/* * 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_gain_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_GAIN_TABLES_H_ #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_PITCH_GAIN_TABLES_H_ #include "webrtc/typedefs.h" /* header file for coding tables for the pitch filter side-info in the entropy coder */ /********************* Pitch Filter Gain Coefficient Tables ************************/ /* cdf for quantized pitch filter gains */ extern const uint16_t WebRtcIsac_kQPitchGainCdf[255]; /* index limits and ranges */ extern const int16_t WebRtcIsac_kIndexLowerLimitGain[3]; extern const int16_t WebRtcIsac_kIndexUpperLimitGain[3]; extern const uint16_t WebRtcIsac_kIndexMultsGain[2]; /* mean values of pitch filter gains */ //(Y) extern const int16_t WebRtcIsac_kQMeanGain1Q12[144]; extern const int16_t WebRtcIsac_kQMeanGain2Q12[144]; extern const int16_t WebRtcIsac_kQMeanGain3Q12[144]; extern const int16_t WebRtcIsac_kQMeanGain4Q12[144]; //(Y) /* size of cdf table */ extern const uint16_t WebRtcIsac_kQCdfTableSizeGain[1]; #endif /* WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_PITCH_GAIN_TABLES_H_ */