| /* |
| * Copyright (C) 2004-2010 NXP Software |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef __LVEQNB_PRIVATE_H__ |
| #define __LVEQNB_PRIVATE_H__ |
| |
| /****************************************************************************************/ |
| /* */ |
| /* Includes */ |
| /* */ |
| /****************************************************************************************/ |
| |
| #include "LVEQNB.h" /* Calling or Application layer definitions */ |
| #include "BIQUAD.h" |
| #include "LVC_Mixer.h" |
| |
| /****************************************************************************************/ |
| /* */ |
| /* Defines */ |
| /* */ |
| /****************************************************************************************/ |
| |
| /* General */ |
| #define LVEQNB_INVALID 0xFFFF /* Invalid init parameter */ |
| |
| /* Memory */ |
| #define LVEQNB_INSTANCE_ALIGN 4 /* 32-bit alignment for instance structures */ |
| #define LVEQNB_DATA_ALIGN 4 /* 32-bit alignment for structures */ |
| #define LVEQNB_COEF_ALIGN 4 /* 32-bit alignment for long words */ |
| #ifdef SUPPORT_MC |
| /* Number of buffers required for inplace processing */ |
| #define LVEQNB_SCRATCHBUFFERS (LVM_MAX_CHANNELS * 2) |
| #else |
| #define LVEQNB_SCRATCHBUFFERS 4 /* Number of buffers required for inplace processing */ |
| #endif |
| #define LVEQNB_SCRATCH_ALIGN 4 /* 32-bit alignment for long data */ |
| |
| #define LVEQNB_BYPASS_MIXER_TC 100 /* Bypass Mixer TC */ |
| |
| /****************************************************************************************/ |
| /* */ |
| /* Types */ |
| /* */ |
| /****************************************************************************************/ |
| |
| /* Filter biquad types */ |
| typedef enum |
| { |
| LVEQNB_SinglePrecision_Float = -1, |
| LVEQNB_SinglePrecision = 0, |
| LVEQNB_DoublePrecision = 1, |
| LVEQNB_OutOfRange = 2, |
| LVEQNB_BIQUADTYPE_MAX = LVM_MAXINT_32 |
| } LVEQNB_BiquadType_en; |
| |
| /****************************************************************************************/ |
| /* */ |
| /* Structures */ |
| /* */ |
| /****************************************************************************************/ |
| |
| /* Instance structure */ |
| typedef struct |
| { |
| /* Public parameters */ |
| LVEQNB_MemTab_t MemoryTable; /* Instance memory allocation table */ |
| LVEQNB_Params_t Params; /* Instance parameters */ |
| LVEQNB_Capabilities_t Capabilities; /* Instance capabilities */ |
| |
| /* Aligned memory pointers */ |
| LVM_FLOAT *pFastTemporary; /* Fast temporary data base address */ |
| |
| Biquad_2I_Order2_FLOAT_Taps_t *pEQNB_Taps_Float; /* Equaliser Taps */ |
| Biquad_FLOAT_Instance_t *pEQNB_FilterState_Float; /* State for each filter band */ |
| |
| /* Filter definitions and call back */ |
| LVM_UINT16 NBands; /* Number of bands */ |
| LVEQNB_BandDef_t *pBandDefinitions; /* Filter band definitions */ |
| LVEQNB_BiquadType_en *pBiquadType; /* Filter biquad types */ |
| |
| /* Bypass variable */ |
| LVMixer3_2St_FLOAT_st BypassMixer; |
| |
| LVM_INT16 bInOperatingModeTransition; /* Operating mode transition flag */ |
| |
| } LVEQNB_Instance_t; |
| |
| /****************************************************************************************/ |
| /* */ |
| /* Function prototypes */ |
| /* */ |
| /****************************************************************************************/ |
| |
| void LVEQNB_SetFilters(LVEQNB_Instance_t *pInstance, |
| LVEQNB_Params_t *pParams); |
| |
| void LVEQNB_SetCoefficients(LVEQNB_Instance_t *pInstance); |
| |
| void LVEQNB_ClearFilterHistory(LVEQNB_Instance_t *pInstance); |
| LVEQNB_ReturnStatus_en LVEQNB_SinglePrecCoefs(LVM_UINT16 Fs, |
| LVEQNB_BandDef_t *pFilterDefinition, |
| PK_FLOAT_Coefs_t *pCoefficients); |
| |
| LVM_INT32 LVEQNB_BypassMixerCallBack (void* hInstance, void *pGeneralPurpose, LVM_INT16 CallbackParam); |
| |
| #endif /* __LVEQNB_PRIVATE_H__ */ |
| |