effectv: Add rippletv element
This produces a water ripple effect on the video input,
based on motion or a rain drop algorithm.
Kindly relicensed to LGPL2+ by Kentaro Fukuchi <fukuchi@megaui.net>.
Fixes bug #588695.
diff --git a/gst/effectv/Makefile.am b/gst/effectv/Makefile.am
index 0aed796..e0c2803 100644
--- a/gst/effectv/Makefile.am
+++ b/gst/effectv/Makefile.am
@@ -3,7 +3,7 @@
libgsteffectv_la_SOURCES = \
gsteffectv.c gstedge.c gstaging.c gstdice.c gstwarp.c \
gstshagadelic.c gstvertigo.c gstrev.c gstquark.c gstop.c \
- gstradioac.c gststreak.c
+ gstradioac.c gststreak.c gstripple.c
libgsteffectv_la_CFLAGS = \
$(GST_PLUGINS_BASE_CFLAGS) \
$(GST_CONTROLLER_CFLAGS) \
@@ -21,4 +21,4 @@
noinst_HEADERS = gsteffectv.h gstaging.h gstdice.h gstedge.h \
gstquark.h gstrev.h gstshagadelic.h gstvertigo.h gstwarp.h gstop.h \
- gstradioac.h gststreak.h
+ gstradioac.h gststreak.h gstripple.h
diff --git a/gst/effectv/gsteffectv.c b/gst/effectv/gsteffectv.c
index 57cbbca..1615fd7 100644
--- a/gst/effectv/gsteffectv.c
+++ b/gst/effectv/gsteffectv.c
@@ -37,6 +37,7 @@
#include "gstop.h"
#include "gstradioac.h"
#include "gststreak.h"
+#include "gstripple.h"
struct _elements_entry
{
@@ -56,6 +57,7 @@
{"optv", gst_optv_get_type},
{"radioactv", gst_radioactv_get_type},
{"streaktv", gst_streaktv_get_type},
+ {"rippletv", gst_rippletv_get_type},
{NULL, 0},
};
diff --git a/gst/effectv/gstripple.c b/gst/effectv/gstripple.c
new file mode 100644
index 0000000..ce4a58c
--- /dev/null
+++ b/gst/effectv/gstripple.c
@@ -0,0 +1,610 @@
+/* GStreamer
+ * Copyright (C) <2009> Sebastian Dröge <sebastian.droege@collabora.co.uk>
+ *
+ * EffecTV - Realtime Digital Video Effector
+ * Copyright (C) 2001-2006 FUKUCHI Kentaro
+ *
+ * RippleTV - Water ripple effect.
+ * Copyright (C) 2001-2002 FUKUCHI Kentaro
+ *
+ * This combines the RippleTV and BaltanTV effects, which are
+ * very similar. BaltanTV is used if the feedback property is set
+ * to TRUE, otherwise RippleTV is used.
+ *
+ * EffecTV is free software. 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.
+ */
+
+/**
+ * SECTION:element-rippletv
+ *
+ * RippleTV does ripple mark effect on the video input. The ripple is caused
+ * by motion or random rain drops.
+ *
+ * <refsect2>
+ * <title>Example launch line</title>
+ * |[
+ * gst-launch -v videotestsrc ! rippletv ! ffmpegcolorspace ! autovideosink
+ * ]| This pipeline shows the effect of rippletv on a test stream.
+ * </refsect2>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <math.h>
+#include <string.h>
+
+#include "gstripple.h"
+#include "gsteffectv.h"
+
+#include <gst/video/video.h>
+
+#define DEFAULT_MODE 0
+
+enum
+{
+ PROP_0,
+ PROP_RESET,
+ PROP_MODE
+};
+
+static gint sqrtable[256];
+
+#define GST_TYPE_RIPPLETV_MODE (gst_rippletv_mode_get_type())
+static GType
+gst_rippletv_mode_get_type (void)
+{
+ static GType type = 0;
+
+ static const GEnumValue enumvalue[] = {
+ {0, "Motion Detection", "motion-detection"},
+ {1, "Rain", "rain"},
+ {0, NULL, NULL},
+ };
+
+ if (!type) {
+ type = g_enum_register_static ("GstRippleTVMode", enumvalue);
+ }
+ return type;
+}
+
+
+GST_BOILERPLATE (GstRippleTV, gst_rippletv, GstVideoFilter,
+ GST_TYPE_VIDEO_FILTER);
+
+static GstStaticPadTemplate gst_rippletv_src_template =
+ GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRx "; " GST_VIDEO_CAPS_RGBx ";"
+ GST_VIDEO_CAPS_xBGR "; " GST_VIDEO_CAPS_xRGB)
+ );
+
+static GstStaticPadTemplate gst_rippletv_sink_template =
+ GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRx "; " GST_VIDEO_CAPS_RGBx ";"
+ GST_VIDEO_CAPS_xBGR "; " GST_VIDEO_CAPS_xRGB)
+ );
+
+static const gint point = 16;
+static const gint impact = 2;
+static const gint decay = 8;
+static const gint loopnum = 2;
+
+static void
+setTable (void)
+{
+ gint i;
+
+ for (i = 0; i < 128; i++) {
+ sqrtable[i] = i * i;
+ }
+ for (i = 1; i <= 128; i++) {
+ sqrtable[256 - i] = -i * i;
+ }
+}
+
+static void
+image_bgset_y (guint32 * src, gint16 * background, gint video_area)
+{
+ gint i;
+ gint R, G, B;
+ guint32 *p;
+ gint16 *q;
+
+ p = src;
+ q = background;
+ for (i = 0; i < video_area; i++) {
+ R = ((*p) & 0xff0000) >> (16 - 1);
+ G = ((*p) & 0xff00) >> (8 - 2);
+ B = (*p) & 0xff;
+ *q = (gint16) (R + G + B);
+ p++;
+ q++;
+ }
+}
+
+static gint
+setBackground (GstRippleTV * filter, guint32 * src)
+{
+ image_bgset_y (src, filter->background, filter->width * filter->height);
+ filter->bg_is_set = TRUE;
+
+ return 0;
+}
+
+static void
+image_bgsubtract_update_y (guint32 * src, gint16 * background, guint8 * diff,
+ gint video_area)
+{
+ gint i;
+ gint R, G, B;
+ guint32 *p;
+ gint16 *q;
+ guint8 *r;
+ gint v;
+
+ p = src;
+ q = background;
+ r = diff;
+ for (i = 0; i < video_area; i++) {
+ R = ((*p) & 0xff0000) >> (16 - 1);
+ G = ((*p) & 0xff00) >> (8 - 2);
+ B = (*p) & 0xff;
+ v = (R + G + B) - (gint) (*q);
+ *q = (gint16) (R + G + B);
+ *r = ((v + 70 * 7) >> 24) | ((70 * 7 - v) >> 24);
+
+ p++;
+ q++;
+ r++;
+ }
+}
+
+static void
+motiondetect (GstRippleTV * filter, guint32 * src)
+{
+ guint8 *diff = filter->diff;
+ gint width = filter->width;
+ gint *p, *q;
+ gint x, y, h;
+
+ if (!filter->bg_is_set)
+ setBackground (filter, src);
+
+ image_bgsubtract_update_y (src, filter->background, filter->diff,
+ filter->width * filter->height);
+ p = filter->map1 + filter->map_w + 1;
+ q = filter->map2 + filter->map_w + 1;
+ diff += filter->width + 2;
+
+ for (y = filter->map_h - 2; y > 0; y--) {
+ for (x = filter->map_w - 2; x > 0; x--) {
+ h = (gint) * diff + (gint) * (diff + 1) + (gint) * (diff + width) +
+ (gint) * (diff + width + 1);
+ if (h > 0) {
+ *p = h << (point + impact - 8);
+ *q = *p;
+ }
+ p++;
+ q++;
+ diff += 2;
+ }
+ diff += width + 2;
+ p += 2;
+ q += 2;
+ }
+}
+
+static inline void
+drop (gint power, gint * map1, gint * map2, gint map_w, gint map_h)
+{
+ gint x, y;
+ gint *p, *q;
+
+ x = fastrand () % (map_w - 4) + 2;
+ y = fastrand () % (map_h - 4) + 2;
+ p = map1 + y * map_w + x;
+ q = map2 + y * map_w + x;
+ *p = power;
+ *q = power;
+ *(p - map_w) = *(p - 1) = *(p + 1) = *(p + map_w) = power / 2;
+ *(p - map_w - 1) = *(p - map_w + 1) = *(p + map_w - 1) = *(p + map_w + 1) =
+ power / 4;
+ *(q - map_w) = *(q - 1) = *(q + 1) = *(q + map_w) = power / 2;
+ *(q - map_w - 1) = *(q - map_w + 1) = *(q + map_w - 1) = *(p + map_w + 1) =
+ power / 4;
+}
+
+static void
+raindrop (GstRippleTV * filter)
+{
+ gint i;
+
+ if (filter->period == 0) {
+ switch (filter->rain_stat) {
+ case 0:
+ filter->period = (fastrand () >> 23) + 100;
+ filter->drop_prob = 0;
+ filter->drop_prob_increment = 0x00ffffff / filter->period;
+ filter->drop_power = (-(fastrand () >> 28) - 2) << point;
+ filter->drops_per_frame_max = 2 << (fastrand () >> 30); // 2,4,8 or 16
+ filter->rain_stat = 1;
+ break;
+ case 1:
+ filter->drop_prob = 0x00ffffff;
+ filter->drops_per_frame = 1;
+ filter->drop_prob_increment = 1;
+ filter->period = (filter->drops_per_frame_max - 1) * 16;
+ filter->rain_stat = 2;
+ break;
+ case 2:
+ filter->period = (fastrand () >> 22) + 1000;
+ filter->drop_prob_increment = 0;
+ filter->rain_stat = 3;
+ break;
+ case 3:
+ filter->period = (filter->drops_per_frame_max - 1) * 16;
+ filter->drop_prob_increment = -1;
+ filter->rain_stat = 4;
+ break;
+ case 4:
+ filter->period = (fastrand () >> 24) + 60;
+ filter->drop_prob_increment = -(filter->drop_prob / filter->period);
+ filter->rain_stat = 5;
+ break;
+ case 5:
+ default:
+ filter->period = (fastrand () >> 23) + 500;
+ filter->drop_prob = 0;
+ filter->rain_stat = 0;
+ break;
+ }
+ }
+ switch (filter->rain_stat) {
+ default:
+ case 0:
+ break;
+ case 1:
+ case 5:
+ if ((fastrand () >> 8) < filter->drop_prob) {
+ drop (filter->drop_power, filter->map1, filter->map2, filter->map_w,
+ filter->map_h);
+ }
+ filter->drop_prob += filter->drop_prob_increment;
+ break;
+ case 2:
+ case 3:
+ case 4:
+ for (i = filter->drops_per_frame / 16; i > 0; i--) {
+ drop (filter->drop_power, filter->map1, filter->map2, filter->map_w,
+ filter->map_h);
+ }
+ filter->drops_per_frame += filter->drop_prob_increment;
+ break;
+ }
+ filter->period--;
+}
+
+static GstFlowReturn
+gst_rippletv_transform (GstBaseTransform * trans, GstBuffer * in,
+ GstBuffer * out)
+{
+ GstRippleTV *filter = GST_RIPPLETV (trans);
+ guint32 *src, *dest;
+ GstFlowReturn ret = GST_FLOW_OK;
+ gint x, y, i;
+ gint dx, dy;
+ gint h, v;
+ gint width, height;
+ gint *p, *q, *r;
+ gint8 *vp;
+
+ src = (guint32 *) GST_BUFFER_DATA (in);
+ dest = (guint32 *) GST_BUFFER_DATA (out);
+
+ /* impact from the motion or rain drop */
+ if (filter->mode)
+ raindrop (filter);
+ else
+ motiondetect (filter, src);
+
+ /* simulate surface wave */
+ width = filter->map_w;
+ height = filter->map_h;
+
+ /* This function is called only 30 times per second. To increase a speed
+ * of wave, iterates this loop several times. */
+ for (i = loopnum; i > 0; i--) {
+ /* wave simulation */
+ p = filter->map1 + width + 1;
+ q = filter->map2 + width + 1;
+ r = filter->map3 + width + 1;
+ for (y = height - 2; y > 0; y--) {
+ for (x = width - 2; x > 0; x--) {
+ h = *(p - width - 1) + *(p - width + 1) + *(p + width - 1) + *(p +
+ width + 1)
+ + *(p - width) + *(p - 1) + *(p + 1) + *(p + width) - (*p) * 9;
+ h = h >> 3;
+ v = *p - *q;
+ v += h - (v >> decay);
+ *r = v + *p;
+ p++;
+ q++;
+ r++;
+ }
+ p += 2;
+ q += 2;
+ r += 2;
+ }
+
+ /* low pass filter */
+ p = filter->map3 + width + 1;
+ q = filter->map2 + width + 1;
+ for (y = height - 2; y > 0; y--) {
+ for (x = width - 2; x > 0; x--) {
+ h = *(p - width) + *(p - 1) + *(p + 1) + *(p + width) + (*p) * 60;
+ *q = h >> 6;
+ p++;
+ q++;
+ }
+ p += 2;
+ q += 2;
+ }
+
+ p = filter->map1;
+ filter->map1 = filter->map2;
+ filter->map2 = p;
+ }
+
+ vp = filter->vtable;
+ p = filter->map1;
+ for (y = height - 1; y > 0; y--) {
+ for (x = width - 1; x > 0; x--) {
+ /* difference of the height between two voxel. They are twiced to
+ * emphasise the wave. */
+ vp[0] = sqrtable[((p[0] - p[1]) >> (point - 1)) & 0xff];
+ vp[1] = sqrtable[((p[0] - p[width]) >> (point - 1)) & 0xff];
+ p++;
+ vp += 2;
+ }
+ p++;
+ vp += 2;
+ }
+
+ height = filter->height;
+ width = filter->width;
+ vp = filter->vtable;
+
+ /* draw refracted image. The vector table is stretched. */
+ for (y = 0; y < height; y += 2) {
+ for (x = 0; x < width; x += 2) {
+ h = (gint) vp[0];
+ v = (gint) vp[1];
+ dx = x + h;
+ dy = y + v;
+ if (dx < 0)
+ dx = 0;
+ if (dy < 0)
+ dy = 0;
+ if (dx >= width)
+ dx = width - 1;
+ if (dy >= height)
+ dy = height - 1;
+ dest[0] = src[dy * width + dx];
+
+ i = dx;
+
+ dx = x + 1 + (h + (gint) vp[2]) / 2;
+ if (dx < 0)
+ dx = 0;
+ if (dx >= width)
+ dx = width - 1;
+ dest[1] = src[dy * width + dx];
+
+ dy = y + 1 + (v + (gint) vp[filter->map_w * 2 + 1]) / 2;
+ if (dy < 0)
+ dy = 0;
+ if (dy >= height)
+ dy = height - 1;
+ dest[width] = src[dy * width + i];
+
+ dest[width + 1] = src[dy * width + dx];
+ dest += 2;
+ vp += 2;
+ }
+ dest += filter->width;
+ vp += 2;
+ }
+
+ return ret;
+}
+
+static gboolean
+gst_rippletv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
+ GstCaps * outcaps)
+{
+ GstRippleTV *filter = GST_RIPPLETV (btrans);
+ GstStructure *structure;
+ gboolean ret = FALSE;
+
+ structure = gst_caps_get_structure (incaps, 0);
+
+ if (gst_structure_get_int (structure, "width", &filter->width) &&
+ gst_structure_get_int (structure, "height", &filter->height)) {
+
+ filter->map_h = filter->height / 2 + 1;
+ filter->map_w = filter->width / 2 + 1;
+
+ if (filter->map)
+ g_free (filter->map);
+ filter->map = g_new0 (gint, filter->map_h * filter->map_w * 3);
+
+ filter->map1 = filter->map;
+ filter->map2 = filter->map + filter->map_w * filter->map_h;
+ filter->map3 = filter->map + filter->map_w * filter->map_h * 2;
+
+ if (filter->vtable)
+ g_free (filter->vtable);
+ filter->vtable = g_new0 (gint8, filter->map_h * filter->map_w * 2);
+
+ if (filter->background)
+ g_free (filter->background);
+ filter->background = g_new0 (gint16, filter->width * filter->height);
+
+ if (filter->diff)
+ g_free (filter->diff);
+ filter->diff = g_new0 (guint8, filter->width * filter->height);
+
+ ret = TRUE;
+ }
+
+ return ret;
+}
+
+static gboolean
+gst_rippletv_start (GstBaseTransform * trans)
+{
+ GstRippleTV *filter = GST_RIPPLETV (trans);
+
+ filter->bg_is_set = FALSE;
+
+ filter->period = 0;
+ filter->rain_stat = 0;
+ filter->drop_prob = 0;
+ filter->drop_prob_increment = 0;
+ filter->drops_per_frame_max = 0;
+ filter->drops_per_frame = 0;
+ filter->drop_power = 0;
+
+ return TRUE;
+}
+
+static void
+gst_rippletv_finalize (GObject * object)
+{
+ GstRippleTV *filter = GST_RIPPLETV (object);
+
+ if (filter->map)
+ g_free (filter->map);
+ filter->map = NULL;
+
+ if (filter->vtable)
+ g_free (filter->vtable);
+ filter->vtable = NULL;
+
+ if (filter->background)
+ g_free (filter->background);
+ filter->background = NULL;
+
+ if (filter->diff)
+ g_free (filter->diff);
+ filter->diff = NULL;
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gst_rippletv_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstRippleTV *filter = GST_RIPPLETV (object);
+
+ switch (prop_id) {
+ case PROP_RESET:{
+ memset (filter->map, 0,
+ filter->map_h * filter->map_w * 2 * sizeof (gint));
+ break;
+ }
+ case PROP_MODE:
+ filter->mode = g_value_get_enum (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_rippletv_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
+{
+ GstRippleTV *filter = GST_RIPPLETV (object);
+
+ switch (prop_id) {
+ case PROP_MODE:
+ g_value_set_enum (value, filter->mode);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_rippletv_base_init (gpointer g_class)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+
+ gst_element_class_set_details_simple (element_class, "RippleTV effect",
+ "Filter/Effect/Video",
+ "RippleTV does ripple mark effect on the video input",
+ "FUKUCHI, Kentarou <fukuchi@users.sourceforge.net>, "
+ "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_rippletv_sink_template));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_rippletv_src_template));
+}
+
+static void
+gst_rippletv_class_init (GstRippleTVClass * klass)
+{
+ GObjectClass *gobject_class = (GObjectClass *) klass;
+ GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+
+ gobject_class->set_property = gst_rippletv_set_property;
+ gobject_class->get_property = gst_rippletv_get_property;
+
+ gobject_class->finalize = gst_rippletv_finalize;
+
+ g_object_class_install_property (gobject_class, PROP_RESET,
+ g_param_spec_boolean ("reset", "Reset",
+ "Reset all current ripples", FALSE,
+ G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class, PROP_MODE,
+ g_param_spec_enum ("mode", "Mode",
+ "Mode", GST_TYPE_RIPPLETV_MODE, DEFAULT_MODE,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_rippletv_set_caps);
+ trans_class->transform = GST_DEBUG_FUNCPTR (gst_rippletv_transform);
+ trans_class->start = GST_DEBUG_FUNCPTR (gst_rippletv_start);
+
+ setTable ();
+}
+
+static void
+gst_rippletv_init (GstRippleTV * filter, GstRippleTVClass * klass)
+{
+ filter->mode = DEFAULT_MODE;
+}
diff --git a/gst/effectv/gstripple.h b/gst/effectv/gstripple.h
new file mode 100644
index 0000000..388ba56
--- /dev/null
+++ b/gst/effectv/gstripple.h
@@ -0,0 +1,87 @@
+/* GStreamer
+ * Copyright (C) <2009> Sebastian Dröge <sebastian.droege@collabora.co.uk>
+ *
+ * EffecTV - Realtime Digital Video Effector
+ * Copyright (C) 2001-2006 FUKUCHI Kentaro
+ *
+ * RippleTV - Water ripple effect.
+ * Copyright (C) 2001-2002 FUKUCHI Kentaro
+ *
+ * EffecTV is free software. 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_RIPPLE_H__
+#define __GST_RIPPLE_H__
+
+#include <gst/gst.h>
+
+#include <gst/video/gstvideofilter.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_RIPPLETV \
+ (gst_rippletv_get_type())
+#define GST_RIPPLETV(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RIPPLETV,GstRippleTV))
+#define GST_RIPPLETV_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RIPPLETV,GstRippleTVClass))
+#define GST_IS_RIPPLETV(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RIPPLETV))
+#define GST_IS_RIPPLETV_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RIPPLETV))
+
+typedef struct _GstRippleTV GstRippleTV;
+typedef struct _GstRippleTVClass GstRippleTVClass;
+
+struct _GstRippleTV
+{
+ GstVideoFilter element;
+
+ /* < private > */
+ gint width, height;
+
+ gint mode;
+
+ gint16 *background;
+ guint8 *diff;
+
+ gint *map, *map1, *map2, *map3;
+ gint map_h, map_w;
+
+ gint8 *vtable;
+
+ gboolean bg_is_set;
+
+ gint period;
+ gint rain_stat;
+ guint drop_prob;
+ gint drop_prob_increment;
+ gint drops_per_frame_max;
+ gint drops_per_frame;
+ gint drop_power;
+};
+
+struct _GstRippleTVClass
+{
+ GstVideoFilterClass parent_class;
+};
+
+GType gst_rippletv_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_RIPPLE_H__ */
