int
main (int argc,
char *argv[])
{
unicap_handle_t handle;
unicap_format_t format;
/* Initialize */
gtk_init (&argc, &argv);
g_thread_init(NULL);
gdk_threads_init ();
gtk_gl_init (&argc, &argv);
init_extensions ();
init_gl_resources ();
handle = open_device();
set_format( handle );
unicap_get_format( handle, &format );
if( ( format.size.width != 640 ) ||
( format.size.height != 480 ) )
{
g_warning( "The default .cg file assumes a video format of 640x480 pixels. \nYou need to change the yuv.cg file to match your size.\n" );
}
prepare_yuv_buffer(&yuvbuffer, &format);
unicap_register_callback( handle, UNICAP_EVENT_NEW_FRAME, (unicap_callback_t)new_frame_cb, NULL );
unicap_start_capture( handle );
/* Gtk window & container */
GtkWindow *window = GTK_WINDOW (gtk_window_new (GTK_WINDOW_TOPLEVEL));
glarea = gtk_drawing_area_new ();
gtk_widget_set_size_request (GTK_WIDGET (glarea), WINDOW_WIDTH, WINDOW_HEIGHT);
g_signal_connect (glarea, "expose-event", G_CALLBACK (on_expose), NULL);
g_signal_connect (glarea, "configure-event", G_CALLBACK (on_configure), NULL);
g_signal_connect (glarea, "map-event", G_CALLBACK (on_mapped), NULL);
g_signal_connect (window, "delete-event", G_CALLBACK (gtk_main_quit), NULL);
GdkGLConfig *gl_config;
gl_config = gdk_gl_config_new_by_mode (GDK_GL_MODE_RGBA | GDK_GL_MODE_DOUBLE);
if (gl_config == NULL)
g_critical ("Failed to setup a double-buffered RGB visual");
if (! gtk_widget_set_gl_capability (GTK_WIDGET (glarea),
gl_config,
NULL,
TRUE,
GDK_GL_RGBA_TYPE))
g_critical ("Failed to add gl capability");
gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (glarea));
gtk_widget_show_all (GTK_WIDGET (window));
/* Main loop */
gtk_main ();
return 0;
}
static void
on_mapped (GtkWidget *widget)
{
GdkGLContext *gl_context = gtk_widget_get_gl_context (widget);
GdkGLDrawable *gl_drawable = gtk_widget_get_gl_drawable (widget);
g_return_if_fail (gl_context != NULL && gl_drawable != NULL);
g_return_if_fail (gdk_gl_drawable_gl_begin (gl_drawable, gl_context));
init_gl_resources ();
update_viewport (widget);
gdk_gl_drawable_gl_end (gl_drawable);
}
int
main (int argc,
char *argv[])
{
/* Initialize */
gst_init (&argc, &argv);
gtk_init (&argc, &argv);
gdk_threads_init ();
gtk_gl_init (&argc, &argv);
init_extensions ();
init_gl_resources ();
/* Gtk window & container */
GtkWindow *window = GTK_WINDOW (gtk_window_new (GTK_WINDOW_TOPLEVEL));
glarea = gtk_drawing_area_new ();
gtk_widget_set_size_request (GTK_WIDGET (glarea), WINDOW_WIDTH, WINDOW_HEIGHT);
g_signal_connect (glarea, "expose-event", G_CALLBACK (on_expose), NULL);
g_signal_connect (glarea, "configure-event", G_CALLBACK (on_configure), NULL);
g_signal_connect (glarea, "map-event", G_CALLBACK (on_mapped), NULL);
g_signal_connect (window, "delete-event", G_CALLBACK (gtk_main_quit), NULL);
GdkGLConfig *gl_config;
gl_config = gdk_gl_config_new_by_mode (GDK_GL_MODE_RGBA | GDK_GL_MODE_DOUBLE);
if (gl_config == NULL)
g_critical ("Failed to setup a double-buffered RGB visual");
if (! gtk_widget_set_gl_capability (GTK_WIDGET (glarea),
gl_config,
NULL,
TRUE,
GDK_GL_RGBA_TYPE))
g_critical ("Failed to add gl capability");
gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (glarea));
gtk_widget_show_all (GTK_WIDGET (window));
/* Create the elements */
pipeline = gst_pipeline_new (NULL);
source = gst_element_factory_make ("filesrc", "filesrc");
decodebin = gst_element_factory_make ("decodebin", "decodebin");
videosink = gst_element_factory_make ("fakesink", "videosink");
audiosink = gst_element_factory_make ("alsasink", "audiosink");
audioconvert = gst_element_factory_make ("audioconvert", "audioconvert");
audioqueue = gst_element_factory_make ("queue", "audioqueue");
videoqueue = gst_element_factory_make ("queue", "videoqueue");
if (pipeline == NULL || source == NULL || decodebin == NULL ||
videosink == NULL || audiosink == NULL || audioconvert == NULL || audioqueue == NULL ||
videoqueue == NULL)
g_critical ("One of the GStreamer decoding elements is missing");
/* Setup the pipeline */
g_object_set (G_OBJECT (source), "location", "video.avi", NULL);
gst_bin_add_many (GST_BIN (pipeline), source, decodebin, videosink,
audiosink, audioconvert, audioqueue, videoqueue, NULL);
g_signal_connect (decodebin, "pad-added", G_CALLBACK (on_new_pad), NULL);
/* Link the elements */
gst_element_link (source, decodebin);
gst_element_link (audioqueue, audioconvert);
gst_element_link (audioconvert, audiosink);
gst_element_link (videoqueue, videosink);
/* Now run the pipeline... */
gst_element_set_state (pipeline, GST_STATE_PLAYING);
/* Main loop */
gtk_main ();
return 0;
}
