/* * Copyright (c) 2016, Alliance for Open Media. All rights reserved. * * This source code is subject to the terms of the BSD 2 Clause License and * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License * was not distributed with this source code in the LICENSE file, you can * obtain it at www.aomedia.org/license/software. If the Alliance for Open * Media Patent License 1.0 was not distributed with this source code in the * PATENTS file, you can obtain it at www.aomedia.org/license/patent. */ #include <limits.h> #include <math.h> #include "av1/encoder/aq_complexity.h" #include "av1/encoder/aq_variance.h" #include "av1/encoder/encodeframe.h" #include "av1/common/seg_common.h" #include "av1/encoder/segmentation.h" #include "aom_dsp/aom_dsp_common.h" #define AQ_C_SEGMENTS … #define DEFAULT_AQ2_SEG … #define AQ_C_STRENGTHS … static const double aq_c_q_adj_factor[AQ_C_STRENGTHS][AQ_C_SEGMENTS] = …; static const double aq_c_transitions[AQ_C_STRENGTHS][AQ_C_SEGMENTS] = …; static const double aq_c_var_thresholds[AQ_C_STRENGTHS][AQ_C_SEGMENTS] = …; static int get_aq_c_strength(int q_index, aom_bit_depth_t bit_depth) { … } static bool is_frame_aq_enabled(const AV1_COMP *const cpi) { … } // Segmentation only makes sense if the target bits per SB is above a threshold. // Below this the overheads will usually outweigh any benefit. static bool is_sb_aq_enabled(const AV1_COMP *const cpi) { … } void av1_setup_in_frame_q_adj(AV1_COMP *cpi) { … } #define DEFAULT_LV_THRESH … #define MIN_DEFAULT_LV_THRESH … // Select a segment for the current block. // The choice of segment for a block depends on the ratio of the projected // bits for the block vs a target average and its spatial complexity. void av1_caq_select_segment(const AV1_COMP *cpi, MACROBLOCK *mb, BLOCK_SIZE bs, int mi_row, int mi_col, int projected_rate) { … }
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