gstreamer/subprojects/gst-plugins-good/gst/debugutils/gstnavigationtest.c
Thibault Saunier b358897a3b navigation: Rename parse_state to parse_modifier_state
`parse_state` sounds a bit weird and `parse_modifier_state` is clearer.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2087>
2022-04-01 06:38:43 +00:00

547 lines
16 KiB
C

/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2003> David Schleef <ds@schleef.org>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstnavigationtest.h"
#include <string.h>
#include <math.h>
#include <gst/video/video.h>
#ifdef _MSC_VER
#define rint(x) (floor((x)+0.5))
#endif
GST_DEBUG_CATEGORY_STATIC (navigationtest_debug);
#define GST_CAT_DEFAULT navigationtest_debug
static GstStaticPadTemplate gst_navigationtest_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("I420"))
);
static GstStaticPadTemplate gst_navigationtest_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("I420"))
);
#define gst_navigationtest_parent_class parent_class
G_DEFINE_TYPE (GstNavigationtest, gst_navigationtest, GST_TYPE_VIDEO_FILTER);
GST_ELEMENT_REGISTER_DEFINE (navigationtest, "navigationtest", GST_RANK_NONE,
GST_TYPE_NAVIGATIONTEST);
enum
{
PROP_DISPLAY_MOUSE = 1,
PROP_DISPLAY_TOUCH,
};
static void
gst_navigationtest_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstNavigationtest *navtest;
g_return_if_fail (GST_IS_NAVIGATIONTEST (object));
navtest = GST_NAVIGATIONTEST (object);
switch (prop_id) {
case PROP_DISPLAY_MOUSE:
navtest->display_mouse = g_value_get_boolean (value);
break;
case PROP_DISPLAY_TOUCH:
navtest->display_touch = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_navigationtest_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstNavigationtest *navtest;
g_return_if_fail (GST_IS_NAVIGATIONTEST (object));
navtest = GST_NAVIGATIONTEST (object);
switch (prop_id) {
case PROP_DISPLAY_MOUSE:
g_value_set_boolean (value, navtest->display_mouse);
break;
case PROP_DISPLAY_TOUCH:
g_value_set_boolean (value, navtest->display_mouse);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_navigationtest_src_event (GstBaseTransform * trans, GstEvent * event)
{
GstVideoInfo *info;
GstNavigationtest *navtest;
GstNavigationEventType type;
navtest = GST_NAVIGATIONTEST (trans);
info = &GST_VIDEO_FILTER (trans)->in_info;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NAVIGATION:
{
gint fps_n, fps_d;
fps_n = GST_VIDEO_INFO_FPS_N (info);
fps_d = GST_VIDEO_INFO_FPS_D (info);
type = gst_navigation_event_get_type (event);
switch (type) {
case GST_NAVIGATION_EVENT_MOUSE_MOVE:{
gst_navigation_event_get_coordinates (event, &navtest->mousex,
&navtest->mousey);
GST_DEBUG ("received mouse-move event at %f,%f", navtest->mousex,
navtest->mousey);
gst_navigation_event_parse_modifier_state (event,
&navtest->modifiers);
break;
}
case GST_NAVIGATION_EVENT_MOUSE_BUTTON_PRESS:{
ButtonClick *click = g_new (ButtonClick, 1);
gst_navigation_event_parse_mouse_button_event (event, &click->button,
&click->x, &click->y);
GST_DEBUG ("received mouse-button-press for button %d at %f,%f",
click->button, click->x, click->y);
click->images_left = (fps_n + fps_d - 1) / fps_d;
/* green */
click->cy = 150;
click->cu = 46;
click->cv = 21;
navtest->clicks = g_slist_prepend (navtest->clicks, click);
break;
}
case GST_NAVIGATION_EVENT_MOUSE_BUTTON_RELEASE:{
ButtonClick *click = g_new (ButtonClick, 1);
gst_navigation_event_parse_mouse_button_event (event, &click->button,
&click->x, &click->y);
GST_DEBUG ("received mouse-button-release for button %d at %f,%f",
click->button, click->x, click->y);
click->images_left = (fps_n + fps_d - 1) / fps_d;
/* red */
click->cy = 76;
click->cu = 85;
click->cv = 255;
navtest->clicks = g_slist_prepend (navtest->clicks, click);
break;
}
case GST_NAVIGATION_EVENT_MOUSE_SCROLL:{
gdouble x, y, sx, sy;
gst_navigation_event_parse_mouse_scroll_event (event, &x, &y, &sx,
&sy);
GST_DEBUG ("received mouse-scroll event at %f,%f with axes %f,%f", x,
y, sx, sy);
break;
}
case GST_NAVIGATION_EVENT_KEY_PRESS:
case GST_NAVIGATION_EVENT_KEY_RELEASE:{
const char *name;
gst_navigation_event_parse_modifier_state (event,
&navtest->modifiers);
gst_navigation_event_parse_key_event (event, &name);
GST_DEBUG ("received %s event for key \"%s\"",
type == GST_NAVIGATION_EVENT_KEY_PRESS ? "key-press" :
"key-release", name);
break;
}
case GST_NAVIGATION_EVENT_COMMAND:{
GstNavigationCommand command;
const char *name;
gst_navigation_event_parse_command (event, &command);
switch (command) {
case GST_NAVIGATION_COMMAND_INVALID:
name = "invalid";
break;
case GST_NAVIGATION_COMMAND_MENU1:
name = "menu1";
break;
case GST_NAVIGATION_COMMAND_MENU2:
name = "menu2";
break;
case GST_NAVIGATION_COMMAND_MENU3:
name = "menu3";
break;
case GST_NAVIGATION_COMMAND_MENU4:
name = "menu4";
break;
case GST_NAVIGATION_COMMAND_MENU5:
name = "menu5";
break;
case GST_NAVIGATION_COMMAND_MENU6:
name = "menu6";
break;
case GST_NAVIGATION_COMMAND_MENU7:
name = "menu7";
break;
case GST_NAVIGATION_COMMAND_LEFT:
name = "left";
break;
case GST_NAVIGATION_COMMAND_RIGHT:
name = "right";
break;
case GST_NAVIGATION_COMMAND_UP:
name = "up";
break;
case GST_NAVIGATION_COMMAND_DOWN:
name = "down";
break;
case GST_NAVIGATION_COMMAND_ACTIVATE:
name = "activate";
break;
case GST_NAVIGATION_COMMAND_PREV_ANGLE:
name = "prev_angle";
break;
case GST_NAVIGATION_COMMAND_NEXT_ANGLE:
name = "next_angle";
break;
default:
name = "unknown";
break;
}
GST_DEBUG ("received \"%s\" command event", name);
break;
}
case GST_NAVIGATION_EVENT_TOUCH_DOWN:
case GST_NAVIGATION_EVENT_TOUCH_MOTION:{
TouchPoint *point;
point = g_new0 (TouchPoint, 1);
gst_navigation_event_parse_touch_event (event,
&(point->id), &(point->x), &(point->y), &(point->pressure));
GST_DEBUG ("received %s event with id %u at %f, %f",
(type == GST_NAVIGATION_EVENT_TOUCH_DOWN) ? "touch-down" :
"touch-motion", point->id, point->x, point->y);
point->images_left = (fps_n + fps_d - 1) / fps_d;
/* black */
point->cy = 0;
point->cu = 0;
point->cv = 0;
g_mutex_lock (&navtest->touch_lock);
navtest->touches = g_slist_prepend (navtest->touches, point);
g_mutex_unlock (&navtest->touch_lock);
break;
}
case GST_NAVIGATION_EVENT_TOUCH_UP:{
TouchPoint *point;
point = g_new0 (TouchPoint, 1);
gst_navigation_event_parse_touch_up_event (event,
&(point->id), &(point->x), &(point->y));
GST_DEBUG ("received touch-up event with id %u at %f, %f",
point->id, point->x, point->y);
point->images_left = (fps_n + fps_d - 1) / fps_d;
/* black */
point->cy = 0;
point->cu = 0;
point->cv = 0;
g_mutex_lock (&navtest->touch_lock);
navtest->touches = g_slist_prepend (navtest->touches, point);
g_mutex_unlock (&navtest->touch_lock);
break;
}
case GST_NAVIGATION_EVENT_TOUCH_FRAME:{
GST_DEBUG ("received touch-frame event");
break;
}
case GST_NAVIGATION_EVENT_TOUCH_CANCEL:{
GST_DEBUG ("received touch-cancel event");
g_slist_foreach (navtest->touches, (GFunc) g_free, NULL);
g_slist_free (navtest->touches);
navtest->touches = NULL;
break;
}
case GST_NAVIGATION_EVENT_INVALID:{
GST_WARNING ("received invalid event");
break;
}
default:{
GST_WARNING ("received unknown event");
break;
}
}
break;
}
default:
break;
}
return GST_BASE_TRANSFORM_CLASS (parent_class)->src_event (trans, event);
}
/* Useful macros */
#define GST_VIDEO_I420_Y_ROWSTRIDE(width) (GST_ROUND_UP_4(width))
#define GST_VIDEO_I420_U_ROWSTRIDE(width) (GST_ROUND_UP_8(width)/2)
#define GST_VIDEO_I420_V_ROWSTRIDE(width) ((GST_ROUND_UP_8(GST_VIDEO_I420_Y_ROWSTRIDE(width)))/2)
#define GST_VIDEO_I420_Y_OFFSET(w,h) (0)
#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)))
#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))
#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))
static void
draw_box_planar411 (GstVideoFrame * frame, int x, int y, int radius,
guint8 colory, guint8 coloru, guint8 colorv)
{
gint width, height;
int x1, x2, y1, y2;
guint8 *d;
gint stride;
width = GST_VIDEO_FRAME_WIDTH (frame);
height = GST_VIDEO_FRAME_HEIGHT (frame);
if (x < 0 || y < 0 || x >= width || y >= height)
return;
x1 = MAX (x - radius, 0);
x2 = MIN (x + radius, width);
y1 = MAX (y - radius, 0);
y2 = MIN (y + radius, height);
d = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
for (y = y1; y < y2; y++) {
for (x = x1; x < x2; x++) {
d[y * stride + x] = colory;
}
}
d = GST_VIDEO_FRAME_PLANE_DATA (frame, 1);
stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 1);
x1 /= 2;
x2 /= 2;
y1 /= 2;
y2 /= 2;
for (y = y1; y < y2; y++) {
for (x = x1; x < x2; x++) {
d[y * stride + x] = coloru;
}
}
d = GST_VIDEO_FRAME_PLANE_DATA (frame, 2);
stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 2);
for (y = y1; y < y2; y++) {
for (x = x1; x < x2; x++) {
d[y * stride + x] = colorv;
}
}
}
static GstFlowReturn
gst_navigationtest_transform_frame (GstVideoFilter * filter,
GstVideoFrame * in_frame, GstVideoFrame * out_frame)
{
GstNavigationtest *navtest = GST_NAVIGATIONTEST (filter);
GSList *walk;
guint8 u = 255, v = 255;
gst_video_frame_copy (out_frame, in_frame);
/* Draw mouse events */
if (navtest->display_mouse) {
walk = navtest->clicks;
while (walk) {
ButtonClick *click = walk->data;
walk = g_slist_next (walk);
draw_box_planar411 (out_frame,
rint (click->x), rint (click->y), 5, click->cy, click->cu, click->cv);
if (--click->images_left < 1) {
navtest->clicks = g_slist_remove (navtest->clicks, click);
g_free (click);
}
}
for (guint i = 0; i <= 28; i++) {
if (navtest->modifiers & (1 << i)) {
u /= 2;
v /= 2;
}
}
draw_box_planar411 (out_frame,
rint (navtest->mousex), rint (navtest->mousey), 5, 128, u, v);
}
/* Draw touch events */
if (navtest->display_touch) {
g_mutex_lock (&navtest->touch_lock);
walk = navtest->touches;
while (walk) {
TouchPoint *point = walk->data;
walk = g_slist_next (walk);
draw_box_planar411 (out_frame,
rint (point->x), rint (point->y), 2, point->cy, point->cu, point->cv);
if (--point->images_left < 1) {
navtest->touches = g_slist_remove (navtest->touches, point);
g_free (point);
}
}
g_mutex_unlock (&navtest->touch_lock);
}
return GST_FLOW_OK;
}
static GstStateChangeReturn
gst_navigationtest_change_state (GstElement * element,
GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstNavigationtest *navtest = GST_NAVIGATIONTEST (element);
if (GST_ELEMENT_CLASS (parent_class)->change_state)
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
{
g_slist_foreach (navtest->clicks, (GFunc) g_free, NULL);
g_slist_free (navtest->clicks);
navtest->clicks = NULL;
g_slist_foreach (navtest->touches, (GFunc) g_free, NULL);
g_slist_free (navtest->touches);
navtest->touches = NULL;
g_mutex_clear (&navtest->touch_lock);
break;
}
case GST_STATE_CHANGE_READY_TO_PAUSED:
{
g_mutex_init (&navtest->touch_lock);
break;
}
default:
break;
}
return ret;
}
static void
gst_navigationtest_class_init (GstNavigationtestClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstBaseTransformClass *trans_class;
GstVideoFilterClass *vfilter_class;
gobject_class = (GObjectClass *) klass;
element_class = (GstElementClass *) klass;
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)