99 lines
3.3 KiB
C
99 lines
3.3 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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* lpc_tables.h
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*
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* header file for coding tables for the LPC coefficients
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*
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*/
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#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_LPC_TABLES_H_
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#define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_LPC_TABLES_H_
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#include "typedefs.h"
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/* indices of KLT coefficients used */
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extern const WebRtc_UWord16 WebRtcIsacfix_kSelIndGain[12];
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extern const WebRtc_UWord16 WebRtcIsacfix_kSelIndShape[108];
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/* cdf array for model indicator */
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extern const WebRtc_UWord16 WebRtcIsacfix_kModelCdf[KLT_NUM_MODELS+1];
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/* pointer to cdf array for model indicator */
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extern const WebRtc_UWord16 *WebRtcIsacfix_kModelCdfPtr[1];
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/* initial cdf index for decoder of model indicator */
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extern const WebRtc_UWord16 WebRtcIsacfix_kModelInitIndex[1];
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/* offset to go from rounded value to quantization index */
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extern const WebRtc_Word16 WebRtcIsacfix_kQuantMinGain[12];
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extern const WebRtc_Word16 WebRtcIsacfix_kQuantMinShape[108];
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/* maximum quantization index */
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extern const WebRtc_UWord16 WebRtcIsacfix_kMaxIndGain[12];
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extern const WebRtc_UWord16 WebRtcIsacfix_kMaxIndShape[108];
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/* index offset */
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extern const WebRtc_UWord16 WebRtcIsacfix_kOffsetGain[KLT_NUM_MODELS][12];
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extern const WebRtc_UWord16 WebRtcIsacfix_kOffsetShape[KLT_NUM_MODELS][108];
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/* initial cdf index for KLT coefficients */
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extern const WebRtc_UWord16 WebRtcIsacfix_kInitIndexGain[KLT_NUM_MODELS][12];
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extern const WebRtc_UWord16 WebRtcIsacfix_kInitIndexShape[KLT_NUM_MODELS][108];
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/* offsets for quantizer representation levels */
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extern const WebRtc_UWord16 WebRtcIsacfix_kOfLevelsGain[3];
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extern const WebRtc_UWord16 WebRtcIsacfix_kOfLevelsShape[3];
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/* quantizer representation levels */
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extern const WebRtc_Word32 WebRtcIsacfix_kLevelsGainQ17[1176];
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extern const WebRtc_Word16 WebRtcIsacfix_kLevelsShapeQ10[1735];
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/* cdf tables for quantizer indices */
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extern const WebRtc_UWord16 WebRtcIsacfix_kCdfGain[1212];
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extern const WebRtc_UWord16 WebRtcIsacfix_kCdfShape[2059];
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/* pointers to cdf tables for quantizer indices */
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extern const WebRtc_UWord16 *WebRtcIsacfix_kCdfGainPtr[KLT_NUM_MODELS][12];
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extern const WebRtc_UWord16 *WebRtcIsacfix_kCdfShapePtr[KLT_NUM_MODELS][108];
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/* code length for all coefficients using different models */
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extern const WebRtc_Word16 WebRtcIsacfix_kCodeLenGainQ11[392];
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extern const WebRtc_Word16 WebRtcIsacfix_kCodeLenShapeQ11[577];
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/* left KLT transforms */
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extern const WebRtc_Word16 WebRtcIsacfix_kT1GainQ15[KLT_NUM_MODELS][4];
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extern const WebRtc_Word16 WebRtcIsacfix_kT1ShapeQ15[KLT_NUM_MODELS][324];
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/* right KLT transforms */
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extern const WebRtc_Word16 WebRtcIsacfix_kT2GainQ15[KLT_NUM_MODELS][36];
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extern const WebRtc_Word16 WebRtcIsacfix_kT2ShapeQ15[KLT_NUM_MODELS][36];
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/* means of log gains and LAR coefficients */
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extern const WebRtc_Word16 WebRtcIsacfix_kMeansGainQ8[KLT_NUM_MODELS][12];
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extern const WebRtc_Word32 WebRtcIsacfix_kMeansShapeQ17[3][108];
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#endif /* WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_LPC_TABLES_H_ */
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