Commit 2c2611b6 authored by Sebastian Dröge's avatar Sebastian Dröge
Browse files

effect: Add optv effect filter from the effectv project

This filter binarizes input frames and combines them with various
optical pattern.

Kindly relicensed to LGPL2+ by Kentaro Fukuchi <fukuchi@megaui.net>.

Fixes bug #588349.
parent dbb8a331
......@@ -2,7 +2,7 @@ plugin_LTLIBRARIES = libgsteffectv.la
libgsteffectv_la_SOURCES = \
gsteffectv.c gstedge.c gstaging.c gstdice.c gstwarp.c \
gstshagadelic.c gstvertigo.c gstrev.c gstquark.c
gstshagadelic.c gstvertigo.c gstrev.c gstquark.c gstop.c
libgsteffectv_la_CFLAGS = \
$(GST_PLUGINS_BASE_CFLAGS) \
$(GST_CONTROLLER_CFLAGS) \
......@@ -19,4 +19,4 @@ libgsteffectv_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgsteffectv_la_LIBTOOLFLAGS = --tag=disable-static
noinst_HEADERS = gsteffectv.h gstaging.h gstdice.h gstedge.h \
gstquark.h gstrev.h gstshagadelic.h gstvertigo.h gstwarp.h
gstquark.h gstrev.h gstshagadelic.h gstvertigo.h gstwarp.h gstop.h
......@@ -34,6 +34,7 @@
#include "gstshagadelic.h"
#include "gstvertigo.h"
#include "gstwarp.h"
#include "gstop.h"
struct _elements_entry
{
......@@ -50,6 +51,7 @@ static const struct _elements_entry _elements[] = {
{"vertigotv", gst_vertigotv_get_type},
{"revtv", gst_revtv_get_type},
{"quarktv", gst_quarktv_get_type},
{"optv", gst_optv_get_type},
{NULL, 0},
};
......
/* GStreamer
* Copyright (C) <2009> Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* EffecTV - Realtime Digital Video Effector
* Copyright (C) 2001-2006 FUKUCHI Kentaro
*
* OpTV - Optical art meets real-time video effect.
* Copyright (C) 2004-2005 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.
*/
/**
* SECTION:element-optv
*
* Traditional black-white optical animation is now resurrected as a
* real-time video effect. Input images are binarized and combined with
* various optical pattern.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch -v videotestsrc ! optv ! ffmpegcolorspace ! autovideosink
* ]| This pipeline shows the effect of optv on a test stream.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <math.h>
#include <string.h>
#include "gstop.h"
#include "gsteffectv.h"
#include <gst/video/video.h>
#include <gst/controller/gstcontroller.h>
enum
{
OP_SPIRAL1 = 0,
OP_SPIRAL2,
OP_PARABOLA,
OP_HSTRIPE
};
#define GST_TYPE_OPTV_MODE (gst_optv_mode_get_type())
static GType
gst_optv_mode_get_type (void)
{
static GType type = 0;
static const GEnumValue enumvalue[] = {
{OP_SPIRAL1, "Maelstrom", "maelstrom"},
{OP_SPIRAL2, "Radiation", "radiation"},
{OP_PARABOLA, "Horizontal Stripes",
"horizontal-stripes"},
{OP_HSTRIPE, "Vertical Stripes", "vertical-stripes"},
{0, NULL, NULL},
};
if (!type) {
type = g_enum_register_static ("GstOpTVMode", enumvalue);
}
return type;
}
#define DEFAULT_MODE OP_SPIRAL1
#define DEFAULT_SPEED 16
#define DEFAULT_THRESHOLD 60
enum
{
PROP_0,
PROP_MODE,
PROP_SPEED,
PROP_THRESHOLD
};
static guint32 palette[256];
GST_BOILERPLATE (GstOpTV, gst_optv, GstVideoFilter, GST_TYPE_VIDEO_FILTER);
static GstStaticPadTemplate gst_optv_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRx "; " GST_VIDEO_CAPS_RGBx)
);
static GstStaticPadTemplate gst_optv_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRx "; " GST_VIDEO_CAPS_RGBx)
);
static void
initPalette (void)
{
gint i;
guint8 v;
for (i = 0; i < 112; i++) {
palette[i] = 0;
palette[i + 128] = 0xffffff;
}
for (i = 0; i < 16; i++) {
v = 16 * (i + 1) - 1;
palette[i + 112] = (v << 16) | (v << 8) | v;
v = 255 - v;
palette[i + 240] = (v << 16) | (v << 8) | v;
}
}
static void
setOpmap (gint8 * opmap[4], gint width, gint height)
{
gint i, j, x, y;
#ifndef PS2
gdouble xx, yy, r, at, rr;
#else
gfloat xx, yy, r, at, rr;
#endif
gint sci;
sci = 640 / width;
i = 0;
for (y = 0; y < height; y++) {
yy = (gdouble) (y - height / 2) / width;
for (x = 0; x < width; x++) {
xx = (gdouble) x / width - 0.5;
#ifndef PS2
r = sqrt (xx * xx + yy * yy);
at = atan2 (xx, yy);
#else
r = sqrtf (xx * xx + yy * yy);
at = atan2f (xx, yy);
#endif
opmap[OP_SPIRAL1][i] = ((guint)
((at / M_PI * 256) + (r * 4000))) & 255;
j = r * 300 / 32;
rr = r * 300 - j * 32;
j *= 64;
j += (rr > 28) ? (rr - 28) * 16 : 0;
opmap[OP_SPIRAL2][i] = ((guint)
((at / M_PI * 4096) + (r * 1600) - j)) & 255;
opmap[OP_PARABOLA][i] =
((guint) (yy / (xx * xx * 0.3 + 0.1) * 400)) & 255;
opmap[OP_HSTRIPE][i] = x * 8 * sci;
i++;
}
}
}
/* Taken from effectv/image.c */
/* Y value filters */
static void
image_y_over (guint32 * src, guint8 * diff, gint y_threshold, gint video_area)
{
gint i;
gint R, G, B, v;
guint8 *p = diff;
for (i = video_area; i > 0; i--) {
R = ((*src) & 0xff0000) >> (16 - 1);
G = ((*src) & 0xff00) >> (8 - 2);
B = (*src) & 0xff;
v = y_threshold * 7 - (R + G + B);
*p = (guint8) (v >> 24);
src++;
p++;
}
}
static GstFlowReturn
gst_optv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
{
GstOpTV *filter = GST_OPTV (trans);
guint32 *src, *dest;
GstFlowReturn ret = GST_FLOW_OK;
gint8 *p;
guint8 *diff;
gint x, y;
GstClockTime timestamp, stream_time;
timestamp = GST_BUFFER_TIMESTAMP (in);
stream_time =
gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, timestamp);
GST_DEBUG_OBJECT (filter, "sync to %" GST_TIME_FORMAT,
GST_TIME_ARGS (timestamp));
if (GST_CLOCK_TIME_IS_VALID (stream_time))
gst_object_sync_values (G_OBJECT (filter), stream_time);
src = (guint32 *) GST_BUFFER_DATA (in);
dest = (guint32 *) GST_BUFFER_DATA (out);
if (G_UNLIKELY (filter->opmap[0] == NULL))
return GST_FLOW_NOT_NEGOTIATED;
switch (filter->mode) {
default:
case 0:
p = filter->opmap[OP_SPIRAL1];
break;
case 1:
p = filter->opmap[OP_SPIRAL2];
break;
case 2:
p = filter->opmap[OP_PARABOLA];
break;
case 3:
p = filter->opmap[OP_HSTRIPE];
break;
}
filter->phase -= filter->speed;
diff = filter->diff;
image_y_over (src, diff, filter->threshold, filter->width * filter->height);
for (y = 0; y < filter->height; y++) {
for (x = 0; x < filter->width; x++) {
*dest++ = palette[(((guint8) (*p + filter->phase)) ^ *diff++) & 255];
p++;
}
}
return ret;
}
static gboolean
gst_optv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
GstCaps * outcaps)
{
GstOpTV *filter = GST_OPTV (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)) {
gint i;
for (i = 0; i < 4; i++) {
if (filter->opmap[i])
g_free (filter->opmap[i]);
filter->opmap[i] = g_new (gint8, filter->width * filter->height);
}
setOpmap (filter->opmap, filter->width, filter->height);
if (filter->diff)
g_free (filter->diff);
filter->diff = g_new (guint8, filter->width * filter->height);
ret = TRUE;
}
return ret;
}
static gboolean
gst_optv_start (GstBaseTransform * trans)
{
GstOpTV *filter = GST_OPTV (trans);
filter->phase = 0;
return TRUE;
}
static void
gst_optv_finalize (GObject * object)
{
GstOpTV *filter = GST_OPTV (object);
if (filter->opmap[0]) {
gint i;
for (i = 0; i < 4; i++) {
if (filter->opmap[i])
g_free (filter->opmap[i]);
filter->opmap[i] = NULL;
}
}
if (filter->diff)
g_free (filter->diff);
filter->diff = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_optv_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec)
{
GstOpTV *filter = GST_OPTV (object);
switch (prop_id) {
case PROP_MODE:
filter->mode = g_value_get_enum (value);
break;
case PROP_SPEED:
filter->speed = g_value_get_int (value);
break;
case PROP_THRESHOLD:
filter->threshold = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_optv_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstOpTV *filter = GST_OPTV (object);
switch (prop_id) {
case PROP_MODE:
g_value_set_enum (value, filter->mode);
break;
case PROP_SPEED:
g_value_set_int (value, filter->speed);
break;
case PROP_THRESHOLD:
g_value_set_int (value, filter->threshold);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_optv_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details_simple (element_class, "OpTV effect",
"Filter/Effect/Video",
"Optical art meets real-time video effect",
"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_optv_sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_optv_src_template));
}
static void
gst_optv_class_init (GstOpTVClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
gobject_class->set_property = gst_optv_set_property;
gobject_class->get_property = gst_optv_get_property;
gobject_class->finalize = gst_optv_finalize;
g_object_class_install_property (gobject_class, PROP_MODE,
g_param_spec_enum ("mode", "Mode",
"Mode", GST_TYPE_OPTV_MODE, DEFAULT_MODE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_SPEED,
g_param_spec_int ("speed", "Speed",
"Effect speed", G_MININT, G_MAXINT, DEFAULT_SPEED,
GST_PARAM_CONTROLLABLE | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_THRESHOLD,
g_param_spec_int ("threshold", "Threshold",
"Luma threshold", G_MININT, G_MAXINT, DEFAULT_THRESHOLD,
GST_PARAM_CONTROLLABLE | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_optv_set_caps);
trans_class->transform = GST_DEBUG_FUNCPTR (gst_optv_transform);
trans_class->start = GST_DEBUG_FUNCPTR (gst_optv_start);
initPalette ();
}
static void
gst_optv_init (GstOpTV * filter, GstOpTVClass * klass)
{
filter->speed = DEFAULT_SPEED;
filter->mode = DEFAULT_MODE;
filter->threshold = DEFAULT_THRESHOLD;
}
/* GStreamer
* Copyright (C) <2009> Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* EffecTV - Realtime Digital Video Effector
* Copyright (C) 2001-2006 FUKUCHI Kentaro
*
* OpTV - Optical art meets real-time video effect.
* Copyright (C) 2004-2005 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_OP_H__
#define __GST_OP_H__
#include <gst/gst.h>
#include <gst/video/gstvideofilter.h>
G_BEGIN_DECLS
#define GST_TYPE_OPTV \
(gst_optv_get_type())
#define GST_OPTV(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OPTV,GstOpTV))
#define GST_OPTV_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OPTV,GstOpTVClass))
#define GST_IS_OPTV(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OPTV))
#define GST_IS_OPTV_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OPTV))
typedef struct _GstOpTV GstOpTV;
typedef struct _GstOpTVClass GstOpTVClass;
struct _GstOpTV
{
GstVideoFilter element;
/* < private > */
gint width, height;
gint mode;
gint speed;
gint threshold;
gint8 *opmap[4];
guint8 *diff;
guint8 phase;
};
struct _GstOpTVClass
{
GstVideoFilterClass parent_class;
};
GType gst_optv_get_type (void);
G_END_DECLS
#endif /* __GST_OP_H__ */
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