BesLoudness_exp.h
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/*****************************************************************************
* Copyright Statement:
* --------------------
* This software is protected by Copyright and the information contained
* herein is confidential. The software may not be copied and the information
* contained herein may not be used or disclosed except with the written
* permission of MediaTek Inc. (C) 2005
*
* BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
* RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON
* AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
* NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
* SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
* SUPPLIED WITH THE MEDIATEK SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH
* THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO
* NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S
* SPECIFICATION OR TO CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
*
* BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
* LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
* AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
* OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY BUYER TO
* MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
*
* THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE
* WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT OF
* LAWS PRINCIPLES. ANY DISPUTES, CONTROVERSIES OR CLAIMS ARISING THEREOF AND
* RELATED THERETO SHALL BE SETTLED BY ARBITRATION IN SAN FRANCISCO, CA, UNDER
* THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE (ICC).
*
*****************************************************************************/
/*****************************************************************************
*
* Filename:
* ---------
* BesLoudness_exp.h
*
* Project:
* --------
* SWIP
*
* Description:
* ------------
* BesLoudness interface
*
* Author:
* -------
* -------
*
*============================================================================
* HISTORY
* Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
*------------------------------------------------------------------------------
* removed!
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*------------------------------------------------------------------------------
* Upper this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
*============================================================================
****************************************************************************/
/* interface functions */
#ifndef BLOUDEXP_H
#define BLOUDEXP_H
#include "BesSound_exp.h"
/* NULL definition */
#ifndef NULL
#define NULL 0
#endif
/*---------------------------------------------------------------------------
Enumerator Definition
---------------------------------------------------------------------------*/
typedef enum {
BLOUD_MONO = 1, // Mono
BLOUD_STEREO = 2, // Stereo
} BLOUD_CHANNEL_NUM;
typedef enum {
BLOUD_FALSE = 0, // False
BLOUD_TRUE = 1, // True
} BLOUD_BOOL;
typedef enum {
FILT_MODE_NONE = 0, // Disable Filter
FILT_MODE_COMP_FLT = 1, // Compenastion Filter
FILT_MODE_LOUD_FLT = 2, // Loudness Filter
FILT_MODE_COMP_HDP = 3, // Compensation Filter for Headphone
} FILT_MODE_ENUM;
typedef enum {
LOUD_MODE_NONE = 0, // None DRC
LOUD_MODE_BASIC = 1, // Basic DRC
LOUD_MODE_ENHANCED = 2, // Enhanced DRC
LOUD_MODE_AGGRESSIVE = 3, // Aggressive DRC
} LOUD_MODE_ENUM;
typedef struct {
unsigned int k[5];
}BLOUD_Coef_Q5p27;
typedef struct {
unsigned int k[3];
}BLOUD_Coef_Q2p14;
typedef struct {
BLOUD_Coef_Q5p27 q5p27[2];
BLOUD_Coef_Q2p14 q2p14[9];
}BLOUD_FilterCoef_FixFreq;
/***************************************************************************************
| STRUCTURE
|
| BLOUD_CustomParam
|
| MEMBERS
|
| WS_Gain_Max Wave shaping maximum gain, format Q2.14, set to 0 would use the default value
| WS_Gain_Min Wave shaping minimum gain, format Q2.14, set to 0 would use the default value
|
| Filter_First Choose the position of the DRC / filter stage order
| 0: DRC First
| 1: Filter First
|
| Att_Time Attack time , unit: 0.1 ms / 6dB
| Rel_Time Release time, unit: 0.1 ms / 6dB
|
| Gain_Map_In[5] Gain mapping for input signal , unit: dB
| |
| +--------> Input level index
| 0: Th, noise gate threshold
| 1: Ex, expansion end point
| 2: Cp, compression start point
| 3: Ed, target level
| 4: Lm, limitation end point
|
| Gain_Map_Out[5] Gain mapping for output signal, unit: dB
| |
| +-------> Output level index
| 0: Th, noise gate threshold
| 1: Ex, expansion end point
| 2: Cp, compression start point
| 3: Ed, target level
| 4: Lm, limitation end point
|**************************************************************************************/
typedef struct {
unsigned int WS_Gain_Max; // Q2.14
unsigned int WS_Gain_Min; // Q2.14
unsigned int Filter_First; // 0: DRC First, 1: Filter First
unsigned int Att_Time; // unit: 0.1 ms / 6dB
unsigned int Rel_Time; // unit: 0.1 ms / 6dB
char Gain_Map_In[5]; // in DB
char Gain_Map_Out[5]; // in DB
}BLOUD_CustomParam;
/***************************************************************************************
| STRUCTURE
|
| BLOUD_InitParam
|
| MEMBERS
|
| Channel_Num Channel number, only support: 1 or 2
| Sample_Rate Input signal sampling rate, unit: Hz
| Support 9 kinds of sampling rates:
| 48000, 44100, 32000,
| 24000, 22050, 16000,
| 12000, 11025, 8000
|
| Filter_Mode Audio compensation filter mode selection
| 0 (FILT_MODE_NONE):
| Disable audio compensation filter
| 1 (FILT_MODE_COMP_FLT):
| Use the customized filter coefficients for loudspeaker
| 2 (FILT_MODE_LOUD_FLT):
| If no customized filter coefficients,
| SWIP would apply the default loudness filters
| 3 (FILT_MODE_COMP_HDP):
| Use the customized filter coefficients for headphone,
| which support more precise filter resolution for HPF
|
| Loudness_Mode Loudness mode selection
| 0 (LOUD_MODE_NONE):
| Disable dynamic range control (DRC)
| 1 (LOUD_MODE_BASIC):
| Enable DRC
| 2 (LOUD_MODE_ENHANCED):
| Enable DRC and basic wave shaping,
| only valid under filter mode: FILT_MODE_LOUD_FLT
| 3 (LOUD_MODE_AGGRESSIVE):
| Enable DRC and aggressive wave shaping
| only valid under filter mode: FILT_MODE_LOUD_FLT
|
| pCustom_Param Pointer to the custom parameter fields
|
| pFilter_Coef Pointer to the filter coefficient fields
|
|**************************************************************************************/
typedef struct {
unsigned int Channel_Num;
unsigned int Sample_Rate;
unsigned int Filter_Mode;
unsigned int Loudness_Mode;
BLOUD_CustomParam *pCustom_Param;
BLOUD_FilterCoef_FixFreq *pFilter_Coef;
}BLOUD_InitParam;
int BLOUD_SetHandle(BS_Handle *pHandle);
// [Head] For Driver
typedef struct {
unsigned int HSF_Coeff[9][4];
unsigned int BPF_Coeff[4][6][3];
unsigned int DRC_Forget_Table[9][2];
unsigned int WS_Gain_Max; // Q2.14
unsigned int WS_Gain_Min; // Q2.14
unsigned int Filter_First; // 0: DRC First, 1: Filter First
char Gain_Map_In[5]; // in DB
char Gain_Map_Out[5]; // in DB
}BLOUD_CustomParam_V3;
/***************************************************************************************
| STRUCTURE
|
| BLOUD_FilterCoef_NvramFreq
|
| MEMBERS
|
| HPF_COEF [2][9][5] High-pass filter coefficients
| | | | -1 -2
| | | | b0 + b1 x z + b2 x z
| | | | H(z) = -------------------------
| | | | -1 -2
| | | | 1 + a1 x z + a2 x z
| | | |
| +-----------> HPF index
| | | 0: HPF1
| | | 1: HPF2
| | |
| +--------> Sampling rate
| | 0: 48000Hz
| | 1: 44100Hz
| | 2: 32000Hz
| | 3: 24000Hz
| | 4: 22050Hz
| | 5: 16000Hz
| | 6: 12000Hz
| | 7: 11025Hz
| | 8: 8000Hz
| |
| +-----> HPF coefficients
| (FILT_MODE_COMP_FLT or FILT_MODE_LOUD_FLT)
| 0: b0, format: signed Q5.27
| 1: b1, format: signed Q5.27
| 2: b2, format: signed Q5.27
| 3: [-a1 | -a2], format: [signed Q2.14 | signed Q2.14]
| 4: all zeros
| (FILT_MODE_COMP_HDP)
| 0: b0, format: signed Q5.27
| 1: b1, format: signed Q5.27
| 2: b2, format: signed Q5.27
| 3: [-a1 | -a2], format: [signed Q2.30 upper 16-bit | signed Q2.30 upper 16-bit]
| 4: [-a1 | -a2], format: [signed Q2.30 lower 16-bit | signed Q2.30 lower 16-bit]
|
| BPF_COEF [6][6][3] Band-pass filter coefficients
| | | | -1 -2
| | | | b0 + b1 x z + b2 x z
| | | | H(z) = -------------------------
| | | | -1 -2
| | | | 1 + a1 x z + a2 x z
| | | |
| +-----------> BPF index
| | | 0: BPF1
| | | 1: BPF2
| | | 2: BPF3
| | | 3: BPF4
| | | 4: BPF5
| | | 5: BPF6
| | |
| +--------> Sampling rate
| | 0: 48000Hz
| | 1: 44100Hz
| | 2: 32000Hz
| | 3: 24000Hz
| | 4: 22050Hz
| | 5: 16000Hz
| |
| +-----> BPF coefficients
| 0: [ b0 | b1], format: [signed Q2.14 | signed Q2.14]
| 1: [ b2 | -a1], format: [signed Q2.14 | signed Q2.14]
| 2: [-a2 | 0], format: [signed Q2.14 | all zeros]
|
| LPF_COEF [6][3] Low-pass filter coefficients
| | | -1 -2
| | | b0 + b1 x z + b2 x z
| | | H(z) = -------------------------
| | | -1 -2
| | | 1 + a1 x z + a2 x z
| | |
| +-----------> Sampling rate
| | 0: 48000Hz
| | 1: 44100Hz
| | 2: 32000Hz
| | 3: 24000Hz
| | 4: 22050Hz
| | 5: 16000Hz
| |
| +--------> LPF coefficients
| 0: [ b0 | b1], format: [signed Q2.14 | signed Q2.14]
| 1: [ b2 | -a1], format: [signed Q2.14 | signed Q2.14]
| 2: [-a2 | 0], format: [signed Q2.14 | all zeros]
|
|**************************************************************************************/
typedef struct {
unsigned int HPF_COEF[2][9][5];
unsigned int BPF_COEF[6][6][3];
unsigned int LPF_COEF[6][3];
}BLOUD_FilterCoef_NvramFreq;
typedef struct {
BLOUD_FilterCoef_NvramFreq spk_flt_param;
BLOUD_FilterCoef_NvramFreq hdp_flt_param;
BLOUD_CustomParam custom_param;
}BLOUD_NVRAM_Param_V4;
// [Tail] For Driver
#endif