First submission of audio effect library from NXP software.

This CL contains the first open sourceable version of the audio effect library from NXP software.
The effects implemented are:
- Bass boost
- Virtualizer (stereo widening)
- Equalizer
- Spectrum analyzer

Source file for the effect engines are located under libeffects/lvm/lib
The wrapper implementing the interface with the audio effect framework in under libeffects/lvm/wrapper

The code of other effect libraries has also been reorganized fo clarity:
- the effect factory is now under libeffects/factory
- the test equalizer and reverb effects are under libeffect/testlibs
- the visualizer is under libeffects/virtualizer

Change-Id: I8d91e2181f81b89f8fc0c1e1e6bf552c5809b2eb

1 files changed, 177 insertions, 0 deletions

diff --git a/media/libeffects/lvm/lib/SpectrumAnalyzer/src/LVPSA_Memory.c b/media/libeffects/lvm/lib/SpectrumAnalyzer/src/LVPSA_Memory.c
new file mode 100755
index 0000000..059cb4e
--- /dev/null
+++ b/media/libeffects/lvm/lib/SpectrumAnalyzer/src/LVPSA_Memory.c
@@ -0,0 +1,177 @@
+/*
+ * 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.
+ */
+
+/************************************************************************/
+/*                                                                      */
+/*     Project::   PSA_01_ARMC_01                                       */
+/*     $Author: beq07716 $*/
+/*     $Revision: 1006 $*/
+/*     $Date: 2010-06-28 14:01:47 +0200 (Mon, 28 Jun 2010) $*/
+/*                                                                      */
+/************************************************************************/
+#include    "LVPSA.h"
+#include    "LVPSA_Private.h"
+#include    "InstAlloc.h"
+
+/****************************************************************************************/
+/*                                                                                      */
+/* FUNCTION:                LVEQNB_Memory                                               */
+/*                                                                                      */
+/* DESCRIPTION:                                                                         */
+/*  This function is used for memory allocation and free. It can be called in           */
+/*  two ways:                                                                           */
+/*                                                                                      */
+/*      hInstance = NULL         Returns the memory requirements                        */
+/*      hInstance = Instance handle     Returns the memory requirements and             */
+/*                                      allocated base addresses for the instance       */
+/*                                                                                      */
+/*  When this function is called for memory allocation (hInstance=NULL) the memory      */
+/*  base address pointers are NULL on return.                                           */
+/*                                                                                      */
+/*  When the function is called for free (hInstance = Instance Handle) the memory       */
+/*  table returns the allocated memory and base addresses used during initialisation.   */
+/*                                                                                      */
+/* PARAMETERS:                                                                          */
+/*  hInstance               Instance Handle                                             */
+/*  pMemoryTable            Pointer to an empty memory definition table                 */
+/*  InitParams              Pointer to the instance init parameters                     */
+/*                                                                                      */
+/* RETURNS:                                                                             */
+/*  LVPSA_OK            Succeeds                                                        */
+/*  otherwise           Error due to bad parameters                                     */
+/*                                                                                      */
+/****************************************************************************************/
+LVPSA_RETURN LVPSA_Memory            ( pLVPSA_Handle_t             hInstance,
+                                       LVPSA_MemTab_t             *pMemoryTable,
+                                       LVPSA_InitParams_t         *pInitParams    )
+{
+    LVM_UINT32          ii;
+    LVM_UINT32          BufferLength;
+    INST_ALLOC          Instance;
+    INST_ALLOC          Scratch;
+    INST_ALLOC          Data;
+    INST_ALLOC          Coef;
+    LVPSA_InstancePr_t *pLVPSA_Inst = (LVPSA_InstancePr_t*)hInstance;
+
+
+    InstAlloc_Init( &Instance   , LVM_NULL);
+    InstAlloc_Init( &Scratch    , LVM_NULL);
+    InstAlloc_Init( &Data       , LVM_NULL);
+    InstAlloc_Init( &Coef       , LVM_NULL);
+
+
+    if((pMemoryTable == LVM_NULL) || (pInitParams == LVM_NULL))
+    {
+        return(LVPSA_ERROR_NULLADDRESS);
+    }
+
+
+    /*
+     * Fill in the memory table
+     */
+    if (hInstance == LVM_NULL)
+    {
+
+        /* Check init parameter */
+        if( (pInitParams->SpectralDataBufferDuration > LVPSA_MAXBUFFERDURATION)   ||
+            (pInitParams->SpectralDataBufferDuration == 0)                        ||
+            (pInitParams->MaxInputBlockSize > LVPSA_MAXINPUTBLOCKSIZE)      ||
+            (pInitParams->MaxInputBlockSize == 0)                           ||
+            (pInitParams->nBands < LVPSA_NBANDSMIN)                         ||
+            (pInitParams->nBands > LVPSA_NBANDSMAX)                         ||
+            (pInitParams->pFiltersParams == 0))
+        {
+            return(LVPSA_ERROR_INVALIDPARAM);
+        }
+        for(ii = 0; ii < pInitParams->nBands; ii++)
+        {
+            if((pInitParams->pFiltersParams[ii].CenterFrequency > LVPSA_MAXCENTERFREQ) ||
+               (pInitParams->pFiltersParams[ii].PostGain        > LVPSA_MAXPOSTGAIN)   ||
+               (pInitParams->pFiltersParams[ii].PostGain        < LVPSA_MINPOSTGAIN)   ||
+               (pInitParams->pFiltersParams[ii].QFactor < LVPSA_MINQFACTOR)            ||
+               (pInitParams->pFiltersParams[ii].QFactor > LVPSA_MAXQFACTOR))
+               {
+                    return(LVPSA_ERROR_INVALIDPARAM);
+               }
+        }
+
+        /*
+         * Instance memory
+         */
+
+        InstAlloc_AddMember( &Instance, sizeof(LVPSA_InstancePr_t) );
+        InstAlloc_AddMember( &Instance, pInitParams->nBands * sizeof(LVM_UINT16) );
+        InstAlloc_AddMember( &Instance, pInitParams->nBands * sizeof(LVPSA_FilterParam_t) );
+
+        {
+            /* for avoiding QAC warnings as MUL32x32INTO32 works on LVM_INT32 only*/
+            LVM_INT32 SDBD=(LVM_INT32)pInitParams->SpectralDataBufferDuration;
+            LVM_INT32 IRTI=(LVM_INT32)LVPSA_InternalRefreshTimeInv;
+            LVM_INT32 BL;
+
+            MUL32x32INTO32(SDBD,IRTI,BL,LVPSA_InternalRefreshTimeShift)
+            BufferLength=(LVM_UINT32)BL;
+        }
+
+
+        if((BufferLength * LVPSA_InternalRefreshTime) != pInitParams->SpectralDataBufferDuration)
+        {
+            BufferLength++;
+        }
+        InstAlloc_AddMember( &Instance, pInitParams->nBands * BufferLength * sizeof(LVM_UINT8) );
+        InstAlloc_AddMember( &Instance, pInitParams->nBands * sizeof(LVM_UINT8) );
+        InstAlloc_AddMember( &Instance, pInitParams->nBands * sizeof(LVPSA_BPFilterPrecision_en) );
+        pMemoryTable->Region[LVPSA_MEMREGION_INSTANCE].Size         = InstAlloc_GetTotal(&Instance);
+        pMemoryTable->Region[LVPSA_MEMREGION_INSTANCE].Type         = LVPSA_PERSISTENT;
+        pMemoryTable->Region[LVPSA_MEMREGION_INSTANCE].pBaseAddress = LVM_NULL;
+
+        /*
+         * Scratch memory
+         */
+        InstAlloc_AddMember( &Scratch, 2 * pInitParams->MaxInputBlockSize * sizeof(LVM_INT16) );
+        pMemoryTable->Region[LVPSA_MEMREGION_SCRATCH].Size         = InstAlloc_GetTotal(&Scratch);
+        pMemoryTable->Region[LVPSA_MEMREGION_SCRATCH].Type         = LVPSA_SCRATCH;
+        pMemoryTable->Region[LVPSA_MEMREGION_SCRATCH].pBaseAddress = LVM_NULL;
+
+        /*
+         * Persistent coefficients memory
+         */
+        InstAlloc_AddMember( &Coef, pInitParams->nBands * sizeof(Biquad_Instance_t) );
+        InstAlloc_AddMember( &Coef, pInitParams->nBands * sizeof(QPD_State_t) );
+        pMemoryTable->Region[LVPSA_MEMREGION_PERSISTENT_COEF].Size         = InstAlloc_GetTotal(&Coef);
+        pMemoryTable->Region[LVPSA_MEMREGION_PERSISTENT_COEF].Type         = LVPSA_PERSISTENT_COEF;
+        pMemoryTable->Region[LVPSA_MEMREGION_PERSISTENT_COEF].pBaseAddress = LVM_NULL;
+
+        /*
+         * Persistent data memory
+         */
+        InstAlloc_AddMember( &Data, pInitParams->nBands * sizeof(Biquad_1I_Order2_Taps_t) );
+        InstAlloc_AddMember( &Data, pInitParams->nBands * sizeof(QPD_Taps_t) );
+        pMemoryTable->Region[LVPSA_MEMREGION_PERSISTENT_DATA].Size         = InstAlloc_GetTotal(&Data);
+        pMemoryTable->Region[LVPSA_MEMREGION_PERSISTENT_DATA].Type         = LVPSA_PERSISTENT_DATA;
+        pMemoryTable->Region[LVPSA_MEMREGION_PERSISTENT_DATA].pBaseAddress = LVM_NULL;
+
+    }
+    else
+    {
+        /* Read back memory allocation table */
+        *pMemoryTable = pLVPSA_Inst->MemoryTable;
+    }
+
+    return(LVPSA_OK);
+}
+