Variance of column motion vectors. 82 double MVcv; 83 // Value in range [-1,1] indicating fraction of row and column motion vectors 84 // that point inwards (negative MV value) or outwards (positive MV value). 85 // For example, value of 1 indicates, all row/column MVs are inwards. 86 double mv_in_out_count; 87 // Count of unique non-zero motion vectors. 88 double new_mv_count; 89 // Duration of the frame / collection of frames. 90 double duration; 91 // 1.0 if stats are for a single frame, OR 92 // Number of frames in this collection for which the stats are accumulated. 93 double count; 94 // standard deviation for (0, 0) motion prediction error 95 double raw_error_stdev; 96 } FIRSTPASS_STATS; 97 98 enum { 99 KF_UPDATE, 100 LF_UPDATE, 101 GF_UPDATE, 102 ARF_UPDATE, 103 OVERLAY_UPDATE, 104 INTNL_OVERLAY_UPDATE, // Internal Overlay Frame 105 INTNL_ARF_UPDATE, // Internal Altref Frame 106 FRAME_UPDATE_TYPES 107 } UENUM1BYTE(FRAME_UPDATE_TYPE); 108 109 #define FC_ANIMATION_THRESH 0.15 110 enum { 111 FC_NORMAL = 0, 112 FC_GRAPHICS_ANIMATION = 1, 113 FRAME_CONTENT_TYPES = 2 114 } UENUM1BYTE(FRAME_CONTENT_TYPE); 115 116 typedef struct { 117 unsigned char index; 118 FRAME_UPDATE_TYPE update_type[MAX_STATIC_GF_GROUP_LENGTH + 1]; 119 unsigned char arf_src_offset[MAX_STATIC_GF_GROUP_LENGTH + 1]; 120 unsigned char arf_update_idx[MAX_STATIC_GF_GROUP_LENGTH + 1]; 121 unsigned char arf_pos_in_gf[MAX_STATIC_GF_GROUP_LENGTH + 1]; 122 unsigned char pyramid_level[MAX_STATIC_GF_GROUP_LENGTH + 1]; 123 unsigned char pyramid_height; 124 unsigned char pyramid_lvl_nodes[MAX_PYRAMID_LVL]; 125 int bit_allocation[MAX_STATIC_GF_GROUP_LENGTH + 1]; 126 int size; 127 } GF_GROUP; 128 129 typedef struct { 130 unsigned int section_intra_rating; 131 FIRSTPASS_STATS total_stats; 132 FIRSTPASS_STATS this_frame_stats; 133 const FIRSTPASS_STATS *stats_in; 134 const FIRSTPASS_STATS *stats_in_start; 135 const FIRSTPASS_STATS *stats_in_end; 136 FIRSTPASS_STATS total_left_stats; 137 int first_pass_done; 138 int64_t bits_left; 139 double modified_error_min; 140 double modified_error_max; 141 double modified_error_left; 142 double mb_av_energy; 143 double frame_avg_haar_energy; 144 145 // An indication of the content type of the current frame 146 FRAME_CONTENT_TYPE fr_content_type; 147 148 // Projected total bits available for a key frame group of frames 149 int64_t kf_group_bits; 150 151 // Error score of frames still to be coded in kf group 152 int64_t kf_group_error_left; 153 154 // The fraction for a kf groups total bits allocated to the inter frames 155 double kfgroup_inter_fraction; 156 157 int sr_update_lag; 158 159 int kf_zeromotion_pct; 160 int last_kfgroup_zeromotion_pct; 161 int active_worst_quality; 162 int baseline_active_worst_quality; 163 int extend_minq; 164 int extend_maxq; 165 int extend_minq_fast; 166 167 GF_GROUP gf_group; 168 } TWO_PASS; 169 170 struct AV1_COMP; 171 struct EncodeFrameParams; 172 struct AV1EncoderConfig; 173 174 void av1_init_first_pass(struct AV1_COMP *cpi); 175 void av1_rc_get_first_pass_params(struct AV1_COMP *cpi); 176 void av1_first_pass(struct AV1_COMP *cpi, const int64_t ts_duration); 177 void av1_end_first_pass(struct AV1_COMP *cpi); 178 179 void av1_twopass_zero_stats(FIRSTPASS_STATS *section); 180 181 #ifdef __cplusplus 182 } // extern "C" 183 #endif 184 185 #endif // AOM_AV1_ENCODER_FIRSTPASS_H_ 186
