adding in gstreamer working although another window created and meson with it

compile_commands.json

@@ -1,7 +1,8 @@
 [
-{
-  "directory": "/home/talksik/Code/flowy/client",
-  "command": "/usr/bin/c++  -I/usr/include/sigc++-3.0 -I/usr/lib/x86_64-linux-gnu/sigc++-3.0/include -I/usr/include/gtk-4.0/unix-print -I/usr/include/gtk-4.0 -I/usr/include/gio-unix-2.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/harfbuzz -I/usr/include/fribidi -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/graphene-1.0 -I/usr/lib/x86_64-linux-gnu/graphene-1.0/include -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/gtkmm-4.0 -I/usr/lib/gtkmm-4.0/include -I/usr/include/pangomm-2.48 -I/usr/lib/pangomm-2.48/include -I/usr/include/giomm-2.68 -I/usr/lib/giomm-2.68/include -I/usr/include/glibmm-2.68 -I/usr/lib/glibmm-2.68/include -I/usr/include/cairomm-1.16 -I/usr/lib/cairomm-1.16/include -g -o CMakeFiles/flowy.dir/src/main.cpp.o -c /home/talksik/Code/flowy/client/src/main.cpp",
-  "file": "/home/talksik/Code/flowy/client/src/main.cpp"
-}
+  {
+    "directory": "/home/talksik/Code/flowy/client/build",
+    "command": "c++ -Iflowy.p -I. -I.. -I/usr/include/sigc++-3.0 -I/usr/lib/x86_64-linux-gnu/sigc++-3.0/include -I/usr/include/gtk-4.0/unix-print -I/usr/include/gtk-4.0 -I/usr/include/gio-unix-2.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/harfbuzz -I/usr/include/fribidi -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/x86_64-linux-gnu -I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/graphene-1.0 -I/usr/lib/x86_64-linux-gnu/graphene-1.0/include -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/gtkmm-4.0 -I/usr/lib/gtkmm-4.0/include -I/usr/include/pangomm-2.48 -I/usr/lib/pangomm-2.48/include -I/usr/include/giomm-2.68 -I/usr/lib/giomm-2.68/include -I/usr/include/glibmm-2.68 -I/usr/lib/glibmm-2.68/include -I/usr/include/cairomm-1.16 -I/usr/lib/cairomm-1.16/include -I/usr/include/gstreamer-1.0 -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -g -pthread -mfpmath=sse -msse -msse2 -MD -MQ flowy.p/src_main.cpp.o -MF flowy.p/src_main.cpp.o.d -o flowy.p/src_main.cpp.o -c ../src/main.cpp",
+    "file": "../src/main.cpp",
+    "output": "flowy.p/src_main.cpp.o"
+  }
 ]

meson.build

@@ -1,9 +1,10 @@
 project('flowy', 'cpp')
 
 gtkmm_dep = dependency('gtkmm-4.0', version: '>= 4.6.0')
+gstreamer_dep = dependency('gstreamer-1.0')
 
 exe_file = executable('flowy',
   'src/main.cpp',
-  dependencies: gtkmm_dep,
+  dependencies: [gtkmm_dep, gstreamer_dep],
   win_subsystem: 'windows',
 )

meson.sh

@@ -7,6 +7,11 @@ echo "Compiling..."
 cd build
 meson compile
 
+
+echo "Placing compile_commands.json in root directory..."
+rm ../compile_commands.json
+cp compile_commands.json ../
+
 echo "Running..."
 ./flowy
 

src/main.cpp

@@ -1,10 +1,41 @@
 #include "gtkmm/button.h"
+#include <gst/gst.h>
 #include <gtkmm.h>
 #include <iostream>
 
 #include "main.h"
 
+void test_gstreamer() {
+  GstElement *pipeline = nullptr;
+  GstBus *bus = nullptr;
+  GstMessage *msg = nullptr;
+
+  // building pipeline
+  pipeline =
+      gst_parse_launch("playbin "
+                       "uri=https://www.freedesktop.org/software/gstreamer-sdk/"
+                       "data/media/sintel_trailer-480p.webm",
+                       nullptr);
+
+  // start playing
+  gst_element_set_state(pipeline, GST_STATE_PLAYING);
+
+  // wait until error or EOS ( End Of Stream )
+  bus = gst_element_get_bus(pipeline);
+  msg = gst_bus_timed_pop_filtered(
+      bus, GST_CLOCK_TIME_NONE,
+      static_cast<GstMessageType>(GST_MESSAGE_ERROR | GST_MESSAGE_EOS));
+
+  // free memory
+  if (msg != nullptr)
+    gst_message_unref(msg);
+  gst_object_unref(bus);
+  gst_element_set_state(pipeline, GST_STATE_NULL);
+  gst_object_unref(pipeline);
+}
+
 MyWindow::MyWindow() {
+
   set_title("Basic application");
 
   Gtk::Button button("start capture");
@@ -22,6 +53,9 @@ MyWindow::~MyWindow() {}
 void MyWindow::startCapture() { std::cout << "start capture" << std::endl; }
 
 int main(int argc, char **argv) {
+  gst_init(&argc, &argv);
+  test_gstreamer();
+
   auto app = Gtk::Application::create("org.gtkmm.examples.base");
 
   return app->make_window_and_run<MyWindow>(argc, argv);