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OpenSolaris 2009.06 - man page for mlib_signalemphasize_f32s_f32s (opensolaris section 3mlib)

mlib_SignalEmphasize_S16_S16_Sat(3MLIB) 		    mediaLib Library Functions			   mlib_SignalEmphasize_S16_S16_Sat(3MLIB)

NAME
mlib_SignalEmphasize_S16_S16_Sat, mlib_SignalEmphasize_S16S_S16S_Sat, mlib_SignalEmphasize_F32_F32, mlib_SignalEmphasize_F32S_F32S - signal pre-emphasizing
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_SignalEmphasize_S16_S16_Sat(mlib_s16 *dst, const mlib_s16 *src, void *filter, mlib_s32 n); mlib_status mlib_SignalEmphasize_S16S_S16S_Sat(mlib_s16 *dst, const mlib_s16 *src, void *filter, mlib_s32 n); mlib_status mlib_SignalEmphasize_F32_F32(mlib_f32 *dst, const mlib_f32 *src, void *filter, mlib_s32 n); mlib_status mlib_SignalEmphasize_F32S_F32S(mlib_f32 *dst, const mlib_f32 *src, void *filter, mlib_s32 n);
DESCRIPTION
Each of these functions applies the preemphasizer to one signal packet and updates the filter states. For monaural signals, the following equation is used: dst[i] = src[i] - alpha*src[i - 1] where i = 0, 1, ..., (n - 1); src[-1] = 0. For stereo signals, the following equation is used: dst[2*i] = src[2*i] - alpha*src[2*(i - 1)] dst[2*i + 1] = src[2*i + 1] - alpha*src[2*(i - 1) + 1] where i = 0, 1, ..., (n - 1); src[-2] = src[-1] = 0.
PARAMETERS
Each of the functions takes the following arguments: dst Destination signal array. src Source signal array. filter Internal filter structure. n Number of samples in the source signal array.
RETURN VALUES
Each of the functions returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Committed | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+
SEE ALSO
mlib_SignalEmphasizeFree_S16_S16(3MLIB), mlib_SignalEmphasizeInit_S16_S16(3MLIB), attributes(5) SunOS 5.11 2 Mar 2007 mlib_SignalEmphasize_S16_S16_Sat(3MLIB)

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