/* NB: try to mirror decodebin behavior */
static gboolean
swfdec_gst_feature_filter (GstPluginFeature *feature, gpointer caps, const gchar* klassname, gboolean autoplugonly)
{
const GList *walk;
const gchar *klass;
/* we only care about element factories */
if (!GST_IS_ELEMENT_FACTORY (feature))
return FALSE;
/* only decoders are interesting */
klass = gst_element_factory_get_klass (GST_ELEMENT_FACTORY (feature));
if (strstr (klass, klassname) == NULL)
return FALSE;
/* only select elements with autoplugging rank */
if (autoplugonly && gst_plugin_feature_get_rank (feature) < GST_RANK_MARGINAL)
return FALSE;
/* only care about the right sink caps */
for (walk = gst_element_factory_get_static_pad_templates (GST_ELEMENT_FACTORY (feature));
walk; walk = walk->next) {
GstStaticPadTemplate *template = walk->data;
/**
* gst_element_factory_get_author:
* @factory: a #GstElementFactory
*
* Gets the author for this factory.
*
* Returns: the author
*/
const gchar *
gst_element_factory_get_author (GstElementFactory * factory)
{
g_return_val_if_fail (GST_IS_ELEMENT_FACTORY (factory), NULL);
return factory->details.author;
}
static gboolean
cb_feature_filter (GstPluginFeature *feature,
gpointer data)
{
const gchar *klass;
guint rank;
/* we only care about element factories */
if (!GST_IS_ELEMENT_FACTORY (feature))
return FALSE;
/* only parsers, demuxers and decoders */
klass = gst_element_factory_get_klass (GST_ELEMENT_FACTORY (feature));
if (g_strrstr (klass, "Demux") == NULL &&
g_strrstr (klass, "Decoder") == NULL &&
g_strrstr (klass, "Parse") == NULL)
return FALSE;
/* only select elements with autoplugging rank */
rank = gst_plugin_feature_get_rank (feature);
if (rank < GST_RANK_MARGINAL)
return FALSE;
return TRUE;
}
/**
* gst_element_factory_get_uri_type:
* @factory: a #GstElementFactory
*
* Gets the type of URIs the element supports or #GST_URI_UNKNOWN if none.
*
* Returns: type of URIs this element supports
*/
gint
gst_element_factory_get_uri_type (GstElementFactory * factory)
{
g_return_val_if_fail (GST_IS_ELEMENT_FACTORY (factory), GST_URI_UNKNOWN);
return factory->uri_type;
}
/**
* gst_element_factory_get_description:
* @factory: a #GstElementFactory
*
* Gets the description for this factory.
*
* Returns: the description
*/
const gchar *
gst_element_factory_get_description (GstElementFactory * factory)
{
g_return_val_if_fail (GST_IS_ELEMENT_FACTORY (factory), NULL);
return factory->details.description;
}
/**
* gst_element_factory_get_num_pad_templates:
* @factory: a #GstElementFactory
*
* Gets the number of pad_templates in this factory.
*
* Returns: the number of pad_templates
*/
guint
gst_element_factory_get_num_pad_templates (GstElementFactory * factory)
{
g_return_val_if_fail (GST_IS_ELEMENT_FACTORY (factory), 0);
return factory->numpadtemplates;
}
static gboolean match_element(GstPluginFeature *feature, gpointer gdata)
{
struct typeinfo *data = (struct typeinfo*)gdata;
GstElementFactory *factory;
const GList *list;
if (!GST_IS_ELEMENT_FACTORY(feature))
return FALSE;
factory = GST_ELEMENT_FACTORY(feature);
if (!strstr(gst_element_factory_get_klass(factory), data->type))
return FALSE;
for (list = gst_element_factory_get_static_pad_templates(factory); list; list = list->next) {
GstStaticPadTemplate *pad = (GstStaticPadTemplate*)list->data;
GstCaps *caps;
gboolean ret;
if (pad->direction != GST_PAD_SINK)
continue;
caps = gst_static_caps_get(&pad->static_caps);
ret = gst_caps_is_always_compatible(caps, data->caps);
gst_caps_unref(caps);
if (ret)
return TRUE;
}
return FALSE;
}
/**
* gst_element_factory_get_element_type:
* @factory: factory to get managed #GType from
*
* Get the #GType for elements managed by this factory. The type can
* only be retrieved if the element factory is loaded, which can be
* assured with gst_plugin_feature_load().
*
* Returns: the #GType for elements managed by this factory or 0 if
* the factory is not loaded.
*/
GType
gst_element_factory_get_element_type (GstElementFactory * factory)
{
g_return_val_if_fail (GST_IS_ELEMENT_FACTORY (factory), 0);
return factory->type;
}
/**
* gst_element_factory_get_static_pad_templates:
* @factory: a #GstElementFactory
*
* Gets the #GList of #GstStaticPadTemplate for this factory.
*
* Returns: (transfer none) (element-type Gst.StaticPadTemplate): the
* static pad templates
*/
const GList *
gst_element_factory_get_static_pad_templates (GstElementFactory * factory)
{
g_return_val_if_fail (GST_IS_ELEMENT_FACTORY (factory), NULL);
return factory->staticpadtemplates;
}
static void
setup (void)
{
GList *features, *f;
GList *plugins, *p;
gchar **ignorelist = NULL;
const gchar *STATE_IGNORE_ELEMENTS = NULL;
GstRegistry *def;
GST_DEBUG ("getting elements for package %s", PACKAGE);
STATE_IGNORE_ELEMENTS = g_getenv ("GST_STATE_IGNORE_ELEMENTS");
if (!g_getenv ("GST_NO_STATE_IGNORE_ELEMENTS") && STATE_IGNORE_ELEMENTS) {
GST_DEBUG ("Will ignore element factories: '%s'", STATE_IGNORE_ELEMENTS);
ignorelist = g_strsplit (STATE_IGNORE_ELEMENTS, " ", 0);
}
def = gst_registry_get ();
plugins = gst_registry_get_plugin_list (def);
for (p = plugins; p; p = p->next) {
GstPlugin *plugin = p->data;
if (strcmp (gst_plugin_get_source (plugin), PACKAGE) != 0)
continue;
features =
gst_registry_get_feature_list_by_plugin (def,
gst_plugin_get_name (plugin));
for (f = features; f; f = f->next) {
GstPluginFeature *feature = f->data;
const gchar *name = gst_plugin_feature_get_name (feature);
gboolean ignore = FALSE;
if (!GST_IS_ELEMENT_FACTORY (feature))
continue;
if (ignorelist) {
gchar **s;
for (s = ignorelist; s && *s; ++s) {
if (g_str_has_prefix (name, *s)) {
GST_DEBUG ("ignoring element %s", name);
ignore = TRUE;
}
}
if (ignore)
continue;
}
GST_DEBUG ("adding element %s", name);
elements = g_list_prepend (elements, (gpointer) g_strdup (name));
}
gst_plugin_feature_list_free (features);
}
gst_plugin_list_free (plugins);
g_strfreev (ignorelist);
}
/* Return TRUE if this is a Visualization element */
static gboolean filter_vis_features(GstPluginFeature *feature, gpointer data) {
GstElementFactory *factory;
if (!GST_IS_ELEMENT_FACTORY(feature))
return FALSE;
factory = GST_ELEMENT_FACTORY(feature);
if (!g_strrstr(gst_element_factory_get_klass(factory), "Visualization"))
return FALSE;
return TRUE;
}
/**
* __gst_element_factory_add_interface:
* @elementfactory: The elementfactory to add the interface to
* @interfacename: Name of the interface
*
* Adds the given interfacename to the list of implemented interfaces of the
* element.
*/
void
__gst_element_factory_add_interface (GstElementFactory * elementfactory,
const gchar * interfacename)
{
g_return_if_fail (GST_IS_ELEMENT_FACTORY (elementfactory));
g_return_if_fail (interfacename != NULL);
g_return_if_fail (interfacename[0] != '\0'); /* no empty string */
elementfactory->interfaces =
g_list_prepend (elementfactory->interfaces,
(gpointer) g_intern_string (interfacename));
}
static gboolean
element_filter (GstPluginFeature * feature, FilterData * data)
{
gboolean res;
/* we only care about element factories */
if (!GST_IS_ELEMENT_FACTORY (feature))
return FALSE;
res = gst_factory_list_is_type (GST_ELEMENT_FACTORY (feature), data->type);
return res;
}
static gboolean
filter_parsers (GstElementFactory * factory, gpointer user_data)
{
if (GST_IS_ELEMENT_FACTORY (factory) == FALSE)
return FALSE;
if (g_strrstr (gst_element_factory_get_klass (factory), "Parser")) {
if (gst_plugin_feature_get_rank (GST_PLUGIN_FEATURE (factory)) >=
GST_RANK_PRIMARY)
return TRUE;
}
return FALSE;
}
static gboolean
element_filter (GstPluginFeature * feature, FilterData * data)
{
gboolean res;
/* we only care about element factories */
if (G_UNLIKELY (!GST_IS_ELEMENT_FACTORY (feature)))
return FALSE;
res = (gst_plugin_feature_get_rank (feature) >= data->minrank) &&
gst_element_factory_list_is_type (GST_ELEMENT_FACTORY_CAST (feature),
data->type);
return res;
}
/**
* gst_element_factory_has_interface:
* @factory: a #GstElementFactory
* @interfacename: an interface name
*
* Check if @factory implements the interface with name @interfacename.
*
* Returns: #TRUE when @factory implement the interface.
*
* Since: 0.10.14
*/
gboolean
gst_element_factory_has_interface (GstElementFactory * factory,
const gchar * interfacename)
{
GList *walk;
g_return_val_if_fail (GST_IS_ELEMENT_FACTORY (factory), FALSE);
for (walk = factory->interfaces; walk; walk = g_list_next (walk)) {
gchar *iname = (gchar *) walk->data;
if (!strcmp (iname, interfacename))
return TRUE;
}
return FALSE;
}
static gboolean FactoryFilter(GstPluginFeature *aFeature, gpointer)
{
if (!GST_IS_ELEMENT_FACTORY(aFeature)) {
return FALSE;
}
// TODO _get_klass doesn't exist in 1.0
const gchar *className =
gst_element_factory_get_klass(GST_ELEMENT_FACTORY_CAST(aFeature));
if (!strstr(className, "Decoder") && !strstr(className, "Demux")) {
return FALSE;
}
return gst_plugin_feature_get_rank(aFeature) >= GST_RANK_MARGINAL;
}
void
iterate_plugins (GHashTable *hashtable)
{
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);
if (plugin->flags & GST_PLUGIN_FLAG_BLACKLISTED)
{
continue;
}
orig_features = features =
gst_registry_get_feature_list_by_plugin (gst_registry_get_default (),
plugin->desc.name);
while (features)
{
GstPluginFeature *feature;
if (G_UNLIKELY (features->data == NULL))
goto next;
feature = GST_PLUGIN_FEATURE (features->data);
if (GST_IS_ELEMENT_FACTORY (feature))
{
GstElementFactory *factory;
factory = GST_ELEMENT_FACTORY (feature);
iterate_plugins_elements (factory, hashtable);
}
next:
features = g_list_next (features);
}
gst_plugin_feature_list_free (orig_features);
}
gst_plugin_list_free (orig_plugins);
}
static gboolean FactoryFilter(GstPluginFeature *aFeature, gpointer)
{
if (!GST_IS_ELEMENT_FACTORY(aFeature)) {
return FALSE;
}
const gchar *className =
gst_element_factory_get_klass(GST_ELEMENT_FACTORY_CAST(aFeature));
if (!strstr(className, "Decoder") && !strstr(className, "Demux") &&
!strstr(className, "Parser")) {
return FALSE;
}
return
gst_plugin_feature_get_rank(aFeature) >= GST_RANK_MARGINAL &&
!GStreamerFormatHelper::IsPluginFeatureBlacklisted(aFeature);
}
static gboolean FactoryFilter(GstPluginFeature *aFeature, gpointer)
{
if (!GST_IS_ELEMENT_FACTORY(aFeature)) {
return FALSE;
}
const gchar *className =
gst_element_factory_get_klass(GST_ELEMENT_FACTORY_CAST(aFeature));
// NB: We skip filtering parsers here, because adding them to
// the list can give false decoder positives to canPlayType().
if (!strstr(className, "Decoder") && !strstr(className, "Demux")) {
return FALSE;
}
return
gst_plugin_feature_get_rank(aFeature) >= GST_RANK_MARGINAL &&
!GStreamerFormatHelper::IsPluginFeatureBlocked(aFeature);
}
gboolean sink_factory_filter(GstPluginFeature* feature, gpointer data) {
GstCaps* caps = (GstCaps*)data;
if (!GST_IS_ELEMENT_FACTORY(feature)) return FALSE;
const GList* static_pads =
gst_element_factory_get_static_pad_templates(GST_ELEMENT_FACTORY(feature));
int not_any_number = 0;
for (GList* item = (GList*)static_pads; item; item = item->next) {
GstStaticPadTemplate* padTemplate = (GstStaticPadTemplate*)item->data;
GstPadTemplate* pad = gst_static_pad_template_get(padTemplate);
GstCaps* padCaps = gst_pad_template_get_caps(pad);
if (!gst_caps_is_any(padCaps)) not_any_number++;
}
if (not_any_number == 0) return FALSE;
if (!gst_element_factory_list_is_type(GST_ELEMENT_FACTORY(feature),
GST_ELEMENT_FACTORY_TYPE_DECODABLE))
return FALSE;
if (!gst_element_factory_can_sink_all_caps(GST_ELEMENT_FACTORY(feature), caps)) return FALSE;
return TRUE;
}
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 gboolean
gst_rtsp_ext_list_filter (GstPluginFeature * feature, gpointer user_data)
{
GstElementFactory *factory;
guint rank;
/* we only care about element factories */
if (!GST_IS_ELEMENT_FACTORY (feature))
return FALSE;
factory = GST_ELEMENT_FACTORY (feature);
if (!gst_element_factory_has_interface (factory, "GstRTSPExtension"))
return FALSE;
/* only select elements with autoplugging rank */
rank = gst_plugin_feature_get_rank (feature);
if (rank < GST_RANK_MARGINAL)
return FALSE;
return TRUE;
}
static gboolean
gst_auto_video_src_factory_filter (GstPluginFeature * feature, gpointer data)
{
guint rank;
const gchar *klass;
/* we only care about element factories */
if (!GST_IS_ELEMENT_FACTORY (feature))
return FALSE;
/* video sources */
klass = gst_element_factory_get_klass (GST_ELEMENT_FACTORY (feature));
if (!(strstr (klass, "Source") && strstr (klass, "Video")))
return FALSE;
/* only select elements with autoplugging rank */
rank = gst_plugin_feature_get_rank (feature);
if (rank < GST_RANK_MARGINAL)
return FALSE;
return TRUE;
}
/**
* gst_element_factory_get_documentation_uri:
* @factory: a #GstElementFactory
*
* Gets documentation uri for this factory if set.
*
* Since: 0.10.31
*
* Returns: the documentation uri
*/
const gchar *
gst_element_factory_get_documentation_uri (GstElementFactory * factory)
{
g_return_val_if_fail (GST_IS_ELEMENT_FACTORY (factory), NULL);
return gst_element_factory_get_meta_data (factory, "doc-uri");
}
static void
print_all_uri_handlers (void)
{
GList *plugins, *p, *features, *f;
plugins = gst_registry_get_plugin_list (gst_registry_get ());
for (p = plugins; p; p = p->next) {
GstPlugin *plugin = (GstPlugin *) (p->data);
features =
gst_registry_get_feature_list_by_plugin (gst_registry_get (),
gst_plugin_get_name (plugin));
for (f = features; f; f = f->next) {
GstPluginFeature *feature = GST_PLUGIN_FEATURE (f->data);
if (GST_IS_ELEMENT_FACTORY (feature)) {
GstElementFactory *factory;
GstElement *element;
factory = GST_ELEMENT_FACTORY (gst_plugin_feature_load (feature));
if (!factory) {
g_print ("element plugin %s couldn't be loaded\n",
gst_plugin_get_name (plugin));
continue;
}
element = gst_element_factory_create (factory, NULL);
if (!element) {
g_print ("couldn't construct element for %s for some reason\n",
GST_OBJECT_NAME (factory));
gst_object_unref (factory);
continue;
}
if (GST_IS_URI_HANDLER (element)) {
const gchar *const *uri_protocols;
const gchar *dir;
gchar *joined;
switch (gst_uri_handler_get_uri_type (GST_URI_HANDLER (element))) {
case GST_URI_SRC:
dir = "read";
break;
case GST_URI_SINK:
dir = "write";
break;
default:
dir = "unknown";
break;
}
uri_protocols =
gst_uri_handler_get_protocols (GST_URI_HANDLER (element));
joined = g_strjoinv (", ", (gchar **) uri_protocols);
g_print ("%s (%s, rank %u): %s\n",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)), dir,
gst_plugin_feature_get_rank (GST_PLUGIN_FEATURE (factory)),
joined);
g_free (joined);
}
gst_object_unref (element);
gst_object_unref (factory);
}
}
gst_plugin_feature_list_free (features);
}
gst_plugin_list_free (plugins);
}
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, 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 gboolean
rsndec_factory_filter (GstPluginFeature * feature, RsnDecFactoryFilterCtx * ctx)
{
GstElementFactory *factory;
guint rank;
const gchar *klass;
const GList *templates;
GList *walk;
gboolean can_sink = FALSE;
/* we only care about element factories */
if (!GST_IS_ELEMENT_FACTORY (feature))
return FALSE;
factory = GST_ELEMENT_FACTORY (feature);
klass = gst_element_factory_get_klass (factory);
/* only decoders can play */
if (strstr (klass, "Decoder") == NULL)
return FALSE;
/* only select elements with autoplugging rank */
rank = gst_plugin_feature_get_rank (feature);
if (rank < GST_RANK_MARGINAL)
return FALSE;
/* See if the element has a sink pad that can possibly sink this caps */
/* get the templates from the element factory */
templates = gst_element_factory_get_static_pad_templates (factory);
for (walk = (GList *) templates; walk && !can_sink; walk = g_list_next (walk)) {
GstStaticPadTemplate *templ = walk->data;
/* we only care about the sink templates */
if (templ->direction == GST_PAD_SINK) {
GstCaps *intersect;
GstCaps *tmpl_caps;
/* try to intersect the caps with the caps of the template */
tmpl_caps = gst_static_caps_get (&templ->static_caps);
intersect = gst_caps_intersect (ctx->desired_caps, tmpl_caps);
gst_caps_unref (tmpl_caps);
/* check if the intersection is empty */
if (!gst_caps_is_empty (intersect)) {
/* non empty intersection, we can use this element */
can_sink = TRUE;
ctx->decoder_caps = gst_caps_merge (ctx->decoder_caps, intersect);
} else
gst_caps_unref (intersect);
}
}
if (can_sink) {
GST_DEBUG ("Found decoder element %s (%s)",
gst_element_factory_get_longname (factory),
gst_plugin_feature_get_name (feature));
}
return can_sink;
}
/**
* gst_element_factory_get_icon_name:
* @factory: a #GstElementFactory
*
* Gets icon name for this factory if set.
*
* Since: 0.10.31
*
* Returns: the icon name
*/
const gchar *
gst_element_factory_get_icon_name (GstElementFactory * factory)
{
g_return_val_if_fail (GST_IS_ELEMENT_FACTORY (factory), NULL);
return gst_element_factory_get_meta_data (factory, "icon-name");
}