1233d2500723e5594f3e7c70896ffeeef32b9c950ywan/* 2233d2500723e5594f3e7c70896ffeeef32b9c950ywan * Copyright (c) 2013 The WebM project authors. All Rights Reserved. 3233d2500723e5594f3e7c70896ffeeef32b9c950ywan * 4233d2500723e5594f3e7c70896ffeeef32b9c950ywan * Use of this source code is governed by a BSD-style license 5233d2500723e5594f3e7c70896ffeeef32b9c950ywan * that can be found in the LICENSE file in the root of the source 6233d2500723e5594f3e7c70896ffeeef32b9c950ywan * tree. An additional intellectual property rights grant can be found 7233d2500723e5594f3e7c70896ffeeef32b9c950ywan * in the file PATENTS. All contributing project authors may 8233d2500723e5594f3e7c70896ffeeef32b9c950ywan * be found in the AUTHORS file in the root of the source tree. 9233d2500723e5594f3e7c70896ffeeef32b9c950ywan */ 10233d2500723e5594f3e7c70896ffeeef32b9c950ywan 11233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include <math.h> 12233d2500723e5594f3e7c70896ffeeef32b9c950ywan 13233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "vp9/encoder/vp9_aq_variance.h" 14233d2500723e5594f3e7c70896ffeeef32b9c950ywan 15233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "vp9/common/vp9_seg_common.h" 16233d2500723e5594f3e7c70896ffeeef32b9c950ywan 17233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "vp9/encoder/vp9_ratectrl.h" 18233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "vp9/encoder/vp9_rdopt.h" 19233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "vp9/encoder/vp9_segmentation.h" 20233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "vp9/common/vp9_systemdependent.h" 21233d2500723e5594f3e7c70896ffeeef32b9c950ywan 22233d2500723e5594f3e7c70896ffeeef32b9c950ywan#define ENERGY_MIN (-1) 23233d2500723e5594f3e7c70896ffeeef32b9c950ywan#define ENERGY_MAX (1) 24233d2500723e5594f3e7c70896ffeeef32b9c950ywan#define ENERGY_SPAN (ENERGY_MAX - ENERGY_MIN + 1) 25233d2500723e5594f3e7c70896ffeeef32b9c950ywan#define ENERGY_IN_BOUNDS(energy)\ 26233d2500723e5594f3e7c70896ffeeef32b9c950ywan assert((energy) >= ENERGY_MIN && (energy) <= ENERGY_MAX) 27233d2500723e5594f3e7c70896ffeeef32b9c950ywan 28233d2500723e5594f3e7c70896ffeeef32b9c950ywanstatic double q_ratio[MAX_SEGMENTS] = { 1, 1, 1, 1, 1, 1, 1, 1 }; 29233d2500723e5594f3e7c70896ffeeef32b9c950ywanstatic double rdmult_ratio[MAX_SEGMENTS] = { 1, 1, 1, 1, 1, 1, 1, 1 }; 30233d2500723e5594f3e7c70896ffeeef32b9c950ywanstatic int segment_id[MAX_SEGMENTS] = { 5, 3, 1, 0, 2, 4, 6, 7 }; 31233d2500723e5594f3e7c70896ffeeef32b9c950ywan 32233d2500723e5594f3e7c70896ffeeef32b9c950ywan#define Q_RATIO(i) q_ratio[(i) - ENERGY_MIN] 33233d2500723e5594f3e7c70896ffeeef32b9c950ywan#define RDMULT_RATIO(i) rdmult_ratio[(i) - ENERGY_MIN] 34233d2500723e5594f3e7c70896ffeeef32b9c950ywan#define SEGMENT_ID(i) segment_id[(i) - ENERGY_MIN] 35233d2500723e5594f3e7c70896ffeeef32b9c950ywan 36233d2500723e5594f3e7c70896ffeeef32b9c950ywanDECLARE_ALIGNED(16, static const uint8_t, vp9_64_zeros[64]) = {0}; 37233d2500723e5594f3e7c70896ffeeef32b9c950ywan 38233d2500723e5594f3e7c70896ffeeef32b9c950ywanunsigned int vp9_vaq_segment_id(int energy) { 39233d2500723e5594f3e7c70896ffeeef32b9c950ywan ENERGY_IN_BOUNDS(energy); 40233d2500723e5594f3e7c70896ffeeef32b9c950ywan 41233d2500723e5594f3e7c70896ffeeef32b9c950ywan return SEGMENT_ID(energy); 42233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 43233d2500723e5594f3e7c70896ffeeef32b9c950ywan 44233d2500723e5594f3e7c70896ffeeef32b9c950ywandouble vp9_vaq_rdmult_ratio(int energy) { 45233d2500723e5594f3e7c70896ffeeef32b9c950ywan ENERGY_IN_BOUNDS(energy); 46233d2500723e5594f3e7c70896ffeeef32b9c950ywan 47233d2500723e5594f3e7c70896ffeeef32b9c950ywan vp9_clear_system_state(); 48233d2500723e5594f3e7c70896ffeeef32b9c950ywan 49233d2500723e5594f3e7c70896ffeeef32b9c950ywan return RDMULT_RATIO(energy); 50233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 51233d2500723e5594f3e7c70896ffeeef32b9c950ywan 52233d2500723e5594f3e7c70896ffeeef32b9c950ywandouble vp9_vaq_inv_q_ratio(int energy) { 53233d2500723e5594f3e7c70896ffeeef32b9c950ywan ENERGY_IN_BOUNDS(energy); 54233d2500723e5594f3e7c70896ffeeef32b9c950ywan 55233d2500723e5594f3e7c70896ffeeef32b9c950ywan vp9_clear_system_state(); 56233d2500723e5594f3e7c70896ffeeef32b9c950ywan 57233d2500723e5594f3e7c70896ffeeef32b9c950ywan return Q_RATIO(-energy); 58233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 59233d2500723e5594f3e7c70896ffeeef32b9c950ywan 60233d2500723e5594f3e7c70896ffeeef32b9c950ywanvoid vp9_vaq_init() { 61233d2500723e5594f3e7c70896ffeeef32b9c950ywan int i; 62233d2500723e5594f3e7c70896ffeeef32b9c950ywan double base_ratio; 63233d2500723e5594f3e7c70896ffeeef32b9c950ywan 64233d2500723e5594f3e7c70896ffeeef32b9c950ywan assert(ENERGY_SPAN <= MAX_SEGMENTS); 65233d2500723e5594f3e7c70896ffeeef32b9c950ywan 66233d2500723e5594f3e7c70896ffeeef32b9c950ywan vp9_clear_system_state(); 67233d2500723e5594f3e7c70896ffeeef32b9c950ywan 68233d2500723e5594f3e7c70896ffeeef32b9c950ywan base_ratio = 1.5; 69233d2500723e5594f3e7c70896ffeeef32b9c950ywan 70233d2500723e5594f3e7c70896ffeeef32b9c950ywan for (i = ENERGY_MIN; i <= ENERGY_MAX; i++) { 71233d2500723e5594f3e7c70896ffeeef32b9c950ywan Q_RATIO(i) = pow(base_ratio, i/3.0); 72233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 73233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 74233d2500723e5594f3e7c70896ffeeef32b9c950ywan 75233d2500723e5594f3e7c70896ffeeef32b9c950ywanvoid vp9_vaq_frame_setup(VP9_COMP *cpi) { 76233d2500723e5594f3e7c70896ffeeef32b9c950ywan VP9_COMMON *cm = &cpi->common; 77233d2500723e5594f3e7c70896ffeeef32b9c950ywan struct segmentation *seg = &cm->seg; 78233d2500723e5594f3e7c70896ffeeef32b9c950ywan const double base_q = vp9_convert_qindex_to_q(cm->base_qindex); 79233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int base_rdmult = vp9_compute_rd_mult(cpi, cm->base_qindex + 80233d2500723e5594f3e7c70896ffeeef32b9c950ywan cm->y_dc_delta_q); 81233d2500723e5594f3e7c70896ffeeef32b9c950ywan int i; 82233d2500723e5594f3e7c70896ffeeef32b9c950ywan 83233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (cm->frame_type == KEY_FRAME || 84233d2500723e5594f3e7c70896ffeeef32b9c950ywan cpi->refresh_alt_ref_frame || 85233d2500723e5594f3e7c70896ffeeef32b9c950ywan (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref)) { 86233d2500723e5594f3e7c70896ffeeef32b9c950ywan vp9_enable_segmentation(seg); 87233d2500723e5594f3e7c70896ffeeef32b9c950ywan vp9_clearall_segfeatures(seg); 88233d2500723e5594f3e7c70896ffeeef32b9c950ywan 89233d2500723e5594f3e7c70896ffeeef32b9c950ywan seg->abs_delta = SEGMENT_DELTADATA; 90233d2500723e5594f3e7c70896ffeeef32b9c950ywan 91233d2500723e5594f3e7c70896ffeeef32b9c950ywan vp9_clear_system_state(); 92233d2500723e5594f3e7c70896ffeeef32b9c950ywan 93233d2500723e5594f3e7c70896ffeeef32b9c950ywan for (i = ENERGY_MIN; i <= ENERGY_MAX; i++) { 94233d2500723e5594f3e7c70896ffeeef32b9c950ywan int qindex_delta, segment_rdmult; 95233d2500723e5594f3e7c70896ffeeef32b9c950ywan 96233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (Q_RATIO(i) == 1) { 97233d2500723e5594f3e7c70896ffeeef32b9c950ywan // No need to enable SEG_LVL_ALT_Q for this segment 98233d2500723e5594f3e7c70896ffeeef32b9c950ywan RDMULT_RATIO(i) = 1; 99233d2500723e5594f3e7c70896ffeeef32b9c950ywan continue; 100233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 101233d2500723e5594f3e7c70896ffeeef32b9c950ywan 102233d2500723e5594f3e7c70896ffeeef32b9c950ywan qindex_delta = vp9_compute_qdelta(cpi, base_q, base_q * Q_RATIO(i)); 103233d2500723e5594f3e7c70896ffeeef32b9c950ywan vp9_set_segdata(seg, SEGMENT_ID(i), SEG_LVL_ALT_Q, qindex_delta); 104233d2500723e5594f3e7c70896ffeeef32b9c950ywan vp9_enable_segfeature(seg, SEGMENT_ID(i), SEG_LVL_ALT_Q); 105233d2500723e5594f3e7c70896ffeeef32b9c950ywan 106233d2500723e5594f3e7c70896ffeeef32b9c950ywan segment_rdmult = vp9_compute_rd_mult(cpi, cm->base_qindex + qindex_delta + 107233d2500723e5594f3e7c70896ffeeef32b9c950ywan cm->y_dc_delta_q); 108233d2500723e5594f3e7c70896ffeeef32b9c950ywan 109233d2500723e5594f3e7c70896ffeeef32b9c950ywan RDMULT_RATIO(i) = (double) segment_rdmult / base_rdmult; 110233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 111233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 112233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 113233d2500723e5594f3e7c70896ffeeef32b9c950ywan 114233d2500723e5594f3e7c70896ffeeef32b9c950ywan 115233d2500723e5594f3e7c70896ffeeef32b9c950ywanstatic unsigned int block_variance(VP9_COMP *cpi, MACROBLOCK *x, 116233d2500723e5594f3e7c70896ffeeef32b9c950ywan BLOCK_SIZE bs) { 117233d2500723e5594f3e7c70896ffeeef32b9c950ywan MACROBLOCKD *xd = &x->e_mbd; 118233d2500723e5594f3e7c70896ffeeef32b9c950ywan unsigned int var, sse; 119233d2500723e5594f3e7c70896ffeeef32b9c950ywan int right_overflow = (xd->mb_to_right_edge < 0) ? 120233d2500723e5594f3e7c70896ffeeef32b9c950ywan ((-xd->mb_to_right_edge) >> 3) : 0; 121233d2500723e5594f3e7c70896ffeeef32b9c950ywan int bottom_overflow = (xd->mb_to_bottom_edge < 0) ? 122233d2500723e5594f3e7c70896ffeeef32b9c950ywan ((-xd->mb_to_bottom_edge) >> 3) : 0; 123233d2500723e5594f3e7c70896ffeeef32b9c950ywan 124233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (right_overflow || bottom_overflow) { 125233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int bw = 8 * num_8x8_blocks_wide_lookup[bs] - right_overflow; 126233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int bh = 8 * num_8x8_blocks_high_lookup[bs] - bottom_overflow; 127233d2500723e5594f3e7c70896ffeeef32b9c950ywan int avg; 128233d2500723e5594f3e7c70896ffeeef32b9c950ywan variance(x->plane[0].src.buf, x->plane[0].src.stride, 129233d2500723e5594f3e7c70896ffeeef32b9c950ywan vp9_64_zeros, 0, bw, bh, &sse, &avg); 130233d2500723e5594f3e7c70896ffeeef32b9c950ywan var = sse - (((int64_t)avg * avg) / (bw * bh)); 131233d2500723e5594f3e7c70896ffeeef32b9c950ywan return (256 * var) / (bw * bh); 132233d2500723e5594f3e7c70896ffeeef32b9c950ywan } else { 133233d2500723e5594f3e7c70896ffeeef32b9c950ywan var = cpi->fn_ptr[bs].vf(x->plane[0].src.buf, 134233d2500723e5594f3e7c70896ffeeef32b9c950ywan x->plane[0].src.stride, 135233d2500723e5594f3e7c70896ffeeef32b9c950ywan vp9_64_zeros, 0, &sse); 136233d2500723e5594f3e7c70896ffeeef32b9c950ywan return (256 * var) >> num_pels_log2_lookup[bs]; 137233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 138233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 139233d2500723e5594f3e7c70896ffeeef32b9c950ywan 140233d2500723e5594f3e7c70896ffeeef32b9c950ywanint vp9_block_energy(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bs) { 141233d2500723e5594f3e7c70896ffeeef32b9c950ywan double energy; 142233d2500723e5594f3e7c70896ffeeef32b9c950ywan unsigned int var = block_variance(cpi, x, bs); 143233d2500723e5594f3e7c70896ffeeef32b9c950ywan 144233d2500723e5594f3e7c70896ffeeef32b9c950ywan vp9_clear_system_state(); 145233d2500723e5594f3e7c70896ffeeef32b9c950ywan 146233d2500723e5594f3e7c70896ffeeef32b9c950ywan energy = 0.9 * (log(var + 1.0) - 10.0); 147233d2500723e5594f3e7c70896ffeeef32b9c950ywan return clamp((int)round(energy), ENERGY_MIN, ENERGY_MAX); 148233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 149