/**
* gst_type_find_factory_has_function:
* @factory: A #GstTypeFindFactory
*
* Check whether the factory has a typefind function. Typefind factories
* without typefind functions are a last-effort fallback mechanism to
* e.g. assume a certain media type based on the file extension.
*
* Returns: %TRUE if the factory has a typefind functions set, otherwise %FALSE
*/
gboolean
gst_type_find_factory_has_function (GstTypeFindFactory * factory)
{
g_return_val_if_fail (GST_IS_TYPE_FIND_FACTORY (factory), FALSE);
return (factory->function != NULL);
}
/**
* gst_type_find_factory_get_caps:
* @factory: A #GstTypeFindFactory
*
* Gets the #GstCaps associated with a typefind factory.
*
* Returns: (transfer none): the #GstCaps associated with this factory
*/
GstCaps *
gst_type_find_factory_get_caps (GstTypeFindFactory * factory)
{
g_return_val_if_fail (GST_IS_TYPE_FIND_FACTORY (factory), NULL);
return factory->caps;
}
/**
* 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;
}
/**
* gst_type_find_factory_call_function:
* @factory: A #GstTypeFindFactory
* @find: (transfer none): a properly setup #GstTypeFind entry. The get_data
* and suggest_type members must be set.
*
* Calls the #GstTypeFindFunction associated with this factory.
*/
void
gst_type_find_factory_call_function (GstTypeFindFactory * factory,
GstTypeFind * find)
{
GstTypeFindFactory *new_factory;
g_return_if_fail (GST_IS_TYPE_FIND_FACTORY (factory));
g_return_if_fail (find != NULL);
g_return_if_fail (find->peek != NULL);
g_return_if_fail (find->suggest != NULL);
new_factory =
GST_TYPE_FIND_FACTORY (gst_plugin_feature_load (GST_PLUGIN_FEATURE
(factory)));
if (new_factory) {
if (new_factory->function)
new_factory->function (find, new_factory->user_data);
gst_object_unref (new_factory);
}
}
static void
print_element_list (gboolean print_all)
{
int plugincount = 0, featurecount = 0, blacklistcount = 0;
GList *plugins, *orig_plugins;
orig_plugins = plugins = gst_registry_get_plugin_list (gst_registry_get ());
while (plugins) {
GList *features, *orig_features;
GstPlugin *plugin;
plugin = (GstPlugin *) (plugins->data);
plugins = g_list_next (plugins);
plugincount++;
if (GST_OBJECT_FLAG_IS_SET (plugin, GST_PLUGIN_FLAG_BLACKLISTED)) {
blacklistcount++;
continue;
}
orig_features = features =
gst_registry_get_feature_list_by_plugin (gst_registry_get (),
gst_plugin_get_name (plugin));
while (features) {
GstPluginFeature *feature;
if (G_UNLIKELY (features->data == NULL))
goto next;
feature = GST_PLUGIN_FEATURE (features->data);
featurecount++;
if (GST_IS_ELEMENT_FACTORY (feature)) {
GstElementFactory *factory;
factory = GST_ELEMENT_FACTORY (feature);
if (print_all)
print_element_info (factory, TRUE);
else
g_print ("%s: %s: %s\n", gst_plugin_get_name (plugin),
GST_OBJECT_NAME (factory),
gst_element_factory_get_metadata (factory,
GST_ELEMENT_METADATA_LONGNAME));
} else if (GST_IS_TYPE_FIND_FACTORY (feature)) {
GstTypeFindFactory *factory;
const gchar *const *extensions;
factory = GST_TYPE_FIND_FACTORY (feature);
if (!print_all)
g_print ("%s: %s: ", gst_plugin_get_name (plugin),
gst_plugin_feature_get_name (feature));
extensions = gst_type_find_factory_get_extensions (factory);
if (extensions != NULL) {
guint i = 0;
while (extensions[i]) {
if (!print_all)
g_print ("%s%s", i > 0 ? ", " : "", extensions[i]);
i++;
}
if (!print_all)
g_print ("\n");
} else {
if (!print_all)
g_print ("no extensions\n");
}
} else {
if (!print_all)
n_print ("%s: %s (%s)\n", gst_plugin_get_name (plugin),
GST_OBJECT_NAME (feature), g_type_name (G_OBJECT_TYPE (feature)));
}
next:
features = g_list_next (features);
}
gst_plugin_feature_list_free (orig_features);
}
gst_plugin_list_free (orig_plugins);
g_print ("\n");
g_print (_("Total count: "));
g_print (ngettext ("%d plugin", "%d plugins", plugincount), plugincount);
if (blacklistcount) {
g_print (" (");
g_print (ngettext ("%d blacklist entry", "%d blacklist entries",
blacklistcount), blacklistcount);
g_print (" not shown)");
}
g_print (", ");
g_print (ngettext ("%d feature", "%d features", featurecount), featurecount);
g_print ("\n");
}
static void
print_plugin_features (GstPlugin * plugin)
{
GList *features, *origlist;
gint num_features = 0;
gint num_elements = 0;
gint num_tracers = 0;
gint num_typefinders = 0;
gint num_devproviders = 0;
gint num_other = 0;
origlist = features =
gst_registry_get_feature_list_by_plugin (gst_registry_get (),
gst_plugin_get_name (plugin));
while (features) {
GstPluginFeature *feature;
feature = GST_PLUGIN_FEATURE (features->data);
if (GST_IS_ELEMENT_FACTORY (feature)) {
GstElementFactory *factory;
factory = GST_ELEMENT_FACTORY (feature);
n_print (" %s: %s\n", GST_OBJECT_NAME (factory),
gst_element_factory_get_metadata (factory,
GST_ELEMENT_METADATA_LONGNAME));
num_elements++;
} else if (GST_IS_TYPE_FIND_FACTORY (feature)) {
GstTypeFindFactory *factory;
const gchar *const *extensions;
factory = GST_TYPE_FIND_FACTORY (feature);
extensions = gst_type_find_factory_get_extensions (factory);
if (extensions) {
guint i = 0;
g_print (" %s: %s: ", gst_plugin_get_name (plugin),
gst_plugin_feature_get_name (feature));
while (extensions[i]) {
g_print ("%s%s", i > 0 ? ", " : "", extensions[i]);
i++;
}
g_print ("\n");
} else
g_print (" %s: %s: no extensions\n", gst_plugin_get_name (plugin),
gst_plugin_feature_get_name (feature));
num_typefinders++;
} else if (GST_IS_DEVICE_PROVIDER_FACTORY (feature)) {
GstDeviceProviderFactory *factory;
factory = GST_DEVICE_PROVIDER_FACTORY (feature);
n_print (" %s: %s\n", GST_OBJECT_NAME (factory),
gst_device_provider_factory_get_metadata (factory,
GST_ELEMENT_METADATA_LONGNAME));
num_devproviders++;
} else if (GST_IS_TRACER_FACTORY (feature)) {
n_print (" %s (%s)\n", gst_object_get_name (GST_OBJECT (feature)),
g_type_name (G_OBJECT_TYPE (feature)));
num_tracers++;
} else if (feature) {
n_print (" %s (%s)\n", gst_object_get_name (GST_OBJECT (feature)),
g_type_name (G_OBJECT_TYPE (feature)));
num_other++;
}
num_features++;
features = g_list_next (features);
}
gst_plugin_feature_list_free (origlist);
n_print ("\n");
n_print (" %d features:\n", num_features);
if (num_elements > 0)
n_print (" +-- %d elements\n", num_elements);
if (num_typefinders > 0)
n_print (" +-- %d typefinders\n", num_typefinders);
if (num_devproviders > 0)
n_print (" +-- %d device providers\n", num_devproviders);
if (num_tracers > 0)
n_print (" +-- %d tracers\n", num_tracers);
if (num_other > 0)
n_print (" +-- %d other objects\n", num_other);
n_print ("\n");
}
static void
print_element_list (gboolean print_all)
{
int plugincount = 0, featurecount = 0;
GList *plugins, *orig_plugins;
orig_plugins = plugins = gst_default_registry_get_plugin_list ();
while (plugins) {
GList *features, *orig_features;
GstPlugin *plugin;
plugin = (GstPlugin *) (plugins->data);
plugins = g_list_next (plugins);
plugincount++;
orig_features = features =
gst_registry_get_feature_list_by_plugin (gst_registry_get_default (),
plugin->desc.name);
while (features) {
GstPluginFeature *feature;
feature = GST_PLUGIN_FEATURE (features->data);
featurecount++;
if (GST_IS_ELEMENT_FACTORY (feature)) {
GstElementFactory *factory;
factory = GST_ELEMENT_FACTORY (feature);
if (print_all)
print_element_info (factory, TRUE);
else
g_print ("%s: %s: %s\n", plugin->desc.name,
GST_PLUGIN_FEATURE_NAME (factory),
gst_element_factory_get_longname (factory));
} else if (GST_IS_INDEX_FACTORY (feature)) {
GstIndexFactory *factory;
factory = GST_INDEX_FACTORY (feature);
if (!print_all)
g_print ("%s: %s: %s\n", plugin->desc.name,
GST_PLUGIN_FEATURE_NAME (factory), factory->longdesc);
} else if (GST_IS_TYPE_FIND_FACTORY (feature)) {
GstTypeFindFactory *factory;
factory = GST_TYPE_FIND_FACTORY (feature);
if (!print_all)
g_print ("%s: %s: ", plugin->desc.name,
gst_plugin_feature_get_name (feature));
if (factory->extensions) {
guint i = 0;
while (factory->extensions[i]) {
if (!print_all)
g_print ("%s%s", i > 0 ? ", " : "", factory->extensions[i]);
i++;
}
if (!print_all)
g_print ("\n");
} else {
if (!print_all)
g_print ("no extensions\n");
}
} else {
if (!print_all)
n_print ("%s: %s (%s)\n", plugin->desc.name,
GST_PLUGIN_FEATURE_NAME (feature),
g_type_name (G_OBJECT_TYPE (feature)));
}
features = g_list_next (features);
}
gst_plugin_feature_list_free (orig_features);
}
gst_plugin_list_free (orig_plugins);
g_print ("\n");
g_print (_("Total count: "));
g_print (ngettext ("%d plugin", "%d plugins", plugincount), plugincount);
g_print (", ");
g_print (ngettext ("%d feature", "%d features", featurecount), featurecount);
g_print ("\n");
}
static void
print_plugin_features (GstPlugin * plugin)
{
GList *features;
gint num_features = 0;
gint num_elements = 0;
gint num_types = 0;
gint num_indexes = 0;
gint num_other = 0;
features =
gst_registry_get_feature_list_by_plugin (gst_registry_get_default (),
plugin->desc.name);
while (features) {
GstPluginFeature *feature;
feature = GST_PLUGIN_FEATURE (features->data);
if (GST_IS_ELEMENT_FACTORY (feature)) {
GstElementFactory *factory;
factory = GST_ELEMENT_FACTORY (feature);
n_print (" %s: %s\n", GST_PLUGIN_FEATURE_NAME (factory),
gst_element_factory_get_longname (factory));
num_elements++;
} else if (GST_IS_INDEX_FACTORY (feature)) {
GstIndexFactory *factory;
factory = GST_INDEX_FACTORY (feature);
n_print (" %s: %s\n", GST_OBJECT_NAME (factory), factory->longdesc);
num_indexes++;
} else if (GST_IS_TYPE_FIND_FACTORY (feature)) {
GstTypeFindFactory *factory;
factory = GST_TYPE_FIND_FACTORY (feature);
if (factory->extensions) {
guint i = 0;
g_print ("%s: %s: ", plugin->desc.name,
gst_plugin_feature_get_name (feature));
while (factory->extensions[i]) {
g_print ("%s%s", i > 0 ? ", " : "", factory->extensions[i]);
i++;
}
g_print ("\n");
} else
g_print ("%s: %s: no extensions\n", plugin->desc.name,
gst_plugin_feature_get_name (feature));
num_types++;
} else {
n_print (" %s (%s)\n", gst_object_get_name (GST_OBJECT (feature)),
g_type_name (G_OBJECT_TYPE (feature)));
num_other++;
}
num_features++;
features = g_list_next (features);
}
n_print ("\n");
n_print (" %d features:\n", num_features);
if (num_elements > 0)
n_print (" +-- %d elements\n", num_elements);
if (num_types > 0)
n_print (" +-- %d types\n", num_types);
if (num_indexes > 0)
n_print (" +-- %d indexes\n", num_indexes);
if (num_other > 0)
n_print (" +-- %d other objects\n", num_other);
n_print ("\n");
}
