mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-18 15:51:11 +00:00
b358897a3b
`parse_state` sounds a bit weird and `parse_modifier_state` is clearer. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2087>
547 lines
16 KiB
C
547 lines
16 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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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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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#include "gstnavigationtest.h"
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#include <string.h>
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#include <math.h>
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#include <gst/video/video.h>
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#ifdef _MSC_VER
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#define rint(x) (floor((x)+0.5))
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#endif
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GST_DEBUG_CATEGORY_STATIC (navigationtest_debug);
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#define GST_CAT_DEFAULT navigationtest_debug
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static GstStaticPadTemplate gst_navigationtest_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("I420"))
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);
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static GstStaticPadTemplate gst_navigationtest_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("I420"))
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);
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#define gst_navigationtest_parent_class parent_class
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G_DEFINE_TYPE (GstNavigationtest, gst_navigationtest, GST_TYPE_VIDEO_FILTER);
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GST_ELEMENT_REGISTER_DEFINE (navigationtest, "navigationtest", GST_RANK_NONE,
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GST_TYPE_NAVIGATIONTEST);
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enum
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{
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PROP_DISPLAY_MOUSE = 1,
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PROP_DISPLAY_TOUCH,
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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 *navtest;
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g_return_if_fail (GST_IS_NAVIGATIONTEST (object));
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navtest = GST_NAVIGATIONTEST (object);
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switch (prop_id) {
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case PROP_DISPLAY_MOUSE:
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navtest->display_mouse = g_value_get_boolean (value);
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break;
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case PROP_DISPLAY_TOUCH:
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navtest->display_touch = g_value_get_boolean (value);
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break;
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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 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 *navtest;
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g_return_if_fail (GST_IS_NAVIGATIONTEST (object));
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navtest = GST_NAVIGATIONTEST (object);
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switch (prop_id) {
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case PROP_DISPLAY_MOUSE:
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g_value_set_boolean (value, navtest->display_mouse);
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break;
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case PROP_DISPLAY_TOUCH:
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g_value_set_boolean (value, navtest->display_mouse);
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break;
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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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gst_navigationtest_src_event (GstBaseTransform * trans, GstEvent * event)
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{
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GstVideoInfo *info;
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GstNavigationtest *navtest;
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GstNavigationEventType type;
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navtest = GST_NAVIGATIONTEST (trans);
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info = &GST_VIDEO_FILTER (trans)->in_info;
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_NAVIGATION:
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{
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gint fps_n, fps_d;
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fps_n = GST_VIDEO_INFO_FPS_N (info);
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fps_d = GST_VIDEO_INFO_FPS_D (info);
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type = gst_navigation_event_get_type (event);
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switch (type) {
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case GST_NAVIGATION_EVENT_MOUSE_MOVE:{
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gst_navigation_event_get_coordinates (event, &navtest->mousex,
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&navtest->mousey);
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GST_DEBUG ("received mouse-move event at %f,%f", navtest->mousex,
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navtest->mousey);
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gst_navigation_event_parse_modifier_state (event,
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&navtest->modifiers);
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break;
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}
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case GST_NAVIGATION_EVENT_MOUSE_BUTTON_PRESS:{
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ButtonClick *click = g_new (ButtonClick, 1);
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gst_navigation_event_parse_mouse_button_event (event, &click->button,
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&click->x, &click->y);
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GST_DEBUG ("received mouse-button-press for button %d at %f,%f",
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click->button, click->x, click->y);
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click->images_left = (fps_n + fps_d - 1) / fps_d;
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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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navtest->clicks = g_slist_prepend (navtest->clicks, click);
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break;
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}
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case GST_NAVIGATION_EVENT_MOUSE_BUTTON_RELEASE:{
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ButtonClick *click = g_new (ButtonClick, 1);
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gst_navigation_event_parse_mouse_button_event (event, &click->button,
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&click->x, &click->y);
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GST_DEBUG ("received mouse-button-release for button %d at %f,%f",
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click->button, click->x, click->y);
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click->images_left = (fps_n + fps_d - 1) / fps_d;
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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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navtest->clicks = g_slist_prepend (navtest->clicks, click);
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break;
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}
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case GST_NAVIGATION_EVENT_MOUSE_SCROLL:{
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gdouble x, y, sx, sy;
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gst_navigation_event_parse_mouse_scroll_event (event, &x, &y, &sx,
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&sy);
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GST_DEBUG ("received mouse-scroll event at %f,%f with axes %f,%f", x,
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y, sx, sy);
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break;
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}
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case GST_NAVIGATION_EVENT_KEY_PRESS:
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case GST_NAVIGATION_EVENT_KEY_RELEASE:{
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const char *name;
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gst_navigation_event_parse_modifier_state (event,
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&navtest->modifiers);
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gst_navigation_event_parse_key_event (event, &name);
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GST_DEBUG ("received %s event for key \"%s\"",
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type == GST_NAVIGATION_EVENT_KEY_PRESS ? "key-press" :
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"key-release", name);
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break;
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}
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case GST_NAVIGATION_EVENT_COMMAND:{
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GstNavigationCommand command;
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const char *name;
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gst_navigation_event_parse_command (event, &command);
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switch (command) {
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case GST_NAVIGATION_COMMAND_INVALID:
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name = "invalid";
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break;
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case GST_NAVIGATION_COMMAND_MENU1:
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name = "menu1";
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break;
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case GST_NAVIGATION_COMMAND_MENU2:
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name = "menu2";
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break;
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case GST_NAVIGATION_COMMAND_MENU3:
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name = "menu3";
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break;
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case GST_NAVIGATION_COMMAND_MENU4:
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name = "menu4";
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break;
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case GST_NAVIGATION_COMMAND_MENU5:
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name = "menu5";
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break;
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case GST_NAVIGATION_COMMAND_MENU6:
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name = "menu6";
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break;
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case GST_NAVIGATION_COMMAND_MENU7:
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name = "menu7";
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break;
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case GST_NAVIGATION_COMMAND_LEFT:
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name = "left";
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break;
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case GST_NAVIGATION_COMMAND_RIGHT:
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name = "right";
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break;
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case GST_NAVIGATION_COMMAND_UP:
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name = "up";
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break;
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case GST_NAVIGATION_COMMAND_DOWN:
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name = "down";
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break;
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case GST_NAVIGATION_COMMAND_ACTIVATE:
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name = "activate";
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break;
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case GST_NAVIGATION_COMMAND_PREV_ANGLE:
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name = "prev_angle";
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break;
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case GST_NAVIGATION_COMMAND_NEXT_ANGLE:
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name = "next_angle";
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break;
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default:
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name = "unknown";
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break;
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}
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GST_DEBUG ("received \"%s\" command event", name);
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break;
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}
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case GST_NAVIGATION_EVENT_TOUCH_DOWN:
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case GST_NAVIGATION_EVENT_TOUCH_MOTION:{
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TouchPoint *point;
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point = g_new0 (TouchPoint, 1);
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gst_navigation_event_parse_touch_event (event,
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&(point->id), &(point->x), &(point->y), &(point->pressure));
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GST_DEBUG ("received %s event with id %u at %f, %f",
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(type == GST_NAVIGATION_EVENT_TOUCH_DOWN) ? "touch-down" :
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"touch-motion", point->id, point->x, point->y);
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point->images_left = (fps_n + fps_d - 1) / fps_d;
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/* black */
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point->cy = 0;
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point->cu = 0;
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point->cv = 0;
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g_mutex_lock (&navtest->touch_lock);
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navtest->touches = g_slist_prepend (navtest->touches, point);
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g_mutex_unlock (&navtest->touch_lock);
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break;
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}
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case GST_NAVIGATION_EVENT_TOUCH_UP:{
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TouchPoint *point;
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point = g_new0 (TouchPoint, 1);
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gst_navigation_event_parse_touch_up_event (event,
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&(point->id), &(point->x), &(point->y));
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GST_DEBUG ("received touch-up event with id %u at %f, %f",
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point->id, point->x, point->y);
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point->images_left = (fps_n + fps_d - 1) / fps_d;
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/* black */
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point->cy = 0;
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point->cu = 0;
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point->cv = 0;
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g_mutex_lock (&navtest->touch_lock);
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navtest->touches = g_slist_prepend (navtest->touches, point);
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g_mutex_unlock (&navtest->touch_lock);
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break;
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}
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case GST_NAVIGATION_EVENT_TOUCH_FRAME:{
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GST_DEBUG ("received touch-frame event");
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break;
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}
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case GST_NAVIGATION_EVENT_TOUCH_CANCEL:{
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GST_DEBUG ("received touch-cancel event");
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g_slist_foreach (navtest->touches, (GFunc) g_free, NULL);
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g_slist_free (navtest->touches);
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navtest->touches = NULL;
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break;
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}
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case GST_NAVIGATION_EVENT_INVALID:{
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GST_WARNING ("received invalid event");
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break;
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}
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default:{
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GST_WARNING ("received unknown event");
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break;
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}
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}
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break;
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}
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default:
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break;
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}
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return GST_BASE_TRANSFORM_CLASS (parent_class)->src_event (trans, event);
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}
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/* Useful macros */
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#define GST_VIDEO_I420_Y_ROWSTRIDE(width) (GST_ROUND_UP_4(width))
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#define GST_VIDEO_I420_U_ROWSTRIDE(width) (GST_ROUND_UP_8(width)/2)
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#define GST_VIDEO_I420_V_ROWSTRIDE(width) ((GST_ROUND_UP_8(GST_VIDEO_I420_Y_ROWSTRIDE(width)))/2)
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#define GST_VIDEO_I420_Y_OFFSET(w,h) (0)
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#define GST_VIDEO_I420_U_OFFSET(w,h) (GST_VIDEO_I420_Y_OFFSET(w,h)+(GST_VIDEO_I420_Y_ROWSTRIDE(w)*GST_ROUND_UP_2(h)))
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#define GST_VIDEO_I420_V_OFFSET(w,h) (GST_VIDEO_I420_U_OFFSET(w,h)+(GST_VIDEO_I420_U_ROWSTRIDE(w)*GST_ROUND_UP_2(h)/2))
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#define GST_VIDEO_I420_SIZE(w,h) (GST_VIDEO_I420_V_OFFSET(w,h)+(GST_VIDEO_I420_V_ROWSTRIDE(w)*GST_ROUND_UP_2(h)/2))
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static void
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draw_box_planar411 (GstVideoFrame * frame, int x, int y, int radius,
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guint8 colory, guint8 coloru, guint8 colorv)
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{
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gint width, height;
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int x1, x2, y1, y2;
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guint8 *d;
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gint stride;
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width = GST_VIDEO_FRAME_WIDTH (frame);
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height = GST_VIDEO_FRAME_HEIGHT (frame);
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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 - radius, 0);
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x2 = MIN (x + radius, width);
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y1 = MAX (y - radius, 0);
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y2 = MIN (y + radius, height);
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d = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
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stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
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for (y = y1; y < y2; y++) {
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for (x = x1; x < x2; x++) {
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d[y * stride + x] = colory;
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}
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}
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d = GST_VIDEO_FRAME_PLANE_DATA (frame, 1);
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stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 1);
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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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d[y * stride + x] = coloru;
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}
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}
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d = GST_VIDEO_FRAME_PLANE_DATA (frame, 2);
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stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 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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d[y * stride + x] = colorv;
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}
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}
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}
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static GstFlowReturn
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gst_navigationtest_transform_frame (GstVideoFilter * filter,
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GstVideoFrame * in_frame, GstVideoFrame * out_frame)
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{
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GstNavigationtest *navtest = GST_NAVIGATIONTEST (filter);
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GSList *walk;
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guint8 u = 255, v = 255;
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gst_video_frame_copy (out_frame, in_frame);
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/* Draw mouse events */
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if (navtest->display_mouse) {
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walk = navtest->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 (out_frame,
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rint (click->x), rint (click->y), 5, click->cy, click->cu, click->cv);
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if (--click->images_left < 1) {
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navtest->clicks = g_slist_remove (navtest->clicks, click);
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g_free (click);
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}
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}
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for (guint i = 0; i <= 28; i++) {
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if (navtest->modifiers & (1 << i)) {
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u /= 2;
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v /= 2;
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}
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}
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draw_box_planar411 (out_frame,
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rint (navtest->mousex), rint (navtest->mousey), 5, 128, u, v);
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}
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/* Draw touch events */
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if (navtest->display_touch) {
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g_mutex_lock (&navtest->touch_lock);
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walk = navtest->touches;
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while (walk) {
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TouchPoint *point = walk->data;
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walk = g_slist_next (walk);
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draw_box_planar411 (out_frame,
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rint (point->x), rint (point->y), 2, point->cy, point->cu, point->cv);
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if (--point->images_left < 1) {
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navtest->touches = g_slist_remove (navtest->touches, point);
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g_free (point);
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}
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}
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g_mutex_unlock (&navtest->touch_lock);
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}
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return GST_FLOW_OK;
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}
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static GstStateChangeReturn
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gst_navigationtest_change_state (GstElement * element,
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GstStateChange transition)
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{
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GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
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GstNavigationtest *navtest = GST_NAVIGATIONTEST (element);
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if (GST_ELEMENT_CLASS (parent_class)->change_state)
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ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
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switch (transition) {
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case GST_STATE_CHANGE_PAUSED_TO_READY:
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{
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g_slist_foreach (navtest->clicks, (GFunc) g_free, NULL);
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g_slist_free (navtest->clicks);
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navtest->clicks = NULL;
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g_slist_foreach (navtest->touches, (GFunc) g_free, NULL);
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g_slist_free (navtest->touches);
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navtest->touches = NULL;
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g_mutex_clear (&navtest->touch_lock);
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break;
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}
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case GST_STATE_CHANGE_READY_TO_PAUSED:
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{
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g_mutex_init (&navtest->touch_lock);
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break;
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}
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default:
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break;
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}
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return ret;
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}
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static void
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gst_navigationtest_class_init (GstNavigationtestClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *element_class;
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GstBaseTransformClass *trans_class;
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GstVideoFilterClass *vfilter_class;
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gobject_class = (GObjectClass *) klass;
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element_class = (GstElementClass *) klass;
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trans_class = (GstBaseTransformClass *) klass;
|
|
vfilter_class = (GstVideoFilterClass *) klass;
|
|
|
|
gobject_class->set_property = gst_navigationtest_set_property;
|
|
gobject_class->get_property = gst_navigationtest_get_property;
|
|
|
|
/**
|
|
* navigationtest:display-mouse:
|
|
*
|
|
* Toggles display of mouse events.
|
|
*
|
|
* Since: 1.22
|
|
*/
|
|
g_object_class_install_property (gobject_class, PROP_DISPLAY_MOUSE,
|
|
g_param_spec_boolean ("display-mouse", "Display mouse",
|
|
"Toggles display of mouse events", TRUE, G_PARAM_READWRITE));
|
|
|
|
/**
|
|
* navigationtest:display-touch:
|
|
*
|
|
* Toggles display of touch events.
|
|
*
|
|
* Since: 1.22
|
|
*/
|
|
g_object_class_install_property (gobject_class, PROP_DISPLAY_TOUCH,
|
|
g_param_spec_boolean ("display-touch", "Display touch",
|
|
"Toggles display of touchscreen events", TRUE, G_PARAM_READWRITE));
|
|
|
|
element_class->change_state =
|
|
GST_DEBUG_FUNCPTR (gst_navigationtest_change_state);
|
|
|
|
gst_element_class_set_static_metadata (element_class, "Video navigation test",
|
|
"Filter/Effect/Video",
|
|
"Handle navigation events showing black squares following "
|
|
"mouse pointer and touch points", "David Schleef <ds@schleef.org>");
|
|
|
|
gst_element_class_add_static_pad_template (element_class,
|
|
&gst_navigationtest_sink_template);
|
|
gst_element_class_add_static_pad_template (element_class,
|
|
&gst_navigationtest_src_template);
|
|
|
|
trans_class->src_event = GST_DEBUG_FUNCPTR (gst_navigationtest_src_event);
|
|
|
|
vfilter_class->transform_frame =
|
|
GST_DEBUG_FUNCPTR (gst_navigationtest_transform_frame);
|
|
}
|
|
|
|
static void
|
|
gst_navigationtest_init (GstNavigationtest * navtest)
|
|
{
|
|
navtest->mousex = -1;
|
|
navtest->mousey = -1;
|
|
navtest->display_mouse = TRUE;
|
|
navtest->display_touch = TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
GST_DEBUG_CATEGORY_INIT (navigationtest_debug, "navigationtest", 0,
|
|
"navigationtest");
|
|
|
|
return GST_ELEMENT_REGISTER (navigationtest, plugin);
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
navigationtest,
|
|
"Template for a video filter",
|
|
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
|