gboolean
gst_tracer_register (GstPlugin * plugin, const gchar * name, GType type)
{
GstPluginFeature *existing_feature;
GstRegistry *registry;
GstTracerFactory *factory;
g_return_val_if_fail (name != NULL, FALSE);
g_return_val_if_fail (g_type_is_a (type, GST_TYPE_TRACER), FALSE);
registry = gst_registry_get ();
/* check if feature already exists, if it exists there is no need to update it
* when the registry is getting updated, outdated plugins and all their
* features are removed and readded.
*/
existing_feature = gst_registry_lookup_feature (registry, name);
if (existing_feature) {
GST_DEBUG_OBJECT (registry, "update existing feature %p (%s)",
existing_feature, name);
factory = GST_TRACER_FACTORY_CAST (existing_feature);
factory->type = type;
existing_feature->loaded = TRUE;
gst_object_unref (existing_feature);
return TRUE;
}
factory = g_object_newv (GST_TYPE_TRACER_FACTORY, 0, NULL);
GST_DEBUG_OBJECT (factory, "new tracer factory for %s", name);
gst_plugin_feature_set_name (GST_PLUGIN_FEATURE_CAST (factory), name);
gst_plugin_feature_set_rank (GST_PLUGIN_FEATURE_CAST (factory),
GST_RANK_NONE);
factory->type = type;
GST_DEBUG_OBJECT (factory, "tracer factory for %u:%s",
(guint) type, g_type_name (type));
if (plugin && plugin->desc.name) {
GST_PLUGIN_FEATURE_CAST (factory)->plugin_name = plugin->desc.name; /* interned string */
GST_PLUGIN_FEATURE_CAST (factory)->plugin = plugin;
g_object_add_weak_pointer ((GObject *) plugin,
(gpointer *) & GST_PLUGIN_FEATURE_CAST (factory)->plugin);
} else {
GST_PLUGIN_FEATURE_CAST (factory)->plugin_name = "NULL";
GST_PLUGIN_FEATURE_CAST (factory)->plugin = NULL;
}
GST_PLUGIN_FEATURE_CAST (factory)->loaded = TRUE;
gst_registry_add_feature (gst_registry_get (),
GST_PLUGIN_FEATURE_CAST (factory));
return TRUE;
}
static void
gst_plugin_feature_finalize (GObject * object)
{
GstPluginFeature *feature = GST_PLUGIN_FEATURE_CAST (object);
GST_DEBUG ("finalizing feature %p: '%s'", feature,
GST_PLUGIN_FEATURE_NAME (feature));
g_free (feature->name);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/**
* gst_plugin_feature_list_free:
* @list: (transfer full) (element-type Gst.PluginFeature): list
* of #GstPluginFeature
*
* Unrefs each member of @list, then frees the list.
*/
void
gst_plugin_feature_list_free (GList * list)
{
GList *g;
for (g = list; g; g = g->next) {
GstPluginFeature *feature = GST_PLUGIN_FEATURE_CAST (g->data);
gst_object_unref (feature);
}
g_list_free (list);
}
/**
* gst_type_find_register:
* @plugin: (allow-none): A #GstPlugin, or NULL for a static typefind function
* @name: The name for registering
* @rank: The rank (or importance) of this typefind function
* @func: The #GstTypeFindFunction to use
* @extensions: (allow-none): Optional comma-separated list of extensions
* that could belong to this type
* @possible_caps: Optionally the caps that could be returned when typefinding
* succeeds
* @data: Optional user data. This user data must be available until the plugin
* is unloaded.
* @data_notify: a #GDestroyNotify that will be called on @data when the plugin
* is unloaded.
*
* Registers a new typefind function to be used for typefinding. After
* registering this function will be available for typefinding.
* This function is typically called during an element's plugin initialization.
*
* Returns: TRUE on success, FALSE otherwise
*/
gboolean
gst_type_find_register (GstPlugin * plugin, const gchar * name, guint rank,
GstTypeFindFunction func, const gchar * extensions,
GstCaps * possible_caps, gpointer data, GDestroyNotify data_notify)
{
GstTypeFindFactory *factory;
g_return_val_if_fail (name != NULL, FALSE);
GST_INFO ("registering typefind function for %s", name);
factory = g_object_newv (GST_TYPE_TYPE_FIND_FACTORY, 0, NULL);
GST_DEBUG_OBJECT (factory, "using new typefind factory for %s", name);
g_assert (GST_IS_TYPE_FIND_FACTORY (factory));
gst_plugin_feature_set_name (GST_PLUGIN_FEATURE_CAST (factory), name);
gst_plugin_feature_set_rank (GST_PLUGIN_FEATURE_CAST (factory), rank);
if (factory->extensions) {
g_strfreev (factory->extensions);
factory->extensions = NULL;
}
if (extensions)
factory->extensions = g_strsplit (extensions, ",", -1);
gst_caps_replace (&factory->caps, possible_caps);
factory->function = func;
factory->user_data = data;
factory->user_data_notify = data_notify;
if (plugin && plugin->desc.name) {
GST_PLUGIN_FEATURE_CAST (factory)->plugin_name = plugin->desc.name; /* interned string */
GST_PLUGIN_FEATURE_CAST (factory)->plugin = plugin;
g_object_add_weak_pointer ((GObject *) plugin,
(gpointer *) & GST_PLUGIN_FEATURE_CAST (factory)->plugin);
} else {
GST_PLUGIN_FEATURE_CAST (factory)->plugin_name = "NULL";
GST_PLUGIN_FEATURE_CAST (factory)->plugin = NULL;
}
GST_PLUGIN_FEATURE_CAST (factory)->loaded = TRUE;
gst_registry_add_feature (gst_registry_get (),
GST_PLUGIN_FEATURE_CAST (factory));
return TRUE;
}
static void
gst_plugin_feature_finalize (GObject * object)
{
GstPluginFeature *feature = GST_PLUGIN_FEATURE_CAST (object);
GST_DEBUG ("finalizing feature %p: '%s'", feature, GST_OBJECT_NAME (feature));
if (feature->plugin != NULL) {
g_object_remove_weak_pointer ((GObject *) feature->plugin,
(gpointer *) & feature->plugin);
}
G_OBJECT_CLASS (gst_plugin_feature_parent_class)->finalize (object);
}
static gboolean
gst_auto_video_convert_element_filter (GstPluginFeature * feature,
GstAutoVideoConvert * autovideoconvert)
{
const gchar *klass;
/* we only care about element factories */
if (G_UNLIKELY (!GST_IS_ELEMENT_FACTORY (feature)))
return FALSE;
klass = gst_element_factory_get_metadata (GST_ELEMENT_FACTORY_CAST (feature),
GST_ELEMENT_METADATA_KLASS);
/* only select color space converter */
if (strstr (klass, "Filter") &&
strstr (klass, "Converter") && strstr (klass, "Video")) {
GST_DEBUG_OBJECT (autovideoconvert,
"gst_auto_video_convert_element_filter found %s\n",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE_CAST (feature)));
return TRUE;
}
return FALSE;
}
static void
suboverlay_child_added_cb (GstElement * suboverlay, GstElement * child,
InsanityTest * test)
{
GstIterator *it = NULL;
GstPad *render_sub_sink, *tmppad;
GstElementFactory *fact;
const gchar *klass, *name;
gulong probe_id;
GValue value = { 0, };
gboolean is_renderer = FALSE;
/* cc-ed from -base/gstsubtitleoveraly.c */
fact = gst_element_get_factory (child);
klass = gst_element_factory_get_metadata (fact, GST_ELEMENT_METADATA_KLASS);
if (GST_IS_BIN (child))
return;
name = gst_plugin_feature_get_name (GST_PLUGIN_FEATURE_CAST (fact));
if (g_strrstr (klass, "Overlay/Subtitle") != NULL ||
g_strrstr (klass, "Overlay/SubPicture") != NULL)
is_renderer = TRUE;
else if (g_strcmp0 (name, "textoverlay") == 0)
is_renderer = TRUE;
if (is_renderer == FALSE)
goto done;
LOG (test, "Renderer found: %s", name);
/* Now adding the probe to the renderer "subtitle" sink pad */
it = gst_element_iterate_sink_pads (child);
if (gst_iterator_find_custom (it,
(GCompareFunc) find_renderer_subtitle_sinkpad, &value, NULL)) {
render_sub_sink = g_value_get_object (&value);
} else {
goto done;
}
if (insanity_gst_test_add_data_probe (INSANITY_GST_TEST (test),
GST_BIN (glob_pipeline), GST_OBJECT_NAME (child),
GST_ELEMENT_NAME (render_sub_sink), &tmppad, &probe_id,
&renderer_probe_cb, NULL, NULL) == TRUE) {
glob_renderer_sink_probe = g_slice_new0 (ProbeContext);
glob_renderer_sink_probe->probe_id = probe_id;
glob_renderer_sink_probe->pad = render_sub_sink;
glob_renderer_sink_probe->element = child;
glob_renderer_sink_probe->test = test;
glob_renderer_sink_probe->waiting_first_segment = TRUE;
insanity_test_validate_checklist_item (test, "install-probes", TRUE, NULL);
} else {
insanity_test_validate_checklist_item (test, "install-probes", FALSE,
"Failed to attach probe to fakesink");
insanity_test_done (test);
goto done;
}
done:
if (it)
gst_iterator_free (it);
}
/**
* gst_element_register:
* @plugin: (allow-none): #GstPlugin to register the element with, or NULL for
* a static element (note that passing NULL only works in GStreamer 0.10.13
* and later)
* @name: name of elements of this type
* @rank: rank of element (higher rank means more importance when autoplugging)
* @type: GType of element to register
*
* Create a new elementfactory capable of instantiating objects of the
* @type and add the factory to @plugin.
*
* Returns: TRUE, if the registering succeeded, FALSE on error
*/
gboolean
gst_element_register (GstPlugin * plugin, const gchar * name, guint rank,
GType type)
{
GstPluginFeature *existing_feature;
GstRegistry *registry;
GstElementFactory *factory;
GType *interfaces;
guint n_interfaces, i;
GstElementClass *klass;
GList *item;
g_return_val_if_fail (name != NULL, FALSE);
g_return_val_if_fail (g_type_is_a (type, GST_TYPE_ELEMENT), FALSE);
registry = gst_registry_get_default ();
/* check if feature already exists, if it exists there is no need to update it
* when the registry is getting updated, outdated plugins and all their
* features are removed and readded.
*/
existing_feature = gst_registry_lookup_feature (registry, name);
if (existing_feature) {
GST_DEBUG_OBJECT (registry, "update existing feature %p (%s)",
existing_feature, name);
factory = GST_ELEMENT_FACTORY_CAST (existing_feature);
factory->type = type;
existing_feature->loaded = TRUE;
g_type_set_qdata (type, _gst_elementclass_factory, factory);
gst_object_unref (existing_feature);
return TRUE;
}
factory =
GST_ELEMENT_FACTORY_CAST (g_object_newv (GST_TYPE_ELEMENT_FACTORY, 0,
NULL));
gst_plugin_feature_set_name (GST_PLUGIN_FEATURE_CAST (factory), name);
GST_LOG_OBJECT (factory, "Created new elementfactory for type %s",
g_type_name (type));
/* provide info needed during class structure setup */
g_type_set_qdata (type, _gst_elementclass_factory, factory);
klass = GST_ELEMENT_CLASS (g_type_class_ref (type));
if ((klass->details.longname == NULL) ||
(klass->details.klass == NULL) || (klass->details.author == NULL))
goto detailserror;
factory->type = type;
__gst_element_details_copy (&factory->details, &klass->details);
if (klass->meta_data) {
factory->meta_data = gst_structure_copy ((GstStructure *) klass->meta_data);
} else {
factory->meta_data = NULL;
}
for (item = klass->padtemplates; item; item = item->next) {
GstPadTemplate *templ = item->data;
GstStaticPadTemplate *newt;
gchar *caps_string = gst_caps_to_string (templ->caps);
newt = g_slice_new (GstStaticPadTemplate);
newt->name_template = g_intern_string (templ->name_template);
newt->direction = templ->direction;
newt->presence = templ->presence;
newt->static_caps.caps.refcount = 0;
newt->static_caps.string = g_intern_string (caps_string);
factory->staticpadtemplates =
g_list_append (factory->staticpadtemplates, newt);
g_free (caps_string);
}
factory->numpadtemplates = klass->numpadtemplates;
/* special stuff for URI handling */
if (g_type_is_a (type, GST_TYPE_URI_HANDLER)) {
GstURIHandlerInterface *iface = (GstURIHandlerInterface *)
g_type_interface_peek (klass, GST_TYPE_URI_HANDLER);
if (!iface || (!iface->get_type && !iface->get_type_full) ||
(!iface->get_protocols && !iface->get_protocols_full))
goto urierror;
if (iface->get_type)
factory->uri_type = iface->get_type ();
else if (iface->get_type_full)
factory->uri_type = iface->get_type_full (factory->type);
if (!GST_URI_TYPE_IS_VALID (factory->uri_type))
goto urierror;
if (iface->get_protocols)
factory->uri_protocols = g_strdupv (iface->get_protocols ());
else if (iface->get_protocols_full)
factory->uri_protocols = iface->get_protocols_full (factory->type);
if (!factory->uri_protocols)
goto urierror;
}
interfaces = g_type_interfaces (type, &n_interfaces);
for (i = 0; i < n_interfaces; i++) {
__gst_element_factory_add_interface (factory, g_type_name (interfaces[i]));
}
g_free (interfaces);
if (plugin && plugin->desc.name) {
GST_PLUGIN_FEATURE_CAST (factory)->plugin_name = plugin->desc.name;
GST_PLUGIN_FEATURE_CAST (factory)->plugin = plugin;
g_object_add_weak_pointer ((GObject *) plugin,
(gpointer *) & GST_PLUGIN_FEATURE_CAST (factory)->plugin);
} else {
GST_PLUGIN_FEATURE_CAST (factory)->plugin_name = "NULL";
GST_PLUGIN_FEATURE_CAST (factory)->plugin = NULL;
}
gst_plugin_feature_set_rank (GST_PLUGIN_FEATURE_CAST (factory), rank);
GST_PLUGIN_FEATURE_CAST (factory)->loaded = TRUE;
gst_registry_add_feature (registry, GST_PLUGIN_FEATURE_CAST (factory));
return TRUE;
/* ERRORS */
urierror:
{
GST_WARNING_OBJECT (factory, "error with uri handler!");
gst_element_factory_cleanup (factory);
return FALSE;
}
detailserror:
{
GST_WARNING_OBJECT (factory,
"The GstElementDetails don't seem to have been set properly");
gst_element_factory_cleanup (factory);
return FALSE;
}
}
/**
* gst_device_provider_register:
* @plugin: (allow-none): #GstPlugin to register the device provider with, or %NULL for
* a static device provider.
* @name: name of device providers of this type
* @rank: rank of device provider (higher rank means more importance when autoplugging)
* @type: GType of device provider to register
*
* Create a new device providerfactory capable of instantiating objects of the
* @type and add the factory to @plugin.
*
* Returns: %TRUE, if the registering succeeded, %FALSE on error
*
* Since: 1.4
*/
gboolean
gst_device_provider_register (GstPlugin * plugin, const gchar * name,
guint rank, GType type)
{
GstPluginFeature *existing_feature;
GstRegistry *registry;
GstDeviceProviderFactory *factory;
GstDeviceProviderClass *klass;
g_return_val_if_fail (name != NULL, FALSE);
g_return_val_if_fail (g_type_is_a (type, GST_TYPE_DEVICE_PROVIDER), FALSE);
registry = gst_registry_get ();
/* check if feature already exists, if it exists there is no need to update it
* when the registry is getting updated, outdated plugins and all their
* features are removed and readded.
*/
existing_feature = gst_registry_lookup_feature (registry, name);
if (existing_feature) {
GST_DEBUG_OBJECT (registry, "update existing feature %p (%s)",
existing_feature, name);
factory = GST_DEVICE_PROVIDER_FACTORY_CAST (existing_feature);
factory->type = type;
existing_feature->loaded = TRUE;
g_type_set_qdata (type, __gst_deviceproviderclass_factory, factory);
gst_object_unref (existing_feature);
return TRUE;
}
factory =
GST_DEVICE_PROVIDER_FACTORY_CAST (g_object_newv
(GST_TYPE_DEVICE_PROVIDER_FACTORY, 0, NULL));
gst_plugin_feature_set_name (GST_PLUGIN_FEATURE_CAST (factory), name);
GST_LOG_OBJECT (factory, "Created new device providerfactory for type %s",
g_type_name (type));
/* provide info needed during class structure setup */
g_type_set_qdata (type, __gst_deviceproviderclass_factory, factory);
klass = GST_DEVICE_PROVIDER_CLASS (g_type_class_ref (type));
CHECK_METADATA_FIELD (klass, name, GST_ELEMENT_METADATA_LONGNAME);
CHECK_METADATA_FIELD (klass, name, GST_ELEMENT_METADATA_KLASS);
CHECK_METADATA_FIELD (klass, name, GST_ELEMENT_METADATA_DESCRIPTION);
CHECK_METADATA_FIELD (klass, name, GST_ELEMENT_METADATA_AUTHOR);
factory->type = type;
factory->metadata = gst_structure_copy ((GstStructure *) klass->metadata);
if (plugin && plugin->desc.name) {
GST_PLUGIN_FEATURE_CAST (factory)->plugin_name = plugin->desc.name;
GST_PLUGIN_FEATURE_CAST (factory)->plugin = plugin;
g_object_add_weak_pointer ((GObject *) plugin,
(gpointer *) & GST_PLUGIN_FEATURE_CAST (factory)->plugin);
} else {
GST_PLUGIN_FEATURE_CAST (factory)->plugin_name = "NULL";
GST_PLUGIN_FEATURE_CAST (factory)->plugin = NULL;
}
gst_plugin_feature_set_rank (GST_PLUGIN_FEATURE_CAST (factory), rank);
GST_PLUGIN_FEATURE_CAST (factory)->loaded = TRUE;
gst_registry_add_feature (registry, GST_PLUGIN_FEATURE_CAST (factory));
return TRUE;
/* ERRORS */
detailserror:
{
gst_device_provider_factory_cleanup (factory);
return FALSE;
}
}
