| /* |
| * 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. |
| */ |
| |
| /* |
| * pitch_estimator.h |
| * |
| * Pitch functions |
| * |
| */ |
| |
| #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_PITCH_ESTIMATOR_H_ |
| #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_PITCH_ESTIMATOR_H_ |
| |
| #include "structs.h" |
| |
| |
| |
| void WebRtcIsac_PitchAnalysis(const double *in, /* PITCH_FRAME_LEN samples */ |
| double *out, /* PITCH_FRAME_LEN+QLOOKAHEAD samples */ |
| PitchAnalysisStruct *State, |
| double *lags, |
| double *gains); |
| |
| void WebRtcIsac_InitializePitch(const double *in, |
| const double old_lag, |
| const double old_gain, |
| PitchAnalysisStruct *State, |
| double *lags); |
| |
| void WebRtcIsac_PitchfilterPre(double *indat, |
| double *outdat, |
| PitchFiltstr *pfp, |
| double *lags, |
| double *gains); |
| |
| void WebRtcIsac_PitchfilterPost(double *indat, |
| double *outdat, |
| PitchFiltstr *pfp, |
| double *lags, |
| double *gains); |
| |
| void WebRtcIsac_PitchfilterPre_la(double *indat, |
| double *outdat, |
| PitchFiltstr *pfp, |
| double *lags, |
| double *gains); |
| |
| void WebRtcIsac_PitchfilterPre_gains(double *indat, |
| double *outdat, |
| double out_dG[][PITCH_FRAME_LEN + QLOOKAHEAD], |
| PitchFiltstr *pfp, |
| double *lags, |
| double *gains); |
| |
| void WebRtcIsac_WeightingFilter(const double *in, double *weiout, double *whiout, WeightFiltstr *wfdata); |
| |
| void WebRtcIsac_Highpass(const double *in, |
| double *out, |
| double *state, |
| size_t N); |
| |
| void WebRtcIsac_DecimateAllpass(const double *in, |
| double *state_in, /* array of size: |
| * 2*ALLPASSSECTIONS+1 */ |
| size_t N, /* number of input samples */ |
| double *out); /* array of size N/2 */ |
| |
| #endif /* WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_PITCH_ESTIMATOR_H_ */ |