| /* |
| * 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_lag_tables.h |
| * |
| * This file contains tables for the pitch filter side-info in the entropy coder. |
| * |
| */ |
| |
| #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_PITCH_LAG_TABLES_H_ |
| #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_PITCH_LAG_TABLES_H_ |
| |
| #include "webrtc/typedefs.h" |
| /* header file for coding tables for the pitch filter side-info in the entropy coder */ |
| /********************* Pitch Filter Lag Coefficient Tables ************************/ |
| |
| /* tables for use with small pitch gain */ |
| |
| /* cdfs for quantized pitch lags */ |
| extern const uint16_t WebRtcIsac_kQPitchLagCdf1Lo[127]; |
| extern const uint16_t WebRtcIsac_kQPitchLagCdf2Lo[20]; |
| extern const uint16_t WebRtcIsac_kQPitchLagCdf3Lo[2]; |
| extern const uint16_t WebRtcIsac_kQPitchLagCdf4Lo[10]; |
| |
| extern const uint16_t *WebRtcIsac_kQPitchLagCdfPtrLo[4]; |
| |
| /* size of first cdf table */ |
| extern const uint16_t WebRtcIsac_kQPitchLagCdfSizeLo[1]; |
| |
| /* index limits and ranges */ |
| extern const int16_t WebRtcIsac_kQIndexLowerLimitLagLo[4]; |
| extern const int16_t WebRtcIsac_kQIndexUpperLimitLagLo[4]; |
| |
| /* initial index for arithmetic decoder */ |
| extern const uint16_t WebRtcIsac_kQInitIndexLagLo[3]; |
| |
| /* mean values of pitch filter lags */ |
| extern const double WebRtcIsac_kQMeanLag2Lo[19]; |
| extern const double WebRtcIsac_kQMeanLag3Lo[1]; |
| extern const double WebRtcIsac_kQMeanLag4Lo[9]; |
| |
| extern const double WebRtcIsac_kQPitchLagStepsizeLo; |
| |
| |
| /* tables for use with medium pitch gain */ |
| |
| /* cdfs for quantized pitch lags */ |
| extern const uint16_t WebRtcIsac_kQPitchLagCdf1Mid[255]; |
| extern const uint16_t WebRtcIsac_kQPitchLagCdf2Mid[36]; |
| extern const uint16_t WebRtcIsac_kQPitchLagCdf3Mid[2]; |
| extern const uint16_t WebRtcIsac_kQPitchLagCdf4Mid[20]; |
| |
| extern const uint16_t *WebRtcIsac_kQPitchLagCdfPtrMid[4]; |
| |
| /* size of first cdf table */ |
| extern const uint16_t WebRtcIsac_kQPitchLagCdfSizeMid[1]; |
| |
| /* index limits and ranges */ |
| extern const int16_t WebRtcIsac_kQIndexLowerLimitLagMid[4]; |
| extern const int16_t WebRtcIsac_kQIndexUpperLimitLagMid[4]; |
| |
| /* initial index for arithmetic decoder */ |
| extern const uint16_t WebRtcIsac_kQInitIndexLagMid[3]; |
| |
| /* mean values of pitch filter lags */ |
| extern const double WebRtcIsac_kQMeanLag2Mid[35]; |
| extern const double WebRtcIsac_kQMeanLag3Mid[1]; |
| extern const double WebRtcIsac_kQMeanLag4Mid[19]; |
| |
| extern const double WebRtcIsac_kQPitchLagStepsizeMid; |
| |
| |
| /* tables for use with large pitch gain */ |
| |
| /* cdfs for quantized pitch lags */ |
| extern const uint16_t WebRtcIsac_kQPitchLagCdf1Hi[511]; |
| extern const uint16_t WebRtcIsac_kQPitchLagCdf2Hi[68]; |
| extern const uint16_t WebRtcIsac_kQPitchLagCdf3Hi[2]; |
| extern const uint16_t WebRtcIsac_kQPitchLagCdf4Hi[35]; |
| |
| extern const uint16_t *WebRtcIsac_kQPitchLagCdfPtrHi[4]; |
| |
| /* size of first cdf table */ |
| extern const uint16_t WebRtcIsac_kQPitchLagCdfSizeHi[1]; |
| |
| /* index limits and ranges */ |
| extern const int16_t WebRtcIsac_kQindexLowerLimitLagHi[4]; |
| extern const int16_t WebRtcIsac_kQindexUpperLimitLagHi[4]; |
| |
| /* initial index for arithmetic decoder */ |
| extern const uint16_t WebRtcIsac_kQInitIndexLagHi[3]; |
| |
| /* mean values of pitch filter lags */ |
| extern const double WebRtcIsac_kQMeanLag2Hi[67]; |
| extern const double WebRtcIsac_kQMeanLag3Hi[1]; |
| extern const double WebRtcIsac_kQMeanLag4Hi[34]; |
| |
| extern const double WebRtcIsac_kQPitchLagStepsizeHi; |
| |
| /* transform matrix */ |
| extern const double WebRtcIsac_kTransform[4][4]; |
| |
| /* transpose transform matrix */ |
| extern const double WebRtcIsac_kTransformTranspose[4][4]; |
| |
| #endif /* WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_PITCH_LAG_TABLES_H_ */ |