1*49fe348cSAndroid Build Coastguard Worker /****************************************************************************** 2*49fe348cSAndroid Build Coastguard Worker * 3*49fe348cSAndroid Build Coastguard Worker * Copyright 2022 Google LLC 4*49fe348cSAndroid Build Coastguard Worker * 5*49fe348cSAndroid Build Coastguard Worker * Licensed under the Apache License, Version 2.0 (the "License"); 6*49fe348cSAndroid Build Coastguard Worker * you may not use this file except in compliance with the License. 7*49fe348cSAndroid Build Coastguard Worker * You may obtain a copy of the License at: 8*49fe348cSAndroid Build Coastguard Worker * 9*49fe348cSAndroid Build Coastguard Worker * http://www.apache.org/licenses/LICENSE-2.0 10*49fe348cSAndroid Build Coastguard Worker * 11*49fe348cSAndroid Build Coastguard Worker * Unless required by applicable law or agreed to in writing, software 12*49fe348cSAndroid Build Coastguard Worker * distributed under the License is distributed on an "AS IS" BASIS, 13*49fe348cSAndroid Build Coastguard Worker * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14*49fe348cSAndroid Build Coastguard Worker * See the License for the specific language governing permissions and 15*49fe348cSAndroid Build Coastguard Worker * limitations under the License. 16*49fe348cSAndroid Build Coastguard Worker * 17*49fe348cSAndroid Build Coastguard Worker ******************************************************************************/ 18*49fe348cSAndroid Build Coastguard Worker 19*49fe348cSAndroid Build Coastguard Worker #ifndef __LC3_ENERGY_H 20*49fe348cSAndroid Build Coastguard Worker #define __LC3_ENERGY_H 21*49fe348cSAndroid Build Coastguard Worker 22*49fe348cSAndroid Build Coastguard Worker #include "common.h" 23*49fe348cSAndroid Build Coastguard Worker 24*49fe348cSAndroid Build Coastguard Worker 25*49fe348cSAndroid Build Coastguard Worker /** 26*49fe348cSAndroid Build Coastguard Worker * Energy estimation per band 27*49fe348cSAndroid Build Coastguard Worker * dt, sr Duration and samplerate of the frame 28*49fe348cSAndroid Build Coastguard Worker * x Input MDCT coefficient 29*49fe348cSAndroid Build Coastguard Worker * e Energy estimation per bands 30*49fe348cSAndroid Build Coastguard Worker * return True when high energy detected near Nyquist frequency 31*49fe348cSAndroid Build Coastguard Worker */ 32*49fe348cSAndroid Build Coastguard Worker bool lc3_energy_compute( 33*49fe348cSAndroid Build Coastguard Worker enum lc3_dt dt, enum lc3_srate sr, const float *x, float *e); 34*49fe348cSAndroid Build Coastguard Worker 35*49fe348cSAndroid Build Coastguard Worker 36*49fe348cSAndroid Build Coastguard Worker #endif /* __LC3_ENERGY_H */ 37