| /* |
| * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| /* |
| * lpc_analysis.h |
| * |
| * LPC functions |
| * |
| */ |
| |
| #ifndef MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_LPC_ANALYSIS_H_ |
| #define MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_LPC_ANALYSIS_H_ |
| |
| #include "modules/audio_coding/codecs/isac/main/source/settings.h" |
| #include "modules/audio_coding/codecs/isac/main/source/structs.h" |
| |
| void WebRtcIsac_GetLpcCoefLb(double* inLo, |
| double* inHi, |
| MaskFiltstr* maskdata, |
| double signal_noise_ratio, |
| const int16_t* pitchGains_Q12, |
| double* lo_coeff, |
| double* hi_coeff); |
| |
| void WebRtcIsac_GetLpcGain(double signal_noise_ratio, |
| const double* filtCoeffVecs, |
| int numVecs, |
| double* gain, |
| double corrLo[][UB_LPC_ORDER + 1], |
| const double* varscale); |
| |
| void WebRtcIsac_GetLpcCoefUb(double* inSignal, |
| MaskFiltstr* maskdata, |
| double* lpCoeff, |
| double corr[][UB_LPC_ORDER + 1], |
| double* varscale, |
| int16_t bandwidth); |
| |
| #endif /* MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_LPC_ANALYIS_H_ */ |