Signal Conversion Functions

Functions that provide conversion and threshold operations.

Signal Convert

Convert

The set of conversion operations available in the library

Convert

Routines for converting the sample-data type of signals.

Supported data types include NPP_8U, NPP_8S, NPP_16U, NPP_16S, NPP_32U, NPP_32S, NPP_64S, NPP_32F, NPP_64F.

param eSrcType: source signal_data_type.
param eDstType: destination signal_data_type.
param pSrc: Source Signal Pointer.
param nLength: Signal Length.
param pDst: Destination Signal Pointer.
param eRoundMode: Rounding Mode Parameter.
param nScaleFactor: Integer Result Scaling, 0 for no scaling.
param nppStreamCtx: Application Managed Stream Context.

return: Signal Data Related Error Codes, Length Related Error Codes.

NppStatus nppsConvert_Up_Ctx(NppDataType eSrcType, NppDataType eDstType, const void *pSrc, void *pDst, int nLength, NppStreamContext nppStreamCtx): Convert Up.

NppStatus nppsConvert_16s32f_Sfs_Ctx(const Npp16s *pSrc, Npp32f *pDst, int nLength, int nScaleFactor, NppStreamContext nppStreamCtx): Convert 16s32f Sfs.

NppStatus nppsConvert_16s64f_Sfs_Ctx(const Npp16s *pSrc, Npp64f *pDst, int nLength, int nScaleFactor, NppStreamContext nppStreamCtx): Convert 16s64f Sfs.

NppStatus nppsConvert_32s64f_Sfs_Ctx(const Npp32s *pSrc, Npp64f *pDst, int nLength, int nScaleFactor, NppStreamContext nppStreamCtx): Convert 32s64f Sfs.

NppStatus nppsConvert_Down_Ctx(NppDataType eSrcType, NppDataType eDstType, const void *pSrc, void *pDst, int nLength, NppStreamContext nppStreamCtx): Convert Down.

NppStatus nppsConvert_Down_Sfs_Ctx(NppDataType eSrcType, NppDataType eDstType, const void *pSrc, void *pDst, NppRoundMode eRoundMode, int nScaleFactor, int nLength, NppStreamContext nppStreamCtx): Convert Down Sfs.

Signal Threshold

Threshold

The set of threshold operations available in the library.

Threshold Functions

Performs the threshold operation on the samples of a signal by limiting the sample values by a specified constant value.

NppStatus nppsThreshold_Ctx(NppDataType eSrcDstType, const void *pSrc, void *pDst, int nLength, const void *pLevel, NppCmpOp nRelOp, NppStreamContext nppStreamCtx)

Signal threshold with constant level.

Supported data types include NPP_8U, NPP_8S, NPP_16U, NPP_16S, NPP_32F, NPP_64F.

Parameters

eSrcDstType – signal_data_type.
pSrc – Source Signal Pointer.
pDst – Destination Signal Pointer.
nLength – Signal Length.
pLevel – Host memory pointer to constant threshold eSrcDstType value to be used to limit each signal sample
nRelOp – NppCmpOp type of thresholding operation (NPP_CMP_LESS or NPP_CMP_GREATER only).
nppStreamCtx – Application Managed Stream Context.

Returns

Signal Data Related Error Codes, Length Related Error Codes.

NppStatus nppsThreshold_I_Ctx(NppDataType eSrcDstType, void *pSrcDst, int nLength, const void *pLevel, NppCmpOp nRelOp, NppStreamContext nppStreamCtx)

In place signed short signal threshold with constant level.

Supported data types include NPP_8U, NPP_8S, NPP_16U, NPP_16S, NPP_32F, NPP_64F.

Parameters

eSrcDstType – signal_data_type.
pSrcDst – In-Place Signal Pointer.
nLength – Signal Length.
pLevel – Host memory pointer to constant threshold eSrcDstType value to be used to limit each signal sample
nRelOp – NppCmpOp type of thresholding operation (NPP_CMP_LESS or NPP_CMP_GREATER only).
nppStreamCtx – Application Managed Stream Context.

Returns

Signal Data Related Error Codes, Length Related Error Codes.

NppStatus nppsThreshold_LT_Ctx(NppDataType eSrcDstType, const void *pSrc, void *pDst, int nLength, const void *pLevel, NppStreamContext nppStreamCtx)

Signal NPP_CMP_LESS threshold with constant level.

Supported data types include NPP_8U, NPP_8S, NPP_16U, NPP_16S, NPP_32F, NPP_64F.

Parameters

eSrcDstType – signal_data_type.
pSrc – Source Signal Pointer.
pDst – Destination Signal Pointer.
nLength – Signal Length.
pLevel – Host memory pointer to constant threshold eSrcDstType value to be used to limit each signal sample
nppStreamCtx – Application Managed Stream Context.

Returns

Signal Data Related Error Codes, Length Related Error Codes.

NppStatus nppsThreshold_LT_I_Ctx(NppDataType eSrcDstType, void *pSrcDst, int nLength, const void *pLevel, NppStreamContext nppStreamCtx)

In place signed short signal NPP_CMP_LESS threshold with constant level.

Supported data types include NPP_8U, NPP_8S, NPP_16U, NPP_16S, NPP_32F, NPP_64F.

Parameters

eSrcDstType – signal_data_type.
pSrcDst – In-Place Signal Pointer.
nLength – Signal Length.
pLevel – Host memory pointer to constant threshold eSrcDstType value to be used to limit each signal sample
nppStreamCtx – Application Managed Stream Context.

Returns

Signal Data Related Error Codes, Length Related Error Codes.

NppStatus nppsThreshold_GT_Ctx(NppDataType eSrcDstType, const void *pSrc, void *pDst, int nLength, const void *pLevel, NppStreamContext nppStreamCtx)

Signal NPP_CMP_GREATER threshold with constant level.

Supported data types include NPP_8U, NPP_8S, NPP_16U, NPP_16S, NPP_32F, NPP_64F.

Parameters

eSrcDstType – signal_data_type.
pSrc – Source Signal Pointer.
pDst – Destination Signal Pointer.
nLength – Signal Length.
pLevel – Host memory pointer to constant threshold eSrcDstType value to be used to limit each signal sample
nppStreamCtx – Application Managed Stream Context.

Returns

Signal Data Related Error Codes, Length Related Error Codes.

NppStatus nppsThreshold_GT_I_Ctx(NppDataType eSrcDstType, void *pSrcDst, int nLength, const void *pLevel, NppStreamContext nppStreamCtx)

In place signed short signal NPP_CMP_GREATER threshold with constant level.

Supported data types include NPP_8U, NPP_8S, NPP_16U, NPP_16S, NPP_32F, NPP_64F.

Parameters

eSrcDstType – signal_data_type.
pSrcDst – In-Place Signal Pointer.
nLength – Signal Length.
pLevel – Host memory pointer to constant threshold eSrcDstType value to be used to limit each signal sample
nppStreamCtx – Application Managed Stream Context.

Returns

Signal Data Related Error Codes, Length Related Error Codes.

NppStatus nppsThreshold_LTVal_Ctx(NppDataType eSrcDstType, const void *pSrc, void *pDst, int nLength, const void *pLevel, const void *pValue, NppStreamContext nppStreamCtx)

Signal NPP_CMP_LESS threshold with constant level.

Supported data types include NPP_8U, NPP_8S, NPP_16U, NPP_16S, NPP_32F, NPP_64F.

Parameters

eSrcDstType – signal_data_type.
pSrc – Source Signal Pointer.
pDst – Destination Signal Pointer.
nLength – Signal Length.
pLevel – Host memory pointer to constant threshold eSrcDstType value to be used to limit each signal sample
pValue – Host memory pointer to constant eSrcDstType value to replace source value when threshold test is true.
nppStreamCtx – Application Managed Stream Context.

Returns

Signal Data Related Error Codes, Length Related Error Codes.

NppStatus nppsThreshold_LTVal_I_Ctx(NppDataType eSrcDstType, void *pSrcDst, int nLength, const void *pLevel, const void *pValue, NppStreamContext nppStreamCtx)

In place signed short signal NPP_CMP_LESS threshold with constant level.

Supported data types include NPP_8U, NPP_8S, NPP_16U, NPP_16S, NPP_32F, NPP_64F.

Parameters

eSrcDstType – signal_data_type.
pSrcDst – In-Place Signal Pointer.
nLength – Signal Length.
pLevel – Host memory pointer to constant threshold eSrcDstType value to be used to limit each signal sample
pValue – Host memory pointer to constant eSrcDstType value to replace source value when threshold test is true.
nppStreamCtx – Application Managed Stream Context.

Returns

Signal Data Related Error Codes, Length Related Error Codes.

NppStatus nppsThreshold_GTVal_Ctx(NppDataType eSrcDstType, const void *pSrc, void *pDst, int nLength, const void *pLevel, const void *pValue, NppStreamContext nppStreamCtx)

Signal NPP_CMP_GREATER threshold with constant level.

Supported data types include NPP_8U, NPP_8S, NPP_16U, NPP_16S, NPP_32F, NPP_64F.

Parameters

eSrcDstType – signal_data_type.
pSrc – Source Signal Pointer.
pDst – Destination Signal Pointer.
nLength – Signal Length.
pLevel – Host memory pointer to constant threshold eSrcDstType value to be used to limit each signal sample
pValue – Host memory pointer to constant eSrcDstType value to replace source value when threshold test is true.
nppStreamCtx – Application Managed Stream Context.

Returns

Signal Data Related Error Codes, Length Related Error Codes.

NppStatus nppsThreshold_GTVal_I_Ctx(NppDataType eSrcDstType, void *pSrcDst, int nLength, const void *pLevel, const void *pValue, NppStreamContext nppStreamCtx)

In place floating point signal NPP_CMP_GREATER threshold with constant level.

Supported data types include NPP_8U, NPP_8S, NPP_16U, NPP_16S, NPP_32F, NPP_64F.

Parameters

eSrcDstType – signal_data_type.
pSrcDst – In-Place Signal Pointer.
nLength – Signal Length.
pLevel – Host memory pointer to constant threshold eSrcDstType value to be used to limit each signal sample
pValue – Host memory pointer to constant eSrcDstType value to replace source value when threshold test is true.
nppStreamCtx – Application Managed Stream Context.

Returns

Signal Data Related Error Codes, Length Related Error Codes.