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Diffstat (limited to 'media/libeffects/lvm/lib/Bass/src/LVDBE_Process.c')
-rwxr-xr-xmedia/libeffects/lvm/lib/Bass/src/LVDBE_Process.c98
1 files changed, 54 insertions, 44 deletions
diff --git a/media/libeffects/lvm/lib/Bass/src/LVDBE_Process.c b/media/libeffects/lvm/lib/Bass/src/LVDBE_Process.c
index 35eec07..04032c0 100755
--- a/media/libeffects/lvm/lib/Bass/src/LVDBE_Process.c
+++ b/media/libeffects/lvm/lib/Bass/src/LVDBE_Process.c
@@ -17,9 +17,9 @@
/****************************************************************************************
- $Author: nxp007753 $
- $Revision: 1081 $
- $Date: 2010-07-05 11:48:44 +0200 (Mon, 05 Jul 2010) $
+ $Author: beq06068 $
+ $Revision: 1400 $
+ $Date: 2010-08-03 09:22:37 +0200 (Tue, 03 Aug 2010) $
*****************************************************************************************/
@@ -89,10 +89,16 @@ LVDBE_ReturnStatus_en LVDBE_Process(LVDBE_Handle_t hInstance,
LVDBE_Instance_t *pInstance =(LVDBE_Instance_t *)hInstance;
LVM_INT32 *pScratch = (LVM_INT32 *)pInstance->MemoryTable.Region[LVDBE_MEMREGION_SCRATCH].pBaseAddress;
- LVM_INT32 *pMono = (LVM_INT32 *)pOutData;
+ LVM_INT32 *pMono;
LVM_INT16 *pInput = (LVM_INT16 *)pInData;
+ /* Scratch for Volume Control starts at offset of 2*NumSamples short values from pScratch */
+ LVM_INT16 *pScratchVol = (LVM_INT16 *)(&pScratch[NumSamples]);
+
+ /* Scratch for Mono path starts at offset of 2*NumSamples 32-bit values from pScratch */
+ pMono = &pScratch[2*NumSamples];
+
/*
* Check the number of samples is not too large
*/
@@ -104,18 +110,20 @@ LVDBE_ReturnStatus_en LVDBE_Process(LVDBE_Handle_t hInstance,
/*
* Check if the algorithm is enabled
*/
- if ((pInstance->Params.OperatingMode != LVDBE_OFF) ||
- (pInstance->bTransitionOnToOff == LVM_TRUE))
+ /* DBE path is processed when DBE is ON or during On/Off transitions */
+ if ((pInstance->Params.OperatingMode == LVDBE_ON)||
+ (LVC_Mixer_GetCurrent(&pInstance->pData->BypassMixer.MixerStream[0])
+ !=LVC_Mixer_GetTarget(&pInstance->pData->BypassMixer.MixerStream[0])))
{
/*
* Convert 16-bit samples to 32-bit and scale
* (For a 16-bit implementation apply headroom loss here)
*/
- Int16LShiftToInt32_16x32(pInput, /* Source 16-bit data */
- pScratch, /* Destination 32-bit data */
- (LVM_INT16)(2*NumSamples), /* Left and right */
- LVDBE_SCALESHIFT); /* Shift scale */
+ Int16LShiftToInt32_16x32(pInput, /* Source 16-bit data */
+ pScratch, /* Dest. 32-bit data */
+ (LVM_INT16)(2*NumSamples), /* Left and right */
+ LVDBE_SCALESHIFT); /* Shift scale */
/*
@@ -123,61 +131,54 @@ LVDBE_ReturnStatus_en LVDBE_Process(LVDBE_Handle_t hInstance,
*/
if (pInstance->Params.HPFSelect == LVDBE_HPF_ON)
{
- BQ_2I_D32F32C30_TRC_WRA_01(&pInstance->pCoef->HPFInstance, /* Filter instance */
- (LVM_INT32 *)pScratch, /* Source */
- (LVM_INT32 *)pScratch, /* Destination */
- (LVM_INT16)NumSamples); /* Number of samples */
+ BQ_2I_D32F32C30_TRC_WRA_01(&pInstance->pCoef->HPFInstance,/* Filter instance */
+ (LVM_INT32 *)pScratch, /* Source */
+ (LVM_INT32 *)pScratch, /* Destination */
+ (LVM_INT16)NumSamples); /* Number of samples */
}
/*
* Create the mono stream
*/
- From2iToMono_32(pScratch, /* Stereo source */
- pMono, /* Mono destination */
- (LVM_INT16)NumSamples); /* Number of samples */
+ From2iToMono_32(pScratch, /* Stereo source */
+ pMono, /* Mono destination */
+ (LVM_INT16)NumSamples); /* Number of samples */
/*
* Apply the band pass filter
*/
- BP_1I_D32F32C30_TRC_WRA_02(&pInstance->pCoef->BPFInstance, /* Filter instance */
- (LVM_INT32 *)pMono, /* Source */
- (LVM_INT32 *)pMono, /* Destination */
- (LVM_INT16)NumSamples); /* Number of samples */
+ BP_1I_D32F32C30_TRC_WRA_02(&pInstance->pCoef->BPFInstance, /* Filter instance */
+ (LVM_INT32 *)pMono, /* Source */
+ (LVM_INT32 *)pMono, /* Destination */
+ (LVM_INT16)NumSamples); /* Number of samples */
/*
* Apply the AGC and mix
*/
- AGC_MIX_VOL_2St1Mon_D32_WRA(&pInstance->pData->AGCInstance, /* Instance pointer */
- pScratch, /* Stereo source */
- pMono, /* Mono band pass source */
- pScratch, /* Stereo destination */
- NumSamples); /* Number of samples */
-
- if(pInstance->bTransitionOnToOff == LVM_TRUE)
- {
- if ((pInstance->pData->AGCInstance.AGC_Gain == pInstance->pData->AGCInstance.AGC_Target)&&
- (pInstance->pData->AGCInstance.AGC_Gain == 0))
- {
- pInstance->bTransitionOnToOff = LVM_FALSE;
- }
- }
-
-
+ AGC_MIX_VOL_2St1Mon_D32_WRA(&pInstance->pData->AGCInstance, /* Instance pointer */
+ pScratch, /* Stereo source */
+ pMono, /* Mono band pass source */
+ pScratch, /* Stereo destination */
+ NumSamples); /* Number of samples */
/*
* Convert 32-bit samples to 16-bit and saturate
* (Not required for 16-bit implemenations)
*/
- Int32RShiftToInt16_Sat_32x16(pScratch, /* Source 32-bit data */
- pOutData, /* Destination 16-bit data */
- (LVM_INT16)(2*NumSamples), /* Left and right */
- LVDBE_SCALESHIFT); /* Shift scale */
+ Int32RShiftToInt16_Sat_32x16(pScratch, /* Source 32-bit data */
+ (LVM_INT16 *)pScratch, /* Dest. 16-bit data */
+ (LVM_INT16)(2*NumSamples), /* Left and right */
+ LVDBE_SCALESHIFT); /* Shift scale */
}
- else
+
+ /* Bypass Volume path is processed when DBE is OFF or during On/Off transitions */
+ if ((pInstance->Params.OperatingMode == LVDBE_OFF)||
+ (LVC_Mixer_GetCurrent(&pInstance->pData->BypassMixer.MixerStream[1])
+ !=LVC_Mixer_GetTarget(&pInstance->pData->BypassMixer.MixerStream[1])))
{
/*
@@ -186,11 +187,20 @@ LVDBE_ReturnStatus_en LVDBE_Process(LVDBE_Handle_t hInstance,
*/
LVC_MixSoft_1St_D16C31_SAT(&pInstance->pData->BypassVolume,
pInData,
- pOutData,
- (LVM_INT16)(2*NumSamples)); /* Left and right */
+ pScratchVol,
+ (LVM_INT16)(2*NumSamples)); /* Left and right */
}
+ /*
+ * Mix DBE processed path and bypass volume path
+ */
+ LVC_MixSoft_2St_D16C31_SAT(&pInstance->pData->BypassMixer,
+ (LVM_INT16 *) pScratch,
+ pScratchVol,
+ pOutData,
+ (LVM_INT16)(2*NumSamples));
+
return(LVDBE_SUCCESS);
}
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