mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-01-10 17:35:59 +00:00
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.
This commit is contained in:
Sebastian Dröge
parent
dbb8a331de
commit
2c2611b6bf
4 changed files with 495 additions and 2 deletions
|
|
@ -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},
|
||||
};
|
||||
|
||||
|
|
|
|||
416
gst/effectv/gstop.c
Normal file
416
gst/effectv/gstop.c
Normal file
|
|
@ -0,0 +1,416 @@
|
|||
/* 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;
|
||||
}
|
||||
75
gst/effectv/gstop.h
Normal file
75
gst/effectv/gstop.h
Normal file
|
|
@ -0,0 +1,75 @@
|
|||
/* 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__ */
|
||||
Loading…
Reference in a new issue