//finds the visualisation factory
GstElementFactory *
setup_vis_find_factory (const gchar *vis_name)
{
GstElementFactory *fac = NULL;
GList *l, *features;
features = get_visualization_features ();
/* find element factory using long name */
for (l = features; l != NULL; l = l->next) {
GstElementFactory *f = GST_ELEMENT_FACTORY (l->data);
//long name
if (f && strcmp (vis_name, gst_element_factory_get_longname (f)) == 0) {
fac = f;
goto done;
}
//short name
else if (f && strcmp (vis_name, GST_OBJECT_NAME (f)) == 0) {
fac = f;
goto done;
}
}
done:
g_list_free (features);
return fac;
}
static gpointer
rb_audiocd_load_songs (RBAudioCdSource *source)
{
RBAudioCdSourcePrivate *priv = AUDIOCD_SOURCE_GET_PRIVATE (source);
RhythmDB *db;
GVolume *volume;
g_object_get (source, "volume", &volume, NULL);
priv->device_path = g_volume_get_identifier (volume,
G_VOLUME_IDENTIFIER_KIND_UNIX_DEVICE);
g_object_unref (volume);
db = get_db_for_source (source);
rb_debug ("loading Audio CD from %s", priv->device_path);
/* create a cdda gstreamer element, to get cd info from */
priv->cdda = gst_element_make_from_uri (GST_URI_SRC, "cdda://", NULL);
if (!priv->cdda) {
gdk_threads_enter ();
rb_error_dialog (NULL, _("Couldn't load Audio CD"),
_("Rhythmbox could not get access to the CD device."));
gdk_threads_leave ();
goto error_out;
}
rb_debug ("cdda longname: %s", gst_element_factory_get_longname (gst_element_get_factory (priv->cdda)));
g_object_set (G_OBJECT (priv->cdda), "device", priv->device_path, NULL);
priv->pipeline = gst_pipeline_new ("pipeline");
priv->fakesink = gst_element_factory_make ("fakesink", "fakesink");
gst_bin_add_many (GST_BIN (priv->pipeline), priv->cdda, priv->fakesink, NULL);
gst_element_link (priv->cdda, priv->fakesink);
/* disable paranoia (if using cdparanoia) since we're only reading track information here.
* this reduces cdparanoia's cache size, so the process is much faster.
*/
if (g_object_class_find_property (G_OBJECT_GET_CLASS (source), "paranoia-mode"))
g_object_set (source, "paranoia-mode", 0, NULL);
if (rb_audiocd_scan_songs (source, db))
rb_audiocd_load_metadata (source, db);
error_out:
g_object_unref (db);
g_object_unref (source);
return NULL;
}
static gboolean
mixer_filter_func (GstMixer * mixer, gpointer user_data)
{
GstElementFactory *factory;
const gchar *long_name;
gchar *devname = NULL;
gchar *name;
gint *p_count = (gint *) user_data;
/* fetch name */
if (g_object_class_find_property (G_OBJECT_GET_CLASS (G_OBJECT (mixer)),
"device-name")) {
g_object_get (mixer, "device-name", &devname, NULL);
GST_DEBUG ("device name: %s", GST_STR_NULL (devname));
} else {
devname = NULL;
GST_DEBUG ("device name unknown, no 'device-name' property");
}
factory = gst_element_get_factory (GST_ELEMENT (mixer));
long_name = gst_element_factory_get_longname (factory);
if (devname) {
name = g_strdup_printf ("%s (%s)", devname, long_name);
g_free (devname);
} else {
gchar *title;
*p_count += 1;
title = g_strdup_printf (_("Unknown Volume Control %d"), *p_count);
name = g_strdup_printf ("%s (%s)", title, long_name);
g_free (title);
}
g_object_set_data_full (G_OBJECT (mixer),
"mate-volume-control-name",
name,
(GDestroyNotify) g_free);
GST_DEBUG ("Adding '%s' to list of available mixers", name);
gst_element_set_state (GST_ELEMENT (mixer), GST_STATE_NULL);
return TRUE; /* add mixer to list */
}
void
GstUtils::element_factory_list_to_g_enum(GEnumValue *target_enum,
GstElementFactoryListType type,
GstRank minrank,
bool insert_none_first,
const std::vector<std::string> &black_list) {
GList *element_list =
gst_element_factory_list_get_elements(type, minrank);
GList *iter = element_list;
gint i = 0;
if (insert_none_first) {
target_enum[0].value = 0;
target_enum[0].value_name = g_strdup("None");
target_enum[0].value_nick = g_strdup("None");
i++;
}
while (iter != nullptr) {
if (black_list.end() == std::find(
black_list.begin(),
black_list.end(),
gst_plugin_feature_get_name((GstPluginFeature *) iter->data))){
target_enum[i].value = i;
target_enum[i].value_name =
g_strdup(gst_element_factory_get_longname((GstElementFactory *) iter->data));
target_enum[i].value_nick =
g_strdup(gst_plugin_feature_get_name((GstPluginFeature *) iter->data));
i++;
}
iter = g_list_next(iter);
}
target_enum[i].value = 0;
target_enum[i].value_name = nullptr;
target_enum[i].value_nick = nullptr;
gst_plugin_feature_list_free(element_list);
}
void
add_longname (GstElementFactory *f, GList ** to)
{
*to = g_list_append (*to, (gchar *) gst_element_factory_get_longname (f));
}
static void
gst_audio_mixer_filter_probe_feature (GstAudioMixerFilterFunc filter_func,
GstElementFactory * factory,
GList ** p_collection, gboolean first, gpointer user_data)
{
GstElement *element;
GST_DEBUG ("probing %s ...", gst_element_factory_get_longname (factory));
/* create element */
element = gst_element_factory_create (factory, NULL);
if (element == NULL) {
GST_DEBUG ("could not create element from factory");
return;
}
GST_DEBUG ("created element %s (%p)", GST_ELEMENT_NAME (element), element);
if (GST_IS_PROPERTY_PROBE (element)) {
GstPropertyProbe *probe;
const GParamSpec *devspec;
probe = GST_PROPERTY_PROBE (element);
GST_DEBUG ("probing available devices ...");
if ((devspec = gst_property_probe_get_property (probe, "device"))) {
GValueArray *array;
if ((array = gst_property_probe_probe_and_get_values (probe, devspec))) {
guint n;
GST_DEBUG ("there are %d available devices", array->n_values);
/* set all devices and test for mixer */
for (n = 0; n < array->n_values; n++) {
GValue *device;
/* set this device */
device = g_value_array_get_nth (array, n);
g_object_set_property (G_OBJECT (element), "device", device);
GST_DEBUG ("trying device %s ..", g_value_get_string (device));
if (gst_audio_mixer_filter_check_element (element)) {
gst_audio_mixer_filter_do_filter (filter_func, factory, &element,
p_collection, user_data);
if (first && *p_collection != NULL) {
GST_DEBUG ("Stopping after first found mixer, as requested");
break;
}
}
}
g_value_array_free (array);
}
}
} else {
GST_DEBUG ("element does not support the property probe interface");
if (gst_audio_mixer_filter_check_element (element)) {
gst_audio_mixer_filter_do_filter (filter_func, factory, &element,
p_collection, user_data);
}
}
if (element) {
gst_element_set_state (element, GST_STATE_NULL);
gst_object_unref (element);
}
}
int
main (int argc,
char *argv[])
{
/* Initialisation */
gst_init (&argc, &argv);
GList *element_list = gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_DEPAYLOADER,
GST_RANK_NONE);
GList *iter = element_list;
while (iter != NULL)
{
g_print ("+++++\n");
g_print ("%s -- ", gst_element_factory_get_longname ((GstElementFactory *)iter->data));
g_print ("%s\n", gst_plugin_feature_get_name ((GstPluginFeature *)iter->data));
const GList *static_pads =
gst_element_factory_get_static_pad_templates ((GstElementFactory *)iter->data);
while (NULL != static_pads)
{
GstStaticPadTemplate *pad = (GstStaticPadTemplate *)static_pads->data;
//the following is EMPTY gchar *caps_str = gst_caps_to_string (&pad->static_caps.caps);
//g_free (caps_str);
/* g_print ("string: %s\n", */
/* pad->static_caps.string); */
GstCaps *caps = gst_caps_from_string (pad->static_caps.string);
guint caps_size = gst_caps_get_size (caps);
if (! gst_caps_is_any (caps))
for (guint i = caps_size; i > 0; i--)
{
GstStructure *caps_struct = gst_caps_get_structure (caps, i-1);
if (gst_structure_has_name (caps_struct,"application/x-rtp"))
{
g_print ("string: %s\n",
gst_structure_to_string (caps_struct));
{//payload
const GValue *val = gst_structure_get_value (caps_struct, "payload");
if (NULL != val)
{
//g_print ("payload struct type %s\n", G_VALUE_TYPE_NAME (val));
if(GST_VALUE_HOLDS_INT_RANGE(val))
{
g_print ("payload min %d\n", gst_value_get_int_range_min (val));
}
if (GST_VALUE_HOLDS_LIST(val))
{
for (guint i = 0; i < gst_value_list_get_size (val); i++)
{
const GValue *item_val = gst_value_list_get_value (val, i);
g_print ("payload list %d\n", g_value_get_int (item_val));
}
}
if (G_VALUE_HOLDS_INT (val))
{
g_print ("payload int %d\n", g_value_get_int (val));
}
}
}
{ //encodeing-name
const GValue *val = gst_structure_get_value (caps_struct, "encoding-name");
if (NULL != val)
{
//g_print ("encoding-name struct type %s\n", G_VALUE_TYPE_NAME (val));
if (GST_VALUE_HOLDS_LIST(val))
{
for (guint i = 0; i < gst_value_list_get_size (val); i++)
{
const GValue *item_val = gst_value_list_get_value (val, i);
g_print ("encoding-name list %s\n", g_value_get_string (item_val));
}
}
if (G_VALUE_HOLDS_STRING (val))
{
g_print ("encoding-name string %s\n", g_value_get_string (val));
}
}
}
{//media
const GValue *val = gst_structure_get_value (caps_struct, "media");
if (NULL != val)
{
if (GST_VALUE_HOLDS_LIST(val))
{
for (guint i = 0; i < gst_value_list_get_size (val); i++)
{
const GValue *item_val = gst_value_list_get_value (val, i);
g_print ("media list %s\n", g_value_get_string (item_val));
}
}
if (G_VALUE_HOLDS_STRING (val))
{
g_print ("media string %s\n", g_value_get_string (val));
}
}
}
{//clock rate
const GValue *val = gst_structure_get_value (caps_struct, "clock-rate");
if (NULL != val)
{
//g_print ("payload struct type %s\n", G_VALUE_TYPE_NAME (val));
if(GST_VALUE_HOLDS_INT_RANGE(val))
{
g_print ("clock-rate min %d\n", gst_value_get_int_range_min (val));
}
if (GST_VALUE_HOLDS_LIST(val))
{
for (guint i = 0; i < gst_value_list_get_size (val); i++)
{
const GValue *item_val = gst_value_list_get_value (val, i);
g_print ("clock-rate list %d\n", g_value_get_int (item_val));
}
}
if (G_VALUE_HOLDS_INT (val))
{
g_print ("clock-rate int %d\n", g_value_get_int (val));
}
}
}
/* g_print ("\nencoding-name %s\n", */
/* gst_structure_get_string (caps_struct, */
/* "encoding-name")); */
}
}
static_pads = g_list_next (static_pads);
gst_caps_unref (caps);
}
iter = g_list_next (iter);
}
gst_plugin_feature_list_free (element_list);
return 0;
}
static VALUE
get_long_name(VALUE self)
{
return CSTR2RVAL(gst_element_factory_get_longname(SELF(self)));
}
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;
}
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");
}
int main(int argc, char *argv[]) {
GstElement *pipeline, *vis_plugin;
GstBus *bus;
GstMessage *msg;
GList *list, *walk;
GstElementFactory *selected_factory = NULL;
guint flags;
char *pipeline_str;
gboolean list_plugins = FALSE;
gchar *plugin_name = NULL;
GError *error = NULL;
GOptionContext *context;
GOptionEntry options[] = {
{ "list-plugins", 'l', 0, G_OPTION_ARG_NONE, &list_plugins,
"list available plugins and exits", NULL },
{ "plugin", 'p', 0, G_OPTION_ARG_STRING, &plugin_name,
"set the desired plugin", NULL },
{ NULL }
};
context = g_option_context_new("");
g_option_context_add_main_entries(context, options, "");
if (!g_option_context_parse(context, &argc, &argv, &error)) {
g_print("option parsing failed: %s\n", error->message);
return -1;
}
g_option_context_free(context);
if (argc > 1) {
if (g_str_has_prefix(argv[1], "http://") ||
g_str_has_prefix(argv[1], "ftp://"))
pipeline_str = g_strdup_printf("%s uri=\"%s\"", PLAYBIN, argv[1]);
else if (argv[1][0] == '~')
pipeline_str = g_strdup_printf("%s uri=\"file://%s%s\"", PLAYBIN,
g_get_home_dir(), argv[1]+1);
else if (g_file_test(argv[1], G_FILE_TEST_IS_REGULAR))
pipeline_str = g_strdup_printf("playbin uri=\"file://%s\"", argv[1]);
else
pipeline_str = g_strdup_printf("%s uri=%s", PLAYBIN, DEFAULT_URI);
} else
pipeline_str = g_strdup_printf("%s uri=%s", PLAYBIN, DEFAULT_URI);
gst_init(&argc, &argv);
list = gst_registry_feature_filter(GET_PLUGIN_REGISTRY,
filter_vis_features, FALSE, NULL);
if (plugin_name == NULL)
plugin_name = "GOOM";
g_print("Available visualization plugins:\n");
for (walk = list; walk != NULL; walk = g_list_next(walk)) {
const gchar *name;
GstElementFactory *factory;
factory = GST_ELEMENT_FACTORY(walk->data);
name = gst_element_factory_get_longname(factory);
g_print(" %s\n", name);
if (selected_factory == NULL || g_str_has_prefix(name, plugin_name)) {
selected_factory = factory;
}
}
/* Don't use the factory if it's still empty */
/* e.g. no visualization plugins found */
if (!selected_factory) {
g_print("No visualization plugins found!\n");
return -1;
}
if (list_plugins == TRUE)
return 0;
g_print("Selected '%s'\n",
gst_element_factory_get_longname(selected_factory));
vis_plugin = gst_element_factory_create(selected_factory, NULL);
if (!vis_plugin)
return -1;
pipeline = gst_parse_launch(pipeline_str, NULL);
g_object_get(pipeline, "flags", &flags, NULL);
flags |= GST_PLAY_FLAG_VIS;
g_object_set(pipeline, "flags", flags, NULL);
g_object_set(pipeline, "vis-plugin", vis_plugin, NULL);
gst_element_set_state(pipeline, GST_STATE_PLAYING);
bus = gst_element_get_bus(pipeline);
msg = gst_bus_timed_pop_filtered(bus, GST_CLOCK_TIME_NONE,
GST_MESSAGE_ERROR | GST_MESSAGE_EOS);
if (msg != NULL)
gst_message_unref(msg);
gst_plugin_feature_list_free(list);
gst_object_unref(bus);
gst_element_set_state(pipeline, GST_STATE_NULL);
gst_object_unref(pipeline);
return 0;
}
