| /****************************************************************************** |
| * |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ***************************************************************************** |
| * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore |
| */ |
| /*! |
| ****************************************************************************** |
| * \file rc_common.h |
| * |
| * \brief |
| * This file contains common macro used by rate control module |
| * |
| * \date |
| * |
| * \author |
| * ittiam |
| * |
| ****************************************************************************** |
| */ |
| #ifndef _RC_COMMON_H_ |
| #define _RC_COMMON_H_ |
| |
| /*****************************************************************************/ |
| /* Constant Macros */ |
| /*****************************************************************************/ |
| /**************************************************************************** |
| NOTE : Put only those things into this file which are common across many |
| files, say I_TO_P_BIT_RATIO macro is used across bit_allocation.c |
| and rate_control_api.c.If anything is exclusive only to one file, |
| define it in the same file |
| |
| This file is an RC private file. It should not be exported to Codec |
| ****************************************************************************/ |
| |
| /* Defines the maximum and the minimum quantizer allowed in the stream.*/ |
| #define MAX_MPEG2_QP (4095) /*255*/ /* 127*/ |
| #define ERR_2PASS_DISTR_GOP 5 |
| |
| #define ENABLE_SSD_CALC_RC 0 |
| |
| #ifdef ARM9 |
| /* Mem tab alignment to 4 bytes */ |
| #define MEM_TAB_ALIGNMENT 32 /*ALIGN_WORD32*/ |
| #else /* ARM968 */ |
| /* Mem tab alignment to 128 bytes */ |
| #define MEM_TAB_ALIGNMENT ALIGN_128_BYTE |
| #endif /* ARM968 */ |
| |
| #define COMP_TO_BITS_MAP(X, factor) \ |
| ((-1.7561f * (X * X * X * X) + (2.5547f * X * X * X) - 0.3408f * (X * X) + (0.5343f * X) - \ |
| 0.003f) * \ |
| factor) |
| |
| #define COMP_TO_BITS_MAP_2_PASS(X, factor) \ |
| ((-1.7561f * (X * X * X * X) + (2.5547f * X * X * X) - 0.3408f * (X * X) + (0.5343f * X) - \ |
| 0.003f) * \ |
| factor) |
| /* Calculates P = (X*Y/Z) (Assuming all the four are in integers)*/ |
| #define X_PROD_Y_DIV_Z(X1, Y1, Z1, P1) \ |
| { \ |
| number_t vq_a, vq_b, vq_c; \ |
| SET_VAR_Q(vq_a, (X1), 0); \ |
| SET_VAR_Q(vq_b, (Y1), 0); \ |
| SET_VAR_Q(vq_c, (Z1), 0); \ |
| mult32_var_q(vq_a, vq_b, &vq_a); \ |
| div32_var_q(vq_a, vq_c, &vq_a); \ |
| number_t_to_word32(vq_a, &(P1)); \ |
| } |
| |
| /* Maximum number of drain-rates supported. Currently a maximum of only 2 |
| drain-rates supported. One for |
| I pictures and the other for P & B pictures */ |
| #define MAX_NUM_DRAIN_RATES 2 |
| |
| /* The ratios between I to P and P to B Qp is specified here */ |
| #define K_Q 4 |
| #define I_TO_P_RATIO (18) /*(16)*/ /* In K_Q Q factor */ |
| #define P_TO_B_RATIO (18) /* In K_Q Q factor */ |
| #define B_TO_B1_RATIO (18) |
| #define B1_TO_B2_RATIO (18) |
| #define P_TO_I_RATIO (14) |
| #define I_TO_B_RATIO ((P_TO_B_RATIO * I_TO_P_RATIO) >> K_Q) |
| #define I_TO_B1_RATIO ((B_TO_B1_RATIO * P_TO_B_RATIO * I_TO_P_RATIO) >> (K_Q + K_Q)) |
| #define I_TO_B2_RATIO \ |
| ((B1_TO_B2_RATIO * B_TO_B1_RATIO * P_TO_B_RATIO * I_TO_P_RATIO) >> (K_Q + K_Q + K_Q)) |
| |
| #define P_TO_B_RATIO_HBR (16) |
| #define I_TO_P_RATIO_LOW_MOTION (20) |
| #define I_TO_P_RATIO_VLOW_MOTION (23) |
| #define I_TO_P_RATIO_VVLOW_MOTION (26) |
| |
| /* #define I_TO_P_RATIO (16) In K_Q Q factor */ |
| /* #define P_TO_B_RATIO (16) In K_Q Q factor */ |
| |
| /*Ratio of I frame bit consumptin vs average bit consumption for rest of the GOP |
| * This is based on experimaental runs over different seqience(same resolution scaled)*/ |
| #define I_TO_AVG_REST_GOP_BIT (8) |
| #define MINIMUM_VISIBILITY_B4_STATIC_I \ |
| (18) //assumes this minimum lap window for bit allocation of static frame |
| #define MINIMUM_FRM_I_TO_REST_LAP_ENABLED (8) |
| #define I_TO_AVG_REST_GOP_BIT_MIN (1) |
| #define I_TO_AVG_REST_GOP_BIT_MAX (20) |
| #define I_TO_AVG_REST_GOP_BIT_MAX_INFINITE (80) |
| #define I_TO_AVG_REST_GOP_BIT_MAX_2_PASS (40) |
| #define I_TO_AVG_REST_GOP_BIT_MIN_2_PASS (0.5f) |
| |
| #define UPPER_THRESHOLD_EBF_Q4 (15) |
| #define STATIC_I_TO_REST_MULTIPLIER (6) |
| |
| /*also present in encoder herader file with same name*/ |
| #define MAX_LAP_COMPLEXITY_Q7 (90) |
| #define DEFAULT_TEX_PERCENTAGE_Q5 24 |
| |
| #ifdef DISABLE_NON_STEADY_STATE_CODE |
| #define NON_STEADSTATE_CODE (0) |
| #else |
| #define NON_STEADSTATE_CODE (1) |
| #endif |
| |
| /*HEVC_hierarchy*/ |
| #define I_TO_P_BIT_RATIO (6) |
| #define P_TO_B_BIT_RATIO (2) |
| #define B_TO_B1_BIT_RATO0 (2) |
| #define B1_TO_B2_BIT_RATIO (2) |
| |
| /*define static I_TO_P ratio for all pic types*/ |
| /* Trying to detect a static content and fixing the quality for that content. The trigger for such a |
| content is if the ratio between the estimated I frame to that of P is more than 18 times. If such |
| a simple content is detected then the bit ditribution is fixed to a ration of 36:2:1 (I:P:B) */ |
| #define STATIC_I_TO_B2_RATIO (100) //(24) |
| #define STATIC_P_TO_B2_RATIO (2) |
| #define STATIC_B_TO_B2_RATIO (1) |
| #define STATIC_B1_TO_B2_RATIO (1) |
| |
| /*Fsim limits*/ |
| #define RC_FSIM_LOW_THR_SCD 64 |
| |
| #define RC_FSIM_HIGH_THR_STATIC 115 |
| |
| #endif /* _RC_COMMON_H_ */ |
