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/*
* 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: 1002 $
$Date: 2010-06-28 13:40:09 +0200 (Mon, 28 Jun 2010) $
*****************************************************************************************/
/****************************************************************************************/
/* */
/* Includes */
/* */
/****************************************************************************************/
#include "LVM_Private.h"
#include "VectorArithmetic.h"
#include "LVM_Coeffs.h"
/****************************************************************************************/
/* */
/* FUNCTION: LVM_Process */
/* */
/* DESCRIPTION: */
/* Process function for the LifeVibes module. */
/* */
/* PARAMETERS: */
/* hInstance Instance handle */
/* pInData Pointer to the input data */
/* pOutData Pointer to the output data */
/* NumSamples Number of samples in the input buffer */
/* AudioTime Audio Time of the current input buffer in ms */
/* */
/* RETURNS: */
/* LVM_SUCCESS Succeeded */
/* LVM_INVALIDNUMSAMPLES When the NumSamples is not a valied multiple in unmanaged */
/* buffer mode */
/* LVM_ALIGNMENTERROR When either the input our output buffers are not 32-bit */
/* aligned in unmanaged mode */
/* LVM_NULLADDRESS When one of hInstance, pInData or pOutData is NULL */
/* */
/* NOTES: */
/* */
/****************************************************************************************/
LVM_ReturnStatus_en LVM_Process(LVM_Handle_t hInstance,
const LVM_INT16 *pInData,
LVM_INT16 *pOutData,
LVM_UINT16 NumSamples,
LVM_UINT32 AudioTime)
{
LVM_Instance_t *pInstance = (LVM_Instance_t *)hInstance;
LVM_UINT16 SampleCount = NumSamples;
LVM_INT16 *pInput = (LVM_INT16 *)pInData;
LVM_INT16 *pToProcess = (LVM_INT16 *)pInData;
LVM_INT16 *pProcessed = pOutData;
LVM_ReturnStatus_en Status;
/*
* Check if the number of samples is zero
*/
if (NumSamples == 0)
{
return(LVM_SUCCESS);
}
/*
* Check valid points have been given
*/
if ((hInstance == LVM_NULL) || (pInData == LVM_NULL) || (pOutData == LVM_NULL))
{
return (LVM_NULLADDRESS);
}
/*
* For unmanaged mode only
*/
if(pInstance->InstParams.BufferMode == LVM_UNMANAGED_BUFFERS)
{
/*
* Check if the number of samples is a good multiple (unmanaged mode only)
*/
if((NumSamples % pInstance->BlickSizeMultiple) != 0)
{
return(LVM_INVALIDNUMSAMPLES);
}
/*
* Check the buffer alignment
*/
if((((LVM_UINT32)pInData % 4) != 0) || (((LVM_UINT32)pOutData % 4) != 0))
{
return(LVM_ALIGNMENTERROR);
}
}
/*
* Update new parameters if necessary
*/
if (pInstance->ControlPending == LVM_TRUE)
{
Status = LVM_ApplyNewSettings(hInstance);
if(Status != LVM_SUCCESS)
{
return Status;
}
}
/*
* Convert from Mono if necessary
*/
if (pInstance->Params.SourceFormat == LVM_MONO)
{
MonoTo2I_16(pInData, /* Source */
pOutData, /* Destination */
(LVM_INT16)NumSamples); /* Number of input samples */
pInput = pOutData;
pToProcess = pOutData;
}
/*
* Process the data with managed buffers
*/
while (SampleCount != 0)
{
/*
* Manage the input buffer and frame processing
*/
LVM_BufferIn(hInstance,
pInput,
&pToProcess,
&pProcessed,
&SampleCount);
/*
* Only process data when SampleCount is none zero, a zero count can occur when
* the BufferIn routine is working in managed mode.
*/
if (SampleCount != 0)
{
/*
* Apply ConcertSound if required
*/
if (pInstance->CS_Active == LVM_TRUE)
{
(void)LVCS_Process(pInstance->hCSInstance, /* Concert Sound instance handle */
pToProcess,
pProcessed,
SampleCount);
pToProcess = pProcessed;
}
/*
* Apply volume if required
*/
if (pInstance->VC_Active!=0)
{
LVC_MixSoft_1St_D16C31_SAT(&pInstance->VC_Volume,
pToProcess,
pProcessed,
(LVM_INT16)(2*SampleCount)); /* Left and right*/
pToProcess = pProcessed;
}
/*
* Call N-Band equaliser if enabled
*/
if (pInstance->EQNB_Active == LVM_TRUE)
{
LVEQNB_Process(pInstance->hEQNBInstance, /* N-Band equaliser instance handle */
pToProcess,
pProcessed,
SampleCount);
pToProcess = pProcessed;
}
/*
* Call bass enhancement if enabled
*/
if (pInstance->DBE_Active == LVM_TRUE)
{
LVDBE_Process(pInstance->hDBEInstance, /* Dynamic Bass Enhancement instance handle */
pToProcess,
pProcessed,
SampleCount);
pToProcess = pProcessed;
}
/*
* Bypass mode or everything off, so copy the input to the output
*/
if (pToProcess != pProcessed)
{
Copy_16(pToProcess, /* Source */
pProcessed, /* Destination */
(LVM_INT16)(2*SampleCount)); /* Left and right */
}
/*
* Apply treble boost if required
*/
if (pInstance->TE_Active == LVM_TRUE)
{
/*
* Apply the filter
*/
FO_2I_D16F32C15_LShx_TRC_WRA_01(&pInstance->pTE_State->TrebleBoost_State,
pProcessed,
pProcessed,
(LVM_INT16)SampleCount);
}
/*
* Volume balance
*/
LVC_MixSoft_1St_2i_D16C31_SAT(&pInstance->VC_BalanceMix,
pProcessed,
pProcessed,
SampleCount);
/*
* Perform Parametric Spectum Analysis
*/
if ((pInstance->Params.PSA_Enable == LVM_PSA_ON)&&(pInstance->InstParams.PSA_Included==LVM_PSA_ON))
{
From2iToMono_16(pProcessed,
pInstance->pPSAInput,
(LVM_INT16) (SampleCount));
LVPSA_Process(pInstance->hPSAInstance,
pInstance->pPSAInput,
(LVM_UINT16) (SampleCount),
AudioTime);
}
/*
* DC removal
*/
DC_2I_D16_TRC_WRA_01(&pInstance->DC_RemovalInstance,
pProcessed,
pProcessed,
(LVM_INT16)SampleCount);
}
/*
* Manage the output buffer
*/
LVM_BufferOut(hInstance,
pOutData,
&SampleCount);
}
return(LVM_SUCCESS);
}
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