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tests/examples/seek/seek.c: Add combo box for visualisations, populate it with a factory list of all visualisation pl...

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Original commit message from CVS:
* tests/examples/seek/seek.c: (vis_toggle_cb), (filter_features),
(init_visualization_features), (vis_combo_cb), (shot_cb), (main):
Add combo box for visualisations, populate it with a factory list
of all visualisation plugins, configure vis plugin instance in
playbin2.
This commit is contained in:
Wim Taymans 2008-02-27 12:19:31 +00:00
parent 5c1a648f83
commit 8ef40f64a7
2 changed files with 88 additions and 3 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2008-02-27 Wim Taymans <wim.taymans@collabora.co.uk>
* tests/examples/seek/seek.c: (vis_toggle_cb), (filter_features),
(init_visualization_features), (vis_combo_cb), (shot_cb), (main):
Add combo box for visualisations, populate it with a factory list
of all visualisation plugins, configure vis plugin instance in
playbin2.
2008-02-27 Wim Taymans <wim.taymans@collabora.co.uk>
* tests/check/libs/rtp.c: (GST_START_TEST):

83
tests/examples/seek/seek.c
View file

@ -87,10 +87,19 @@ static gulong changed_id;
static gint n_video = 0, n_audio = 0, n_text = 0;
static gboolean need_streams = TRUE;
static GtkWidget *video_combo, *audio_combo, *text_combo;
static GtkWidget *video_combo, *audio_combo, *text_combo, *vis_combo;
static GtkWidget *vis_checkbox, *video_checkbox, *audio_checkbox;
static GtkWidget *text_checkbox, *mute_checkbox, *volume_spinbutton;
/* we keep an array of the visualisation entries so that we can easily switch
* with the combo box index. */
typedef struct
{
GstElementFactory *factory;
} VisEntry;
static GArray *vis_entries;
static void clear_streams (GstElement * pipeline);
/* pipeline construction */
@ -1486,7 +1495,11 @@ update_flag (GstPipeline * pipeline, gint num, gboolean state)
static void
vis_toggle_cb (GtkToggleButton * button, GstPipeline * pipeline)
{
update_flag (pipeline, 3, gtk_toggle_button_get_active (button));
gboolean state;
state = gtk_toggle_button_get_active (button);
update_flag (pipeline, 3, state);
gtk_widget_set_sensitive (vis_combo, state);
}
static void
@ -1615,6 +1628,62 @@ text_combo_cb (GtkComboBox * combo, GstPipeline * pipeline)
NULL);
}
static gboolean
filter_features (GstPluginFeature * feature, gpointer data)
{
GstElementFactory *f;
if (!GST_IS_ELEMENT_FACTORY (feature))
return FALSE;
f = GST_ELEMENT_FACTORY (feature);
if (!g_strrstr (gst_element_factory_get_klass (f), "Visualization"))
return FALSE;
return TRUE;
}
static void
init_visualization_features (void)
{
GList *list, *walk;
vis_entries = g_array_new (FALSE, FALSE, sizeof (VisEntry));
list = gst_registry_feature_filter (gst_registry_get_default (),
filter_features, FALSE, NULL);
for (walk = list; walk; walk = g_list_next (walk)) {
VisEntry entry;
const gchar *name;
entry.factory = GST_ELEMENT_FACTORY (walk->data);
name = gst_element_factory_get_longname (entry.factory);
g_array_append_val (vis_entries, entry);
gtk_combo_box_append_text (GTK_COMBO_BOX (vis_combo), name);
}
gtk_combo_box_set_active (GTK_COMBO_BOX (vis_combo), 0);
}
static void
vis_combo_cb (GtkComboBox * combo, GstPipeline * pipeline)
{
guint index;
VisEntry *entry;
GstElement *element;
/* get the selected index and get the factory for this index */
index = gtk_combo_box_get_active (GTK_COMBO_BOX (vis_combo));
entry = &g_array_index (vis_entries, VisEntry, index);
/* create an instance of the element from the factory */
element = gst_element_factory_create (entry->factory, NULL);
if (!element)
return;
/* set vis plugin for playbin2 */
g_object_set (pipeline, "vis-plugin", element, NULL);
}
static void
volume_spinbutton_changed_cb (GtkSpinButton * button, GstPipeline * pipeline)
{
@ -1643,6 +1712,7 @@ shot_cb (GtkButton * button, gpointer data)
"green_mask", G_TYPE_INT, 0x00ff00,
"blue_mask", G_TYPE_INT, 0x0000ff, NULL);
/* convert the latest frame to the requested format */
g_signal_emit_by_name (pipeline, "convert-frame", caps, &buffer);
gst_caps_unref (caps);
@ -1988,10 +2058,17 @@ main (int argc, char **argv)
shot_button = gtk_button_new_from_stock (GTK_STOCK_SAVE);
gtk_tooltips_set_tip (tips, shot_button,
"save a screenshot .png in the current directory", NULL);
gtk_box_pack_start (GTK_BOX (boxes2), shot_button, TRUE, TRUE, 2);
g_signal_connect (G_OBJECT (shot_button), "clicked", G_CALLBACK (shot_cb),
pipeline);
vis_combo = gtk_combo_box_new_text ();
g_signal_connect (G_OBJECT (vis_combo), "changed",
G_CALLBACK (vis_combo_cb), pipeline);
gtk_widget_set_sensitive (vis_combo, FALSE);
gtk_box_pack_start (GTK_BOX (boxes2), shot_button, TRUE, TRUE, 2);
gtk_box_pack_start (GTK_BOX (boxes2), vis_combo, TRUE, TRUE, 2);
/* fill the vis combo box and the array of factories */
init_visualization_features ();
} else {
panel = boxes = boxes2 = NULL;
}