blob: c96fb05b824ae157909dfd3d215e673418c43840 [file] [log] [blame]
/*
* Copyright (c) 2012 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.
*/
/*
* filterbank_tables.h
*
* Header file for variables that are defined in
* filterbank_tables.c.
*
*/
#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_FILTERBANK_TABLES_H_
#define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_FILTERBANK_TABLES_H_
#include "webrtc/typedefs.h"
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
/********************* Coefficient Tables ************************/
/* HPstcoeff_in_Q14 = {a1, a2, b1 - b0 * a1, b2 - b0 * a2}; */
/* [Q30lo Q30hi Q30lo Q30hi Q35lo Q35hi Q35lo Q35hi] */
extern const int16_t WebRtcIsacfix_kHpStCoeffInQ30[8];
/* HPstcoeff_out_1_Q14 = {a1, a2, b1 - b0 * a1, b2 - b0 * a2}; */
/* [Q30lo Q30hi Q30lo Q30hi Q35lo Q35hi Q35lo Q35hi] */
extern const int16_t WebRtcIsacfix_kHPStCoeffOut1Q30[8];
/* HPstcoeff_out_2_Q14 = {a1, a2, b1 - b0 * a1, b2 - b0 * a2}; */
/* [Q30lo Q30hi Q30lo Q30hi Q35lo Q35hi Q35lo Q35hi] */
extern const int16_t WebRtcIsacfix_kHPStCoeffOut2Q30[8];
/* The upper channel all-pass filter factors */
extern const int16_t WebRtcIsacfix_kUpperApFactorsQ15[2];
/* The lower channel all-pass filter factors */
extern const int16_t WebRtcIsacfix_kLowerApFactorsQ15[2];
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
#endif /* WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_FILTERBANK_TABLES_H_ */