Commit 9e67891f authored by Wim Taymans's avatar Wim Taymans
Browse files

videomedian: copy media to videomedian

Copy the median video filter to videofilters and rename to
videomedian.
parent b8931973
plugin_LTLIBRARIES = libgstvideofilter.la
noinst_HEADERS = gstvideoflip.h gstvideobalance.h gstgamma.h
noinst_HEADERS = gstvideoflip.h gstvideobalance.h gstgamma.h gstvideomedian.h
EXTRA_DIST = gstvideotemplate.c make_filter
CLEANFILES = gstvideoexample.c
......@@ -8,7 +8,8 @@ CLEANFILES = gstvideoexample.c
libgstvideofilter_la_SOURCES = plugin.c \
gstvideoflip.c \
gstvideobalance.c \
gstgamma.c
gstgamma.c \
gstvideomedian.c
libgstvideofilter_la_CFLAGS = $(GST_CFLAGS) \
$(GST_BASE_CFLAGS) \
$(GST_PLUGINS_BASE_CFLAGS)
......
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include "gstvideomedian.h"
static GstStaticPadTemplate video_median_src_factory =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ I420, YV12 }"))
);
static GstStaticPadTemplate video_median_sink_factory =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ I420, YV12 }"))
);
/* Median signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_ACTIVE,
PROP_FILTERSIZE,
PROP_LUM_ONLY
};
#define gst_video_median_parent_class parent_class
G_DEFINE_TYPE (GstVideoMedian, gst_video_median, GST_TYPE_VIDEO_FILTER);
static GstFlowReturn gst_video_median_transform_frame (GstVideoFilter * filter,
GstVideoFrame * in_frame, GstVideoFrame * out_frame);
static void gst_video_median_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_video_median_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void
gst_video_median_class_init (GstVideoMedianClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstVideoFilterClass *vfilter_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
vfilter_class = (GstVideoFilterClass *) klass;
gobject_class->set_property = gst_video_median_set_property;
gobject_class->get_property = gst_video_median_get_property;
/* FIXME: add long property descriptions */
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_ACTIVE,
g_param_spec_boolean ("active", "active", "active", TRUE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_FILTERSIZE,
g_param_spec_int ("filtersize", "filtersize", "filtersize", G_MININT,
G_MAXINT, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_LUM_ONLY,
g_param_spec_boolean ("lum-only", "lum-only", "lum-only", TRUE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&video_median_sink_factory));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&video_median_src_factory));
gst_element_class_set_static_metadata (gstelement_class, "Median effect",
"Filter/Effect/Video",
"Apply a median filter to an image",
"Wim Taymans <wim.taymans@gmail.com>");
vfilter_class->transform_frame =
GST_DEBUG_FUNCPTR (gst_video_median_transform_frame);
}
void
gst_video_median_init (GstVideoMedian * median)
{
median->filtersize = 5;
median->lum_only = TRUE;
median->active = TRUE;
}
#define PIX_SORT(a,b) { if ((a)>(b)) PIX_SWAP((a),(b)); }
#define PIX_SWAP(a,b) { unsigned char temp=(a);(a)=(b);(b)=temp; }
static void
median_5 (guint8 * dest, gint dstride, const guint8 * src, gint sstride,
gint width, gint height)
{
unsigned char p[5];
int i, j, k;
/* copy the top and bottom rows into the result array */
for (i = 0; i < width; i++) {
dest[i] = src[i];
dest[(height - 1) * dstride + i] = src[(height - 1) * sstride + i];
}
/* process the interior pixels */
for (k = 2; k < height; k++) {
dest += dstride;
src += sstride;
dest[0] = src[0];
for (j = 2, i = 1; j < width; j++, i++) {
p[0] = src[i - sstride];
p[1] = src[i - 1];
p[2] = src[i];
p[3] = src[i + 1];
p[4] = src[i + sstride];
PIX_SORT (p[0], p[1]);
PIX_SORT (p[3], p[4]);
PIX_SORT (p[0], p[3]);
PIX_SORT (p[1], p[4]);
PIX_SORT (p[1], p[2]);
PIX_SORT (p[2], p[3]);
PIX_SORT (p[1], p[2]);
dest[i] = p[2];
}
dest[i] = src[i];
}
}
static void
median_9 (guint8 * dest, gint dstride, const guint8 * src, gint sstride,
gint width, gint height)
{
unsigned char p[9];
int i, j, k;
/*copy the top and bottom rows into the result array */
for (i = 0; i < width; i++) {
dest[i] = src[i];
dest[(height - 1) * dstride + i] = src[(height - 1) * sstride + i];
}
/* process the interior pixels */
for (k = 2; k < height; k++) {
dest += dstride;
src += sstride;
dest[0] = src[0];
for (j = 2, i = 1; j < width; j++, i++) {
p[0] = src[i - sstride - 1];
p[1] = src[i - sstride];
p[2] = src[i - sstride + 1];
p[3] = src[i - 1];
p[4] = src[i];
p[5] = src[i + 1];
p[6] = src[i + sstride - 1];
p[7] = src[i + sstride];
p[8] = src[i + sstride + 1];
PIX_SORT (p[1], p[2]);
PIX_SORT (p[4], p[5]);
PIX_SORT (p[7], p[8]);
PIX_SORT (p[0], p[1]);
PIX_SORT (p[3], p[4]);
PIX_SORT (p[6], p[7]);
PIX_SORT (p[1], p[2]);
PIX_SORT (p[4], p[5]);
PIX_SORT (p[7], p[8]);
PIX_SORT (p[0], p[3]);
PIX_SORT (p[5], p[8]);
PIX_SORT (p[4], p[7]);
PIX_SORT (p[3], p[6]);
PIX_SORT (p[1], p[4]);
PIX_SORT (p[2], p[5]);
PIX_SORT (p[4], p[7]);
PIX_SORT (p[4], p[2]);
PIX_SORT (p[6], p[4]);
PIX_SORT (p[4], p[2]);
dest[i] = p[4];
}
dest[i] = src[i];
}
}
static GstFlowReturn
gst_video_median_transform_frame (GstVideoFilter * filter,
GstVideoFrame * in_frame, GstVideoFrame * out_frame)
{
GstVideoMedian *median = GST_VIDEO_MEDIAN (filter);
if (median->filtersize == 5) {
median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0),
GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0),
GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0),
GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0),
GST_VIDEO_FRAME_WIDTH (in_frame), GST_VIDEO_FRAME_HEIGHT (in_frame));
if (median->lum_only) {
gst_video_frame_copy_plane (out_frame, in_frame, 1);
gst_video_frame_copy_plane (out_frame, in_frame, 2);
} else {
median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 1),
GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 1),
GST_VIDEO_FRAME_PLANE_DATA (in_frame, 1),
GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1),
GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 2),
GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 2),
GST_VIDEO_FRAME_PLANE_DATA (in_frame, 2),
GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 2),
GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
}
} else {
median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0),
GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0),
GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0),
GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0),
GST_VIDEO_FRAME_WIDTH (in_frame), GST_VIDEO_FRAME_HEIGHT (in_frame));
if (median->lum_only) {
gst_video_frame_copy_plane (out_frame, in_frame, 1);
gst_video_frame_copy_plane (out_frame, in_frame, 2);
} else {
median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 1),
GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 1),
GST_VIDEO_FRAME_PLANE_DATA (in_frame, 1),
GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1),
GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 2),
GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 2),
GST_VIDEO_FRAME_PLANE_DATA (in_frame, 2),
GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 2),
GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
}
}
return GST_FLOW_OK;
}
static void
gst_video_median_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVideoMedian *median;
gint argvalue;
median = GST_VIDEO_MEDIAN (object);
switch (prop_id) {
case PROP_FILTERSIZE:
argvalue = g_value_get_int (value);
if (argvalue != 5 && argvalue != 9) {
g_warning ("median: invalid filtersize (%d), must be 5 or 9\n",
argvalue);
} else {
median->filtersize = argvalue;
}
break;
case PROP_ACTIVE:
median->active = g_value_get_boolean (value);
break;
case PROP_LUM_ONLY:
median->lum_only = g_value_get_boolean (value);
break;
default:
break;
}
}
static void
gst_video_median_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstVideoMedian *median;
median = GST_VIDEO_MEDIAN (object);
switch (prop_id) {
case PROP_FILTERSIZE:
g_value_set_int (value, median->filtersize);
break;
case PROP_ACTIVE:
g_value_set_boolean (value, median->active);
break;
case PROP_LUM_ONLY:
g_value_set_boolean (value, median->lum_only);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_VIDEO_MEDIAN_H__
#define __GST_VIDEO_MEDIAN_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/video/gstvideofilter.h>
G_BEGIN_DECLS
#define GST_TYPE_VIDEO_MEDIAN \
(gst_video_median_get_type())
#define GST_VIDEO_MEDIAN(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_MEDIAN,GstVideoMedian))
#define GST_VIDEO_MEDIAN_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_MEDIAN,GstVideoMedianClass))
#define GST_IS_VIDEO_MEDIAN(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_MEDIAN))
#define GST_IS_VIDEO_MEDIAN_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_MEDIAN))
typedef struct _GstVideoMedian GstVideoMedian;
typedef struct _GstVideoMedianClass GstVideoMedianClass;
struct _GstVideoMedian {
GstVideoFilter parent;
int format;
int width;
int height;
int filtersize;
gboolean active;
gboolean lum_only;
GstPad *sinkpad,*srcpad;
};
struct _GstVideoMedianClass {
GstVideoFilterClass parent_class;
};
GType gst_video_median_get_type (void);
G_END_DECLS
#endif /* __GST_VIDEO_MEDIAN_H__ */
......@@ -26,6 +26,7 @@
#include "gstgamma.h"
#include "gstvideoflip.h"
#include "gstvideobalance.h"
#include "gstvideomedian.h"
static gboolean
plugin_init (GstPlugin * plugin)
......@@ -34,7 +35,9 @@ plugin_init (GstPlugin * plugin)
&& gst_element_register (plugin, "videobalance", GST_RANK_NONE,
GST_TYPE_VIDEO_BALANCE)
&& gst_element_register (plugin, "videoflip", GST_RANK_NONE,
GST_TYPE_VIDEO_FLIP));
GST_TYPE_VIDEO_FLIP)
&& gst_element_register (plugin, "videomedian", GST_RANK_NONE,
GST_TYPE_VIDEO_MEDIAN));
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
......
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