$(top_srcdir)/ext/opencv/gstfacedetect.h \
$(top_srcdir)/ext/opencv/gstpyramidsegment.h \
$(top_srcdir)/ext/opencv/gsttemplatematch.h \
- $(top_srcdir)/ext/opencv/gsttextwrite.h \
+ $(top_srcdir)/ext/opencv/gsttextoverlay.h \
$(top_srcdir)/ext/rsvg/gstrsvgdec.h \
$(top_srcdir)/ext/rsvg/gstrsvgoverlay.h \
$(top_srcdir)/ext/sdl/sdlaudiosink.h \
<xi:include href="xml/element-stereo.xml" />
<xi:include href="xml/element-stretch.xml" />
<xi:include href="xml/element-templatematch.xml" />
- <xi:include href="xml/element-textwrite.xml" />
+ <xi:include href="xml/element-opencvtextoverlay.xml" />
<xi:include href="xml/element-tiger.xml" />
<xi:include href="xml/element-timidity.xml" />
<xi:include href="xml/element-trm.xml" />
<xi:include href="xml/plugin-neon.xml" />
<xi:include href="xml/plugin-nsf.xml" />
<xi:include href="xml/plugin-nuvdemux.xml" />
+ <xi:include href="xml/plugin-opencv.xml" />
<xi:include href="xml/plugin-pcapparse.xml" />
<xi:include href="xml/plugin-qtmux.xml" />
<xi:include href="xml/plugin-rawparse.xml" />
gst_nuv_demux_get_type
</SECTION>
+<FILE>element-opencvtextoverlay</FILE>
+<TITLE>opencvtextoverlay</TITLE>
+GstOpencvTextOverlay
+<SUBSECTION Standard>
+GstOpencvTextOverlayClass
+GST_OPENCV_TEXT_OVERLAY
+GST_OPENCV_TEXT_OVERLAY_CLASS
+GST_TYPE_OPENCV_TEXT_OVERLAY
+GST_IS_OPENCV_TEXT_OVERLAY
+GST_IS_OPENCV_TEXT_OVERLAY_CLASS
+gst_opencv_text_overlay_get_type
+gst_opencv_text_overlay_plugin_init
+</SECTION>
+
<SECTION>
<FILE>element-pcapparse</FILE>
<TITLE>pcapparse</TITLE>
gst_templatematch_plugin_init
</SECTION>
-<FILE>element-textwrite</FILE>
-<TITLE>textwrite</TITLE>
-Gsttextwrite
-<SUBSECTION Standard>
-GsttextwriteClass
-GST_textwrite
-GST_textwrite_CLASS
-GST_TYPE_textwrite
-GST_IS_textwrite
-GST_IS_textwrite_CLASS
-gst_textwrite_get_type
-gst_textwrite_plugin_init
-</SECTION>
-
<SECTION>
<FILE>element-timidity</FILE>
<TITLE>timidity</TITLE>
gstfacedetect.c \
gstpyramidsegment.c \
gsttemplatematch.c \
- gsttextwrite.c
+ gsttextoverlay.c
# flags used to compile this facedetect
# add other _CFLAGS and _LIBS as needed
gstfacedetect.h \
gstpyramidsegment.h \
gsttemplatematch.h \
- gsttextwrite.h
+ gsttextoverlay.h
#include "gstfacedetect.h"
#include "gstpyramidsegment.h"
#include "gsttemplatematch.h"
-#include "gsttextwrite.h"
+#include "gsttextoverlay.h"
static gboolean
plugin_init (GstPlugin * plugin)
if (!gst_templatematch_plugin_init (plugin))
return FALSE;
- if (!gst_textwrite_plugin_init (plugin))
+ if (!gst_opencv_text_overlay_plugin_init (plugin))
return FALSE;
return TRUE;
--- /dev/null
+/*
+ * GStreamer
+ * Copyright (C) 2005 Thomas Vander Stichele <thomas@apestaart.org>
+ * Copyright (C) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
+ * Copyright (C) 2010 Sreerenj Balachandran <bsreerenj@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * 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-opencvtextoverlay
+ *
+ * opencvtextoverlay renders the text on top of the video frames
+ *
+ * <refsect2>
+ * <title>Example launch line</title>
+ * |[
+ * gst-launch-0.10 videotestsrc ! ffmpegcolorspace ! opencvtextoverlay text="Opencv Text Overlay " ! ffmpegcolorspace ! xvimagesink
+ * ]|
+ * </refsect2>
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <gst/gst.h>
+
+#include "gstopencvutils.h"
+#include "gsttextoverlay.h"
+
+GST_DEBUG_CATEGORY_STATIC (gst_opencv_text_overlay_debug);
+#define GST_CAT_DEFAULT gst_opencv_opencv_text_overlay_debug
+
+#define DEFAULT_PROP_TEXT ""
+#define DEFAULT_PROP_WIDTH 1
+#define DEFAULT_PROP_HEIGHT 1
+#define DEFAULT_PROP_XPOS 50
+#define DEFAULT_PROP_YPOS 50
+#define DEFAULT_PROP_THICKNESS 2
+#define DEFAULT_PROP_COLOR 0
+
+
+/* Filter signals and args */
+enum
+{
+ /* FILL ME */
+ LAST_SIGNAL
+};
+#define DEFAULT_WIDTH 1.0
+#define DEFAULT_HEIGHT 1.0
+enum
+{
+ PROP_0,
+ PROP_XPOS,
+ PROP_YPOS,
+ PROP_THICKNESS,
+ PROP_COLOR_R,
+ PROP_COLOR_G,
+ PROP_COLOR_B,
+ PROP_TEXT,
+ PROP_HEIGHT,
+ PROP_WIDTH
+};
+
+/* the capabilities of the inputs and outputs.
+ *
+ * describe the real formats here.
+ */
+static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB)
+ );
+
+static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB)
+ );
+
+GST_BOILERPLATE (GstOpencvTextOverlay, gst_opencv_text_overlay, GstElement,
+ GST_TYPE_ELEMENT);
+
+static void gst_opencv_text_overlay_set_property (GObject * object,
+ guint prop_id, const GValue * value, GParamSpec * pspec);
+static void gst_opencv_text_overlay_get_property (GObject * object,
+ guint prop_id, GValue * value, GParamSpec * pspec);
+
+static gboolean gst_opencv_text_overlay_set_caps (GstPad * pad, GstCaps * caps);
+static GstFlowReturn gst_opencv_text_overlay_chain (GstPad * pad,
+ GstBuffer * buf);
+
+
+
+/* Clean up */
+static void
+gst_opencv_text_overlay_finalize (GObject * obj)
+{
+ GstOpencvTextOverlay *filter = GST_OPENCV_TEXT_OVERLAY (obj);
+
+ if (filter->cvImage) {
+ cvReleaseImage (&filter->cvImage);
+ }
+
+ G_OBJECT_CLASS (parent_class)->finalize (obj);
+}
+
+
+
+/* GObject vmethod implementations */
+
+static void
+gst_opencv_text_overlay_base_init (gpointer gclass)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
+
+ gst_element_class_set_details_simple (element_class,
+ "opencvtextoverlay",
+ "Filter/Effect/Video",
+ "Write text on the top of video", "sreerenj<bsreerenj@gmail.com>");
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&src_factory));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&sink_factory));
+}
+
+/* initialize the opencvtextoverlay's class */
+static void
+gst_opencv_text_overlay_class_init (GstOpencvTextOverlayClass * klass)
+{
+ GObjectClass *gobject_class;
+
+ gobject_class = (GObjectClass *) klass;
+
+ parent_class = g_type_class_peek_parent (klass);
+ gobject_class->finalize =
+ GST_DEBUG_FUNCPTR (gst_opencv_text_overlay_finalize);
+
+ gobject_class->set_property = gst_opencv_text_overlay_set_property;
+ gobject_class->get_property = gst_opencv_text_overlay_get_property;
+
+
+ g_object_class_install_property (gobject_class, PROP_TEXT,
+ g_param_spec_string ("text", "text",
+ "Text to be display.", DEFAULT_PROP_TEXT,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class, PROP_XPOS,
+ g_param_spec_int ("xpos", "horizontal position",
+ "Sets the Horizontal position", 0, G_MAXINT,
+ DEFAULT_PROP_XPOS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class, PROP_YPOS,
+ g_param_spec_int ("ypos", "vertical position",
+ "Sets the Vertical position", 0, G_MAXINT,
+ DEFAULT_PROP_YPOS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class, PROP_THICKNESS,
+ g_param_spec_int ("thickness", "font thickness",
+ "Sets the Thickness of Font", 0, G_MAXINT,
+ DEFAULT_PROP_THICKNESS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class, PROP_COLOR_R,
+ g_param_spec_int ("colorR", "color -Red ",
+ "Sets the color -R", 0, 255,
+ DEFAULT_PROP_COLOR, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class, PROP_COLOR_G,
+ g_param_spec_int ("colorG", "color -Green",
+ "Sets the color -G", 0, 255,
+ DEFAULT_PROP_COLOR, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class, PROP_COLOR_B,
+ g_param_spec_int ("colorB", "color -Blue",
+ "Sets the color -B", 0, 255,
+ DEFAULT_PROP_COLOR, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class, PROP_HEIGHT,
+ g_param_spec_double ("height", "Height",
+ "Sets the height of fonts", 1.0, 5.0,
+ DEFAULT_HEIGHT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class, PROP_WIDTH,
+ g_param_spec_double ("width", "Width",
+ "Sets the width of fonts", 1.0, 5.0,
+ DEFAULT_WIDTH, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+}
+
+/* initialize the new element
+ * instantiate pads and add them to element
+ * set pad calback functions
+ * initialize instance structure
+ */
+static void
+gst_opencv_text_overlay_init (GstOpencvTextOverlay * filter,
+ GstOpencvTextOverlayClass * gclass)
+{
+ filter->sinkpad = gst_pad_new_from_static_template (&sink_factory, "sink");
+ gst_pad_set_setcaps_function (filter->sinkpad,
+ GST_DEBUG_FUNCPTR (gst_opencv_text_overlay_set_caps));
+ gst_pad_set_getcaps_function (filter->sinkpad,
+ GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
+ gst_pad_set_chain_function (filter->sinkpad,
+ GST_DEBUG_FUNCPTR (gst_opencv_text_overlay_chain));
+
+ filter->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
+ gst_pad_set_getcaps_function (filter->srcpad,
+ GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
+
+ gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
+ gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
+ filter->textbuf = g_strdup (DEFAULT_PROP_TEXT);
+ filter->width = DEFAULT_PROP_WIDTH;
+ filter->height = DEFAULT_PROP_HEIGHT;
+ filter->xpos = DEFAULT_PROP_XPOS;
+ filter->ypos = DEFAULT_PROP_YPOS;
+ filter->thickness = DEFAULT_PROP_THICKNESS;
+ filter->colorR = DEFAULT_PROP_COLOR;
+ filter->colorG = DEFAULT_PROP_COLOR;
+ filter->colorB = DEFAULT_PROP_COLOR;
+
+}
+
+static void
+gst_opencv_text_overlay_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstOpencvTextOverlay *filter = GST_OPENCV_TEXT_OVERLAY (object);
+
+ switch (prop_id) {
+ case PROP_TEXT:
+ g_free (filter->textbuf);
+ filter->textbuf = g_value_dup_string (value);
+ break;
+ case PROP_XPOS:
+ filter->xpos = g_value_get_int (value);
+ break;
+ case PROP_YPOS:
+ filter->ypos = g_value_get_int (value);
+ break;
+ case PROP_THICKNESS:
+ filter->thickness = g_value_get_int (value);
+ break;
+
+ case PROP_COLOR_R:
+ filter->colorR = g_value_get_int (value);
+ break;
+ case PROP_COLOR_G:
+ filter->colorG = g_value_get_int (value);
+ break;
+ case PROP_COLOR_B:
+ filter->colorB = g_value_get_int (value);
+ break;
+
+ case PROP_HEIGHT:
+ filter->height = g_value_get_double (value);
+ break;
+ case PROP_WIDTH:
+ filter->width = g_value_get_double (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_opencv_text_overlay_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstOpencvTextOverlay *filter = GST_OPENCV_TEXT_OVERLAY (object);
+
+ switch (prop_id) {
+ case PROP_TEXT:
+ g_value_set_string (value, filter->textbuf);
+ break;
+ case PROP_XPOS:
+ g_value_set_int (value, filter->xpos);
+ break;
+ case PROP_YPOS:
+ g_value_set_int (value, filter->ypos);
+ break;
+ case PROP_THICKNESS:
+ g_value_set_int (value, filter->thickness);
+ break;
+ case PROP_COLOR_R:
+ g_value_set_int (value, filter->colorR);
+ break;
+ case PROP_COLOR_G:
+ g_value_set_int (value, filter->colorG);
+ break;
+ case PROP_COLOR_B:
+ g_value_set_int (value, filter->colorB);
+ break;
+ case PROP_HEIGHT:
+ g_value_set_double (value, filter->height);
+ break;
+ case PROP_WIDTH:
+ g_value_set_double (value, filter->width);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+/* GstElement vmethod implementations */
+
+/* this function handles the link with other elements */
+static gboolean
+gst_opencv_text_overlay_set_caps (GstPad * pad, GstCaps * caps)
+{
+ GstOpencvTextOverlay *filter;
+ GstPad *otherpad;
+
+ gint width, height;
+ GstStructure *structure;
+
+ filter = GST_OPENCV_TEXT_OVERLAY (gst_pad_get_parent (pad));
+
+ structure = gst_caps_get_structure (caps, 0);
+ gst_structure_get_int (structure, "width", &width);
+ gst_structure_get_int (structure, "height", &height);
+
+ filter->cvImage = cvCreateImage (cvSize (width, height), IPL_DEPTH_8U, 3);
+ filter->cvStorage = cvCreateMemStorage (0);
+
+ otherpad = (pad == filter->srcpad) ? filter->sinkpad : filter->srcpad;
+ gst_object_unref (filter);
+
+ return gst_pad_set_caps (otherpad, caps);
+}
+
+/* chain function
+ * this function does the actual processing
+ */
+static GstFlowReturn
+gst_opencv_text_overlay_chain (GstPad * pad, GstBuffer * buf)
+{
+ GstOpencvTextOverlay *filter;
+
+ filter = GST_OPENCV_TEXT_OVERLAY (GST_OBJECT_PARENT (pad));
+
+ filter->cvImage->imageData = (char *) GST_BUFFER_DATA (buf);
+
+ cvInitFont (&(filter->font), CV_FONT_VECTOR0, filter->width, filter->height,
+ 0, filter->thickness, 0);
+
+ buf = gst_buffer_make_writable (buf);
+ cvPutText (filter->cvImage, filter->textbuf, cvPoint (filter->xpos,
+ filter->ypos), &(filter->font), cvScalar (filter->colorR,
+ filter->colorG, filter->colorB, 0));
+
+ return gst_pad_push (filter->srcpad, buf);
+}
+
+
+/* entry point to initialize the plug-in
+ * initialize the plug-in itself
+ * register the element factories and other features
+ */
+gboolean
+gst_opencv_text_overlay_plugin_init (GstPlugin * plugin)
+{
+ /* debug category for fltering log messages
+ *
+ * exchange the string 'Template opencvtextoverlay' with your description
+ */
+ GST_DEBUG_CATEGORY_INIT (gst_opencv_text_overlay_debug, "opencvtextoverlay",
+ 0, "Template opencvtextoverlay");
+
+ return gst_element_register (plugin, "opencvtextoverlay", GST_RANK_NONE,
+ GST_TYPE_OPENCV_TEXT_OVERLAY);
+}
--- /dev/null
+/*
+ * GStreamer
+ * Copyright (C) 2005 Thomas Vander Stichele <thomas@apestaart.org>
+ * Copyright (C) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
+ * Copyright (C) 2010 Sreerenj Balachandran <bsreerenj@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * 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_OPENCV_TEXT_OVERLAY_H__
+#define __GST_OPENCV_TEXT_OVERLAY_H__
+
+#include <gst/gst.h>
+#include <cv.h>
+#include <cvaux.h>
+#include <highgui.h>
+
+G_BEGIN_DECLS
+
+/* #defines don't like whitespacey bits */
+#define GST_TYPE_OPENCV_TEXT_OVERLAY \
+ (gst_opencv_text_overlay_get_type())
+#define GST_OPENCV_TEXT_OVERLAY(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OPENCV_TEXT_OVERLAY,GstOpencvTextOverlay))
+#define GST_OPECV_TEXT_OVERLAY_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OPECV_TEXT_OVERLAY,GstOpencvTextOverlayClass))
+#define GST_IS_OPENCV_TEXT_OVERLAY(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OPENCV_TEXT_OVERLAY))
+#define GST_IS_OPENCV_TEXT_OVERLAY_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OPENCV_TEXT_OVERLAY))
+
+typedef struct _GstOpencvTextOverlay GstOpencvTextOverlay;
+typedef struct _GstOpencvTextOverlayClass GstOpencvTextOverlayClass;
+
+struct _GstOpencvTextOverlay
+{
+ GstElement element;
+
+ GstPad *sinkpad, *srcpad;
+
+ IplImage *cvImage;
+ CvMemStorage *cvStorage;
+ CvFont font;
+
+ gint xpos;
+ gint ypos;
+ gint thickness;
+ gint colorR,colorG,colorB;
+ gdouble height;
+ gdouble width;
+ gchar *textbuf;
+
+};
+
+struct _GstOpencvTextOverlayClass
+{
+ GstElementClass parent_class;
+};
+
+GType gst_opencv_text_overlay_get_type (void);
+gboolean gst_opencv_text_overlay_plugin_init (GstPlugin * plugin);
+
+G_END_DECLS
+
+#endif /* __GST_OPENCV_TEXT_OVERLAY_H__ */
+++ /dev/null
-/*
- * GStreamer
- * Copyright (C) 2005 Thomas Vander Stichele <thomas@apestaart.org>
- * Copyright (C) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
- * Copyright (C) 2010 Sreerenj Balachandran <bsreerenj@gmail.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Alternatively, the contents of this file may be used under the
- * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
- * which case the following provisions apply instead of the ones
- * mentioned above:
- *
- * 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-textwrite
- *
- * FIXME:Describe textwrite here.
- *
- * <refsect2>
- * <title>Example launch line</title>
- * |[
- * gst-launch -v -m fakesrc ! textwrite ! fakesink silent=TRUE
- * ]|
- * </refsect2>
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <gst/gst.h>
-
-#include "gstopencvutils.h"
-#include "gsttextwrite.h"
-
-GST_DEBUG_CATEGORY_STATIC (gst_textwrite_debug);
-#define GST_CAT_DEFAULT gst_textwrite_debug
-#define DEFAULT_PROP_TEXT ""
-#define DEFAULT_PROP_WIDTH 1
-#define DEFAULT_PROP_HEIGHT 1
-#define DEFAULT_PROP_XPOS 50
-#define DEFAULT_PROP_YPOS 50
-#define DEFAULT_PROP_THICKNESS 2
-#define DEFAULT_PROP_COLOR 0
-
-
-/* Filter signals and args */
-enum
-{
- /* FILL ME */
- LAST_SIGNAL
-};
-#define DEFAULT_WIDTH 1.0
-#define DEFAULT_HEIGHT 1.0
-enum
-{
- PROP_0,
- PROP_XPOS,
- PROP_YPOS,
- PROP_THICKNESS,
- PROP_COLOR_R,
- PROP_COLOR_G,
- PROP_COLOR_B,
- PROP_TEXT,
- PROP_HEIGHT,
- PROP_WIDTH
-};
-
-/* the capabilities of the inputs and outputs.
- *
- * describe the real formats here.
- */
-static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB)
- );
-
-static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB)
- );
-
-GST_BOILERPLATE (Gsttextwrite, gst_textwrite, GstElement, GST_TYPE_ELEMENT);
-
-static void gst_textwrite_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_textwrite_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-
-static gboolean gst_textwrite_set_caps (GstPad * pad, GstCaps * caps);
-static GstFlowReturn gst_textwrite_chain (GstPad * pad, GstBuffer * buf);
-
-
-
-/* Clean up */
-static void
-gst_textwrite_finalize (GObject * obj)
-{
- Gsttextwrite *filter = GST_textwrite (obj);
-
- if (filter->cvImage) {
- cvReleaseImage (&filter->cvImage);
- }
-
- G_OBJECT_CLASS (parent_class)->finalize (obj);
-}
-
-
-
-/* GObject vmethod implementations */
-
-static void
-gst_textwrite_base_init (gpointer gclass)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
-
- gst_element_class_set_details_simple (element_class,
- "textwrite",
- "Filter/Effect/Video",
- "Performs text writing to the video", "sreerenj<bsreerenj@gmail.com>");
-
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&src_factory));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&sink_factory));
-}
-
-/* initialize the textwrite's class */
-static void
-gst_textwrite_class_init (GsttextwriteClass * klass)
-{
- GObjectClass *gobject_class;
-
- gobject_class = (GObjectClass *) klass;
-
- parent_class = g_type_class_peek_parent (klass);
- gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_textwrite_finalize);
-
- gobject_class->set_property = gst_textwrite_set_property;
- gobject_class->get_property = gst_textwrite_get_property;
-
-
- g_object_class_install_property (gobject_class, PROP_TEXT,
- g_param_spec_string ("text", "text",
- "Text to be display.", DEFAULT_PROP_TEXT,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (gobject_class, PROP_XPOS,
- g_param_spec_int ("xpos", "horizontal position",
- "Sets the Horizontal position", 0, G_MAXINT,
- DEFAULT_PROP_XPOS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (gobject_class, PROP_YPOS,
- g_param_spec_int ("ypos", "vertical position",
- "Sets the Vertical position", 0, G_MAXINT,
- DEFAULT_PROP_YPOS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (gobject_class, PROP_THICKNESS,
- g_param_spec_int ("thickness", "font thickness",
- "Sets the Thickness of Font", 0, G_MAXINT,
- DEFAULT_PROP_THICKNESS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (gobject_class, PROP_COLOR_R,
- g_param_spec_int ("colorR", "color -Red ",
- "Sets the color -R", 0, 255,
- DEFAULT_PROP_COLOR, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (gobject_class, PROP_COLOR_G,
- g_param_spec_int ("colorG", "color -Green",
- "Sets the color -G", 0, 255,
- DEFAULT_PROP_COLOR, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (gobject_class, PROP_COLOR_B,
- g_param_spec_int ("colorB", "color -Blue",
- "Sets the color -B", 0, 255,
- DEFAULT_PROP_COLOR, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-
-
- g_object_class_install_property (gobject_class, PROP_HEIGHT,
- g_param_spec_double ("height", "Height",
- "Sets the height of fonts", 1.0, 5.0,
- DEFAULT_HEIGHT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (gobject_class, PROP_WIDTH,
- g_param_spec_double ("width", "Width",
- "Sets the width of fonts", 1.0, 5.0,
- DEFAULT_WIDTH, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-}
-
-/* initialize the new element
- * instantiate pads and add them to element
- * set pad calback functions
- * initialize instance structure
- */
-static void
-gst_textwrite_init (Gsttextwrite * filter, GsttextwriteClass * gclass)
-{
- filter->sinkpad = gst_pad_new_from_static_template (&sink_factory, "sink");
- gst_pad_set_setcaps_function (filter->sinkpad,
- GST_DEBUG_FUNCPTR (gst_textwrite_set_caps));
- gst_pad_set_getcaps_function (filter->sinkpad,
- GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
- gst_pad_set_chain_function (filter->sinkpad,
- GST_DEBUG_FUNCPTR (gst_textwrite_chain));
-
- filter->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
- gst_pad_set_getcaps_function (filter->srcpad,
- GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
-
- gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
- gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
- filter->textbuf = g_strdup (DEFAULT_PROP_TEXT);
- filter->width = DEFAULT_PROP_WIDTH;
- filter->height = DEFAULT_PROP_HEIGHT;
- filter->xpos = DEFAULT_PROP_XPOS;
- filter->ypos = DEFAULT_PROP_YPOS;
- filter->thickness = DEFAULT_PROP_THICKNESS;
- filter->colorR = DEFAULT_PROP_COLOR;
- filter->colorG = DEFAULT_PROP_COLOR;
- filter->colorB = DEFAULT_PROP_COLOR;
-
-}
-
-static void
-gst_textwrite_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- Gsttextwrite *filter = GST_textwrite (object);
-
- switch (prop_id) {
- case PROP_TEXT:
- g_free (filter->textbuf);
- filter->textbuf = g_value_dup_string (value);
- break;
- case PROP_XPOS:
- filter->xpos = g_value_get_int (value);
- break;
- case PROP_YPOS:
- filter->ypos = g_value_get_int (value);
- break;
- case PROP_THICKNESS:
- filter->thickness = g_value_get_int (value);
- break;
-
- case PROP_COLOR_R:
- filter->colorR = g_value_get_int (value);
- break;
- case PROP_COLOR_G:
- filter->colorG = g_value_get_int (value);
- break;
- case PROP_COLOR_B:
- filter->colorB = g_value_get_int (value);
- break;
-
- case PROP_HEIGHT:
- filter->height = g_value_get_double (value);
- break;
- case PROP_WIDTH:
- filter->width = g_value_get_double (value);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_textwrite_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec)
-{
- Gsttextwrite *filter = GST_textwrite (object);
-
- switch (prop_id) {
- case PROP_TEXT:
- g_value_set_string (value, filter->textbuf);
- break;
- case PROP_XPOS:
- g_value_set_int (value, filter->xpos);
- break;
- case PROP_YPOS:
- g_value_set_int (value, filter->ypos);
- break;
- case PROP_THICKNESS:
- g_value_set_int (value, filter->thickness);
- break;
- case PROP_COLOR_R:
- g_value_set_int (value, filter->colorR);
- break;
- case PROP_COLOR_G:
- g_value_set_int (value, filter->colorG);
- break;
- case PROP_COLOR_B:
- g_value_set_int (value, filter->colorB);
- break;
- case PROP_HEIGHT:
- g_value_set_double (value, filter->height);
- break;
- case PROP_WIDTH:
- g_value_set_double (value, filter->width);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-/* GstElement vmethod implementations */
-
-/* this function handles the link with other elements */
-static gboolean
-gst_textwrite_set_caps (GstPad * pad, GstCaps * caps)
-{
- Gsttextwrite *filter;
- GstPad *otherpad;
-
- gint width, height;
- GstStructure *structure;
-
- filter = GST_textwrite (gst_pad_get_parent (pad));
-
- structure = gst_caps_get_structure (caps, 0);
- gst_structure_get_int (structure, "width", &width);
- gst_structure_get_int (structure, "height", &height);
-
- filter->cvImage = cvCreateImage (cvSize (width, height), IPL_DEPTH_8U, 3);
- filter->cvStorage = cvCreateMemStorage (0);
-
- otherpad = (pad == filter->srcpad) ? filter->sinkpad : filter->srcpad;
- gst_object_unref (filter);
-
- return gst_pad_set_caps (otherpad, caps);
-}
-
-/* chain function
- * this function does the actual processing
- */
-static GstFlowReturn
-gst_textwrite_chain (GstPad * pad, GstBuffer * buf)
-{
- Gsttextwrite *filter;
-
- filter = GST_textwrite (GST_OBJECT_PARENT (pad));
-
- filter->cvImage->imageData = (char *) GST_BUFFER_DATA (buf);
-
- cvInitFont (&(filter->font), CV_FONT_VECTOR0, filter->width, filter->height,
- 0, filter->thickness, 0);
-
- buf = gst_buffer_make_writable (buf);
- cvPutText (filter->cvImage, filter->textbuf, cvPoint (filter->xpos,
- filter->ypos), &(filter->font), cvScalar (filter->colorR,
- filter->colorG, filter->colorB, 0));
-
- return gst_pad_push (filter->srcpad, buf);
-}
-
-
-/* entry point to initialize the plug-in
- * initialize the plug-in itself
- * register the element factories and other features
- */
-gboolean
-gst_textwrite_plugin_init (GstPlugin * plugin)
-{
- /* debug category for fltering log messages
- *
- * exchange the string 'Template textwrite' with your description
- */
- GST_DEBUG_CATEGORY_INIT (gst_textwrite_debug, "textwrite",
- 0, "Template textwrite");
-
- return gst_element_register (plugin, "textwrite", GST_RANK_NONE,
- GST_TYPE_textwrite);
-}
+++ /dev/null
-/*
- * GStreamer
- * Copyright (C) 2005 Thomas Vander Stichele <thomas@apestaart.org>
- * Copyright (C) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
- * Copyright (C) 2010 root <<user@hostname.org>>m
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Alternatively, the contents of this file may be used under the
- * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
- * which case the following provisions apply instead of the ones
- * mentioned above:
- *
- * 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_textwrite_H__
-#define __GST_textwrite_H__
-
-#include <gst/gst.h>
-#include <cv.h>
-#include <cvaux.h>
-#include <highgui.h>
-G_BEGIN_DECLS
-
-/* #defines don't like whitespacey bits */
-#define GST_TYPE_textwrite \
- (gst_textwrite_get_type())
-#define GST_textwrite(obj) \
- (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_textwrite,Gsttextwrite))
-#define GST_textwrite_CLASS(klass) \
- (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_textwrite,GsttextwriteClass))
-#define GST_IS_textwrite(obj) \
- (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_textwrite))
-#define GST_IS_textwrite_CLASS(klass) \
- (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_textwrite))
-
-typedef struct _Gsttextwrite Gsttextwrite;
-typedef struct _GsttextwriteClass GsttextwriteClass;
-
-struct _Gsttextwrite
-{
- GstElement element;
-
- GstPad *sinkpad, *srcpad;
-
-
- IplImage *cvImage;
- CvMemStorage *cvStorage;
- CvFont font;
-
- gint xpos;
- gint ypos;
- gint thickness;
- gint colorR,colorG,colorB;
- gdouble height;
- gdouble width;
- gchar *textbuf;
-
-};
-
-struct _GsttextwriteClass
-{
- GstElementClass parent_class;
-};
-
-GType gst_textwrite_get_type (void);
-gboolean gst_textwrite_plugin_init (GstPlugin * plugin);
-
-G_END_DECLS
-
-#endif /* __GST_textwrite_H__ */
projects / platform / upstream / gstreamer.git / commitdiff