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 TRANS_FAC 8 23 24 #define BLK_SWITCH_WIN 8 25 #define BLK_SWITCH_FILT_LEN 2 26 27 /* Block types */ 28 #define LONG_WINDOW 0 29 #define START_WINDOW 1 30 #define SHORT_WINDOW 2 31 #define STOP_WINDOW 3 32 33 /* Window shapes */ 34 #define SINE_WINDOW 0 35 #define KBD_WINDOW 1 36 37 #define MAXIMUM_NO_OF_GROUPS 4 38 39 #define ACC_WINDOW_NRG_FAC 0.3f 40 #define ONE_MINUS_ACC_WINDOW_NRG_FAC 0.7f 41 #define INV_ATTACK_RATIO_HIGH_BR 0.1f 42 #define INV_ATTACK_RATIO_LOW_BR 0.056f 43 #define USAC_MIN_ATTACK_NRG 1e+6 44 #define CLIP_ENERGY_VALUE_LONG (1.0e9f) 45 #define CLIP_ENERGY_VALUE_SHORT (15625000.0f) 46