1 /****************************************************************************** 2 * * 3 * Copyright (C) 2023 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ***************************************************************************** 18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 */ 20 21 #pragma once 22 #define MIN_DRC_GAIN_CODING_PROFILE0 (-31.875f) 23 #define MAX_DRC_GAIN_CODING_PROFILE0 (31.875f) 24 25 #define MIN_DRC_GAIN_CODING_PROFILE1 (-128.0f) 26 #define MAX_DRC_GAIN_CODING_PROFILE1 (0.0f) 27 28 #define MIN_DRC_GAIN_CODING_PROFILE2 (-32.0f) 29 #define MAX_DRC_GAIN_CODING_PROFILE2 (0.0f) 30 31 #define INV_LOG10_2 (3.32192809488736f) /* 1.0 / log10(2.0) */ 32 33 IA_ERRORCODE impd_drc_enc_initial_gain(const WORD32 gain_coding_profile, FLOAT32 gain_initial, 34 FLOAT32 *gain_initial_quant, WORD32 *code_size, 35 WORD32 *code); 36