1 /* 2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 /* 12 * pitch_gain_tables.h 13 * 14 * This file contains tables for the pitch filter side-info in the entropy 15 * coder. 16 * 17 */ 18 19 #ifndef MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_PITCH_GAIN_TABLES_H_ 20 #define MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_PITCH_GAIN_TABLES_H_ 21 22 #include <stdint.h> 23 24 /* header file for coding tables for the pitch filter side-info in the entropy 25 * coder */ 26 /********************* Pitch Filter Gain Coefficient Tables 27 * ************************/ 28 /* cdf for quantized pitch filter gains */ 29 extern const uint16_t WebRtcIsac_kQPitchGainCdf[255]; 30 31 /* index limits and ranges */ 32 extern const int16_t WebRtcIsac_kIndexLowerLimitGain[3]; 33 34 extern const int16_t WebRtcIsac_kIndexUpperLimitGain[3]; 35 extern const uint16_t WebRtcIsac_kIndexMultsGain[2]; 36 37 /* mean values of pitch filter gains */ 38 //(Y) 39 extern const int16_t WebRtcIsac_kQMeanGain1Q12[144]; 40 extern const int16_t WebRtcIsac_kQMeanGain2Q12[144]; 41 extern const int16_t WebRtcIsac_kQMeanGain3Q12[144]; 42 extern const int16_t WebRtcIsac_kQMeanGain4Q12[144]; 43 //(Y) 44 45 /* size of cdf table */ 46 extern const uint16_t WebRtcIsac_kQCdfTableSizeGain[1]; 47 48 #endif /* MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_PITCH_GAIN_TABLES_H_ */ 49