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 gpointer owr_payload_detect_codecs(gpointer data)
{
GList *decoder_factories;
GList *encoder_factories;
GstCaps *caps;
OWR_UNUSED(data);
decoder_factories = gst_element_factory_list_get_elements(GST_ELEMENT_FACTORY_TYPE_DECODER |
GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO,
GST_RANK_MARGINAL);
encoder_factories = gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_ENCODER |
GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO,
GST_RANK_MARGINAL);
caps = gst_caps_new_empty_simple("video/x-h264");
h264_decoders = gst_element_factory_list_filter(decoder_factories, caps, GST_PAD_SINK, FALSE);
h264_encoders = gst_element_factory_list_filter(encoder_factories, caps, GST_PAD_SRC, FALSE);
gst_caps_unref (caps);
caps = gst_caps_new_empty_simple("video/x-vp8");
vp8_decoders = gst_element_factory_list_filter(decoder_factories, caps, GST_PAD_SINK, FALSE);
vp8_encoders = gst_element_factory_list_filter(encoder_factories, caps, GST_PAD_SRC, FALSE);
gst_caps_unref (caps);
gst_plugin_feature_list_free(decoder_factories);
gst_plugin_feature_list_free(encoder_factories);
h264_decoders = g_list_sort(h264_decoders, gst_plugin_feature_rank_compare_func);
h264_encoders = g_list_sort(h264_encoders, gst_plugin_feature_rank_compare_func);
vp8_decoders = g_list_sort(vp8_decoders, gst_plugin_feature_rank_compare_func);
vp8_encoders = g_list_sort(vp8_encoders, gst_plugin_feature_rank_compare_func);
return NULL;
}
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;
}
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
gst_auto_convert_dispose (GObject * object)
{
GstAutoConvert *autoconvert = GST_AUTO_CONVERT (object);
gst_pad_set_fixatecaps_function (autoconvert->sinkpad, NULL);
GST_AUTOCONVERT_LOCK (autoconvert);
if (autoconvert->current_subelement) {
gst_object_unref (autoconvert->current_subelement);
autoconvert->current_subelement = NULL;
autoconvert->current_internal_sinkpad = NULL;
autoconvert->current_internal_srcpad = NULL;
}
g_list_foreach (autoconvert->cached_events, (GFunc) gst_mini_object_unref,
NULL);
g_list_free (autoconvert->cached_events);
autoconvert->cached_events = NULL;
if (autoconvert->factories) {
gst_plugin_feature_list_free (autoconvert->factories);
autoconvert->factories = NULL;
}
GST_AUTOCONVERT_UNLOCK (autoconvert);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
/**
* gst_factory_list_get_elements:
* @type: a #GstFactoryListType
*
* Get a sorted list of factories of @type.
*
* Returns: a #GValueArray of #GstElementFactory elements. Use
* g_value_array_free() after usage.
*/
GValueArray *
gst_factory_list_get_elements (GstFactoryListType type)
{
GValueArray *result;
GList *walk, *list;
FilterData data;
result = g_value_array_new (0);
/* prepare type */
data.type = type;
/* get the feature list using the filter */
list =
gst_default_registry_feature_filter ((GstPluginFeatureFilter)
element_filter, FALSE, &data);
/* convert to an array */
for (walk = list; walk; walk = g_list_next (walk)) {
GstElementFactory *factory = GST_ELEMENT_FACTORY (walk->data);
GValue val = { 0, };
g_value_init (&val, G_TYPE_OBJECT);
g_value_set_object (&val, factory);
g_value_array_append (result, &val);
g_value_unset (&val);
}
gst_plugin_feature_list_free (list);
/* sort on rank and name */
g_value_array_sort (result, (GCompareFunc) compare_ranks);
return result;
}
void
gst_auto_video_convert_update_factory_list (GstAutoVideoConvert *
autovideoconvert)
{
/* use a static mutex to protect factories list and factories cookie */
g_static_mutex_lock (&factories_mutex);
/* test if a factories list already exist or not */
if (!factories) {
/* no factories list create it */
factories_cookie =
gst_registry_get_feature_list_cookie (gst_registry_get ());
factories = gst_auto_video_convert_create_factory_list (autovideoconvert);
} else {
/* a factories list exist but is it up to date? */
if (factories_cookie !=
gst_registry_get_feature_list_cookie (gst_registry_get ())) {
/* we need to update the factories list */
/* first free the old one */
gst_plugin_feature_list_free (factories);
/* then create an updated one */
factories_cookie =
gst_registry_get_feature_list_cookie (gst_registry_get ());
factories = gst_auto_video_convert_create_factory_list (autovideoconvert);
}
}
g_static_mutex_unlock (&factories_mutex);
}
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);
}
GstCaps *
gst_type_find_helper_get_range (GstObject * obj,
GstTypeFindHelperGetRangeFunction func, guint64 size,
GstTypeFindProbability * prob)
{
GstTypeFindHelper helper;
GstTypeFind find;
GSList *walk;
GList *l, *type_list;
GstCaps *result = NULL;
g_return_val_if_fail (GST_IS_OBJECT (obj), NULL);
g_return_val_if_fail (func != NULL, NULL);
helper.buffers = NULL;
helper.size = size;
helper.last_offset = 0;
helper.func = func;
helper.best_probability = 0;
helper.caps = NULL;
helper.obj = obj;
find.data = &helper;
find.peek = helper_find_peek;
find.suggest = helper_find_suggest;
if (size == 0 || size == (guint64) - 1) {
find.get_length = NULL;
} else {
find.get_length = helper_find_get_length;
}
/* FIXME: we need to keep this list within the registry */
type_list = gst_type_find_factory_get_list ();
type_list = g_list_sort (type_list, type_find_factory_rank_cmp);
for (l = type_list; l; l = l->next) {
helper.factory = GST_TYPE_FIND_FACTORY (l->data);
gst_type_find_factory_call_function (helper.factory, &find);
if (helper.best_probability >= GST_TYPE_FIND_MAXIMUM)
break;
}
gst_plugin_feature_list_free (type_list);
for (walk = helper.buffers; walk; walk = walk->next)
gst_buffer_unref (GST_BUFFER_CAST (walk->data));
g_slist_free (helper.buffers);
if (helper.best_probability > 0)
result = helper.caps;
if (prob)
*prob = helper.best_probability;
GST_LOG_OBJECT (obj, "Returning %" GST_PTR_FORMAT " (probability = %u)",
result, (guint) helper.best_probability);
return result;
}
int
main (int argc, char *argv[])
{
GstElementFactory *factory;
GOptionEntry options[] = {
GST_TOOLS_GOPTION_VERSION,
{NULL}
};
GOptionContext *ctx;
GError *err = NULL;
setlocale (LC_ALL, "");
#if !GLIB_CHECK_VERSION (2, 31, 0)
g_thread_init (NULL);
#endif
gst_tools_set_prgname ("gst-xmlinspect");
ctx = g_option_context_new ("[ELEMENT-NAME]");
g_option_context_add_main_entries (ctx, options, GETTEXT_PACKAGE);
g_option_context_add_group (ctx, gst_init_get_option_group ());
if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
g_print ("Error initializing: %s\n", err->message);
exit (1);
}
g_option_context_free (ctx);
gst_tools_print_version ("gst-xmlinspect");
/* if no arguments, print out all elements */
if (argc == 1) {
GList *features, *f;
features = gst_registry_get_feature_list (gst_registry_get_default (),
GST_TYPE_ELEMENT_FACTORY);
PUT_STRING (0, "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>");
for (f = features; f != NULL; f = f->next)
print_element_info (GST_ELEMENT_FACTORY (f->data));
gst_plugin_feature_list_free (features);
return 0;
}
/* else we try to get a factory */
factory = gst_element_factory_find (argv[1]);
/* if there's a factory, print out the info */
if (factory) {
PUT_STRING (0, "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>");
return print_element_info (factory);
}
/* otherwise, error out */
g_printerr ("no such element '%s'\n", argv[1]);
return -1;
}
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);
}
EXPORT_C
#endif
GstCaps *
gst_type_find_helper_for_buffer (GstObject * obj, GstBuffer * buf,
GstTypeFindProbability * prob)
{
GstTypeFindBufHelper helper;
GstTypeFind find;
GList *l, *type_list;
GstCaps *result = NULL;
g_return_val_if_fail (buf != NULL, NULL);
g_return_val_if_fail (GST_IS_BUFFER (buf), NULL);
g_return_val_if_fail (GST_BUFFER_OFFSET (buf) == 0 ||
GST_BUFFER_OFFSET (buf) == GST_BUFFER_OFFSET_NONE, NULL);
helper.data = GST_BUFFER_DATA (buf);
helper.size = GST_BUFFER_SIZE (buf);
helper.best_probability = 0;
helper.caps = NULL;
helper.obj = obj;
if (helper.data == NULL || helper.size == 0)
return NULL;
find.data = &helper;
find.peek = buf_helper_find_peek;
find.suggest = buf_helper_find_suggest;
find.get_length = NULL;
/* FIXME: we need to keep this list within the registry */
type_list = gst_type_find_factory_get_list ();
type_list = g_list_sort (type_list, type_find_factory_rank_cmp);
for (l = type_list; l; l = l->next) {
helper.factory = GST_TYPE_FIND_FACTORY (l->data);
gst_type_find_factory_call_function (helper.factory, &find);
if (helper.best_probability >= GST_TYPE_FIND_MAXIMUM)
break;
}
gst_plugin_feature_list_free (type_list);
if (helper.best_probability > 0)
result = helper.caps;
if (prob)
*prob = helper.best_probability;
GST_LOG_OBJECT (obj, "Returning %" GST_PTR_FORMAT " (probability = %u)",
result, (guint) helper.best_probability);
return result;
}
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);
}
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;
}
}
int Uridecodebin::autoplug_continue_cb(GstElement* /*bin */,
GstPad* pad,
GstCaps* caps,
gpointer /*user_data*/) {
GList* list = gst_registry_feature_filter(
gst_registry_get(), (GstPluginFeatureFilter)sink_factory_filter, FALSE, caps);
int length = g_list_length(list);
gst_plugin_feature_list_free(list);
if (length == 0 || pad_is_image(get_pad_name(pad))) return 0;
return 1;
}
EXPORT_C
#endif
GstCaps *
gst_type_find_helper_for_extension (GstObject * obj, const gchar * extension)
{
GList *l, *type_list;
GstCaps *result = NULL;
g_return_val_if_fail (extension != NULL, NULL);
GST_LOG_OBJECT (obj, "finding caps for extension %s", extension);
type_list = gst_type_find_factory_get_list ();
type_list = g_list_sort (type_list, type_find_factory_rank_cmp);
for (l = type_list; l; l = g_list_next (l)) {
GstTypeFindFactory *factory;
gchar **ext;
gint i;
factory = GST_TYPE_FIND_FACTORY (l->data);
/* get the extension that this typefind factory can handle */
ext = gst_type_find_factory_get_extensions (factory);
if (ext == NULL)
continue;
/* we only want to check those factories without a function */
if (factory->function != NULL)
continue;
/* there are extension, see if one of them matches the requested
* extension */
for (i = 0; ext[i]; i++) {
if (strcmp (ext[i], extension) == 0) {
/* we found a matching extension, take the caps */
if ((result = gst_type_find_factory_get_caps (factory))) {
gst_caps_ref (result);
goto done;
}
}
}
}
done:
gst_plugin_feature_list_free (type_list);
GST_LOG_OBJECT (obj, "Returning %" GST_PTR_FORMAT, result);
return result;
}
gint list_gaudieffects_features()
{
GList *list, *walk;
g_print("Available gaudieffects features :\n");
list = gst_registry_get_feature_list_by_plugin(GET_PLUGIN_REGISTRY, "gaudieffects");
for (walk = list; walk != NULL; walk = g_list_next(walk))
g_print("feature: <%s>\n",
gst_plugin_feature_get_name((GstPluginFeature *)walk->data));
gst_plugin_feature_list_free(list);
return 0;
}
static GstElementFactory *
get_encoder_factory (GstCaps * caps)
{
GstElementFactory *fact = NULL;
GList *encoders, *tmp;
tmp =
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_ENCODER,
GST_RANK_MARGINAL);
encoders = gst_element_factory_list_filter (tmp, caps, GST_PAD_SRC, FALSE);
gst_plugin_feature_list_free (tmp);
for (tmp = encoders; tmp; tmp = tmp->next) {
/* We just pick the first one */
fact = (GstElementFactory *) tmp->data;
gst_object_ref (fact);
break;
}
gst_plugin_feature_list_free (encoders);
return fact;
}
static GstElementFactory *
get_audio_encoder_factory (GstEncodingProfile *profile)
{
GstEncodingProfile *p = get_audio_encoding_profile (profile);
GstElementFactory *f;
GList *l;
GList *fl;
if (p == NULL)
return NULL;
l = gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_ENCODER, GST_RANK_MARGINAL);
fl = gst_element_factory_list_filter (l, gst_encoding_profile_get_format (p), GST_PAD_SRC, FALSE);
if (fl != NULL) {
f = gst_object_ref (fl->data);
} else {
g_warning ("no encoder factory for profile %s", gst_encoding_profile_get_name (p));
f = NULL;
}
gst_plugin_feature_list_free (l);
gst_plugin_feature_list_free (fl);
return f;
}
/**
* gst_type_find_helper_for_data_with_extension:
* @obj: (allow-none): object doing the typefinding, or %NULL (used for logging)
* @data: (transfer none) (array length=size): * a pointer with data to typefind
* @size: the size of @data
* @extension: (allow-none): extension of the media, or %NULL
* @prob: (out) (allow-none): location to store the probability of the found
* caps, or %NULL
*
* Tries to find what type of data is contained in the given @data, the
* assumption being that the data represents the beginning of the stream or
* file.
*
* All available typefinders will be called on the data in order of rank. If
* a typefinding function returns a probability of %GST_TYPE_FIND_MAXIMUM,
* typefinding is stopped immediately and the found caps will be returned
* right away. Otherwise, all available typefind functions will the tried,
* and the caps with the highest probability will be returned, or %NULL if
* the content of @data could not be identified.
*
* When @extension is not %NULL, this function will first try the typefind
* functions for the given extension, which might speed up the typefinding
* in many cases.
*
* Free-function: gst_caps_unref
*
* Returns: (transfer full) (nullable): the #GstCaps corresponding to the data,
* or %NULL if no type could be found. The caller should free the caps
* returned with gst_caps_unref().
*
* Since: 1.16
*
*/
GstCaps *
gst_type_find_helper_for_data_with_extension (GstObject * obj,
const guint8 * data, gsize size, const gchar * extension,
GstTypeFindProbability * prob)
{
GstTypeFindBufHelper helper;
GstTypeFind find;
GList *l, *type_list;
GstCaps *result = NULL;
g_return_val_if_fail (data != NULL, NULL);
helper.data = data;
helper.size = size;
helper.best_probability = GST_TYPE_FIND_NONE;
helper.caps = NULL;
helper.obj = obj;
if (helper.data == NULL || helper.size == 0)
return NULL;
find.data = &helper;
find.peek = buf_helper_find_peek;
find.suggest = buf_helper_find_suggest;
find.get_length = NULL;
type_list = gst_type_find_factory_get_list ();
type_list = prioritize_extension (obj, type_list, extension);
for (l = type_list; l; l = l->next) {
helper.factory = GST_TYPE_FIND_FACTORY (l->data);
gst_type_find_factory_call_function (helper.factory, &find);
if (helper.best_probability >= GST_TYPE_FIND_MAXIMUM)
break;
}
gst_plugin_feature_list_free (type_list);
if (helper.best_probability > 0)
result = helper.caps;
if (prob)
*prob = helper.best_probability;
GST_LOG_OBJECT (obj, "Returning %" GST_PTR_FORMAT " (probability = %u)",
result, (guint) helper.best_probability);
return result;
}
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);
}
/**
* gst_plugin_find_feature_by_name:
* @plugin: plugin to get the feature from
* @name: The name of the feature to find
*
* Find a feature of the given name in the given plugin.
*
* Returns: a GstPluginFeature or NULL if the feature was not found.
*/
GstPluginFeature *
gst_plugin_find_feature_by_name (GstPlugin * plugin, const gchar * name)
{
GList *walk;
GstPluginFeature *result = NULL;
g_return_val_if_fail (name != NULL, NULL);
walk = gst_filter_run (plugin->features,
(GstFilterFunc) gst_plugin_feature_name_filter, TRUE, (void *) name);
if (walk) {
result = GST_PLUGIN_FEATURE (walk->data);
gst_object_ref (result);
gst_plugin_feature_list_free (walk);
}
return result;
}
/**
* gst_protection_select_system:
* @system_identifiers: (transfer none): A null terminated array of strings
* that contains the UUID values of each protection system that is to be
* checked.
*
* Iterates the supplied list of UUIDs and checks the GstRegistry for
* an element that supports one of the supplied UUIDs. If more than one
* element matches, the system ID of the highest ranked element is selected.
*
* Returns: (transfer none): One of the strings from @system_identifiers that
* indicates the highest ranked element that implements the protection system
* indicated by that system ID, or %NULL if no element has been found.
*
* Since: 1.6
*/
const gchar *
gst_protection_select_system (const gchar ** system_identifiers)
{
GList *decryptors, *walk;
const gchar *retval = NULL;
decryptors =
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_DECRYPTOR,
GST_RANK_MARGINAL);
for (walk = decryptors; !retval && walk; walk = g_list_next (walk)) {
GstElementFactory *fact = (GstElementFactory *) walk->data;
retval = gst_protection_factory_check (fact, system_identifiers);
}
gst_plugin_feature_list_free (decryptors);
return retval;
}
EXPORT_C
#endif
GList *
gst_audio_default_registry_mixer_filter (GstAudioMixerFilterFunc filter_func,
gboolean first, gpointer data)
{
GList *mixer_list = NULL;
GList *feature_list;
GList *walk;
/* go through all elements of a certain class and check whether
* they implement a mixer. If so, add it to the list. */
feature_list = gst_registry_get_feature_list (gst_registry_get_default (),
GST_TYPE_ELEMENT_FACTORY);
feature_list = g_list_sort (feature_list, element_factory_rank_compare_func);
for (walk = feature_list; walk != NULL; walk = walk->next) {
GstElementFactory *factory;
const gchar *klass;
factory = GST_ELEMENT_FACTORY (walk->data);
/* check category */
klass = gst_element_factory_get_klass (factory);
if (strcmp (klass, "Generic/Audio") == 0) {
gst_audio_mixer_filter_probe_feature (filter_func, factory,
&mixer_list, first, data);
}
if (first && mixer_list != NULL) {
GST_DEBUG ("Stopping after first found mixer, as requested");
break;
}
}
gst_plugin_feature_list_free (feature_list);
return g_list_reverse (mixer_list);
}
static void
gst_auto_convert_dispose (GObject * object)
{
GstAutoConvert *autoconvert = GST_AUTO_CONVERT (object);
g_clear_object (&autoconvert->current_subelement);
g_clear_object (&autoconvert->current_internal_sinkpad);
g_clear_object (&autoconvert->current_internal_srcpad);
for (;;) {
GList *factories = g_atomic_pointer_get (&autoconvert->factories);
if (g_atomic_pointer_compare_and_exchange (&autoconvert->factories,
factories, NULL)) {
gst_plugin_feature_list_free (factories);
break;
}
}
G_OBJECT_CLASS (gst_auto_convert_parent_class)->dispose (object);
}
static void
print_plugin (const gchar * marker, GstRegistry * registry, GstPlugin * plugin)
{
const gchar *name;
GList *features, *f;
name = gst_plugin_get_name (plugin);
GST_DEBUG ("%s: plugin %p %d %s file: %s", marker, plugin,
GST_OBJECT_REFCOUNT (plugin), name,
GST_STR_NULL (gst_plugin_get_filename (plugin)));
features = gst_registry_get_feature_list_by_plugin (registry, name);
for (f = features; f != NULL; f = f->next) {
GstPluginFeature *feature;
feature = GST_PLUGIN_FEATURE (f->data);
GST_LOG ("%s: feature: %p %s", marker, feature,
GST_OBJECT_NAME (feature));
}
gst_plugin_feature_list_free (features);
}
/**
* gst_plugin_find_feature:
* @plugin: plugin to get the feature from
* @name: The name of the feature to find
* @type: The type of the feature to find
*
* Find a feature of the given name and type in the given plugin.
*
* Returns: a GstPluginFeature or NULL if the feature was not found.
*/
GstPluginFeature *
gst_plugin_find_feature (GstPlugin * plugin, const gchar * name, GType type)
{
GList *walk;
GstPluginFeature *result = NULL;
GstTypeNameData data;
g_return_val_if_fail (name != NULL, NULL);
data.type = type;
data.name = name;
walk = gst_filter_run (plugin->features,
(GstFilterFunc) gst_plugin_feature_type_name_filter, TRUE, &data);
if (walk) {
result = GST_PLUGIN_FEATURE (walk->data);
gst_object_ref (result);
gst_plugin_feature_list_free (walk);
}
return result;
}
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);
}
/**
* gst_type_find_helper_get_range_ext:
* @obj: A #GstObject that will be passed as first argument to @func
* @func: (scope call): A generic #GstTypeFindHelperGetRangeFunction that will
* be used to access data at random offsets when doing the typefinding
* @size: The length in bytes
* @extension: extension of the media
* @prob: (out) (allow-none): location to store the probability of the found
* caps, or #NULL
*
* Utility function to do pull-based typefinding. Unlike gst_type_find_helper()
* however, this function will use the specified function @func to obtain the
* data needed by the typefind functions, rather than operating on a given
* source pad. This is useful mostly for elements like tag demuxers which
* strip off data at the beginning and/or end of a file and want to typefind
* the stripped data stream before adding their own source pad (the specified
* callback can then call the upstream peer pad with offsets adjusted for the
* tag size, for example).
*
* When @extension is not NULL, this function will first try the typefind
* functions for the given extension, which might speed up the typefinding
* in many cases.
*
* Free-function: gst_caps_unref
*
* Returns: (transfer full): the #GstCaps corresponding to the data stream.
* Returns #NULL if no #GstCaps matches the data stream.
*
* Since: 0.10.26
*/
GstCaps *
gst_type_find_helper_get_range_ext (GstObject * obj,
GstTypeFindHelperGetRangeFunction func, guint64 size,
const gchar * extension, GstTypeFindProbability * prob)
{
GstTypeFindHelper helper;
GstTypeFind find;
GSList *walk;
GList *l, *type_list;
GstCaps *result = NULL;
gint pos = 0;
g_return_val_if_fail (GST_IS_OBJECT (obj), NULL);
g_return_val_if_fail (func != NULL, NULL);
helper.buffers = NULL;
helper.size = size;
helper.last_offset = 0;
helper.func = func;
helper.best_probability = GST_TYPE_FIND_NONE;
helper.caps = NULL;
helper.obj = obj;
find.data = &helper;
find.peek = helper_find_peek;
find.suggest = helper_find_suggest;
if (size == 0 || size == (guint64) - 1) {
find.get_length = NULL;
} else {
find.get_length = helper_find_get_length;
}
type_list = gst_type_find_factory_get_list ();
/* move the typefinders for the extension first in the list. The idea is that
* when one of them returns MAX we don't need to search further as there is a
* very high chance we got the right type. */
if (extension) {
GList *next;
GST_LOG_OBJECT (obj, "sorting typefind for extension %s to head",
extension);
for (l = type_list; l; l = next) {
GstTypeFindFactory *factory;
gint i;
gchar **ext;
next = l->next;
factory = GST_TYPE_FIND_FACTORY (l->data);
ext = gst_type_find_factory_get_extensions (factory);
if (ext == NULL)
continue;
GST_LOG_OBJECT (obj, "testing factory %s for extension %s",
GST_PLUGIN_FEATURE_NAME (factory), extension);
for (i = 0; ext[i]; i++) {
if (strcmp (ext[i], extension) == 0) {
/* found extension, move in front */
GST_LOG_OBJECT (obj, "moving typefind for extension %s to head",
extension);
/* remove entry from list */
type_list = g_list_delete_link (type_list, l);
/* insert at the position */
type_list = g_list_insert (type_list, factory, pos);
/* next element will be inserted after this one */
pos++;
break;
}
}
}
}
for (l = type_list; l; l = l->next) {
helper.factory = GST_TYPE_FIND_FACTORY (l->data);
gst_type_find_factory_call_function (helper.factory, &find);
if (helper.best_probability >= GST_TYPE_FIND_MAXIMUM)
break;
}
gst_plugin_feature_list_free (type_list);
for (walk = helper.buffers; walk; walk = walk->next)
gst_buffer_unref (GST_BUFFER_CAST (walk->data));
g_slist_free (helper.buffers);
if (helper.best_probability > 0)
result = helper.caps;
if (prob)
*prob = helper.best_probability;
GST_LOG_OBJECT (obj, "Returning %" GST_PTR_FORMAT " (probability = %u)",
result, (guint) helper.best_probability);
return result;
}
