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Original commit message from CVS: 2005-07-05 Andy Wingo <wingo@pobox.com> * Way, way, way too many files: Remove crack comment from the 2000 era.
377 lines
10 KiB
C
377 lines
10 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2003> David Schleef <ds@schleef.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* This file was (probably) generated from gstnavigationtest.c,
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* gstnavigationtest.c,v 1.7 2003/11/08 02:48:59 dschleef Exp
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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/*#define DEBUG_ENABLED */
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#include <gstnavigationtest.h>
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#include <string.h>
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#include <math.h>
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/* GstNavigationtest signals and args */
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enum
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{
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/* FILL ME */
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LAST_SIGNAL
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};
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enum
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{
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ARG_0
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/* FILL ME */
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};
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typedef struct
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{
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double x;
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double y;
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gint images_left;
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guint8 cy, cu, cv;
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} ButtonClick;
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static void gst_navigationtest_base_init (gpointer g_class);
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static void gst_navigationtest_class_init (gpointer g_class,
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gpointer class_data);
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static void gst_navigationtest_init (GTypeInstance * instance,
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gpointer g_class);
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static gboolean gst_navigationtest_handle_src_event (GstPad * pad,
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GstEvent * event);
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static void gst_navigationtest_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_navigationtest_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstElementStateReturn
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gst_navigationtest_change_state (GstElement * element);
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static void gst_navigationtest_planar411 (GstVideofilter * videofilter,
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void *dest, void *src);
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static void gst_navigationtest_setup (GstVideofilter * videofilter);
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static GstVideofilterClass *parent_class = NULL;
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GType
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gst_navigationtest_get_type (void)
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{
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static GType navigationtest_type = 0;
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if (!navigationtest_type) {
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static const GTypeInfo navigationtest_info = {
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sizeof (GstNavigationtestClass),
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gst_navigationtest_base_init,
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NULL,
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gst_navigationtest_class_init,
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NULL,
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NULL,
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sizeof (GstNavigationtest),
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0,
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gst_navigationtest_init,
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};
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navigationtest_type = g_type_register_static (GST_TYPE_VIDEOFILTER,
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"GstNavigationtest", &navigationtest_info, 0);
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}
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return navigationtest_type;
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}
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static GstVideofilterFormat gst_navigationtest_formats[] = {
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{"I420", 12, gst_navigationtest_planar411,},
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};
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static void
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gst_navigationtest_base_init (gpointer g_class)
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{
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static GstElementDetails navigationtest_details =
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GST_ELEMENT_DETAILS ("Video Filter Template",
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"Filter/Video",
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"Template for a video filter",
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"David Schleef <ds@schleef.org>");
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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GstVideofilterClass *videofilter_class = GST_VIDEOFILTER_CLASS (g_class);
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int i;
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gst_element_class_set_details (element_class, &navigationtest_details);
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for (i = 0; i < G_N_ELEMENTS (gst_navigationtest_formats); i++) {
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gst_videofilter_class_add_format (videofilter_class,
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gst_navigationtest_formats + i);
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}
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gst_videofilter_class_add_pad_templates (GST_VIDEOFILTER_CLASS (g_class));
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}
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static void
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gst_navigationtest_class_init (gpointer g_class, gpointer class_data)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (g_class);
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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GstVideofilterClass *videofilter_class = GST_VIDEOFILTER_CLASS (g_class);
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parent_class = g_type_class_peek_parent (g_class);
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gobject_class->set_property = gst_navigationtest_set_property;
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gobject_class->get_property = gst_navigationtest_get_property;
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element_class->change_state = gst_navigationtest_change_state;
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videofilter_class->setup = gst_navigationtest_setup;
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}
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static void
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gst_navigationtest_init (GTypeInstance * instance, gpointer g_class)
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{
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GstNavigationtest *navigationtest = GST_NAVIGATIONTEST (instance);
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GstVideofilter *videofilter;
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GST_DEBUG ("gst_navigationtest_init");
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videofilter = GST_VIDEOFILTER (navigationtest);
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gst_pad_set_event_function (videofilter->srcpad,
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gst_navigationtest_handle_src_event);
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navigationtest->x = -1;
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navigationtest->y = -1;
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}
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static gboolean
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gst_navigationtest_handle_src_event (GstPad * pad, GstEvent * event)
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{
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GstNavigationtest *navigationtest;
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const gchar *type;
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navigationtest = GST_NAVIGATIONTEST (gst_pad_get_parent (pad));
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_NAVIGATION:
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type = gst_structure_get_string (event->event_data.structure.structure,
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"event");
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if (g_str_equal (type, "mouse-move")) {
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gst_structure_get_double (event->event_data.structure.structure,
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"pointer_x", &navigationtest->x);
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gst_structure_get_double (event->event_data.structure.structure,
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"pointer_y", &navigationtest->y);
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} else if (g_str_equal (type, "mouse-button-press")) {
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ButtonClick *click = g_new (ButtonClick, 1);
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gst_structure_get_double (event->event_data.structure.structure,
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"pointer_x", &click->x);
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gst_structure_get_double (event->event_data.structure.structure,
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"pointer_y", &click->y);
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click->images_left = ceil (GST_VIDEOFILTER (navigationtest)->framerate);
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/* green */
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click->cy = 150;
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click->cu = 46;
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click->cv = 21;
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navigationtest->clicks =
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g_slist_prepend (navigationtest->clicks, click);
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} else if (g_str_equal (type, "mouse-button-release")) {
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ButtonClick *click = g_new (ButtonClick, 1);
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gst_structure_get_double (event->event_data.structure.structure,
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"pointer_x", &click->x);
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gst_structure_get_double (event->event_data.structure.structure,
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"pointer_y", &click->y);
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click->images_left = ceil (GST_VIDEOFILTER (navigationtest)->framerate);
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/* red */
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click->cy = 76;
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click->cu = 85;
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click->cv = 255;
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navigationtest->clicks =
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g_slist_prepend (navigationtest->clicks, click);
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}
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break;
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default:
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break;
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}
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return gst_pad_event_default (pad, event);
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}
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static void
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gst_navigationtest_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstNavigationtest *src;
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g_return_if_fail (GST_IS_NAVIGATIONTEST (object));
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src = GST_NAVIGATIONTEST (object);
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GST_DEBUG ("gst_navigationtest_set_property");
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switch (prop_id) {
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#if 0
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case ARG_METHOD:
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src->method = g_value_get_enum (value);
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break;
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#endif
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default:
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break;
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}
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}
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static void
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gst_navigationtest_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstNavigationtest *src;
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g_return_if_fail (GST_IS_NAVIGATIONTEST (object));
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src = GST_NAVIGATIONTEST (object);
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switch (prop_id) {
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#if 0
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case ARG_METHOD:
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g_value_set_enum (value, src->method);
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break;
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#endif
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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if (!gst_library_load ("gstvideofilter"))
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return FALSE;
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return gst_element_register (plugin, "navigationtest", GST_RANK_NONE,
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GST_TYPE_NAVIGATIONTEST);
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}
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GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
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GST_VERSION_MINOR,
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"navigationtest",
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"Template for a video filter",
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plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN)
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static void gst_navigationtest_setup (GstVideofilter * videofilter)
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{
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GstNavigationtest *navigationtest;
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g_return_if_fail (GST_IS_NAVIGATIONTEST (videofilter));
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navigationtest = GST_NAVIGATIONTEST (videofilter);
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/* if any setup needs to be done, do it here */
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}
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static void
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draw_box_planar411 (guint8 * dest, int width, int height, int x, int y,
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guint8 colory, guint8 coloru, guint8 colorv)
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{
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int x1, x2, y1, y2;
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if (x < 0 || y < 0 || x >= width || y >= height)
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return;
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x1 = MAX (x - 5, 0);
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x2 = MIN (x + 5, width);
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y1 = MAX (y - 5, 0);
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y2 = MIN (y + 5, height);
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for (y = y1; y < y2; y++) {
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for (x = x1; x < x2; x++) {
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((guint8 *) dest)[y * width + x] = colory;
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}
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}
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dest += height * width;
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width /= 2;
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height /= 2;
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x1 /= 2;
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x2 /= 2;
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y1 /= 2;
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y2 /= 2;
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for (y = y1; y < y2; y++) {
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for (x = x1; x < x2; x++) {
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((guint8 *) dest)[y * width + x] = coloru;
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}
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}
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dest += height * width;
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for (y = y1; y < y2; y++) {
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for (x = x1; x < x2; x++) {
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((guint8 *) dest)[y * width + x] = colorv;
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}
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}
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}
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static void
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gst_navigationtest_planar411 (GstVideofilter * videofilter,
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void *dest, void *src)
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{
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GstNavigationtest *navigationtest;
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int width = gst_videofilter_get_input_width (videofilter);
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int height = gst_videofilter_get_input_height (videofilter);
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GSList *walk;
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g_return_if_fail (GST_IS_NAVIGATIONTEST (videofilter));
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navigationtest = GST_NAVIGATIONTEST (videofilter);
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/* do something interesting here. This simply copies the source
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* to the destination. */
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memcpy (dest, src, width * height + (width / 2) * (height / 2) * 2);
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walk = navigationtest->clicks;
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while (walk) {
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ButtonClick *click = walk->data;
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walk = g_slist_next (walk);
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draw_box_planar411 (dest, width, height, rint (click->x),
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rint (click->y), click->cy, click->cu, click->cv);
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if (--click->images_left < 1) {
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navigationtest->clicks = g_slist_remove (navigationtest->clicks, click);
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g_free (click);
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}
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}
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draw_box_planar411 (dest, width, height, rint (navigationtest->x),
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rint (navigationtest->y), 0, 128, 128);
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}
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static GstElementStateReturn
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gst_navigationtest_change_state (GstElement * element)
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{
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GstNavigationtest *navigation = GST_NAVIGATIONTEST (element);
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switch (GST_STATE_TRANSITION (element)) {
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case GST_STATE_PAUSED_TO_READY:
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while (navigation->clicks) {
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g_free (navigation->clicks->data);
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navigation->clicks =
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g_slist_remove (navigation->clicks, navigation->clicks->data);
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}
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break;
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}
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if (GST_ELEMENT_CLASS (parent_class)->change_state)
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return GST_ELEMENT_CLASS (parent_class)->change_state (element);
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return GST_STATE_SUCCESS;
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}
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