high

mlib_SignalLimit(3MLIB) 				    mediaLib Library Functions					   mlib_SignalLimit(3MLIB)

NAME

       mlib_SignalLimit,   mlib_SignalLimit_S16_S16,   mlib_SignalLimit_S16S_S16S,   mlib_SignalLimit_S16,   mlib_SignalLimit_S16S,   mlib_Signal-
       Limit_F32_F32, mlib_SignalLimit_F32S_F32S, mlib_SignalLimit_F32, mlib_SignalLimit_F32S - signal hard limiting

SYNOPSIS

       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       mlib_status mlib_SignalLimit_S16_S16(mlib_s16 *dst,
	    const mlib_s16 *src, const mlib_s16 *low,
	    const mlib_s16 *high, mlib_s32 n);

       mlib_status mlib_SignalLimit_S16S_S16S(mlib_s16 *dst,
	    const mlib_s16 *src, const mlib_s16 *low,
	    const mlib_s16 *high, mlib_s32 n);

       mlib_status mlib_SignalLimit_S16(mlib_s16 *srcdst,
	    const mlib_s16 *low, const mlib_s16 *high, mlib_s32 n);

       mlib_status mlib_SignalLimit_S16S(mlib_s16 *srcdst,
	    const mlib_s16 *low, const mlib_s16 *high, mlib_s32 n);

       mlib_status mlib_SignalLimit_F32_F32(mlib_f32 *dst,
	    const mlib_f32 *src, const mlib_f32 *low,
	    const mlib_f32 *high, mlib_s32 n);

       mlib_status mlib_SignalLimit_F32S_F32S(mlib_f32 *dst,
	    const mlib_f32 *src, const mlib_f32 *low,
	    const mlib_f32 *high, mlib_s32 n);

       mlib_status mlib_SignalLimit_F32(mlib_f32 *srcdst,
	    const mlib_f32 *low, const mlib_f32 *high, mlib_s32 n);

       mlib_status mlib_SignalLimit_F32S(mlib_f32 *srcdst,
	    const mlib_f32 *low, const mlib_f32 *high, mlib_s32 n);

DESCRIPTION

       Each of these functions performs hard limiting.

       For monaural signals, the following equation is used:

	 dst[i] = low[0]	   if src[i] < low[0]
	 dst[i] = src[i]	   if low[0] <= src[i] < high[0]
	 dst[i] = high[0]	   if src[i] >= high[0]

       where i = 0, 1, ..., (n - 1).

       For stereo signals, the following equation is used:

	 dst[2*i] = low[0]	   if src[2*i] < low[0]
	 dst[2*i] = src[2*i]	   if low[0] <= src[2*i] < high[0]
	 dst[2*i] = high[0]	   if src[2*i] >= high[0]

	 dst[2*i+1] = low[1]	   if src[2*i+1] < low[1]
	 dst[2*i+1] = src[2*i+1]   if low[1] <= src[2*i+1] < high[1]
	 dst[2*i+1] = high[1]	   if src[2*i+1] >= high[1]

       where i = 0, 1, ..., (n - 1).

PARAMETERS

       Each of the functions takes some of the following arguments:

       dst	 Destination signal array.

       src	 Source signal array.

       srcdst	 Source and destination signal array.

       low	 Lower input limit. In the stereo version, low[0] contains the lower limit for channel 0, and low[1] contains the lower limit  for
		 channel 1.

       high	 Upper	input  limit.  In the stereo version. high[0] contains the upper limit for channel 0, and high[1] contains the upper limit
		 for channel 1.

       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

       attributes(5)

SunOS 5.11							    2 Mar 2007						   mlib_SignalLimit(3MLIB)