int
iterate_plugins_elements (GstElementFactory *factory, GHashTable *hashtable)
{
GstElement *element;
const GList *pads;
GstStaticPadTemplate *padtemplate;
const GstCaps * caps;
int i;
factory =
GST_ELEMENT_FACTORY (gst_plugin_feature_load (GST_PLUGIN_FEATURE
(factory)));
if (!factory)
{
g_error ("element plugin couldn't be loaded");
return -1;
}
element = gst_element_factory_create (factory, NULL);
if (!element)
{
g_error ("couldn't construct element for some reason");
return -1;
}
if (factory->numpadtemplates)
{
pads = factory->staticpadtemplates;
while (pads)
{
padtemplate = (GstStaticPadTemplate *) (pads->data);
pads = g_list_next (pads);
if (padtemplate->direction == GST_PAD_SINK
&& padtemplate->presence == GST_PAD_ALWAYS
&& padtemplate->static_caps.string) {
caps = gst_static_caps_get (&padtemplate->static_caps);
if (caps != NULL && !gst_caps_is_any (caps) && !gst_caps_is_empty (caps))
{
for (i = 0; i < gst_caps_get_size (caps); i++)
{
GstStructure *structure = gst_caps_get_structure (caps, i);
const gchar *mime = gst_structure_get_name (structure);
if (g_str_has_prefix (mime, "audio"))
{
g_hash_table_insert(hashtable, (gpointer)mime, (gpointer)&ONE);
}
}
}
}
}
}
gst_object_unref (element);
gst_object_unref (factory);
return 0;
}
int
main (int argc,
char *argv[])
{
GstElementFactory *factory;
GstElement * element;
/* init GStreamer */
gst_init (&argc, &argv);
/* create element, method #2 */
factory = gst_element_factory_find ("fakesrc");
if (!factory) {
g_print ("Failed to find factory of type 'fakesrc'\n");
return -1;
}
element = gst_element_factory_create (factory, "source");
if (!element) {
g_print ("Failed to create element, even though its factory exists!\n");
return -1;
}
gst_object_unref (GST_OBJECT (element));
return 0;
}
static GstElement *
create_parser_for_caps (const GstCaps * caps)
{
GList *parser_list, *filtered_list, *l;
GstElementFactory *parser_factory = NULL;
GstElement *parser = NULL;
parser_list =
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_PARSER,
GST_RANK_NONE);
filtered_list =
gst_element_factory_list_filter (parser_list, caps, GST_PAD_SINK, FALSE);
for (l = filtered_list; l != NULL && parser_factory == NULL; l = l->next) {
parser_factory = GST_ELEMENT_FACTORY (l->data);
if (gst_element_factory_get_num_pad_templates (parser_factory) != 2)
parser_factory = NULL;
}
if (parser_factory != NULL) {
parser = gst_element_factory_create (parser_factory, NULL);
} else {
parser = gst_element_factory_make ("capsfilter", NULL);
}
gst_plugin_feature_list_free (filtered_list);
gst_plugin_feature_list_free (parser_list);
return parser;
}
static GstElement *
find_demuxer (GstCaps * caps)
{
GList *factories =
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_DEMUXER,
GST_RANK_MARGINAL);
GList *compat_elements;
GstElement *e = NULL;
if (factories == NULL)
return NULL;
compat_elements =
gst_element_factory_list_filter (factories, caps, GST_PAD_SINK, TRUE);
if (compat_elements) {
/* Just take the first (highest ranked) option */
GstElementFactory *factory =
GST_ELEMENT_FACTORY_CAST (compat_elements->data);
e = gst_element_factory_create (factory, NULL);
gst_plugin_feature_list_free (compat_elements);
}
if (factories)
gst_plugin_feature_list_free (factories);
return e;
}
// setups audio visualization
// a modified version of totem's bacon video widget
static void
setup_vis (gstPlay *play)
{
if (play->xid == 0)
return;
GstElement *vis_bin = NULL;
GstElement *vis_element = NULL;
GstElement *vis_capsfilter = NULL;
GstPad *pad = NULL;
GstElementFactory *fac = NULL;
fac = setup_vis_find_factory (play->vis_name);
if (fac == NULL)
goto beach; //cant find the visualisation
vis_element = gst_element_factory_create (fac, "vis_element");
if (!GST_IS_ELEMENT (vis_element))
goto beach; //cant create visualisation element
vis_capsfilter = gst_element_factory_make ("capsfilter", "vis_capsfilter");
if (!GST_IS_ELEMENT (vis_capsfilter))
{
gst_object_unref (vis_element);
goto beach; //cant create visualisation capsfilter element
}
vis_bin = gst_bin_new ("vis_bin");
if (!GST_IS_ELEMENT (vis_bin))
{
gst_object_unref (vis_element);
gst_object_unref (vis_capsfilter);
goto beach; //cant create visualisation bin
}
gst_bin_add_many (GST_BIN (vis_bin), vis_element, vis_capsfilter, NULL);
// sink ghostpad
pad = gst_element_get_static_pad (vis_element, "sink");
gst_element_add_pad (vis_bin, gst_ghost_pad_new ("sink", pad));
gst_object_unref (pad);
// source ghostpad, link with vis_element
pad = gst_element_get_static_pad (vis_capsfilter, "src");
gst_element_add_pad (vis_bin, gst_ghost_pad_new ("src", pad));
gst_element_link_pads (vis_element, "src", vis_capsfilter, "sink");
gst_object_unref (pad);
beach:
g_object_set (play->element, "vis-plugin", vis_bin, NULL);
return;
}
static void
on_tree_selection_changed (GObject * object, GstElementBrowser * browser)
{
GstElementFactory *factory;
GstElementBrowserElementTree *element_tree =
GST_ELEMENT_BROWSER_ELEMENT_TREE (object);
g_object_get (element_tree, "selected", &factory, NULL);
browser->selected = factory;
g_return_if_fail (factory != NULL);
gtk_label_set_text (GTK_LABEL (browser->longname),
gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_LONGNAME));
gtk_label_set_text (GTK_LABEL (browser->description),
gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_DESCRIPTION));
gtk_label_set_text (GTK_LABEL (browser->author),
gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_AUTHOR));
g_object_set (G_OBJECT (browser->padtemplates), "element-factory",
browser->selected, NULL);
if (browser->element)
gst_object_unref (GST_OBJECT (browser->element));
browser->element = gst_element_factory_create (browser->selected, NULL);
g_object_set (G_OBJECT (browser->pads), "element", browser->element, NULL);
}
static void
on_element_tree_select (GstElementBrowserElementTree * element_tree,
gpointer user_data)
{
GstElementFactory *selected_factory;
GstElement *element, *selected_bin;
GstEditorPalette *palette = GST_EDITOR_PALETTE (user_data);
GError *error = NULL;
g_return_if_fail (palette->canvas != NULL);
g_object_get (element_tree, "selected", &selected_factory, NULL);
selected_bin = gst_editor_canvas_get_selected_bin (palette->canvas, &error);
if (!selected_bin) {
gst_editor_popup_warning (error->message);
g_error_free (error);
return;
}
element = gst_element_factory_create (selected_factory, NULL);
g_return_if_fail (element != NULL);
gst_bin_add (GST_BIN (selected_bin), element);
}
static GstElement * try_codecs(GList *codecs, const gchar *name_prefix)
{
GList *l;
gchar *element_name;
for (l = codecs; l; l = l->next) {
GstElementFactory *f = l->data;
GstElement *e;
element_name = g_strdup_printf("%s_%s_%u", name_prefix,
gst_plugin_feature_get_name(GST_PLUGIN_FEATURE(f)),
get_unique_id());
e = gst_element_factory_create(f, element_name);
g_free(element_name);
if (!e)
continue;
/* Try setting to READY. If this fails the codec does not work, for
* example because the hardware codec is currently busy
*/
if (gst_element_set_state (e, GST_STATE_READY) != GST_STATE_CHANGE_SUCCESS) {
gst_element_set_state (e, GST_STATE_NULL);
gst_object_unref(e);
continue;
}
return e;
}
return NULL;
}
static int
print_element_info (GstElementFactory * factory, gboolean print_names)
{
GstElement *element;
gint maxlevel = 0;
factory =
GST_ELEMENT_FACTORY (gst_plugin_feature_load (GST_PLUGIN_FEATURE
(factory)));
if (!factory) {
g_print ("element plugin couldn't be loaded\n");
return -1;
}
element = gst_element_factory_create (factory, NULL);
if (!element) {
g_print ("couldn't construct element for some reason\n");
return -1;
}
if (print_names)
_name = g_strdup_printf ("%s: ", GST_PLUGIN_FEATURE (factory)->name);
else
_name = NULL;
print_factory_details_info (factory);
if (GST_PLUGIN_FEATURE (factory)->plugin_name) {
GstPlugin *plugin;
plugin = gst_registry_find_plugin (gst_registry_get_default (),
GST_PLUGIN_FEATURE (factory)->plugin_name);
if (plugin) {
print_plugin_info (plugin);
}
}
print_hierarchy (G_OBJECT_TYPE (element), 0, &maxlevel);
print_interfaces (G_OBJECT_TYPE (element));
print_pad_templates_info (element, factory);
print_element_flag_info (element);
print_implementation_info (element);
print_clocking_info (element);
print_index_info (element);
print_uri_handler_info (element);
print_pad_info (element);
print_element_properties_info (element);
print_signal_info (element);
print_children_info (element);
gst_object_unref (element);
gst_object_unref (factory);
g_free (_name);
return 0;
}
// static
void
MediaParserGst::cb_typefound(GstElement* typefind, guint /*probability*/,
GstCaps* caps, gpointer data)
{
print_caps(caps);
MediaParserGst* parser = static_cast<MediaParserGst*>(data);
GstElementFactory* demuxfactory = swfdec_gst_get_demuxer_factory(caps);
if (!demuxfactory) {
GstPad* srcpad = gst_element_get_static_pad(typefind, "src");
if (!srcpad) {
throw MediaException(_("MediaParserGst: couldn't get the typefind "
"src element."));
}
cb_pad_added(typefind, srcpad, parser);
gst_object_unref(GST_OBJECT(srcpad));
parser->_demux_probe_ended = true;
return;
}
// We have a factory, so create the demuxer.
GstElement* demuxer = gst_element_factory_create(demuxfactory, "demuxer");
gst_object_unref(GST_OBJECT(demuxfactory));
if (!demuxer) {
throw MediaException(_("MediaParserGst: couldn't create the "
"demuxer"));
}
gboolean success = gst_bin_add(GST_BIN(parser->_bin), demuxer);
if (!success) {
log_error(_("MediaParserGst: failed adding demuxer to bin."));
}
success = gst_element_link(typefind, demuxer);
if (!success) {
throw MediaException(_("MediaParserGst: failed adding demuxer "
"to bin."));
}
g_signal_connect(demuxer, "pad-added",
G_CALLBACK(MediaParserGst::cb_pad_added), parser);
g_signal_connect(demuxer, "no-more-pads",
G_CALLBACK(MediaParserGst::cb_no_more_pads), parser);
if (!gst_element_set_state(parser->_bin, GST_STATE_PLAYING) ==
GST_STATE_CHANGE_SUCCESS) {
throw GnashException(_("MediaParserGst could not change "
"element state"));
}
}
/*
* Method: create(element_name=nil)
* element_name: a name which will be attributed to the element.
*
* Creates a new element of the type defined by the element factory.
*
* If element name is ommited (or nil), then the element will receive a guaranteed
* unique name, consisting of the element factory name and a number.
* If name is given, it will be given the name supplied.
*
* Returns: a newly created object based on Gst::Element.
*/
static VALUE
create(int argc, VALUE *argv, VALUE self)
{
GstElement *element;
VALUE name;
rb_scan_args(argc, argv, "01", &name);
element = gst_element_factory_create(SELF(self), RVAL2CSTR_ACCEPT_NIL(name));
return GOBJ2RVAL(element);
}
GstElement *
rb_gst_encoding_profile_get_encoder (GstEncodingProfile *profile)
{
GstElementFactory *factory;
factory = get_audio_encoder_factory (profile);
if (factory == NULL) {
return NULL;
}
return gst_element_factory_create (factory, NULL);
}
static GstElement *
get_encoder (GstCaps * caps)
{
GstElementFactory *fact = get_encoder_factory (caps);
GstElement *res = NULL;
if (fact) {
res = gst_element_factory_create (fact, "internal-encoder");
gst_object_unref (fact);
}
return res;
}
GstElement *
rygel_gst_utils_get_rtp_depayloader (GstCaps *caps) {
GList *features;
GList *filtered;
const gchar *feature_name;
if (!rygel_gst_utils_need_rtp_depayloader (caps)) {
return NULL;
}
features = gst_element_factory_list_get_elements ((GstElementFactoryListType) GST_ELEMENT_FACTORY_TYPE_DEPAYLOADER, GST_RANK_NONE);
filtered = gst_element_factory_list_filter (features, caps, GST_PAD_SINK, FALSE);
gst_plugin_feature_list_free (features);
feature_name = gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (filtered->data));
/* If most "fitting" depayloader was rtpdepay skip it because it is
* just some kind of proxy.
*/
if (g_strcmp0 (feature_name, "rtpdepay") == 0) {
if (filtered->next) {
GstElement* element = gst_element_factory_create (GST_ELEMENT_FACTORY (filtered->next->data), NULL);
if (element) {
gst_object_ref_sink (element);
}
gst_plugin_feature_list_free (filtered);
return element;
}
return NULL;
} else {
GstElement* element = gst_element_factory_create (GST_ELEMENT_FACTORY (filtered->data), NULL);
if (element) {
gst_object_ref_sink (element);
}
gst_plugin_feature_list_free (filtered);
return element;
}
}
static GstElement *
get_encoder (const GstCaps * caps, GError ** err)
{
GList *encoders = NULL;
GList *filtered = NULL;
GstElementFactory *factory = NULL;
GstElement *encoder = NULL;
encoders =
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_ENCODER |
GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE, GST_RANK_NONE);
if (encoders == NULL) {
*err = g_error_new (GST_CORE_ERROR, GST_CORE_ERROR_MISSING_PLUGIN,
"Cannot find any image encoder");
goto fail;
}
GST_INFO ("got factory list %p", encoders);
gst_plugin_feature_list_debug (encoders);
filtered =
gst_element_factory_list_filter (encoders, caps, GST_PAD_SRC, FALSE);
GST_INFO ("got filtered list %p", filtered);
if (filtered == NULL) {
gchar *tmp = gst_caps_to_string (caps);
*err = g_error_new (GST_CORE_ERROR, GST_CORE_ERROR_MISSING_PLUGIN,
"Cannot find any image encoder for caps %s", tmp);
g_free (tmp);
goto fail;
}
gst_plugin_feature_list_debug (filtered);
factory = (GstElementFactory *) filtered->data;
GST_INFO ("got factory %p", factory);
encoder = gst_element_factory_create (factory, NULL);
GST_INFO ("created encoder element %p, %s", encoder,
gst_element_get_name (encoder));
fail:
if (encoders)
gst_plugin_feature_list_free (encoders);
if (filtered)
gst_plugin_feature_list_free (filtered);
return encoder;
}
static GstElement *
create_payloader_for_caps (const GstCaps * caps)
{
GList *payloader_list, *filtered_list, *l;
GstElementFactory *payloader_factory = NULL;
GstElement *payloader = NULL;
payloader_list =
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_PAYLOADER,
GST_RANK_NONE);
filtered_list =
gst_element_factory_list_filter (payloader_list, caps, GST_PAD_SRC,
FALSE);
for (l = filtered_list; l != NULL && payloader_factory == NULL; l = l->next) {
payloader_factory = GST_ELEMENT_FACTORY (l->data);
if (gst_element_factory_get_num_pad_templates (payloader_factory) != 2)
payloader_factory = NULL;
}
if (payloader_factory != NULL) {
payloader = gst_element_factory_create (payloader_factory, NULL);
}
if (payloader) {
GParamSpec *pspec;
pspec =
g_object_class_find_property (G_OBJECT_GET_CLASS (payloader),
"config-interval");
if (pspec != NULL && G_PARAM_SPEC_VALUE_TYPE (pspec) == G_TYPE_UINT) {
g_object_set (payloader, "config-interval", 1, NULL);
}
pspec =
g_object_class_find_property (G_OBJECT_GET_CLASS (payloader),
"picture-id-mode");
if (pspec != NULL && G_TYPE_IS_ENUM (G_PARAM_SPEC_VALUE_TYPE (pspec))) {
/* Set picture id so that remote peer can determine continuity if */
/* there are lost FEC packets and if it has to NACK them */
g_object_set (payloader, "picture-id-mode", PICTURE_ID_15_BIT, NULL);
}
}
gst_plugin_feature_list_free (filtered_list);
gst_plugin_feature_list_free (payloader_list);
return payloader;
}
static void
type_found_cb (GstElement * typefind, guint probability,
GstCaps * caps, InsanityTest * test)
{
GList *demuxers = NULL, *capable_demuxers = NULL;
GstPad *typefsrcpad = NULL;
typefsrcpad = gst_element_get_static_pad (typefind, "src");
/* First try to directly link to the decoder */
if (pad_added_cb (typefind, typefsrcpad, test) == TRUE)
return;
/* if we can't find a demuxer that is concidered as good
* (ie with rank primary, we just don't run the test */
demuxers = gst_element_factory_list_get_elements
(GST_ELEMENT_FACTORY_TYPE_DEMUXER, GST_RANK_PRIMARY);
if (demuxers == NULL) {
ERROR (test, "Could not find a demuxer concidered as good enough");
insanity_test_done (test);
goto done;
}
capable_demuxers = gst_element_factory_list_filter (demuxers, caps,
GST_PAD_SINK, FALSE);
glob_demuxer = gst_element_factory_create (capable_demuxers->data, "demuxer");
if (glob_demuxer == NULL) {
insanity_test_done (test);
goto done;
}
gst_bin_add (GST_BIN (glob_pipeline), glob_demuxer);
gst_element_link (glob_typefinder, glob_demuxer);
gst_element_sync_state_with_parent (glob_demuxer);
connect_element (test, glob_demuxer);
done:
gst_plugin_feature_list_free (demuxers);
gst_plugin_feature_list_free (capable_demuxers);
}
static GstElement *
gst_auto_audio_sink_create_element_with_pretty_name (GstAutoAudioSink * sink,
GstElementFactory * factory)
{
GstElement *element;
gchar *name, *marker;
marker = g_strdup (GST_OBJECT_NAME (factory));
if (g_str_has_suffix (marker, "sink"))
marker[strlen (marker) - 4] = '\0';
if (g_str_has_prefix (marker, "gst"))
g_memmove (marker, marker + 3, strlen (marker + 3) + 1);
name = g_strdup_printf ("%s-actual-sink-%s", GST_OBJECT_NAME (sink), marker);
g_free (marker);
element = gst_element_factory_create (factory, name);
g_free (name);
return element;
}
static void
ges_smart_mixer_init (GESSmartMixer * self)
{
GstPad *pad;
g_mutex_init (&self->lock);
self->mixer = gst_element_factory_create (ges_get_compositor_factory (),
"smart-mixer-mixer");
g_object_set (self->mixer, "background", 1, NULL);
gst_bin_add (GST_BIN (self), self->mixer);
pad = gst_element_get_static_pad (self->mixer, "src");
self->srcpad = gst_ghost_pad_new ("src", pad);
gst_pad_set_active (self->srcpad, TRUE);
gst_object_unref (pad);
gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
self->pads_infos = g_hash_table_new_full (g_direct_hash, g_direct_equal,
NULL, (GDestroyNotify) destroy_pad);
}
static GstElement *
gst_auto_video_src_create_element_with_pretty_name (GstAutoVideoSrc * src,
GstElementFactory * factory)
{
GstElement *element;
gchar *name, *marker;
marker = g_strdup (GST_PLUGIN_FEATURE (factory)->name);
if (g_str_has_suffix (marker, "src"))
marker[strlen (marker) - 4] = '\0';
if (g_str_has_prefix (marker, "gst"))
g_memmove (marker, marker + 3, strlen (marker + 3) + 1);
name = g_strdup_printf ("%s-actual-src-%s", GST_OBJECT_NAME (src), marker);
g_free (marker);
element = gst_element_factory_create (factory, name);
g_free (name);
return element;
}
static void
kms_enc_tree_bin_create_encoder_for_caps (KmsEncTreeBin * self,
const GstCaps * caps, gint target_bitrate)
{
GList *encoder_list, *filtered_list, *l;
GstElementFactory *encoder_factory = NULL;
encoder_list =
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_ENCODER,
GST_RANK_NONE);
/* HACK: Augment the openh264 rank */
for (l = encoder_list; l != NULL; l = l->next) {
encoder_factory = GST_ELEMENT_FACTORY (l->data);
if (g_str_has_prefix (GST_OBJECT_NAME (encoder_factory), "openh264")) {
encoder_list = g_list_remove (encoder_list, l->data);
encoder_list = g_list_prepend (encoder_list, encoder_factory);
break;
}
}
encoder_factory = NULL;
filtered_list =
gst_element_factory_list_filter (encoder_list, caps, GST_PAD_SRC, FALSE);
for (l = filtered_list; l != NULL && encoder_factory == NULL; l = l->next) {
encoder_factory = GST_ELEMENT_FACTORY (l->data);
if (gst_element_factory_get_num_pad_templates (encoder_factory) != 2)
encoder_factory = NULL;
}
if (encoder_factory != NULL) {
self->priv->enc = gst_element_factory_create (encoder_factory, NULL);
kms_enc_tree_bin_set_encoder_type (self);
configure_encoder (self->priv->enc, self->priv->enc_type, target_bitrate);
}
gst_plugin_feature_list_free (filtered_list);
gst_plugin_feature_list_free (encoder_list);
}
/**
* gst_element_factory_make:
* @factoryname: a named factory to instantiate
* @name: (allow-none): name of new element, or %NULL to automatically create
* a unique name
*
* Create a new element of the type defined by the given element factory.
* If name is %NULL, then the element will receive a guaranteed unique name,
* consisting of the element factory name and a number.
* If name is given, it will be given the name supplied.
*
* Returns: (transfer floating) (nullable): new #GstElement or %NULL
* if unable to create element
*/
GstElement *
gst_element_factory_make (const gchar * factoryname, const gchar * name)
{
GstElementFactory *factory;
GstElement *element;
g_return_val_if_fail (factoryname != NULL, NULL);
g_return_val_if_fail (gst_is_initialized (), NULL);
GST_LOG ("gstelementfactory: make \"%s\" \"%s\"",
factoryname, GST_STR_NULL (name));
factory = gst_element_factory_find (factoryname);
if (factory == NULL)
goto no_factory;
GST_LOG_OBJECT (factory, "found factory %p", factory);
element = gst_element_factory_create (factory, name);
if (element == NULL)
goto create_failed;
gst_object_unref (factory);
return element;
/* ERRORS */
no_factory:
{
GST_WARNING ("no such element factory \"%s\"!", factoryname);
return NULL;
}
create_failed:
{
GST_INFO_OBJECT (factory, "couldn't create instance!");
gst_object_unref (factory);
return NULL;
}
}
GstRTSPExtensionList *
gst_rtsp_ext_list_get (void)
{
GstRTSPExtensionList *result;
GList *walk;
result = g_new0 (GstRTSPExtensionList, 1);
for (walk = extensions; walk; walk = g_list_next (walk)) {
GstElementFactory *factory = GST_ELEMENT_FACTORY (walk->data);
GstElement *element;
element = gst_element_factory_create (factory, NULL);
if (!element) {
GST_ERROR ("could not create extension instance");
continue;
}
GST_DEBUG ("added extension interface for '%s'",
GST_ELEMENT_NAME (element));
result->extensions = g_list_prepend (result->extensions, element);
}
return result;
}
static void
gst_audio_mixer_filter_do_filter (GstAudioMixerFilterFunc filter_func,
GstElementFactory * factory,
GstElement ** p_element, GList ** p_collection, gpointer user_data)
{
/* so, the element is a mixer, let's see if the caller wants it */
if (filter_func != NULL) {
if (filter_func (GST_MIXER (*p_element), user_data) == TRUE) {
*p_collection = g_list_prepend (*p_collection, *p_element);
/* do not set state back to NULL here on purpose, caller
* might want to keep the mixer open */
*p_element = NULL;
}
} else {
gst_element_set_state (*p_element, GST_STATE_NULL);
*p_collection = g_list_prepend (*p_collection, *p_element);
*p_element = NULL;
}
/* create new element for further probing if the old one was cleared */
if (*p_element == NULL) {
*p_element = gst_element_factory_create (factory, NULL);
}
}
//static
void MediaParserGst::cb_pad_added(GstElement* /* element */, GstPad* new_pad,
gpointer data)
{
MediaParserGst* parser = static_cast<MediaParserGst*>(data);
GstCaps* caps = gst_pad_get_caps(new_pad);
print_caps(caps);
GstStructure* str = gst_caps_get_structure (caps, 0);
if (!str) {
log_error(_("MediaParserGst: couldn't get structure name."));
parser->link_to_fakesink(new_pad);
return;
}
const gchar* caps_name = gst_structure_get_name (str);
bool media_type_audio;
if (std::equal(caps_name, caps_name+5, "audio")) {
media_type_audio = true;
} else if (std::equal(caps_name, caps_name+5, "video")) {
media_type_audio = false;
} else {
log_error(_("MediaParserGst: ignoring stream of type %s."),
caps_name);
parser->link_to_fakesink(new_pad);
return;
}
gboolean parsed = false;
gboolean framed = false;
gst_structure_get_boolean(str, "parsed", &parsed);
gst_structure_get_boolean(str, "framed", &framed);
bool already_parsed = parsed || framed;
GstPad* final_pad = 0;
if (already_parsed) {
final_pad = new_pad;
} else {
// We'll try to find a parser, so that we will eventually receive
// timestamped buffers, on which the MediaParser system relies.
GstElementFactory* parserfactory = swfdec_gst_get_parser_factory (caps);
if (!parserfactory) {
log_error(_("MediaParserGst: Failed to find a parser (media: %s)."),
caps_name);
parser->link_to_fakesink(new_pad);
return;
}
GstElement* parserel = gst_element_factory_create (parserfactory, NULL);
gst_object_unref (parserfactory);
if (!parserel) {
log_error(_("MediaParserGst: Failed to find a parser. We'll continue, "
"but either audio or video will not work!"));
parser->link_to_fakesink(new_pad);
return;
}
gboolean success = gst_bin_add(GST_BIN(parser->_bin), parserel);
if (!success) {
gst_object_unref(parserel);
log_error(_("MediaParserGst: couldn't add parser."));
parser->link_to_fakesink(new_pad);
return;
}
GstPad* sinkpad = gst_element_get_static_pad (parserel, "sink");
assert(sinkpad);
GstPadLinkReturn ret = gst_pad_link(new_pad, sinkpad);
gst_object_unref(GST_OBJECT(sinkpad));
if (!GST_PAD_LINK_SUCCESSFUL(ret)) {
log_error(_("MediaParserGst: couldn't link parser."));
parser->link_to_fakesink(new_pad);
return;
}
final_pad = gst_element_get_static_pad (parserel, "src");
}
if (media_type_audio) {
parser->_audiosink = swfdec_gst_connect_sinkpad_by_pad (final_pad, caps);
if (!parser->_audiosink) {
log_error(_("MediaParserGst: couldn't link \"fake\" sink."));
return;
}
gst_pad_set_chain_function(parser->_audiosink,
MediaParserGst::cb_chain_func_audio);
g_object_set_data(G_OBJECT (parser->_audiosink), "mediaparser-obj",
parser);
LOG_ONCE(
log_unimpl("MediaParserGst won't set codec, sampleRate, "
"sampleSize, stereo and duration in AudioInfo");
);
AudioInfo* audioinfo = new AudioInfo(0, 0, 0, false, 0,
CODEC_TYPE_CUSTOM);
audioinfo->extra.reset(new ExtraInfoGst(caps));
parser->_audioInfo.reset(audioinfo);
log_debug(_("MediaParserGst: Linked audio source (type: %s)"), caps_name);
} else {
GstElement *
create_codec_bin_from_blueprint (const FsCodec *codec,
CodecBlueprint *blueprint, const gchar *name, gboolean is_send,
GError **error)
{
GstElement *codec_bin = NULL;
gchar *direction_str = (is_send == TRUE) ? "send" : "receive";
GList *walk = NULL;
GstElement *current_element = NULL;
GstElement *previous_element = NULL;
GList *pipeline_factory = NULL;
if (is_send)
pipeline_factory = blueprint->send_pipeline_factory;
else
pipeline_factory = blueprint->receive_pipeline_factory;
if (!pipeline_factory)
{
g_set_error (error, FS_ERROR, FS_ERROR_UNKNOWN_CODEC,
"The %s codec %s does not have a pipeline,"
" its probably a special codec",
fs_media_type_to_string (codec->media_type),
codec->encoding_name);
return NULL;
}
GST_DEBUG ("creating %s codec bin for id %d, pipeline_factory %p",
direction_str, codec->id, pipeline_factory);
if (is_send)
codec_bin = gst_bin_new (name);
else
codec_bin = fs_rtp_bin_error_downgrade_new (name);
for (walk = g_list_first (pipeline_factory); walk; walk = g_list_next (walk))
{
if (g_list_next (g_list_first (walk->data)))
{
/* We have to check some kind of configuration to see if we have a
favorite */
current_element = gst_element_factory_make ("autoconvert", NULL);
if (!current_element)
{
g_set_error (error, FS_ERROR, FS_ERROR_CONSTRUCTION,
"Could not create autoconvert element");
goto error;
}
g_object_set (current_element, "factories", walk->data, NULL);
} else {
current_element =
gst_element_factory_create (
GST_ELEMENT_FACTORY (g_list_first (walk->data)->data), NULL);
if (!current_element)
{
g_set_error (error, FS_ERROR, FS_ERROR_CONSTRUCTION,
"Could not create element for pt %d", codec->id);
goto error;
}
}
if (!gst_bin_add (GST_BIN (codec_bin), current_element))
{
g_set_error (error, FS_ERROR, FS_ERROR_CONSTRUCTION,
"Could not add new element to %s codec_bin for pt %d",
direction_str, codec->id);
goto error;
}
if (_g_object_has_property (G_OBJECT (current_element), "pt"))
g_object_set (current_element, "pt", codec->id,
NULL);
/* Lets create the ghost pads on the codec bin */
if (g_list_previous (walk) == NULL)
/* if its the first element of the codec bin */
if (!_create_ghost_pad (current_element,
is_send ? "src" : "sink", codec_bin, error))
goto error;
if (g_list_next (walk) == NULL)
/* if its the last element of the codec bin */
if (!_create_ghost_pad (current_element,
is_send ? "sink" : "src" , codec_bin, error))
goto error;
/* let's link them together using the specified media_caps if any
* this will ensure that multi-codec encoders/decoders will select the
* appropriate codec based on caps negotiation */
if (previous_element)
{
GstPad *sinkpad;
GstPad *srcpad;
GstPadLinkReturn ret;
if (is_send)
sinkpad = gst_element_get_static_pad (previous_element, "sink");
else
sinkpad = gst_element_get_static_pad (current_element, "sink");
if (!sinkpad)
{
g_set_error (error, FS_ERROR, FS_ERROR_CONSTRUCTION,
"Could not get the sink pad one of the elements in the %s codec bin"
" for pt %d", direction_str, codec->id);
goto error;
}
if (is_send)
srcpad = gst_element_get_static_pad (current_element, "src");
else
srcpad = gst_element_get_static_pad (previous_element, "src");
if (!srcpad)
{
g_set_error (error, FS_ERROR, FS_ERROR_CONSTRUCTION,
"Could not get the src pad one of the elements in the %s codec bin"
" for pt %d", direction_str, codec->id);
gst_object_unref (sinkpad);
goto error;
}
ret = gst_pad_link (srcpad, sinkpad);
gst_object_unref (srcpad);
gst_object_unref (sinkpad);
if (GST_PAD_LINK_FAILED (ret))
{
g_set_error (error, FS_ERROR, FS_ERROR_CONSTRUCTION,
"Could not link element inside the %s codec bin for pt %d",
direction_str, codec->id);
goto error;
}
}
previous_element = current_element;
}
return codec_bin;
error:
gst_object_unref (codec_bin);
return NULL;
}
static gint
print_element_info (GstElementFactory * factory)
{
GstElement *element;
#ifndef GST_DISABLE_LOADSAVE
GstObjectClass *gstobject_class;
#endif
GstElementClass *gstelement_class;
GList *pads;
GstPad *pad;
GstStaticPadTemplate *padtemplate;
gint maxlevel = 0;
element = gst_element_factory_create (factory, "element");
if (!element) {
g_print ("couldn't construct element for some reason\n");
return -1;
}
PUT_START_TAG (0, "element");
PUT_ESCAPED (1, "name", GST_PLUGIN_FEATURE_NAME (factory));
#ifndef GST_DISABLE_LOADSAVE
gstobject_class = GST_OBJECT_CLASS (G_OBJECT_GET_CLASS (element));
#endif
gstelement_class = GST_ELEMENT_CLASS (G_OBJECT_GET_CLASS (element));
PUT_START_TAG (1, "details");
PUT_ESCAPED (2, "long-name", factory->details.longname);
PUT_ESCAPED (2, "class", factory->details.klass);
PUT_ESCAPED (2, "description", factory->details.description);
PUT_ESCAPED (2, "authors", factory->details.author);
PUT_END_TAG (1, "details");
output_hierarchy (G_OBJECT_TYPE (element), 0, &maxlevel);
PUT_START_TAG (1, "pad-templates");
if (factory->numpadtemplates) {
pads = factory->staticpadtemplates;
while (pads) {
padtemplate = (GstStaticPadTemplate *) (pads->data);
pads = g_list_next (pads);
PUT_START_TAG (2, "pad-template");
PUT_ESCAPED (3, "name", padtemplate->name_template);
if (padtemplate->direction == GST_PAD_SRC)
PUT_ESCAPED (3, "direction", "src");
else if (padtemplate->direction == GST_PAD_SINK)
PUT_ESCAPED (3, "direction", "sink");
else
PUT_ESCAPED (3, "direction", "unknown");
if (padtemplate->presence == GST_PAD_ALWAYS)
PUT_ESCAPED (3, "presence", "always");
else if (padtemplate->presence == GST_PAD_SOMETIMES)
PUT_ESCAPED (3, "presence", "sometimes");
else if (padtemplate->presence == GST_PAD_REQUEST) {
PUT_ESCAPED (3, "presence", "request");
PUT_ESCAPED (3, "request-function",
GST_DEBUG_FUNCPTR_NAME (gstelement_class->request_new_pad));
} else
PUT_ESCAPED (3, "presence", "unknown");
if (padtemplate->static_caps.string) {
print_caps (gst_static_caps_get (&padtemplate->static_caps), 3);
}
PUT_END_TAG (2, "pad-template");
}
}
PUT_END_TAG (1, "pad-templates");
PUT_START_TAG (1, "element-flags");
PUT_END_TAG (1, "element-flags");
if (GST_IS_BIN (element)) {
PUT_START_TAG (1, "bin-flags");
PUT_END_TAG (1, "bin-flags");
}
PUT_START_TAG (1, "element-implementation");
PUT_STRING (2, "<state-change function=\"%s\"/>",
GST_DEBUG_FUNCPTR_NAME (gstelement_class->change_state));
#ifndef GST_DISABLE_LOADSAVE
PUT_STRING (2, "<save function=\"%s\"/>",
GST_DEBUG_FUNCPTR_NAME (gstobject_class->save_thyself));
PUT_STRING (2, "<load function=\"%s\"/>",
GST_DEBUG_FUNCPTR_NAME (gstobject_class->restore_thyself));
#endif
PUT_END_TAG (1, "element-implementation");
PUT_START_TAG (1, "clocking-interaction");
if (gst_element_requires_clock (element)) {
PUT_STRING (2, "<requires-clock/>");
}
if (gst_element_provides_clock (element)) {
GstClock *clock;
clock = gst_element_get_clock (element);
if (clock)
PUT_STRING (2, "<provides-clock name=\"%s\"/>", GST_OBJECT_NAME (clock));
}
PUT_END_TAG (1, "clocking-interaction");
if (gst_element_is_indexable (element)) {
PUT_STRING (1, "<indexing-capabilities/>");
}
PUT_START_TAG (1, "pads");
if (element->numpads) {
const GList *pads;
pads = element->pads;
while (pads) {
pad = GST_PAD (pads->data);
pads = g_list_next (pads);
PUT_START_TAG (2, "pad");
PUT_ESCAPED (3, "name", gst_pad_get_name (pad));
if (gst_pad_get_direction (pad) == GST_PAD_SRC)
PUT_ESCAPED (3, "direction", "src");
else if (gst_pad_get_direction (pad) == GST_PAD_SINK)
PUT_ESCAPED (3, "direction", "sink");
else
PUT_ESCAPED (3, "direction", "unknown");
if (pad->padtemplate)
PUT_ESCAPED (3, "template", pad->padtemplate->name_template);
PUT_START_TAG (3, "implementation");
if (pad->chainfunc)
PUT_STRING (4, "<chain-based function=\"%s\"/>",
GST_DEBUG_FUNCPTR_NAME (pad->chainfunc));
if (pad->getrangefunc)
PUT_STRING (4, "<get-range-based function=\"%s\"/>",
GST_DEBUG_FUNCPTR_NAME (pad->getrangefunc));
if (pad->eventfunc != gst_pad_event_default)
PUT_STRING (4, "<event-function function=\"%s\"/>",
GST_DEBUG_FUNCPTR_NAME (pad->eventfunc));
if (pad->queryfunc != gst_pad_query_default)
PUT_STRING (4, "<query-function function=\"%s\"/>",
GST_DEBUG_FUNCPTR_NAME (pad->queryfunc));
if (pad->querytypefunc != gst_pad_get_query_types_default) {
PUT_STRING (4, "<query-type-func function=\"%s\">",
GST_DEBUG_FUNCPTR_NAME (pad->querytypefunc));
print_query_types (gst_pad_get_query_types (pad), 5);
PUT_END_TAG (4, "query-type-func");
}
if (pad->iterintlinkfunc != gst_pad_iterate_internal_links_default)
PUT_STRING (4, "<iterintlink-function function=\"%s\"/>",
GST_DEBUG_FUNCPTR_NAME (pad->iterintlinkfunc));
if (pad->bufferallocfunc)
PUT_STRING (4, "<bufferalloc-function function=\"%s\"/>",
GST_DEBUG_FUNCPTR_NAME (pad->bufferallocfunc));
PUT_END_TAG (3, "implementation");
if (pad->caps) {
print_caps (pad->caps, 3);
}
PUT_END_TAG (2, "pad");
}
}
PUT_END_TAG (1, "pads");
print_element_properties (element, 1);
print_element_signals (element, 1);
/* for compound elements */
/* FIXME: gst_bin_get_list does not exist anymore
if (GST_IS_BIN (element)) {
GList *children;
GstElement *child;
PUT_START_TAG (1, "children");
children = (GList *) gst_bin_get_list (GST_BIN (element));
while (children) {
child = GST_ELEMENT (children->data);
children = g_list_next (children);
PUT_ESCAPED (2, "child", GST_ELEMENT_NAME (child));
}
PUT_END_TAG (1, "children");
}
*/
PUT_END_TAG (0, "element");
return 0;
}
static GstElement *
gst_auto_convert_add_element (GstAutoConvert * autoconvert,
GstElementFactory * factory)
{
GstElement *element = NULL;
GstPad *internal_sinkpad = NULL;
GstPad *internal_srcpad = NULL;
GstPad *sinkpad = NULL;
GstPad *srcpad = NULL;
GstPadLinkReturn padlinkret;
GST_DEBUG_OBJECT (autoconvert, "Adding element %s to the autoconvert bin",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
element = gst_element_factory_create (factory, NULL);
if (!element)
return NULL;
if (!gst_bin_add (GST_BIN (autoconvert), element)) {
GST_ERROR_OBJECT (autoconvert, "Could not add element %s to the bin",
GST_OBJECT_NAME (element));
gst_object_unref (element);
return NULL;
}
srcpad = get_pad_by_direction (element, GST_PAD_SRC);
if (!srcpad) {
GST_ERROR_OBJECT (autoconvert, "Could not find source in %s",
GST_OBJECT_NAME (element));
goto error;
}
sinkpad = get_pad_by_direction (element, GST_PAD_SINK);
if (!sinkpad) {
GST_ERROR_OBJECT (autoconvert, "Could not find sink in %s",
GST_OBJECT_NAME (element));
goto error;
}
internal_sinkpad =
gst_pad_new_from_static_template (&sink_internal_template,
"sink_internal");
internal_srcpad =
gst_pad_new_from_static_template (&src_internal_template, "src_internal");
if (!internal_sinkpad || !internal_srcpad) {
GST_ERROR_OBJECT (autoconvert, "Could not create internal pads");
if (internal_srcpad)
gst_object_unref (internal_srcpad);
if (internal_sinkpad)
gst_object_unref (internal_sinkpad);
goto error;
}
g_object_weak_ref (G_OBJECT (element), (GWeakNotify) gst_object_unref,
internal_sinkpad);
g_object_weak_ref (G_OBJECT (element), (GWeakNotify) gst_object_unref,
internal_srcpad);
gst_pad_set_active (internal_sinkpad, TRUE);
gst_pad_set_active (internal_srcpad, TRUE);
g_object_set_qdata (G_OBJECT (internal_srcpad), parent_quark, autoconvert);
g_object_set_qdata (G_OBJECT (internal_sinkpad), parent_quark, autoconvert);
gst_pad_set_chain_function (internal_sinkpad,
GST_DEBUG_FUNCPTR (gst_auto_convert_internal_sink_chain));
gst_pad_set_chain_list_function (internal_sinkpad,
GST_DEBUG_FUNCPTR (gst_auto_convert_internal_sink_chain_list));
gst_pad_set_event_function (internal_sinkpad,
GST_DEBUG_FUNCPTR (gst_auto_convert_internal_sink_event));
gst_pad_set_query_function (internal_sinkpad,
GST_DEBUG_FUNCPTR (gst_auto_convert_internal_sink_query));
gst_pad_set_event_function (internal_srcpad,
GST_DEBUG_FUNCPTR (gst_auto_convert_internal_src_event));
gst_pad_set_query_function (internal_srcpad,
GST_DEBUG_FUNCPTR (gst_auto_convert_internal_src_query));
padlinkret = gst_pad_link_full (internal_srcpad, sinkpad,
GST_PAD_LINK_CHECK_NOTHING);
if (GST_PAD_LINK_FAILED (padlinkret)) {
GST_WARNING_OBJECT (autoconvert, "Could not links pad %s:%s to %s:%s"
" for reason %d",
GST_DEBUG_PAD_NAME (internal_srcpad),
GST_DEBUG_PAD_NAME (sinkpad), padlinkret);
goto error;
}
padlinkret = gst_pad_link_full (srcpad, internal_sinkpad,
GST_PAD_LINK_CHECK_NOTHING);
if (GST_PAD_LINK_FAILED (padlinkret)) {
GST_WARNING_OBJECT (autoconvert, "Could not links pad %s:%s to %s:%s"
" for reason %d",
GST_DEBUG_PAD_NAME (internal_srcpad),
GST_DEBUG_PAD_NAME (sinkpad), padlinkret);
goto error;
}
g_object_set_qdata (G_OBJECT (element),
internal_srcpad_quark, internal_srcpad);
g_object_set_qdata (G_OBJECT (element),
internal_sinkpad_quark, internal_sinkpad);
/* Iffy */
gst_element_sync_state_with_parent (element);
/* Increment the reference count we will return to the caller */
gst_object_ref (element);
/* unref sink and src pad */
gst_object_unref (srcpad);
gst_object_unref (sinkpad);
return element;
error:
gst_element_set_locked_state (element, TRUE);
gst_element_set_state (element, GST_STATE_NULL);
gst_bin_remove (GST_BIN (autoconvert), element);
if (srcpad)
gst_object_unref (srcpad);
if (sinkpad)
gst_object_unref (sinkpad);
return NULL;
}
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
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);
}
}
