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46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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/*
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* pitch_gain_tables.h
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*
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* This file contains tables for the pitch filter side-info in the entropy coder.
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*
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*/
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#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_PITCH_GAIN_TABLES_H_
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#define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_PITCH_GAIN_TABLES_H_
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#include "typedefs.h"
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/* header file for coding tables for the pitch filter side-info in the entropy coder */
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/********************* Pitch Filter Gain Coefficient Tables ************************/
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/* cdf for quantized pitch filter gains */
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extern const WebRtc_UWord16 WebRtcIsac_kQPitchGainCdf[255];
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/* index limits and ranges */
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extern const WebRtc_Word16 WebRtcIsac_kIndexLowerLimitGain[3];
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extern const WebRtc_Word16 WebRtcIsac_kIndexUpperLimitGain[3];
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extern const WebRtc_UWord16 WebRtcIsac_kIndexMultsGain[2];
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/* mean values of pitch filter gains */
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//(Y)
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extern const WebRtc_Word16 WebRtcIsac_kQMeanGain1Q12[144];
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extern const WebRtc_Word16 WebRtcIsac_kQMeanGain2Q12[144];
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extern const WebRtc_Word16 WebRtcIsac_kQMeanGain3Q12[144];
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extern const WebRtc_Word16 WebRtcIsac_kQMeanGain4Q12[144];
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//(Y)
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/* size of cdf table */
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extern const WebRtc_UWord16 WebRtcIsac_kQCdfTableSizeGain[1];
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#endif /* WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_PITCH_GAIN_TABLES_H_ */
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