#include <dirent.h>
#include <unistd.h>
-#undef RTLD_GLOBAL
-
#include "gst_private.h"
#include "gstplugin.h"
#include "gstversion.h"
+#include "gstregistrypool.h"
+#include "gstlog.h"
#include "config.h"
+#include "gstfilter.h"
+static GModule *main_module = NULL;
+static GList *_gst_plugin_static = NULL;
-/* list of loaded modules and its sequence number */
-GList *_gst_modules;
-gint _gst_modules_seqno;
-/* global list of plugins and its sequence number */
-GList *_gst_plugins;
-gint _gst_plugins_seqno;
-gint _gst_plugin_elementfactories = 0;
-gint _gst_plugin_types = 0;
-/* list of paths to check for plugins */
-GList *_gst_plugin_paths;
-
-GList *_gst_libraries;
-gint _gst_libraries_seqno;
-
-/* whether or not to spew library load issues */
-gboolean _gst_plugin_spew = FALSE;
-
-/* whether or not to warn if registry needs rebuild (gstreamer-register sets
- * this to false.) */
-gboolean _gst_warn_old_registry = TRUE;
-
-static gboolean plugin_times_older_than(time_t regtime);
-static time_t get_time(const char * path);
-
-void
-_gst_plugin_initialize (void)
+static GstPlugin* gst_plugin_register_func (GstPluginDesc *desc, GstPlugin *plugin,
+ GModule *module);
+GQuark
+gst_plugin_error_quark (void)
{
- xmlDocPtr doc;
- _gst_modules = NULL;
- _gst_modules_seqno = 0;
- _gst_plugins = NULL;
- _gst_plugins_seqno = 0;
- _gst_plugin_paths = NULL;
- _gst_libraries = NULL;
- _gst_libraries_seqno = 0;
-
- /* add the main (installed) library path */
- _gst_plugin_paths = g_list_prepend (_gst_plugin_paths, PLUGINS_DIR);
-
- /* if this is set, we add build-directory paths to the list */
-#ifdef PLUGINS_USE_SRCDIR
- /* the catch-all plugins directory */
- _gst_plugin_paths = g_list_prepend (_gst_plugin_paths,
- PLUGINS_SRCDIR "/plugins");
- /* the libreary directory */
- _gst_plugin_paths = g_list_prepend (_gst_plugin_paths,
- PLUGINS_SRCDIR "/libs");
- /* location libgstelements.so */
- _gst_plugin_paths = g_list_prepend (_gst_plugin_paths,
- PLUGINS_SRCDIR "/gst/elements");
- _gst_plugin_paths = g_list_prepend (_gst_plugin_paths,
- PLUGINS_SRCDIR "/gst/types");
- _gst_plugin_paths = g_list_prepend (_gst_plugin_paths,
- PLUGINS_SRCDIR "/gst/autoplug");
-#endif /* PLUGINS_USE_SRCDIR */
-
- doc = xmlParseFile (GST_CONFIG_DIR"/reg.xml");
-
- if (!doc ||
- !doc->xmlRootNode ||
- doc->xmlRootNode->name == 0 ||
- strcmp (doc->xmlRootNode->name, "GST-PluginRegistry") ||
- !plugin_times_older_than(get_time(GST_CONFIG_DIR"/reg.xml"))) {
- if (_gst_warn_old_registry)
- g_warning ("gstplugin: registry needs rebuild: run gstreamer-register\n");
- gst_plugin_load_all ();
- return;
- }
- gst_plugin_load_thyself (doc->xmlRootNode);
-
- xmlFreeDoc (doc);
+ static GQuark quark = 0;
+ if (!quark)
+ quark = g_quark_from_static_string ("gst_plugin_error");
+ return quark;
}
-/**
- * gst_plugin_add_path:
- * @path: the directory to add to the search path
- *
- * Add a directory to the path searched for plugins.
- */
+/* this function can be called in the GCC constructor extension, before
+ * the _gst_plugin_initialize() was called. In that case, we store the
+ * plugin description in a list to initialize it when we open the main
+ * module later on.
+ * When the main module is known, we can register the plugin right away.
+ * */
void
-gst_plugin_add_path (const gchar *path)
-{
- _gst_plugin_paths = g_list_prepend (_gst_plugin_paths,g_strdup(path));
-}
-
-static time_t
-get_time(const char * path)
+_gst_plugin_register_static (GstPluginDesc *desc)
{
- struct stat statbuf;
- if (stat(path, &statbuf)) return 0;
- if (statbuf.st_mtime > statbuf.st_ctime) return statbuf.st_mtime;
- return statbuf.st_ctime;
-}
-
-static gboolean
-plugin_times_older_than_recurse(gchar *path, time_t regtime)
-{
- DIR *dir;
- struct dirent *dirent;
- gchar *pluginname;
-
- time_t pathtime = get_time(path);
-
- if (pathtime > regtime) {
- GST_INFO (GST_CAT_PLUGIN_LOADING,
- "time for %s was %ld; more recent than registry time of %ld\n",
- path, (long)pathtime, (long)regtime);
- return FALSE;
+ if (main_module == NULL) {
+ _gst_plugin_static = g_list_prepend (_gst_plugin_static, desc);
}
+ else {
+ GstPlugin *plugin;
- dir = opendir(path);
- if (dir) {
- while ((dirent = readdir(dir))) {
- /* don't want to recurse in place or backwards */
- if (strcmp(dirent->d_name,".") && strcmp(dirent->d_name,"..")) {
- pluginname = g_strjoin("/",path,dirent->d_name,NULL);
- if (!plugin_times_older_than_recurse(pluginname , regtime)) {
- g_free (pluginname);
- closedir(dir);
- return FALSE;
- }
- g_free (pluginname);
- }
- }
- closedir(dir);
- }
- return TRUE;
-}
+ plugin = g_new0 (GstPlugin, 1);
+ plugin->filename = NULL;
+ plugin->module = NULL;
+ plugin = gst_plugin_register_func (desc, plugin, main_module);
-static gboolean
-plugin_times_older_than(time_t regtime)
-{
- // return true iff regtime is more recent than the times of all the files
- // in the plugin dirs.
- GList *path;
- path = _gst_plugin_paths;
- while (path != NULL) {
- GST_DEBUG (GST_CAT_PLUGIN_LOADING,
- "comparing plugin times from %s with %ld\n",
- (gchar *)path->data, (long) regtime);
- if(!plugin_times_older_than_recurse(path->data, regtime))
- return FALSE;
- path = g_list_next(path);
- }
- return TRUE;
-}
-
-static gboolean
-gst_plugin_load_recurse (gchar *directory, gchar *name)
-{
- DIR *dir;
- struct dirent *dirent;
- gboolean loaded = FALSE;
- gchar *dirname;
-
- //g_print("recursive load of '%s' in '%s'\n", name, directory);
- dir = opendir(directory);
- if (dir) {
- while ((dirent = readdir(dir))) {
- /* don't want to recurse in place or backwards */
- if (strcmp(dirent->d_name,".") && strcmp(dirent->d_name,"..")) {
- dirname = g_strjoin("/",directory,dirent->d_name,NULL);
- loaded = gst_plugin_load_recurse(dirname,name);
- g_free(dirname);
- if (loaded && name) {
- closedir(dir);
- return TRUE;
- }
- }
- }
- closedir(dir);
- } else {
- if (strstr(directory,".so")) {
- gchar *temp;
- if (name) {
- if ((temp = strstr(directory,name)) &&
- (!strcmp(temp,name))) {
- loaded = gst_plugin_load_absolute(directory);
- }
- } else if ((temp = strstr(directory,".so")) &&
- (!strcmp(temp,".so"))) {
- loaded = gst_plugin_load_absolute(directory);
- }
+ if (plugin) {
+ plugin->module = main_module;
+ gst_registry_pool_add_plugin (plugin);
}
}
- return loaded;
}
-/**
- * gst_plugin_load_all:
- *
- * Load all plugins in the path.
- */
void
-gst_plugin_load_all(void)
+_gst_plugin_initialize (void)
{
- GList *path;
+ main_module = g_module_open (NULL, G_MODULE_BIND_LAZY);
- path = _gst_plugin_paths;
- while (path != NULL) {
- GST_INFO (GST_CAT_PLUGIN_LOADING,"loading plugins from %s",(gchar *)path->data);
- gst_plugin_load_recurse(path->data,NULL);
- path = g_list_next(path);
- }
- GST_INFO (GST_CAT_PLUGIN_LOADING,"loaded %d plugins with %d elements and %d types",
- _gst_plugins_seqno,_gst_plugin_elementfactories,_gst_plugin_types);
+ /* now register all static plugins */
+ g_list_foreach (_gst_plugin_static, (GFunc) _gst_plugin_register_static, NULL);
}
-/**
- * gst_library_load:
- * @name: name of library to load
- *
- * Load the named library. Name should be given as
- * "liblibrary.so".
- *
- * Returns: whether the library was loaded or not
- */
-gboolean
-gst_library_load (const gchar *name)
+static gboolean
+gst_plugin_check_version (gint major, gint minor)
{
- gboolean res;
- GList *libraries = _gst_libraries;
-
- while (libraries) {
- if (!strcmp((gchar *)libraries->data, name)) return TRUE;
-
- libraries = g_list_next(libraries);
- }
-
- // for now this is the same
- res = gst_plugin_load(name);
-
- if (res) {
- _gst_libraries = g_list_prepend(_gst_libraries, g_strdup (name));
- }
+ /* return NULL if the major and minor version numbers are not compatible */
+ /* with ours. */
+ if (major != GST_VERSION_MAJOR || minor != GST_VERSION_MINOR)
+ return FALSE;
- return res;
+ return TRUE;
}
-static void
-gst_plugin_remove (GstPlugin *plugin)
+static GstPlugin*
+gst_plugin_register_func (GstPluginDesc *desc, GstPlugin *plugin, GModule *module)
{
- GList *factories;
-
- factories = plugin->elements;
- while (factories) {
- gst_elementfactory_destroy ((GstElementFactory*)(factories->data));
- factories = g_list_next(factories);
+ if (!gst_plugin_check_version (desc->major_version, desc->minor_version)) {
+ GST_INFO (GST_CAT_PLUGIN_LOADING,"plugin \"%s\" has incompatible version, not loading",
+ plugin->filename);
+ return NULL;
}
- _gst_plugins = g_list_remove(_gst_plugins, plugin);
+ g_free (plugin->name);
+ plugin->name = g_strdup(desc->name);
+
+ if (!((desc->plugin_init) (module, plugin))) {
+ GST_INFO (GST_CAT_PLUGIN_LOADING,"plugin \"%s\" failed to initialise",
+ plugin->filename);
+ return NULL;
+ }
+ GST_INFO (GST_CAT_PLUGIN_LOADING,"plugin \"%s\" initialised", GST_STR_NULL (plugin->filename));
- // don't free the stuct because someone can have a handle to it
+ return plugin;
}
/**
- * gst_plugin_load:
- * @name: name of plugin to load
+ * gst_plugin_new:
+ * @filename: The filename of the plugin
*
- * Load the named plugin. Name should be given as
- * "libplugin.so".
+ * Creates a plugin from the given filename
*
- * Returns: whether the plugin was loaded or not
+ * Returns: A new GstPlugin object
*/
-gboolean
-gst_plugin_load (const gchar *name)
+GstPlugin*
+gst_plugin_new (const gchar *filename)
{
- GList *path;
- gchar *libspath;
- GstPlugin *plugin;
- gchar *pluginname;
-
- //g_print("attempting to load plugin '%s'\n",name);
-
- plugin = gst_plugin_find (name);
+ GstPlugin *plugin = g_new0 (GstPlugin, 1);
+ plugin->filename = g_strdup (filename);
- if (plugin && plugin->loaded) return TRUE;
-
- path = _gst_plugin_paths;
- while (path != NULL) {
- pluginname = g_module_build_path(path->data,name);
- if (gst_plugin_load_absolute(pluginname)) {
- g_free(pluginname);
- return TRUE;
- }
- g_free(pluginname);
- libspath = g_strconcat(path->data,"/.libs",NULL);
- //g_print("trying to load '%s'\n",g_module_build_path(libspath,name));
- pluginname = g_module_build_path(libspath,name);
- g_free(libspath);
- if (gst_plugin_load_absolute(pluginname)) {
- g_free(pluginname);
- return TRUE;
- }
- g_free(pluginname);
- //g_print("trying to load '%s' from '%s'\n",name,path->data);
- pluginname = g_module_build_path("",name);
- if (gst_plugin_load_recurse(path->data,pluginname)) {
- g_free(pluginname);
- return TRUE;
- }
- g_free(pluginname);
- path = g_list_next(path);
- }
- return FALSE;
+ return plugin;
}
/**
- * gst_plugin_load_absolute:
- * @name: name of plugin to load
+ * gst_plugin_load_plugin:
+ * @plugin: The plugin to load
+ * @error: Pointer to a NULL-valued GError.
*
- * Returns: whether or not the plugin loaded
+ * Load the given plugin.
+ *
+ * Returns: whether or not the plugin loaded. Sets @error as appropriate.
*/
gboolean
-gst_plugin_load_absolute (const gchar *name)
+gst_plugin_load_plugin (GstPlugin *plugin, GError **error)
{
GModule *module;
GstPluginDesc *desc;
- GstPlugin *plugin;
struct stat file_status;
+ gchar *filename;
- GST_INFO (GST_CAT_PLUGIN_LOADING,"plugin \"%s\" loading", name);
+ g_return_val_if_fail (plugin != NULL, FALSE);
- if (g_module_supported() == FALSE) {
- g_warning("gstplugin: wow, you built this on a platform without dynamic loading???\n");
+ if (plugin->module)
+ return TRUE;
+
+ filename = plugin->filename;
+
+ GST_DEBUG (GST_CAT_PLUGIN_LOADING, "attempt to load plugin \"%s\"", filename);
+
+ if (g_module_supported () == FALSE) {
+ g_set_error (error,
+ GST_PLUGIN_ERROR,
+ GST_PLUGIN_ERROR_MODULE,
+ "Dynamic loading not supported");
return FALSE;
}
- if (stat(name,&file_status)) {
- //g_print("problem opening file %s\n",name);
+ if (stat (filename, &file_status)) {
+ g_set_error (error,
+ GST_PLUGIN_ERROR,
+ GST_PLUGIN_ERROR_MODULE,
+ "Problem opening file %s (plugin %s)\n",
+ filename, plugin->name);
return FALSE;
}
- module = g_module_open(name,G_MODULE_BIND_LAZY);
+ module = g_module_open (filename, G_MODULE_BIND_LAZY);
+
if (module != NULL) {
- if (g_module_symbol(module,"plugin_desc",(gpointer *)&desc)) {
- GST_INFO (GST_CAT_PLUGIN_LOADING,"loading plugin \"%s\"...", name);
- plugin = gst_plugin_new(desc->name, desc->major_version, desc->minor_version);
- if (plugin != NULL) {
- plugin->filename = g_strdup(name);
- if (!((desc->plugin_init)(module, plugin))) {
- GST_INFO (GST_CAT_PLUGIN_LOADING,"plugin \"%s\" failed to initialise",
- plugin->name);
- g_free(plugin);
- plugin = NULL;
- }
- }
+ gpointer ptr;
+
+ if (g_module_symbol (module, "plugin_desc", &ptr)) {
+ desc = (GstPluginDesc *)ptr;
+
+ GST_DEBUG (GST_CAT_PLUGIN_LOADING, "plugin \"%s\" loaded, called entry function...", filename);
+
+ plugin->filename = g_strdup (filename);
+ plugin = gst_plugin_register_func (desc, plugin, module);
if (plugin != NULL) {
- GST_INFO (GST_CAT_PLUGIN_LOADING,"plugin \"%s\" loaded: %d elements, %d types",
- plugin->name,plugin->numelements,plugin->numtypes);
- plugin->loaded = TRUE;
- _gst_modules = g_list_prepend(_gst_modules,module);
- _gst_modules_seqno++;
- _gst_plugins = g_list_prepend(_gst_plugins,plugin);
- _gst_plugins_seqno++;
- _gst_plugin_elementfactories += plugin->numelements;
- _gst_plugin_types += plugin->numtypes;
+ GST_INFO (GST_CAT_PLUGIN_LOADING, "plugin \"%s\" loaded", plugin->filename);
+ plugin->module = module;
return TRUE;
}
+ else {
+ /* plugin == NULL */
+ g_set_error (error,
+ GST_PLUGIN_ERROR,
+ GST_PLUGIN_ERROR_MODULE,
+ "gst_plugin_register_func failed for plugin \"%s\"",
+ filename);
+ return FALSE;
+ }
}
- return TRUE;
- } else if (_gst_plugin_spew) {
- // FIXME this should be some standard gst mechanism!!!
- g_printerr ("error loading plugin %s, reason: %s\n", name, g_module_error());
- }
+ else {
+ g_set_error (error,
+ GST_PLUGIN_ERROR,
+ GST_PLUGIN_ERROR_MODULE,
+ "Could not find plugin_desc in \"%s\"",
+ filename);
+ }
+ return FALSE;
+ }
else {
- GST_INFO (GST_CAT_PLUGIN_LOADING, "error loading plugin %s, reason: %s\n", name, g_module_error());
+ g_set_error (error,
+ GST_PLUGIN_ERROR,
+ GST_PLUGIN_ERROR_MODULE,
+ "Error loading plugin %s, reason: %s\n",
+ filename, g_module_error());
+ return FALSE;
}
-
- return FALSE;
}
+
/**
- * gst_plugin_new:
- * @name: name of new plugin
- * @major: major version number of core that plugin is compatible with
- * @minor: minor version number of core that plugin is compatible with
+ * gst_plugin_unload_plugin:
+ * @plugin: The plugin to unload
*
- * Create a new plugin with given name.
+ * Unload the given plugin.
*
- * Returns: new plugin, or NULL if plugin couldn't be created, due to
- * incompatible version number, or name already being allocated)
+ * Returns: whether or not the plugin unloaded
*/
-GstPlugin*
-gst_plugin_new (const gchar *name, gint major, gint minor)
+gboolean
+gst_plugin_unload_plugin (GstPlugin *plugin)
{
- GstPlugin *plugin;
-
- // return NULL if the major and minor version numbers are not compatible
- // with ours.
- if (major != GST_VERSION_MAJOR || minor != GST_VERSION_MINOR) return NULL;
-
- // return NULL if the plugin is allready loaded
- plugin = gst_plugin_find (name);
- if (plugin) return NULL;
-
- plugin = (GstPlugin *)g_malloc(sizeof(GstPlugin));
+ g_return_val_if_fail (plugin != NULL, FALSE);
- plugin->name = g_strdup(name);
- plugin->longname = NULL;
- plugin->elements = NULL;
- plugin->numelements = 0;
- plugin->types = NULL;
- plugin->numtypes = 0;
- plugin->autopluggers = NULL;
- plugin->numautopluggers = 0;
- plugin->loaded = TRUE;
+ if (!plugin->module)
+ return TRUE;
- return plugin;
+ if (g_module_close (plugin->module)) {
+ plugin->module = NULL;
+ GST_INFO (GST_CAT_PLUGIN_LOADING, "plugin \"%s\" unloaded", plugin->filename);
+ return TRUE;
+ }
+ else {
+ GST_INFO (GST_CAT_PLUGIN_LOADING, "failed to unload plugin \"%s\"", plugin->filename);
+ return FALSE;
+ }
}
/**
{
g_return_if_fail (plugin != NULL);
- if (plugin->name)
- g_free (plugin->name);
+ g_free (plugin->name);
plugin->name = g_strdup (name);
}
{
g_return_if_fail(plugin != NULL);
- if (plugin->longname)
- g_free(plugin->longname);
+ g_free(plugin->longname);
plugin->longname = g_strdup(longname);
}
{
g_return_val_if_fail (plugin != NULL, FALSE);
- return plugin->loaded;
+ return (plugin->module != NULL);
}
-
/**
- * gst_plugin_find:
- * @name: name of plugin to find
- *
- * Search the list of registered plugins for one of the given name
- *
- * Returns: pointer to the #GstPlugin if found, NULL otherwise
- */
-GstPlugin*
-gst_plugin_find (const gchar *name)
-{
- GList *plugins = _gst_plugins;
-
- g_return_val_if_fail(name != NULL, NULL);
-
- while (plugins) {
- GstPlugin *plugin = (GstPlugin *)plugins->data;
-// g_print("plugin name is '%s'\n",plugin->name);
- if (plugin->name) {
- if (!strcmp(plugin->name,name)) {
- return plugin;
- }
- }
- plugins = g_list_next(plugins);
- }
- return NULL;
-}
-
-static GstElementFactory*
-gst_plugin_find_elementfactory (const gchar *name)
-{
- GList *plugins, *factories;
- GstElementFactory *factory;
-
- g_return_val_if_fail(name != NULL, NULL);
-
- plugins = _gst_plugins;
- while (plugins) {
- factories = ((GstPlugin *)(plugins->data))->elements;
- while (factories) {
- factory = (GstElementFactory*)(factories->data);
- if (!strcmp(factory->name, name))
- return (GstElementFactory*)(factory);
- factories = g_list_next(factories);
- }
- plugins = g_list_next(plugins);
- }
-
- return NULL;
-}
-
-/**
- * gst_plugin_load_elementfactory:
- * @name: name of elementfactory to load
+ * gst_plugin_feature_list:
+ * @plugin: plugin to query
+ * @filter: the filter to use
+ * @first: only return first match
+ * @user_data: user data passed to the filter function
*
- * Load a registered elementfactory by name.
+ * Runs a filter against all plugin features and returns a GList with
+ * the results. If the first flag is set, only the first match is
+ * returned (as a list with a single object).
*
- * Returns: @GstElementFactory if loaded, NULL if not
+ * Returns: a GList of features, g_list_free after use.
*/
-GstElementFactory*
-gst_plugin_load_elementfactory (const gchar *name)
-{
- GList *plugins, *factories;
- GstElementFactory *factory = NULL;
- GstPlugin *plugin;
-
- g_return_val_if_fail(name != NULL, NULL);
-
- plugins = _gst_plugins;
- while (plugins) {
- plugin = (GstPlugin *)plugins->data;
- factories = plugin->elements;
-
- while (factories) {
- factory = (GstElementFactory*)(factories->data);
-
- if (!strcmp(factory->name,name)) {
- if (!plugin->loaded) {
- gchar *filename = g_strdup (plugin->filename);
- gchar *pluginname = g_strdup (plugin->name);
-
- GST_INFO (GST_CAT_PLUGIN_LOADING,"loaded elementfactory %s from plugin %s",name,plugin->name);
- gst_plugin_remove(plugin);
- if (!gst_plugin_load_absolute(filename)) {
- GST_DEBUG (0,"gstplugin: error loading element factory %s from plugin %s\n", name, pluginname);
- }
- g_free (pluginname);
- g_free (filename);
- }
- factory = gst_plugin_find_elementfactory(name);
- return factory;
- }
- factories = g_list_next(factories);
- }
- plugins = g_list_next(plugins);
- }
-
- return factory;
-}
-
-static GstAutoplugFactory*
-gst_plugin_find_autoplugfactory (const gchar *name)
+GList*
+gst_plugin_feature_filter (GstPlugin *plugin,
+ GstPluginFeatureFilter filter,
+ gboolean first,
+ gpointer user_data)
{
- GList *plugins, *factories;
- GstAutoplugFactory *factory;
-
- g_return_val_if_fail(name != NULL, NULL);
-
- plugins = _gst_plugins;
- while (plugins) {
- factories = ((GstPlugin *)(plugins->data))->autopluggers;
- while (factories) {
- factory = (GstAutoplugFactory*)(factories->data);
- if (!strcmp(factory->name, name))
- return (GstAutoplugFactory*)(factory);
- factories = g_list_next(factories);
- }
- plugins = g_list_next(plugins);
- }
-
- return NULL;
+ return gst_filter_run (plugin->features, (GstFilterFunc) filter, first, user_data);
}
-/**
- * gst_plugin_load_autoplugfactory:
- * @name: name of autoplugfactory to load
- *
- * Load a registered autoplugfactory by name.
- *
- * Returns: @GstAutoplugFactory if loaded, NULL if not
- */
-GstAutoplugFactory*
-gst_plugin_load_autoplugfactory (const gchar *name)
-{
- GList *plugins, *factories;
- GstAutoplugFactory *factory = NULL;
- GstPlugin *plugin;
-
- g_return_val_if_fail(name != NULL, NULL);
-
- plugins = _gst_plugins;
- while (plugins) {
- plugin = (GstPlugin *)plugins->data;
- factories = plugin->autopluggers;
-
- while (factories) {
- factory = (GstAutoplugFactory*)(factories->data);
-
- if (!strcmp(factory->name,name)) {
- if (!plugin->loaded) {
- gchar *filename = g_strdup (plugin->filename);
- gchar *pluginname = g_strdup (plugin->name);
-
- GST_INFO (GST_CAT_PLUGIN_LOADING,"loaded autoplugfactory %s from plugin %s",name,plugin->name);
- gst_plugin_remove(plugin);
- if (!gst_plugin_load_absolute(filename)) {
- GST_DEBUG (0,"gstplugin: error loading autoplug factory %s from plugin %s\n", name, pluginname);
- }
- g_free (pluginname);
- g_free (filename);
- }
- factory = gst_plugin_find_autoplugfactory(name);
- return factory;
- }
- factories = g_list_next(factories);
- }
- plugins = g_list_next(plugins);
- }
- return factory;
-}
+typedef struct
+{
+ GstPluginFeatureFilter filter;
+ gboolean first;
+ gpointer user_data;
+ GList *result;
+} FeatureFilterData;
-/**
- * gst_plugin_load_typefactory:
- * @mime: name of typefactory to load
- *
- * Load a registered typefactory by mime type.
- */
-void
-gst_plugin_load_typefactory (const gchar *mime)
+static gboolean
+_feature_filter (GstPlugin *plugin, gpointer user_data)
{
- GList *plugins, *factories;
- GstTypeFactory *factory;
- GstPlugin *plugin;
-
- g_return_if_fail (mime != NULL);
-
- plugins = g_list_copy (_gst_plugins);
- while (plugins) {
- plugin = (GstPlugin *)plugins->data;
- factories = g_list_copy (plugin->types);
-
- while (factories) {
- factory = (GstTypeFactory*)(factories->data);
-
- if (!strcmp(factory->mime,mime)) {
- if (!plugin->loaded) {
- gchar *filename = g_strdup (plugin->filename);
- gchar *pluginname = g_strdup (plugin->name);
-
- GST_INFO (GST_CAT_PLUGIN_LOADING,"loading type factory for \"%s\" from plugin %s",mime,plugin->name);
- plugin->loaded = TRUE;
- gst_plugin_remove(plugin);
- if (!gst_plugin_load_absolute(filename)) {
- GST_DEBUG (0,"gstplugin: error loading type factory \"%s\" from plugin %s\n", mime, pluginname);
- }
- g_free (filename);
- g_free (pluginname);
- }
- //return;
- }
- factories = g_list_next(factories);
- }
+ GList *result;
+ FeatureFilterData *data = (FeatureFilterData *) user_data;
- g_list_free (factories);
- plugins = g_list_next(plugins);
+ result = gst_plugin_feature_filter (plugin, data->filter, data->first, data->user_data);
+ if (result) {
+ data->result = g_list_concat (data->result, result);
+ return TRUE;
}
- g_list_free (plugins);
-
- return;
-}
-
-/**
- * gst_plugin_add_factory:
- * @plugin: plugin to add factory to
- * @factory: factory to add
- *
- * Add factory to the list of those provided by the plugin.
- */
-void
-gst_plugin_add_factory (GstPlugin *plugin, GstElementFactory *factory)
-{
- g_return_if_fail (plugin != NULL);
- g_return_if_fail (factory != NULL);
-
-// g_print("adding factory to plugin\n");
- plugin->elements = g_list_prepend (plugin->elements, factory);
- plugin->numelements++;
+ return FALSE;
}
/**
- * gst_plugin_add_type:
- * @plugin: plugin to add type to
- * @factory: the typefactory to add
- *
- * Add a typefactory to the list of those provided by the plugin.
+ * gst_plugin_list_feature_list:
+ * @list: a list of plugins to query
+ * @filter: the filter to use
+ * @first: only return first match
+ * @user_data: user data passed to the filter function
+ *
+ * Runs a filter against all plugin features of the plugins in the given
+ * list and returns a GList with the results.
+ * If the first flag is set, only the first match is
+ * returned (as a list with a single object).
+ *
+ * Returns: a GList of features, g_list_free after use.
*/
-void
-gst_plugin_add_type (GstPlugin *plugin, GstTypeFactory *factory)
+GList*
+gst_plugin_list_feature_filter (GList *list,
+ GstPluginFeatureFilter filter,
+ gboolean first,
+ gpointer user_data)
{
- g_return_if_fail (plugin != NULL);
- g_return_if_fail (factory != NULL);
+ FeatureFilterData data;
+ GList *result;
-// g_print("adding factory to plugin\n");
- plugin->types = g_list_prepend (plugin->types, factory);
- plugin->numtypes++;
- gst_type_register (factory);
-}
+ data.filter = filter;
+ data.first = first;
+ data.user_data = user_data;
+ data.result = NULL;
-/**
- * gst_plugin_add_autoplugger:
- * @plugin: plugin to add the autoplugger to
- * @factory: the autoplugfactory to add
- *
- * Add an autoplugfactory to the list of those provided by the plugin.
- */
-void
-gst_plugin_add_autoplugger (GstPlugin *plugin, GstAutoplugFactory *factory)
-{
- g_return_if_fail (plugin != NULL);
- g_return_if_fail (factory != NULL);
+ result = gst_filter_run (list, (GstFilterFunc) _feature_filter, first, &data);
+ g_list_free (result);
-// g_print("adding factory to plugin\n");
- plugin->autopluggers = g_list_prepend (plugin->autopluggers, factory);
- plugin->numautopluggers++;
+ return data.result;
}
/**
- * gst_plugin_get_list:
+ * gst_plugin_name_filter:
+ * @plugin: the plugin to check
+ * @name: the name of the plugin
*
- * get the currently loaded plugins
+ * A standard filterthat returns TRUE when the plugin is of the
+ * given name.
*
- * Returns; a GList of GstPlugin elements
+ * Returns: TRUE if the plugin is of the given name.
*/
-GList*
-gst_plugin_get_list (void)
+gboolean
+gst_plugin_name_filter (GstPlugin *plugin, const gchar *name)
{
- return _gst_plugins;
+ return (plugin->name && !strcmp (plugin->name, name));
}
/**
- * gst_plugin_save_thyself:
- * @parent: the parent node to save the plugin to
+ * 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
*
- * saves the plugin into an XML representation
+ * Find a feature of the given name and type in the given plugin.
*
- * Returns: the new XML node
+ * Returns: a GstPluginFeature or NULL if the feature was not found.
*/
-xmlNodePtr
-gst_plugin_save_thyself (xmlNodePtr parent)
+GstPluginFeature*
+gst_plugin_find_feature (GstPlugin *plugin, const gchar *name, GType type)
{
- xmlNodePtr tree, subtree;
- GList *plugins = NULL, *elements = NULL, *types = NULL, *autopluggers = NULL;
+ GList *walk;
+ GstPluginFeature *result = NULL;
+ GstTypeNameData data;
- plugins = gst_plugin_get_list ();
- while (plugins) {
- GstPlugin *plugin = (GstPlugin *)plugins->data;
+ g_return_val_if_fail (name != NULL, NULL);
- tree = xmlNewChild (parent, NULL, "plugin", NULL);
- xmlNewChild (tree, NULL, "name", plugin->name);
- xmlNewChild (tree, NULL, "longname", plugin->longname);
- xmlNewChild (tree, NULL, "filename", plugin->filename);
+ data.type = type;
+ data.name = name;
+
+ walk = gst_filter_run (plugin->features,
+ (GstFilterFunc) gst_plugin_feature_type_name_filter, TRUE,
+ &data);
- types = plugin->types;
- while (types) {
- GstTypeFactory *factory = (GstTypeFactory *)types->data;
- subtree = xmlNewChild(tree, NULL, "typefactory", NULL);
+ if (walk)
+ result = GST_PLUGIN_FEATURE (walk->data);
- gst_typefactory_save_thyself (factory, subtree);
-
- types = g_list_next (types);
- }
- elements = plugin->elements;
- while (elements) {
- GstElementFactory *factory = (GstElementFactory *)elements->data;
- subtree = xmlNewChild (tree, NULL, "elementfactory", NULL);
-
- gst_elementfactory_save_thyself (factory, subtree);
-
- elements = g_list_next (elements);
- }
- autopluggers = plugin->autopluggers;
- while (autopluggers) {
- GstAutoplugFactory *factory = (GstAutoplugFactory *)autopluggers->data;
- subtree = xmlNewChild (tree, NULL, "autoplugfactory", NULL);
-
- gst_autoplugfactory_save_thyself (factory, subtree);
-
- autopluggers = g_list_next (autopluggers);
- }
- plugins = g_list_next (plugins);
- }
- return parent;
+ return result;
}
/**
- * gst_plugin_load_thyself:
- * @parent: the parent node to load the plugin from
+ * gst_plugin_add_feature:
+ * @plugin: plugin to add feature to
+ * @feature: feature to add
*
- * load the plugin from an XML representation
+ * Add feature to the list of those provided by the plugin.
+ * There is a separate namespace for each plugin feature type.
+ * See #gst_plugin_get_feature_list
*/
void
-gst_plugin_load_thyself (xmlNodePtr parent)
+gst_plugin_add_feature (GstPlugin *plugin, GstPluginFeature *feature)
{
- xmlNodePtr kinderen;
- gint elementcount = 0;
- gint autoplugcount = 0;
- gint typecount = 0;
- gchar *pluginname;
-
- kinderen = parent->xmlChildrenNode; // Dutch invasion :-)
- while (kinderen) {
- if (!strcmp (kinderen->name, "plugin")) {
- xmlNodePtr field = kinderen->xmlChildrenNode;
- GstPlugin *plugin = g_new0 (GstPlugin, 1);
-
- plugin->elements = NULL;
- plugin->types = NULL;
- plugin->loaded = FALSE;
-
- while (field) {
- if (!strcmp (field->name, "name")) {
- pluginname = xmlNodeGetContent (field);
- if (gst_plugin_find (pluginname)) {
- g_free (pluginname);
- g_free (plugin);
- plugin = NULL;
- break;
- } else {
- plugin->name = pluginname;
- }
- }
- else if (!strcmp (field->name, "longname")) {
- plugin->longname = xmlNodeGetContent (field);
- }
- else if (!strcmp (field->name, "filename")) {
- plugin->filename = xmlNodeGetContent (field);
- }
- else if (!strcmp (field->name, "elementfactory")) {
- GstElementFactory *factory = gst_elementfactory_load_thyself (field);
- gst_plugin_add_factory (plugin, factory);
- elementcount++;
- }
- else if (!strcmp (field->name, "autoplugfactory")) {
- GstAutoplugFactory *factory = gst_autoplugfactory_load_thyself (field);
- gst_plugin_add_autoplugger (plugin, factory);
- autoplugcount++;
- }
- else if (!strcmp (field->name, "typefactory")) {
- GstTypeFactory *factory = gst_typefactory_load_thyself (field);
- gst_plugin_add_type (plugin, factory);
- elementcount++;
- typecount++;
- }
-
- field = field->next;
- }
+ GstPluginFeature *oldfeature;
- if (plugin) {
- _gst_plugins = g_list_prepend (_gst_plugins, plugin);
- }
- }
+ g_return_if_fail (plugin != NULL);
+ g_return_if_fail (GST_IS_PLUGIN_FEATURE (feature));
+ g_return_if_fail (feature != NULL);
- kinderen = kinderen->next;
+ oldfeature = gst_plugin_find_feature (plugin,
+ GST_PLUGIN_FEATURE_NAME (feature), G_OBJECT_TYPE (feature));
+
+ if (!oldfeature) {
+ feature->manager = plugin;
+ plugin->features = g_list_prepend (plugin->features, feature);
+ plugin->numfeatures++;
}
- GST_INFO (GST_CAT_PLUGIN_LOADING, "added %d registered factories, %d autopluggers and %d types",
- elementcount, autoplugcount, typecount);
}
-
/**
- * gst_plugin_get_factory_list:
- * @plugin: the plugin to get the factories from
+ * gst_plugin_get_feature_list:
+ * @plugin: the plugin to get the features from
*
- * get a list of all the factories that this plugin provides
+ * get a list of all the features that this plugin provides
*
- * Returns: a GList of factories
+ * Returns: a GList of features, use g_list_free to free the list.
*/
GList*
-gst_plugin_get_factory_list (GstPlugin *plugin)
+gst_plugin_get_feature_list (GstPlugin *plugin)
{
g_return_val_if_fail (plugin != NULL, NULL);
- return plugin->elements;
+ return g_list_copy (plugin->features);
}
/**
- * gst_plugin_get_type_list:
- * @plugin: the plugin to get the typefactories from
+ * gst_plugin_load:
+ * @name: name of plugin to load
*
- * get a list of all the typefactories that this plugin provides
+ * Load the named plugin.
*
- * Returns: a GList of factories
+ * Returns: whether the plugin was loaded or not
*/
-GList*
-gst_plugin_get_type_list (GstPlugin *plugin)
+gboolean
+gst_plugin_load (const gchar *name)
{
- g_return_val_if_fail (plugin != NULL, NULL);
+ GstPlugin *plugin;
+ GError *error = NULL;
+
+ plugin = gst_registry_pool_find_plugin (name);
+ if (plugin) {
+ gboolean result = gst_plugin_load_plugin (plugin, &error);
+ if (error) {
+ GST_DEBUG (GST_CAT_PLUGIN_LOADING, "load_plugin error: %s\n",
+ error->message);
+ g_error_free (error);
+ }
+ return result;
+ }
+
+ GST_DEBUG (GST_CAT_PLUGIN_LOADING, "Could not find %s in registry pool",
+ name);
- return plugin->types;
+ return FALSE;
}
/**
- * gst_plugin_get_autoplug_list:
- * @plugin: the plugin to get the autoplugfactories from
+ * gst_library_load:
+ * @name: name of library to load
*
- * get a list of all the autoplugfactories that this plugin provides
+ * Load the named library. Name should be given as
+ * "liblibrary.so".
*
- * Returns: a GList of factories
+ * Returns: whether the library was loaded or not
*/
-GList*
-gst_plugin_get_autoplug_list (GstPlugin *plugin)
+gboolean
+gst_library_load (const gchar *name)
{
- g_return_val_if_fail (plugin != NULL, NULL);
+ gboolean res;
+
+ /* for now this is the same */
+ res = gst_plugin_load (name);
- return plugin->autopluggers;
+ return res;
}
projects / platform / upstream / gstreamer.git / blobdiff