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Diffstat (limited to 'media/libeffects/lvm/lib/Eq/src/LVEQNB_Private.h')
| -rwxr-xr-x | media/libeffects/lvm/lib/Eq/src/LVEQNB_Private.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/media/libeffects/lvm/lib/Eq/src/LVEQNB_Private.h b/media/libeffects/lvm/lib/Eq/src/LVEQNB_Private.h new file mode 100755 index 0000000..0ae84af --- /dev/null +++ b/media/libeffects/lvm/lib/Eq/src/LVEQNB_Private.h @@ -0,0 +1,141 @@ +/* + * 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. + */ + +/********************************************************************************** + + $Author: beq07716 $ + $Revision: 1005 $ + $Date: 2010-06-28 13:58:28 +0200 (Mon, 28 Jun 2010) $ + +***********************************************************************************/ + +#ifndef __LVEQNB_PRIVATE_H__ +#define __LVEQNB_PRIVATE_H__ + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + + +/****************************************************************************************/ +/* */ +/* 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 */ +#define LVEQNB_SCRATCHBUFFERS 4 /* Number of buffers required for inplace processing */ +#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 = 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_INT16 *pFastTemporary; /* Fast temporary data base address */ + + /* Process variables */ + Biquad_2I_Order2_Taps_t *pEQNB_Taps; /* Equaliser Taps */ + Biquad_Instance_t *pEQNB_FilterState; /* 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_st BypassMixer; /* Bypass mixer used in transitions */ + 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_C16_Coefs_t *pCoefficients); + +LVEQNB_ReturnStatus_en LVEQNB_DoublePrecCoefs(LVM_UINT16 Fs, + LVEQNB_BandDef_t *pFilterDefinition, + PK_C32_Coefs_t *pCoefficients); + +LVM_INT32 LVEQNB_BypassMixerCallBack (void* hInstance, void *pGeneralPurpose, LVM_INT16 CallbackParam); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* __LVEQNB_PRIVATE_H__ */ + |