1 files changed, 91 insertions, 0 deletions
diff --git a/TAO/orbsvcs/tests/AVStreams/mpeg/source/mpeg_shared/filters.h b/TAO/orbsvcs/tests/AVStreams/mpeg/source/mpeg_shared/filters.h
new file mode 100644
index 00000000000..50950277478
--- /dev/null
+++ b/TAO/orbsvcs/tests/AVStreams/mpeg/source/mpeg_shared/filters.h
@@ -0,0 +1,91 @@
+/* $Id$ */
+/* 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
+ */
+
+#if !defined (AV_FILTERS_H)
+#define AV_FILTERS_H
+
+#define FILTER_LOWPASS  0
+#define FILTER_MEDIAN   1
+#define FILTER_AVERAGE  2
+
+typedef struct MedianFilter {
+  int type;
+  int * buf;
+  int nsamples;
+  int count;
+  int ptr;
+  int * stat;
+  int statsize;
+  int max, min;
+  int med; /* median offset to stat */
+  int below; /* total points below the med entry */
+} MedianFilter;
+
+typedef struct LowPassFilter {
+  int type;
+  int count;
+  int maxcount;
+  double R;
+  double result;
+} LowPassFilter;
+
+typedef struct AverageFilter {
+  int type;
+  double * buf;
+  int nsamples;
+  int ptr;
+  double sum;
+  int count;
+} AverageFilter;
+
+typedef union Filter {
+  int type;
+  MedianFilter m;
+  AverageFilter a;
+  LowPassFilter l;
+} Filter;
+
+Filter * NewFilter(int type, int parameter);
+Filter * ResetFilter(Filter * f, int parameter);
+void FreeFilter(Filter * f);
+double DoFilter(Filter *f, double value);
+
+MedianFilter * NewMedianFilter(int nsamples);
+MedianFilter * ResetMedianFilter(MedianFilter * f, int nsamples);
+void FreeMedianFilter(MedianFilter * f);
+double DoMedianFilter(MedianFilter *f, double value);
+
+AverageFilter * NewAverageFilter(int nsamples);
+AverageFilter * ResetAverageFilter(AverageFilter * f, int nsamples);
+void FreeAverageFilter(AverageFilter * f);
+double DoAverageFilter(AverageFilter *f, double value);
+
+LowPassFilter * NewLowPassFilter(double R);
+LowPassFilter * ResetLowPassFilter(LowPassFilter * f, double R);
+void FreeLowPassFilter(LowPassFilter * f);
+double DoLowPassFilter(LowPassFilter *f, double value);
+
+#endif /* AV_FILTERS_H */