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-rw-r--r--media/libeffects/lvm/lib/SpectrumAnalyzer/src/LVPSA_QPD_Process.c212
1 files changed, 0 insertions, 212 deletions
diff --git a/media/libeffects/lvm/lib/SpectrumAnalyzer/src/LVPSA_QPD_Process.c b/media/libeffects/lvm/lib/SpectrumAnalyzer/src/LVPSA_QPD_Process.c
deleted file mode 100644
index 67197c1..0000000
--- a/media/libeffects/lvm/lib/SpectrumAnalyzer/src/LVPSA_QPD_Process.c
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- * 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.
- */
-
-#include "LVPSA_QPD.h"
-#include "LVPSA_Private.h"
-
-/************************************************************************************/
-/* */
-/* FUNCTION: LVPSA_QPD_WritePeak */
-/* */
-/* DESCRIPTION: */
-/* Write a level value in the buffer in the corresponding band. */
-/* */
-/* PARAMETERS: */
-/* pInst Pointer to the LVPSA instance */
-/* ppWrite Pointer to pointer to the buffer */
-/* CallNumber Number of the band the value should be written in */
-/* Value Value to write in the buffer */
-/* */
-/* RETURNS: void */
-/* */
-/************************************************************************************/
-void LVPSA_QPD_WritePeak( pLVPSA_InstancePr_t pLVPSA_Inst,
- LVM_UINT8 **ppWrite,
- LVM_INT16 BandIndex,
- LVM_INT16 Value );
-
-
-
-/************************************************************************************/
-/* */
-/* FUNCTION: LVPSA_QPD_Process */
-/* */
-/* DESCRIPTION: */
-/* Apply downsampling, post gain, quasi peak filtering and write the levels values */
-/* in the buffer every 20 ms. */
-/* */
-/* PARAMETERS: */
-/* */
-/* RETURNS: void */
-/* */
-/************************************************************************************/
-void LVPSA_QPD_Process ( void *hInstance,
- LVM_INT16 *pInSamps,
- LVM_INT16 numSamples,
- LVM_INT16 BandIndex)
-{
-
- /******************************************************************************
- PARAMETERS
- *******************************************************************************/
- LVPSA_InstancePr_t *pLVPSA_Inst = (LVPSA_InstancePr_t*)hInstance;
- QPD_State_t *pQPDState = (QPD_State_t*)&pLVPSA_Inst->pQPD_States[BandIndex];
-
- /* Pointer to taps */
- LVM_INT32* pDelay = pQPDState->pDelay;
-
- /* Parameters needed during quasi peak calculations */
- LVM_INT32 X0;
- LVM_INT32 temp,temp2;
- LVM_INT32 accu;
- LVM_INT16 Xg0;
- LVM_INT16 D0;
- LVM_INT16 V0 = (LVM_INT16)(*pDelay);
-
- /* Filter's coef */
- LVM_INT32 Kp = pQPDState->Coefs[0];
- LVM_INT32 Km = pQPDState->Coefs[1];
-
- LVM_INT16 ii = numSamples;
-
- LVM_UINT8 *pWrite = pLVPSA_Inst->pSpectralDataBufferWritePointer;
- LVM_INT32 BufferUpdateSamplesCount = pLVPSA_Inst->BufferUpdateSamplesCount;
- LVM_UINT16 DownSamplingFactor = pLVPSA_Inst->DownSamplingFactor;
-
- /******************************************************************************
- INITIALIZATION
- *******************************************************************************/
- /* Correct the pointer to take the first down sampled signal sample */
- pInSamps += pLVPSA_Inst->DownSamplingCount;
- /* Correct also the number of samples */
- ii = (LVM_INT16)(ii - (LVM_INT16)pLVPSA_Inst->DownSamplingCount);
-
- while (ii > 0)
- {
- /* Apply post gain */
- X0 = ((*pInSamps) * pLVPSA_Inst->pPostGains[BandIndex]) >> (LVPSA_GAINSHIFT-1); /* - 1 to compensate scaling in process function*/
- pInSamps = pInSamps + DownSamplingFactor;
-
- /* Saturate and take absolute value */
- if(X0 < 0)
- X0 = -X0;
- if (X0 > 0x7FFF)
- Xg0 = 0x7FFF;
- else
- Xg0 = (LVM_INT16)(X0);
-
-
- /* Quasi peak filter calculation */
- D0 = (LVM_INT16)(Xg0 - V0);
-
- temp2 = (LVM_INT32)D0;
- MUL32x32INTO32(temp2,Kp,accu,31);
-
- D0 = (LVM_INT16)(D0>>1);
- if (D0 < 0){
- D0 = (LVM_INT16)(-D0);
- }
-
- temp2 = (LVM_INT32)D0;
- MUL32x32INTO32((LVM_INT32)D0,Km,temp,31);
- accu +=temp + Xg0;
-
- if (accu > 0x7FFF)
- accu = 0x7FFF;
- else if(accu < 0)
- accu = 0x0000;
-
- V0 = (LVM_INT16)accu;
-
- if(((pLVPSA_Inst->nSamplesBufferUpdate - BufferUpdateSamplesCount) < DownSamplingFactor))
- {
- LVPSA_QPD_WritePeak( pLVPSA_Inst,
- &pWrite,
- BandIndex,
- V0);
- BufferUpdateSamplesCount -= pLVPSA_Inst->nSamplesBufferUpdate;
- pLVPSA_Inst->LocalSamplesCount = (LVM_UINT16)(numSamples - ii);
- }
- BufferUpdateSamplesCount+=DownSamplingFactor;
-
- ii = (LVM_INT16)(ii-DownSamplingFactor);
-
- }
-
- /* Store last taps in memory */
- *pDelay = (LVM_INT32)(V0);
-
- /* If this is the last call to the function after last band processing,
- update the parameters. */
- if(BandIndex == (pLVPSA_Inst->nRelevantFilters-1))
- {
- pLVPSA_Inst->pSpectralDataBufferWritePointer = pWrite;
- /* Adjustment for 11025Hz input, 220,5 is normally
- the exact number of samples for 20ms.*/
- if((pLVPSA_Inst->pSpectralDataBufferWritePointer != pWrite)&&(pLVPSA_Inst->CurrentParams.Fs == LVM_FS_11025))
- {
- if(pLVPSA_Inst->nSamplesBufferUpdate == 220)
- {
- pLVPSA_Inst->nSamplesBufferUpdate = 221;
- }
- else
- {
- pLVPSA_Inst->nSamplesBufferUpdate = 220;
- }
- }
- pLVPSA_Inst->pSpectralDataBufferWritePointer = pWrite;
- pLVPSA_Inst->BufferUpdateSamplesCount = BufferUpdateSamplesCount;
- pLVPSA_Inst->DownSamplingCount = (LVM_UINT16)(-ii);
- }
-}
-
-/************************************************************************************/
-/* */
-/* FUNCTION: LVPSA_QPD_WritePeak */
-/* */
-/* DESCRIPTION: */
-/* Write a level value in the spectrum data buffer in the corresponding band. */
-/* */
-/* PARAMETERS: */
-/* pLVPSA_Inst Pointer to the LVPSA instance */
-/* ppWrite Pointer to pointer to the buffer */
-/* CallNumber Number of the band the value should be written in */
-/* Value Value to write in the spectrum data buffer */
-/* */
-/* RETURNS: void */
-/* */
-/************************************************************************************/
-void LVPSA_QPD_WritePeak( pLVPSA_InstancePr_t pLVPSA_Inst,
- LVM_UINT8 **ppWrite,
- LVM_INT16 BandIndex,
- LVM_INT16 Value )
-{
- LVM_UINT8 *pWrite = *ppWrite;
-
-
- /* Write the value and update the write pointer */
- *(pWrite + BandIndex) = (LVM_UINT8)(Value>>7);
- pWrite += pLVPSA_Inst->nBands;
- if (pWrite == (pLVPSA_Inst->pSpectralDataBufferStart + pLVPSA_Inst->nBands * pLVPSA_Inst->SpectralDataBufferLength))
- {
- pWrite = pLVPSA_Inst->pSpectralDataBufferStart;
- }
-
- *ppWrite = pWrite;
-
-}
-
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