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-rw-r--r--TAO/orbsvcs/tests/AVStreams/mpeg/source/mpeg_shared/filters.cpp370
1 files changed, 0 insertions, 370 deletions
diff --git a/TAO/orbsvcs/tests/AVStreams/mpeg/source/mpeg_shared/filters.cpp b/TAO/orbsvcs/tests/AVStreams/mpeg/source/mpeg_shared/filters.cpp
deleted file mode 100644
index 7458bb9ea02..00000000000
--- a/TAO/orbsvcs/tests/AVStreams/mpeg/source/mpeg_shared/filters.cpp
+++ /dev/null
@@ -1,370 +0,0 @@
-/* $Id$ */
-
-/* Copyright (c) 1995 Oregon Graduate Institute of Science and Technology
- * P.O.Box 91000-1000, Portland, OR 97291, USA;
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of O.G.I. not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. O.G.I. makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- *
- * O.G.I. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
- * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
- * O.G.I. BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
- * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
- * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Author: Shanwei Cen
- * Department of Computer Science and Engineering
- * email: scen@cse.ogi.edu
- */
-#include <stdio.h>
-#include <limits.h> /* INT_MIN, INT_MAX are defined here */
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-/*
-#include <stdlib.h>
-#include <sys/time.h>
-#include <sys/types.h>
-*/
-#include "filters.h"
-#include "ace/OS.h"
-
-ACE_RCSID(mpeg_shared, filters, "$Id$")
-
-#define BUFSIZE 256
-#define maxval(a,b) ((a) > (b) ? (a) : (b))
-#define minval(a,b) ((a) < (b) ? (a) : (b))
-
-static float FLOAT_MIN = (float)INT_MIN;
-static float FLOAT_MAX = (float)INT_MAX;
-
-AverageFilter * NewAverageFilter(int nsamples)
-{
- AverageFilter * f;
- f = (AverageFilter *) ACE_OS::malloc(sizeof(*f));
- if (f == NULL)
- return NULL;
- f->type = FILTER_AVERAGE;
- f->nsamples = nsamples;
- f->buf = (double *)ACE_OS::malloc(nsamples * sizeof(double));
- if (f->buf == NULL) {
- ACE_OS::free(f);
- return NULL;
- }
- f->count = 0;
- f->ptr = 0;
- f->sum = 0;
- return f;
-}
-
-AverageFilter * ResetAverageFilter(AverageFilter *f, int nsamples)
-{
- if (f->nsamples != nsamples) {
- ACE_OS::free(f->buf);
- f->nsamples = nsamples;
- f->buf = (double *)ACE_OS::malloc(nsamples * sizeof(double));
- if (f->buf == NULL) {
- ACE_OS::free(f);
- return NULL;
- }
- }
- f->count = 0;
- f->ptr = 0;
- f->sum = 0;
- return f;
-}
-
-void FreeAverageFilter(AverageFilter * f)
-{
- ACE_OS::free(f->buf);
- ACE_OS::free(f);
-}
-
-double DoAverageFilter(AverageFilter *f, double value)
-{
- int offset;
- double oldval = f->buf[f->ptr];
- f->buf[f->ptr] = value;
- f->ptr = (f->ptr + 1) % f->nsamples;
- f->sum += value;
- if (f->count >= f->nsamples) {
- f->sum -= oldval;
- }
- else {
- f->count ++;
- }
- return (double)(f->sum) / (double)f->count;
-}
-
-
-LowPassFilter * NewLowPassFilter(double Rvalue)
-{
- LowPassFilter * f;
- f = (LowPassFilter *)ACE_OS::malloc(sizeof(*f));
- if (f == NULL) {
- return NULL;
- }
- if (Rvalue > 1.0) {
- Rvalue = 1.0;
- }
- else if (Rvalue < 0.0) {
- Rvalue = 0.0;
- }
- f->type = FILTER_LOWPASS;
- f->count = 0;
- f->maxcount = (int)(1.0 / maxval(Rvalue, 0.0001));
- f->R = Rvalue;
- f->result = FLOAT_MIN;
- return f;
-}
-
-LowPassFilter * ResetLowPassFilter(LowPassFilter * f, double Rvalue)
-{
- if (Rvalue > 1.0) {
- Rvalue = 1.0;
- }
- else if (Rvalue < 0.0) {
- Rvalue = 0.0;
- }
- f->count = 0;
- f->maxcount = (int)(1.0 / maxval(Rvalue, 0.0001));
- f->R = Rvalue;
- f->result = FLOAT_MIN;
- return f;
-}
-
-void FreeLowPassFilter(LowPassFilter * f)
-{
- ACE_OS::free(f);
-}
-
-double DoLowPassFilter(LowPassFilter * f, double value)
-{
- if (f->count <= f->maxcount) {
- if (!f->count) {
- f->count ++;
- return (f->result = value);
- }
- f->count ++;
- return (f->result = (1.0 - (1.0/(double)f->count)) * f->result +
- (1.0/(double)f->count) * value);
- }
- return (f->result = (1.0 - f->R) * f->result + f->R * value);
-}
-
-MedianFilter * NewMedianFilter(int nsamples)
-{
- int minv = 0, maxv = 1;
- MedianFilter * f;
- f = (MedianFilter *) ACE_OS::malloc(sizeof(*f));
- if (f == NULL)
- return NULL;
- f->type = FILTER_MEDIAN;
- f->nsamples = nsamples;
- f->max = maxval(maxv, minv);
- f->min = minval(maxv, minv);
- f->statsize = f->max - f->min + 1;
- f->buf = (int *)ACE_OS::malloc(nsamples * sizeof(int));
- if (f->buf == NULL) {
- ACE_OS::free(f);
- return NULL;
- }
- f->stat = (int *)ACE_OS::malloc(f->statsize * sizeof(int));
- if (f->stat == NULL) {
- ACE_OS::free(f->buf);
- ACE_OS::free(f);
- return NULL;
- }
- f->count = 0;
- f->ptr = 0;
- f->med = 0;
- f->below = 0;
- memset(f->stat, 0, f->statsize * sizeof(int));
- return f;
-}
-
-MedianFilter * ResetMedianFilter(MedianFilter * f, int nsamples)
-{
- if (f->nsamples != nsamples) {
- ACE_OS::free(f->buf);
- f->nsamples = nsamples;
- f->buf = (int *)ACE_OS::malloc(nsamples * sizeof(int));
- if (f->buf == NULL) {
- ACE_OS::free(f);
- return NULL;
- }
- }
- f->count = 0;
- f->ptr = 0;
- f->med = 0;
- f->below = 0;
- memset(f->stat, 0, f->statsize * sizeof(int));
- return f;
-}
-
-void FreeMedianFilter(MedianFilter * f)
-{
- ACE_OS::free(f->buf);
- ACE_OS::free(f->stat);
- ACE_OS::free(f);
-}
-
-double DoMedianFilter(MedianFilter *f, double pvalue)
-{
- int value = (int)pvalue;
- int offset;
- int oldval = f->buf[f->ptr];
- if (value > f->max) {
- int * oldstat = f->stat;
- int oldsize = f->statsize;
- f->max = value + 10;
- f->statsize = f->max - f->min + 1;
- f->stat = (int *)ACE_OS::malloc(f->statsize * sizeof(int));
- if (f->stat == NULL) {
- fprintf(stderr, "MedianFilter Failed to extend up stat to % items",
- f->statsize);
- ACE_OS::perror ("");
- ACE_OS::exit (1);
- }
- memset((char *)(f->stat) + sizeof(int) * oldsize, 0,
- sizeof(int) * (f->statsize - oldsize));
- ACE_OS::memcpy (f->stat, oldstat, oldsize * sizeof(int));
- }
- else if (value < f->min) {
- int * oldstat = f->stat;
- int oldsize = f->statsize;
- f->min = value - 10;
- f->statsize = f->max - f->min + 1;
- f->stat = (int *)ACE_OS::malloc(f->statsize * sizeof(int));
- if (f->stat == NULL) {
- fprintf(stderr, "MedianFilter Failed to extend down stat to % items",
- f->statsize);
- ACE_OS::perror ("");
- ACE_OS::exit (1);
- }
- memset(f->stat, 0, sizeof(int) * (f->statsize - oldsize));
- ACE_OS::memcpy ((char *)(f->stat) + sizeof(int) * (f->statsize - oldsize),
- oldstat, sizeof(int) * oldsize);
- f->med += f->statsize - oldsize;
- }
- f->buf[f->ptr] = value;
- f->ptr = (f->ptr + 1) % f->nsamples;
- offset = value - f->min;
- if (offset < 0) {
- offset = 0;
- }
- else if (offset >= f->statsize) {
- offset = f->statsize - 1;
- }
- f->stat[offset] ++;
- if (offset < f->med) {
- f->below ++;
- }
- if (f->count >= f->nsamples) {
- offset = oldval - f->min;
- if (offset < 0) {
- offset = 0;
- }
- else if (offset >= f->statsize) {
- offset = f->statsize - 1;
- }
- f->stat[offset] --;
- if (offset < f->med) {
- f->below --;
- }
- }
- else {
- f->count ++;
- }
- oldval = f->count >> 1;
- if (f->below > oldval) {
- offset = f->med - 1;
- while (offset >= 0 && (f->below - f->stat[offset]) > oldval) {
- f->below -= f->stat[offset];
- offset --;
- }
- f->med = offset + 1;
- }
- else {
- offset = f->med;
- while (offset < f->statsize && (f->below + f->stat[offset]) <= oldval) {
- f->below += f->stat[offset];
- offset ++;
- }
- f->med = offset;
- }
- return (double)(f->med + f->min);
-}
-
-Filter * NewFilter(int type, int parameter)
-{
- switch (type) {
- case FILTER_LOWPASS:
- return (Filter *)NewLowPassFilter(1.0/(double)parameter);
- case FILTER_MEDIAN:
- return (Filter *)NewMedianFilter(parameter);
- case FILTER_AVERAGE:
- return (Filter *)NewAverageFilter(parameter);
- default:
- break;
- }
- return NULL;
-}
-
-Filter * ResetFilter(Filter * f, int parameter)
-{
- switch (f->type) {
- case FILTER_LOWPASS:
- return (Filter *)ResetLowPassFilter((LowPassFilter *)f, 1.0/(double)parameter);
- case FILTER_MEDIAN:
- return (Filter *)ResetMedianFilter((MedianFilter *)f, parameter);
- case FILTER_AVERAGE:
- return (Filter *)ResetAverageFilter((AverageFilter *)f, parameter);
- default:
- break;
- }
- return NULL;
-}
-
-void FreeFilter(Filter * f)
-{
- switch (f->type) {
- case FILTER_LOWPASS:
- FreeLowPassFilter((LowPassFilter *)f);
- break;
- case FILTER_MEDIAN:
- FreeMedianFilter((MedianFilter *)f);
- break;
- case FILTER_AVERAGE:
- FreeAverageFilter((AverageFilter *)f);
- break;
- default:
- break;
- }
-}
-
-double DoFilter(Filter *f, double value)
-{
- switch (f->type) {
- case FILTER_LOWPASS:
- return DoLowPassFilter((LowPassFilter *)f, value);
- break;
- case FILTER_MEDIAN:
- return DoMedianFilter((MedianFilter *)f, value);
- break;
- case FILTER_AVERAGE:
- return DoAverageFilter((AverageFilter *)f, value);
- break;
- default:
- break;
- }
- return FLOAT_MIN;
-}
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