mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-09 13:48:55 +00:00
Original commit message from CVS: * ext/cairo/gsttimeoverlay.c: (gst_cairo_time_overlay_transform): * ext/jpeg/gstjpegenc.c: (gst_jpegenc_chain): * ext/libpng/gstpngenc.c: (gst_pngenc_chain): * ext/wavpack/gstwavpackdec.c: (gst_wavpack_dec_chain): * gst/debug/gstnavigationtest.c: (gst_navigationtest_transform): * gst/effectv/gstaging.c: (gst_agingtv_transform): * gst/effectv/gstdice.c: (gst_dicetv_transform): * gst/effectv/gstedge.c: (gst_edgetv_transform): * gst/effectv/gstquark.c: (gst_quarktv_transform): * gst/effectv/gstrev.c: (gst_revtv_transform): * gst/effectv/gstshagadelic.c: (gst_shagadelictv_transform): * gst/effectv/gstvertigo.c: (gst_vertigotv_transform): * gst/effectv/gstwarp.c: (gst_warptv_transform): * gst/matroska/matroska-demux.c: (gst_matroska_demux_add_wvpk_header), (gst_matroska_demux_check_subtitle_buffer), (gst_matroska_decode_buffer): * gst/videofilter/gstvideoflip.c: (gst_video_flip_transform): Fix build against core CVS.
333 lines
8.5 KiB
C
333 lines
8.5 KiB
C
/* GStreamer
|
|
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
|
*
|
|
* EffecTV:
|
|
* Copyright (C) 2001 FUKUCHI Kentarou
|
|
*
|
|
* EffecTV - Realtime Digital Video Effector
|
|
* Copyright (C) 2001 FUKUCHI Kentarou
|
|
*
|
|
* revTV based on Rutt-Etra Video Synthesizer 1974?
|
|
|
|
* (c)2002 Ed Tannenbaum
|
|
*
|
|
* This effect acts like a waveform monitor on each line.
|
|
* It was originally done by deflecting the electron beam on a monitor using
|
|
* additional electromagnets on the yoke of a b/w CRT.
|
|
* Here it is emulated digitally.
|
|
|
|
* Experimaental tapes were made with this system by Bill and
|
|
* Louise Etra and Woody and Steina Vasulka
|
|
|
|
* The line spacing can be controlled using the 1 and 2 Keys.
|
|
* The gain is controlled using the 3 and 4 keys.
|
|
* The update rate is controlled using the 0 and - keys.
|
|
|
|
* 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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <gst/video/gstvideofilter.h>
|
|
|
|
#include <math.h>
|
|
#include <string.h>
|
|
|
|
#include <gst/video/video.h>
|
|
|
|
#define GST_TYPE_REVTV \
|
|
(gst_revtv_get_type())
|
|
#define GST_REVTV(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_REVTV,GstRevTV))
|
|
#define GST_REVTV_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_REVTV,GstRevTVClass))
|
|
#define GST_IS_REVTV(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_REVTV))
|
|
#define GST_IS_REVTV_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_REVTV))
|
|
|
|
#define THE_COLOR 0xffffffff
|
|
|
|
typedef struct _GstRevTV GstRevTV;
|
|
typedef struct _GstRevTVClass GstRevTVClass;
|
|
|
|
struct _GstRevTV
|
|
{
|
|
GstVideoFilter videofilter;
|
|
|
|
gint width, height;
|
|
gint vgrabtime;
|
|
gint vgrab;
|
|
gint linespace;
|
|
gint vscale;
|
|
};
|
|
|
|
struct _GstRevTVClass
|
|
{
|
|
GstVideoFilterClass parent_class;
|
|
};
|
|
|
|
enum
|
|
{
|
|
ARG_0,
|
|
ARG_DELAY,
|
|
ARG_LINESPACE,
|
|
ARG_GAIN
|
|
};
|
|
|
|
GType gst_revtv_get_type (void);
|
|
|
|
static const GstElementDetails gst_revtv_details =
|
|
GST_ELEMENT_DETAILS ("RevTV effect",
|
|
"Filter/Effect/Video",
|
|
"A video waveform monitor for each line of video processed",
|
|
"Wim Taymans <wim.taymans@chello.be>");
|
|
|
|
static GstStaticPadTemplate gst_revtv_src_template =
|
|
GST_STATIC_PAD_TEMPLATE ("src",
|
|
GST_PAD_SRC,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRx)
|
|
);
|
|
|
|
static GstStaticPadTemplate gst_revtv_sink_template =
|
|
GST_STATIC_PAD_TEMPLATE ("sink",
|
|
GST_PAD_SINK,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRx)
|
|
);
|
|
|
|
static GstVideoFilterClass *parent_class = NULL;
|
|
|
|
static gboolean
|
|
gst_revtv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
|
|
GstCaps * outcaps)
|
|
{
|
|
GstRevTV *filter = GST_REVTV (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)) {
|
|
ret = TRUE;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_revtv_get_unit_size (GstBaseTransform * btrans, GstCaps * caps,
|
|
guint * size)
|
|
{
|
|
GstRevTV *filter;
|
|
GstStructure *structure;
|
|
gboolean ret = FALSE;
|
|
gint width, height;
|
|
|
|
filter = GST_REVTV (btrans);
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
|
|
if (gst_structure_get_int (structure, "width", &width) &&
|
|
gst_structure_get_int (structure, "height", &height)) {
|
|
*size = width * height * 32 / 8;
|
|
ret = TRUE;
|
|
GST_DEBUG_OBJECT (filter, "our frame size is %d bytes (%dx%d)", *size,
|
|
width, height);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_revtv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
|
|
{
|
|
GstRevTV *filter;
|
|
guint32 *src, *dest;
|
|
gint width, height;
|
|
guint32 *nsrc;
|
|
gint y, x, R, G, B, yval;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
filter = GST_REVTV (trans);
|
|
|
|
gst_buffer_copy_metadata (out, in, GST_BUFFER_COPY_TIMESTAMPS);
|
|
|
|
src = (guint32 *) GST_BUFFER_DATA (in);
|
|
dest = (guint32 *) GST_BUFFER_DATA (out);
|
|
|
|
width = filter->width;
|
|
height = filter->height;
|
|
|
|
/* Clear everything to black */
|
|
memset (dest, 0, width * height * sizeof (guint32));
|
|
|
|
// draw the offset lines
|
|
for (y = 0; y < height; y += filter->linespace) {
|
|
for (x = 0; x <= width; x++) {
|
|
nsrc = src + (y * width) + x;
|
|
|
|
// Calc Y Value for curpix
|
|
R = ((*nsrc) & 0xff0000) >> (16 - 1);
|
|
G = ((*nsrc) & 0xff00) >> (8 - 2);
|
|
B = (*nsrc) & 0xff;
|
|
|
|
yval = y - ((short) (R + G + B) / filter->vscale);
|
|
|
|
if (yval > 0) {
|
|
dest[x + (yval * width)] = THE_COLOR;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_revtv_set_property (GObject * object, guint prop_id, const GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
GstRevTV *filter;
|
|
|
|
g_return_if_fail (GST_IS_REVTV (object));
|
|
|
|
filter = GST_REVTV (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_DELAY:
|
|
filter->vgrabtime = g_value_get_int (value);
|
|
break;
|
|
case ARG_LINESPACE:
|
|
filter->linespace = g_value_get_int (value);
|
|
break;
|
|
case ARG_GAIN:
|
|
filter->vscale = g_value_get_int (value);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_revtv_get_property (GObject * object, guint prop_id, GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
GstRevTV *filter;
|
|
|
|
g_return_if_fail (GST_IS_REVTV (object));
|
|
|
|
filter = GST_REVTV (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_DELAY:
|
|
g_value_set_int (value, filter->vgrabtime);
|
|
break;
|
|
case ARG_LINESPACE:
|
|
g_value_set_int (value, filter->linespace);
|
|
break;
|
|
case ARG_GAIN:
|
|
g_value_set_int (value, filter->vscale);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_revtv_base_init (gpointer g_class)
|
|
{
|
|
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
|
|
|
|
gst_element_class_set_details (element_class, &gst_revtv_details);
|
|
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_static_pad_template_get (&gst_revtv_sink_template));
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_static_pad_template_get (&gst_revtv_src_template));
|
|
}
|
|
|
|
static void
|
|
gst_revtv_class_init (gpointer klass, gpointer class_data)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstElementClass *element_class;
|
|
GstBaseTransformClass *trans_class;
|
|
|
|
gobject_class = (GObjectClass *) klass;
|
|
element_class = (GstElementClass *) klass;
|
|
trans_class = (GstBaseTransformClass *) klass;
|
|
|
|
parent_class = g_type_class_peek_parent (klass);
|
|
|
|
gobject_class->set_property = gst_revtv_set_property;
|
|
gobject_class->get_property = gst_revtv_get_property;
|
|
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DELAY,
|
|
g_param_spec_int ("delay", "Delay", "Delay in frames between updates",
|
|
1, 100, 1, G_PARAM_READWRITE));
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LINESPACE,
|
|
g_param_spec_int ("linespace", "Linespace", "Control line spacing",
|
|
1, 100, 6, G_PARAM_READWRITE));
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_GAIN,
|
|
g_param_spec_int ("gain", "Gain", "Control gain",
|
|
1, 200, 50, G_PARAM_READWRITE));
|
|
|
|
trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_revtv_set_caps);
|
|
trans_class->get_unit_size = GST_DEBUG_FUNCPTR (gst_revtv_get_unit_size);
|
|
trans_class->transform = GST_DEBUG_FUNCPTR (gst_revtv_transform);
|
|
}
|
|
|
|
static void
|
|
gst_revtv_init (GTypeInstance * instance, gpointer g_class)
|
|
{
|
|
GstRevTV *restv = GST_REVTV (instance);
|
|
|
|
restv->vgrabtime = 1;
|
|
restv->vgrab = 0;
|
|
restv->linespace = 6;
|
|
restv->vscale = 50;
|
|
}
|
|
|
|
GType
|
|
gst_revtv_get_type (void)
|
|
{
|
|
static GType revtv_type = 0;
|
|
|
|
if (!revtv_type) {
|
|
static const GTypeInfo revtv_info = {
|
|
sizeof (GstRevTVClass),
|
|
gst_revtv_base_init,
|
|
NULL,
|
|
(GClassInitFunc) gst_revtv_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstRevTV),
|
|
0,
|
|
(GInstanceInitFunc) gst_revtv_init,
|
|
};
|
|
|
|
revtv_type =
|
|
g_type_register_static (GST_TYPE_VIDEO_FILTER, "GstRevTV", &revtv_info,
|
|
0);
|
|
}
|
|
return revtv_type;
|
|
}
|