03-30-2005
Per, thanks very very much for your help. I think this will save me from having to write a COBOL routine. One more question: do you know of a way to put out "low-values" or "high-values" through a script. Basically we want our summary record to look like this:
high values positions 1-5
# of records in the file positions 6-10
Totaling the records, I can handle. LOL. Just need to know if there is a way to "write" low values or hgih values within a shell script. Thanks.
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LEARN ABOUT OPENSOLARIS
mlib_signallimit_f32_f32
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)