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In order to eliminate the WebRTC Subtree mirror in Chromium, WebRTC is moving the content of the src/webrtc directory up to the src/ directory. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38 Reviewed-on: https://webrtc-review.googlesource.com/1560 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19845}
100 lines
3 KiB
C
100 lines
3 KiB
C
/*
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* Copyright (c) 2012 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_MAIN_SOURCE_LPC_TABLES_H_
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#define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_LPC_TABLES_H_
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#include "structs.h"
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#include "settings.h"
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#define KLT_STEPSIZE 1.00000000
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#define KLT_NUM_AVG_GAIN 0
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#define KLT_NUM_AVG_SHAPE 0
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#define KLT_NUM_MODELS 3
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#define LPC_GAIN_SCALE 4.000f
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#define LPC_LOBAND_SCALE 2.100f
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#define LPC_LOBAND_ORDER ORDERLO
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#define LPC_HIBAND_SCALE 0.450f
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#define LPC_HIBAND_ORDER ORDERHI
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#define LPC_GAIN_ORDER 2
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#define LPC_SHAPE_ORDER (LPC_LOBAND_ORDER + LPC_HIBAND_ORDER)
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#define KLT_ORDER_GAIN (LPC_GAIN_ORDER * SUBFRAMES)
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#define KLT_ORDER_SHAPE (LPC_SHAPE_ORDER * SUBFRAMES)
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/* cdf array for model indicator */
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extern const uint16_t WebRtcIsac_kQKltModelCdf[KLT_NUM_MODELS+1];
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/* pointer to cdf array for model indicator */
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extern const uint16_t *WebRtcIsac_kQKltModelCdfPtr[1];
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/* initial cdf index for decoder of model indicator */
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extern const uint16_t WebRtcIsac_kQKltModelInitIndex[1];
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/* offset to go from rounded value to quantization index */
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extern const short WebRtcIsac_kQKltQuantMinGain[12];
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extern const short WebRtcIsac_kQKltQuantMinShape[108];
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/* maximum quantization index */
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extern const uint16_t WebRtcIsac_kQKltMaxIndGain[12];
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extern const uint16_t WebRtcIsac_kQKltMaxIndShape[108];
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/* index offset */
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extern const uint16_t WebRtcIsac_kQKltOffsetGain[12];
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extern const uint16_t WebRtcIsac_kQKltOffsetShape[108];
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/* initial cdf index for KLT coefficients */
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extern const uint16_t WebRtcIsac_kQKltInitIndexGain[12];
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extern const uint16_t WebRtcIsac_kQKltInitIndexShape[108];
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/* quantizer representation levels */
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extern const double WebRtcIsac_kQKltLevelsGain[392];
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extern const double WebRtcIsac_kQKltLevelsShape[578];
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/* cdf tables for quantizer indices */
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extern const uint16_t WebRtcIsac_kQKltCdfGain[404];
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extern const uint16_t WebRtcIsac_kQKltCdfShape[686];
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/* pointers to cdf tables for quantizer indices */
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extern const uint16_t *WebRtcIsac_kQKltCdfPtrGain[12];
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extern const uint16_t *WebRtcIsac_kQKltCdfPtrShape[108];
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/* left KLT transforms */
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extern const double WebRtcIsac_kKltT1Gain[4];
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extern const double WebRtcIsac_kKltT1Shape[324];
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/* right KLT transforms */
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extern const double WebRtcIsac_kKltT2Gain[36];
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extern const double WebRtcIsac_kKltT2Shape[36];
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/* means of log gains and LAR coefficients */
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extern const double WebRtcIsac_kLpcMeansGain[12];
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extern const double WebRtcIsac_kLpcMeansShape[108];
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#endif /* WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_LPC_TABLES_H_ */
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