| /* |
| * 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_FIX_SOURCE_PITCH_LAG_TABLES_H_ |
| #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_PITCH_LAG_TABLES_H_ |
| |
| #include "webrtc/typedefs.h" |
| |
| /********************* Pitch Filter Lag Coefficient Tables ************************/ |
| |
| /* tables for use with small pitch gain */ |
| |
| /* cdfs for quantized pitch lags */ |
| extern const uint16_t WebRtcIsacfix_kPitchLagCdf1Lo[127]; |
| extern const uint16_t WebRtcIsacfix_kPitchLagCdf2Lo[20]; |
| extern const uint16_t WebRtcIsacfix_kPitchLagCdf3Lo[2]; |
| extern const uint16_t WebRtcIsacfix_kPitchLagCdf4Lo[10]; |
| |
| extern const uint16_t *WebRtcIsacfix_kPitchLagPtrLo[4]; |
| |
| /* size of first cdf table */ |
| extern const uint16_t WebRtcIsacfix_kPitchLagSizeLo[1]; |
| |
| /* index limits and ranges */ |
| extern const int16_t WebRtcIsacfix_kLowerLimitLo[4]; |
| extern const int16_t WebRtcIsacfix_kUpperLimitLo[4]; |
| |
| /* initial index for arithmetic decoder */ |
| extern const uint16_t WebRtcIsacfix_kInitIndLo[3]; |
| |
| /* mean values of pitch filter lags */ |
| extern const int16_t WebRtcIsacfix_kMeanLag2Lo[19]; |
| extern const int16_t WebRtcIsacfix_kMeanLag4Lo[9]; |
| |
| |
| |
| /* tables for use with medium pitch gain */ |
| |
| /* cdfs for quantized pitch lags */ |
| extern const uint16_t WebRtcIsacfix_kPitchLagCdf1Mid[255]; |
| extern const uint16_t WebRtcIsacfix_kPitchLagCdf2Mid[36]; |
| extern const uint16_t WebRtcIsacfix_kPitchLagCdf3Mid[2]; |
| extern const uint16_t WebRtcIsacfix_kPitchLagCdf4Mid[20]; |
| |
| extern const uint16_t *WebRtcIsacfix_kPitchLagPtrMid[4]; |
| |
| /* size of first cdf table */ |
| extern const uint16_t WebRtcIsacfix_kPitchLagSizeMid[1]; |
| |
| /* index limits and ranges */ |
| extern const int16_t WebRtcIsacfix_kLowerLimitMid[4]; |
| extern const int16_t WebRtcIsacfix_kUpperLimitMid[4]; |
| |
| /* initial index for arithmetic decoder */ |
| extern const uint16_t WebRtcIsacfix_kInitIndMid[3]; |
| |
| /* mean values of pitch filter lags */ |
| extern const int16_t WebRtcIsacfix_kMeanLag2Mid[35]; |
| extern const int16_t WebRtcIsacfix_kMeanLag4Mid[19]; |
| |
| |
| /* tables for use with large pitch gain */ |
| |
| /* cdfs for quantized pitch lags */ |
| extern const uint16_t WebRtcIsacfix_kPitchLagCdf1Hi[511]; |
| extern const uint16_t WebRtcIsacfix_kPitchLagCdf2Hi[68]; |
| extern const uint16_t WebRtcIsacfix_kPitchLagCdf3Hi[2]; |
| extern const uint16_t WebRtcIsacfix_kPitchLagCdf4Hi[35]; |
| |
| extern const uint16_t *WebRtcIsacfix_kPitchLagPtrHi[4]; |
| |
| /* size of first cdf table */ |
| extern const uint16_t WebRtcIsacfix_kPitchLagSizeHi[1]; |
| |
| /* index limits and ranges */ |
| extern const int16_t WebRtcIsacfix_kLowerLimitHi[4]; |
| extern const int16_t WebRtcIsacfix_kUpperLimitHi[4]; |
| |
| /* initial index for arithmetic decoder */ |
| extern const uint16_t WebRtcIsacfix_kInitIndHi[3]; |
| |
| /* mean values of pitch filter lags */ |
| extern const int16_t WebRtcIsacfix_kMeanLag2Hi[67]; |
| extern const int16_t WebRtcIsacfix_kMeanLag4Hi[34]; |
| |
| |
| #endif /* WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_PITCH_LAG_TABLES_H_ */ |