| /* GStreamer |
| * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu> |
| * 2000 Wim Taymans <wtay@chello.be> |
| * |
| * gst.c: Initialization and non-pipeline operations |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| /** |
| * SECTION:gst |
| * @short_description: Media library supporting arbitrary formats and filter |
| * graphs. |
| * |
| * GStreamer is a framework for constructing graphs of various filters |
| * (termed elements here) that will handle streaming media. Any discrete |
| * (packetizable) media type is supported, with provisions for automatically |
| * determining source type. Formatting/framing information is provided with |
| * a powerful negotiation framework. Plugins are heavily used to provide for |
| * all elements, allowing one to construct plugins outside of the GST |
| * library, even released binary-only if license require (please don't). |
| * GStreamer covers a wide range of use cases including: playback, recording, |
| * editing, serving streams, voice over ip and video calls. |
| * |
| * The <application>GStreamer</application> library should be initialized with |
| * gst_init() before it can be used. You should pass pointers to the main argc |
| * and argv variables so that GStreamer can process its own command line |
| * options, as shown in the following example. |
| * |
| * <example> |
| * <title>Initializing the gstreamer library</title> |
| * <programlisting language="c"> |
| * int |
| * main (int argc, char *argv[]) |
| * { |
| * // initialize the GStreamer library |
| * gst_init (&argc, &argv); |
| * ... |
| * } |
| * </programlisting> |
| * </example> |
| * |
| * It's allowed to pass two %NULL pointers to gst_init() in case you don't want |
| * to pass the command line args to GStreamer. |
| * |
| * You can also use GOption to initialize your own parameters as shown in |
| * the next code fragment: |
| * <example> |
| * <title>Initializing own parameters when initializing gstreamer</title> |
| * <programlisting> |
| * static gboolean stats = FALSE; |
| * ... |
| * int |
| * main (int argc, char *argv[]) |
| * { |
| * GOptionEntry options[] = { |
| * {"tags", 't', 0, G_OPTION_ARG_NONE, &tags, |
| * N_("Output tags (also known as metadata)"), NULL}, |
| * {NULL} |
| * }; |
| * ctx = g_option_context_new ("[ADDITIONAL ARGUMENTS]"); |
| * 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", GST_STR_NULL (err->message)); |
| * exit (1); |
| * } |
| * g_option_context_free (ctx); |
| * ... |
| * } |
| * </programlisting> |
| * </example> |
| * |
| * Use gst_version() to query the library version at runtime or use the |
| * GST_VERSION_* macros to find the version at compile time. Optionally |
| * gst_version_string() returns a printable string. |
| * |
| * The gst_deinit() call is used to clean up all internal resources used |
| * by <application>GStreamer</application>. It is mostly used in unit tests |
| * to check for leaks. |
| */ |
| |
| #include "gst_private.h" |
| #include "gstconfig.h" |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <sys/types.h> |
| #ifdef HAVE_SYS_UTSNAME_H |
| #include <sys/utsname.h> |
| #endif |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| #ifdef G_OS_WIN32 |
| #define WIN32_LEAN_AND_MEAN /* prevents from including too many things */ |
| #include <windows.h> /* GetStdHandle, windows console */ |
| #endif |
| |
| #include "gst-i18n-lib.h" |
| #include <locale.h> /* for LC_ALL */ |
| |
| #include "gst.h" |
| #include "gsttrace.h" |
| |
| #define GST_CAT_DEFAULT GST_CAT_GST_INIT |
| |
| #define MAX_PATH_SPLIT 16 |
| #define GST_PLUGIN_SEPARATOR "," |
| |
| static gboolean gst_initialized = FALSE; |
| static gboolean gst_deinitialized = FALSE; |
| |
| #ifdef G_OS_WIN32 |
| HMODULE _priv_gst_dll_handle = NULL; |
| #endif |
| |
| #ifndef GST_DISABLE_REGISTRY |
| GList *_priv_gst_plugin_paths = NULL; /* for delayed processing in post_init */ |
| |
| extern gboolean _priv_gst_disable_registry_update; |
| #endif |
| |
| #ifndef GST_DISABLE_GST_DEBUG |
| const gchar *priv_gst_dump_dot_dir; |
| #endif |
| |
| /* defaults */ |
| |
| /* set to TRUE when segfaults need to be left as is */ |
| static gboolean _gst_disable_segtrap = FALSE; |
| |
| static gboolean init_pre (GOptionContext * context, GOptionGroup * group, |
| gpointer data, GError ** error); |
| static gboolean init_post (GOptionContext * context, GOptionGroup * group, |
| gpointer data, GError ** error); |
| #ifndef GST_DISABLE_OPTION_PARSING |
| static gboolean parse_goption_arg (const gchar * s_opt, |
| const gchar * arg, gpointer data, GError ** err); |
| #endif |
| |
| GSList *_priv_gst_preload_plugins = NULL; |
| |
| const gchar g_log_domain_gstreamer[] = "GStreamer"; |
| |
| static void |
| debug_log_handler (const gchar * log_domain, |
| GLogLevelFlags log_level, const gchar * message, gpointer user_data) |
| { |
| g_log_default_handler (log_domain, log_level, message, user_data); |
| /* FIXME: do we still need this ? fatal errors these days are all |
| * other than core errors */ |
| /* g_on_error_query (NULL); */ |
| } |
| |
| enum |
| { |
| ARG_VERSION = 1, |
| ARG_FATAL_WARNINGS, |
| #ifndef GST_DISABLE_GST_DEBUG |
| ARG_DEBUG_LEVEL, |
| ARG_DEBUG, |
| ARG_DEBUG_DISABLE, |
| ARG_DEBUG_NO_COLOR, |
| ARG_DEBUG_COLOR_MODE, |
| ARG_DEBUG_HELP, |
| #endif |
| ARG_PLUGIN_SPEW, |
| ARG_PLUGIN_PATH, |
| ARG_PLUGIN_LOAD, |
| ARG_SEGTRAP_DISABLE, |
| ARG_REGISTRY_UPDATE_DISABLE, |
| ARG_REGISTRY_FORK_DISABLE |
| }; |
| |
| /* debug-spec ::= category-spec [, category-spec]* |
| * category-spec ::= category:val | val |
| * category ::= [^:]+ |
| * val ::= [0-5] |
| */ |
| |
| #ifdef G_OS_WIN32 |
| /* Note: DllMain is only called when DLLs are loaded or unloaded, so this will |
| * never be called if libgstreamer-1.0 is linked statically. Do not add any code |
| * here to, say, initialize variables or set things up since that will only |
| * happen for dynamically-built GStreamer. |
| * |
| * Also, ideally this should not be defined when GStreamer is built statically. |
| * i.e., it should be conditional on #ifdef DLL_EXPORT. It will be ignored, but |
| * if other libraries make the same mistake of defining it when building |
| * statically, there will be a symbol collision during linking. Fixing this |
| * requires one to build two object files: one for static linking and another |
| * for dynamic linking. */ |
| BOOL WINAPI DllMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved); |
| BOOL WINAPI |
| DllMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) |
| { |
| if (fdwReason == DLL_PROCESS_ATTACH) |
| _priv_gst_dll_handle = (HMODULE) hinstDLL; |
| return TRUE; |
| } |
| |
| #endif |
| |
| /** |
| * gst_init_get_option_group: (skip) |
| * |
| * Returns a #GOptionGroup with GStreamer's argument specifications. The |
| * group is set up to use standard GOption callbacks, so when using this |
| * group in combination with GOption parsing methods, all argument parsing |
| * and initialization is automated. |
| * |
| * This function is useful if you want to integrate GStreamer with other |
| * libraries that use GOption (see g_option_context_add_group() ). |
| * |
| * If you use this function, you should make sure you initialise the GLib |
| * threading system as one of the very first things in your program |
| * (see the example at the beginning of this section). |
| * |
| * Returns: (transfer full): a pointer to GStreamer's option group. |
| */ |
| |
| GOptionGroup * |
| gst_init_get_option_group (void) |
| { |
| #ifndef GST_DISABLE_OPTION_PARSING |
| GOptionGroup *group; |
| static const GOptionEntry gst_args[] = { |
| {"gst-version", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, |
| (gpointer) parse_goption_arg, N_("Print the GStreamer version"), NULL}, |
| {"gst-fatal-warnings", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, |
| (gpointer) parse_goption_arg, N_("Make all warnings fatal"), NULL}, |
| #ifndef GST_DISABLE_GST_DEBUG |
| {"gst-debug-help", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, |
| (gpointer) parse_goption_arg, |
| N_("Print available debug categories and exit"), |
| NULL}, |
| {"gst-debug-level", 0, 0, G_OPTION_ARG_CALLBACK, |
| (gpointer) parse_goption_arg, |
| N_("Default debug level from 1 (only error) to 9 (anything) or " |
| "0 for no output"), |
| N_("LEVEL")}, |
| {"gst-debug", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) parse_goption_arg, |
| N_("Comma-separated list of category_name:level pairs to set " |
| "specific levels for the individual categories. Example: " |
| "GST_AUTOPLUG:5,GST_ELEMENT_*:3"), |
| N_("LIST")}, |
| {"gst-debug-no-color", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, |
| (gpointer) parse_goption_arg, N_("Disable colored debugging output"), |
| NULL}, |
| {"gst-debug-color-mode", 0, 0, G_OPTION_ARG_CALLBACK, |
| (gpointer) parse_goption_arg, |
| N_("Changes coloring mode of the debug log. " |
| "Possible modes: off, on, disable, auto, unix"), |
| NULL}, |
| {"gst-debug-disable", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, |
| (gpointer) parse_goption_arg, N_("Disable debugging"), NULL}, |
| #endif |
| {"gst-plugin-spew", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, |
| (gpointer) parse_goption_arg, |
| N_("Enable verbose plugin loading diagnostics"), |
| NULL}, |
| {"gst-plugin-path", 0, 0, G_OPTION_ARG_CALLBACK, |
| (gpointer) parse_goption_arg, |
| N_("Colon-separated paths containing plugins"), N_("PATHS")}, |
| {"gst-plugin-load", 0, 0, G_OPTION_ARG_CALLBACK, |
| (gpointer) parse_goption_arg, |
| N_("Comma-separated list of plugins to preload in addition to the " |
| "list stored in environment variable GST_PLUGIN_PATH"), |
| N_("PLUGINS")}, |
| {"gst-disable-segtrap", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, |
| (gpointer) parse_goption_arg, |
| N_("Disable trapping of segmentation faults during plugin loading"), |
| NULL}, |
| {"gst-disable-registry-update", 0, G_OPTION_FLAG_NO_ARG, |
| G_OPTION_ARG_CALLBACK, |
| (gpointer) parse_goption_arg, |
| N_("Disable updating the registry"), |
| NULL}, |
| {"gst-disable-registry-fork", 0, G_OPTION_FLAG_NO_ARG, |
| G_OPTION_ARG_CALLBACK, |
| (gpointer) parse_goption_arg, |
| N_("Disable spawning a helper process while scanning the registry"), |
| NULL}, |
| {NULL} |
| }; |
| |
| group = g_option_group_new ("gst", _("GStreamer Options"), |
| _("Show GStreamer Options"), NULL, NULL); |
| g_option_group_set_parse_hooks (group, (GOptionParseFunc) init_pre, |
| (GOptionParseFunc) init_post); |
| |
| g_option_group_add_entries (group, gst_args); |
| g_option_group_set_translation_domain (group, GETTEXT_PACKAGE); |
| |
| return group; |
| #else |
| return NULL; |
| #endif |
| } |
| |
| /** |
| * gst_init_check: |
| * @argc: (inout) (allow-none): pointer to application's argc |
| * @argv: (inout) (array length=argc) (allow-none): pointer to application's argv |
| * @err: pointer to a #GError to which a message will be posted on error |
| * |
| * Initializes the GStreamer library, setting up internal path lists, |
| * registering built-in elements, and loading standard plugins. |
| * |
| * This function will return %FALSE if GStreamer could not be initialized |
| * for some reason. If you want your program to fail fatally, |
| * use gst_init() instead. |
| * |
| * Returns: %TRUE if GStreamer could be initialized. |
| */ |
| gboolean |
| gst_init_check (int *argc, char **argv[], GError ** err) |
| { |
| static GMutex init_lock; |
| #ifndef GST_DISABLE_OPTION_PARSING |
| GOptionGroup *group; |
| GOptionContext *ctx; |
| #endif |
| gboolean res; |
| |
| g_mutex_lock (&init_lock); |
| |
| if (gst_initialized) { |
| GST_DEBUG ("already initialized gst"); |
| g_mutex_unlock (&init_lock); |
| return TRUE; |
| } |
| #ifndef GST_DISABLE_OPTION_PARSING |
| ctx = g_option_context_new ("- GStreamer initialization"); |
| g_option_context_set_ignore_unknown_options (ctx, TRUE); |
| g_option_context_set_help_enabled (ctx, FALSE); |
| group = gst_init_get_option_group (); |
| g_option_context_add_group (ctx, group); |
| res = g_option_context_parse (ctx, argc, argv, err); |
| g_option_context_free (ctx); |
| #else |
| init_pre (NULL, NULL, NULL, NULL); |
| init_post (NULL, NULL, NULL, NULL); |
| res = TRUE; |
| #endif |
| |
| gst_initialized = res; |
| |
| g_mutex_unlock (&init_lock); |
| |
| return res; |
| } |
| |
| /** |
| * gst_init: |
| * @argc: (inout) (allow-none): pointer to application's argc |
| * @argv: (inout) (array length=argc) (allow-none): pointer to application's argv |
| * |
| * Initializes the GStreamer library, setting up internal path lists, |
| * registering built-in elements, and loading standard plugins. |
| * |
| * Unless the plugin registry is disabled at compile time, the registry will be |
| * loaded. By default this will also check if the registry cache needs to be |
| * updated and rescan all plugins if needed. See gst_update_registry() for |
| * details and section |
| * <link linkend="gst-running">Running GStreamer Applications</link> |
| * for how to disable automatic registry updates. |
| * |
| * <note><para> |
| * This function will terminate your program if it was unable to initialize |
| * GStreamer for some reason. If you want your program to fall back, |
| * use gst_init_check() instead. |
| * </para></note> |
| * |
| * WARNING: This function does not work in the same way as corresponding |
| * functions in other glib-style libraries, such as gtk_init\(\). In |
| * particular, unknown command line options cause this function to |
| * abort program execution. |
| */ |
| void |
| gst_init (int *argc, char **argv[]) |
| { |
| GError *err = NULL; |
| |
| if (!gst_init_check (argc, argv, &err)) { |
| g_print ("Could not initialize GStreamer: %s\n", |
| err ? err->message : "unknown error occurred"); |
| if (err) { |
| g_error_free (err); |
| } |
| exit (1); |
| } |
| } |
| |
| /** |
| * gst_is_initialized: |
| * |
| * Use this function to check if GStreamer has been initialized with gst_init() |
| * or gst_init_check(). |
| * |
| * Returns: %TRUE if initialization has been done, %FALSE otherwise. |
| */ |
| gboolean |
| gst_is_initialized (void) |
| { |
| return gst_initialized; |
| } |
| |
| #ifndef GST_DISABLE_REGISTRY |
| static void |
| add_path_func (gpointer data, gpointer user_data) |
| { |
| GST_INFO ("Adding plugin path: \"%s\", will scan later", (gchar *) data); |
| _priv_gst_plugin_paths = |
| g_list_append (_priv_gst_plugin_paths, g_strdup (data)); |
| } |
| #endif |
| |
| #ifndef GST_DISABLE_OPTION_PARSING |
| static void |
| prepare_for_load_plugin_func (gpointer data, gpointer user_data) |
| { |
| _priv_gst_preload_plugins = |
| g_slist_prepend (_priv_gst_preload_plugins, g_strdup (data)); |
| } |
| #endif |
| |
| #ifndef GST_DISABLE_OPTION_PARSING |
| static void |
| split_and_iterate (const gchar * stringlist, const gchar * separator, |
| GFunc iterator, gpointer user_data) |
| { |
| gchar **strings; |
| gint j = 0; |
| gchar *lastlist = g_strdup (stringlist); |
| |
| while (lastlist) { |
| strings = g_strsplit (lastlist, separator, MAX_PATH_SPLIT); |
| g_free (lastlist); |
| lastlist = NULL; |
| |
| while (strings[j]) { |
| iterator (strings[j], user_data); |
| if (++j == MAX_PATH_SPLIT) { |
| lastlist = g_strdup (strings[j]); |
| j = 0; |
| break; |
| } |
| } |
| g_strfreev (strings); |
| } |
| } |
| #endif |
| |
| /* we have no fail cases yet, but maybe in the future */ |
| static gboolean |
| init_pre (GOptionContext * context, GOptionGroup * group, gpointer data, |
| GError ** error) |
| { |
| gchar *libdir; |
| if (gst_initialized) { |
| GST_DEBUG ("already initialized"); |
| return TRUE; |
| } |
| #if !GLIB_CHECK_VERSION(2, 35, 0) |
| g_type_init (); |
| #endif |
| |
| #ifndef GST_DISABLE_GST_DEBUG |
| _priv_gst_debug_init (); |
| priv_gst_dump_dot_dir = g_getenv ("GST_DEBUG_DUMP_DOT_DIR"); |
| #endif |
| |
| #ifdef ENABLE_NLS |
| bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR); |
| bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); |
| #endif /* ENABLE_NLS */ |
| |
| /* This is the earliest we can make stuff show up in the logs. |
| * So give some useful info about GStreamer here */ |
| #ifdef G_OS_WIN32 |
| { |
| gchar *basedir = |
| g_win32_get_package_installation_directory_of_module |
| (_priv_gst_dll_handle); |
| |
| libdir = g_build_filename (basedir, |
| #ifdef _DEBUG |
| "debug" |
| #endif |
| "lib", NULL); |
| g_free (basedir); |
| } |
| #else |
| libdir = g_strdup (LIBDIR); |
| #endif |
| GST_INFO ("Initializing GStreamer Core Library version %s", VERSION); |
| GST_INFO ("Using library installed in %s", libdir); |
| g_free (libdir); |
| |
| /* Print some basic system details if possible (OS/architecture) */ |
| #ifdef HAVE_SYS_UTSNAME_H |
| { |
| struct utsname sys_details; |
| |
| if (uname (&sys_details) == 0) { |
| GST_INFO ("%s %s %s %s %s", sys_details.sysname, |
| sys_details.nodename, sys_details.release, sys_details.version, |
| sys_details.machine); |
| } |
| } |
| #endif |
| |
| #ifndef G_ATOMIC_LOCK_FREE |
| GST_CAT_WARNING (GST_CAT_PERFORMANCE, "GLib atomic operations are NOT " |
| "implemented using real hardware atomic operations!"); |
| #endif |
| |
| return TRUE; |
| } |
| |
| static gboolean |
| gst_register_core_elements (GstPlugin * plugin) |
| { |
| /* register some standard builtin types */ |
| if (!gst_element_register (plugin, "bin", GST_RANK_PRIMARY, |
| GST_TYPE_BIN) || |
| !gst_element_register (plugin, "pipeline", GST_RANK_PRIMARY, |
| GST_TYPE_PIPELINE) |
| ) |
| g_assert_not_reached (); |
| |
| return TRUE; |
| } |
| |
| /* |
| * this bit handles: |
| * - initalization of threads if we use them |
| * - log handler |
| * - initial output |
| * - initializes gst_format |
| * - registers a bunch of types for gst_objects |
| * |
| * - we don't have cases yet where this fails, but in the future |
| * we might and then it's nice to be able to return that |
| */ |
| static gboolean |
| init_post (GOptionContext * context, GOptionGroup * group, gpointer data, |
| GError ** error) |
| { |
| GLogLevelFlags llf; |
| |
| if (gst_initialized) { |
| GST_DEBUG ("already initialized"); |
| return TRUE; |
| } |
| |
| llf = G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_ERROR | G_LOG_FLAG_FATAL; |
| g_log_set_handler (g_log_domain_gstreamer, llf, debug_log_handler, NULL); |
| |
| #ifndef GST_DISABLE_TRACE |
| _priv_gst_alloc_trace_initialize (); |
| #endif |
| |
| _priv_gst_mini_object_initialize (); |
| _priv_gst_quarks_initialize (); |
| _priv_gst_allocator_initialize (); |
| _priv_gst_memory_initialize (); |
| _priv_gst_format_initialize (); |
| _priv_gst_query_initialize (); |
| _priv_gst_structure_initialize (); |
| _priv_gst_caps_initialize (); |
| _priv_gst_caps_features_initialize (); |
| _priv_gst_meta_initialize (); |
| _priv_gst_message_initialize (); |
| |
| g_type_class_ref (gst_object_get_type ()); |
| g_type_class_ref (gst_pad_get_type ()); |
| g_type_class_ref (gst_element_factory_get_type ()); |
| g_type_class_ref (gst_element_get_type ()); |
| g_type_class_ref (gst_type_find_factory_get_type ()); |
| g_type_class_ref (gst_bin_get_type ()); |
| g_type_class_ref (gst_bus_get_type ()); |
| g_type_class_ref (gst_task_get_type ()); |
| g_type_class_ref (gst_clock_get_type ()); |
| g_type_class_ref (gst_debug_color_mode_get_type ()); |
| |
| gst_uri_handler_get_type (); |
| |
| g_type_class_ref (gst_object_flags_get_type ()); |
| g_type_class_ref (gst_bin_flags_get_type ()); |
| g_type_class_ref (gst_buffer_flags_get_type ()); |
| g_type_class_ref (gst_buffer_copy_flags_get_type ()); |
| g_type_class_ref (gst_bus_flags_get_type ()); |
| g_type_class_ref (gst_bus_sync_reply_get_type ()); |
| g_type_class_ref (gst_caps_flags_get_type ()); |
| g_type_class_ref (gst_clock_return_get_type ()); |
| g_type_class_ref (gst_clock_entry_type_get_type ()); |
| g_type_class_ref (gst_clock_flags_get_type ()); |
| g_type_class_ref (gst_clock_type_get_type ()); |
| g_type_class_ref (gst_debug_graph_details_get_type ()); |
| g_type_class_ref (gst_state_get_type ()); |
| g_type_class_ref (gst_state_change_return_get_type ()); |
| g_type_class_ref (gst_state_change_get_type ()); |
| g_type_class_ref (gst_element_flags_get_type ()); |
| g_type_class_ref (gst_core_error_get_type ()); |
| g_type_class_ref (gst_library_error_get_type ()); |
| g_type_class_ref (gst_resource_error_get_type ()); |
| g_type_class_ref (gst_stream_error_get_type ()); |
| g_type_class_ref (gst_event_type_flags_get_type ()); |
| g_type_class_ref (gst_event_type_get_type ()); |
| g_type_class_ref (gst_seek_type_get_type ()); |
| g_type_class_ref (gst_seek_flags_get_type ()); |
| g_type_class_ref (gst_qos_type_get_type ()); |
| g_type_class_ref (gst_format_get_type ()); |
| g_type_class_ref (gst_debug_level_get_type ()); |
| g_type_class_ref (gst_debug_color_flags_get_type ()); |
| g_type_class_ref (gst_iterator_result_get_type ()); |
| g_type_class_ref (gst_iterator_item_get_type ()); |
| g_type_class_ref (gst_message_type_get_type ()); |
| g_type_class_ref (gst_mini_object_flags_get_type ()); |
| g_type_class_ref (gst_pad_link_return_get_type ()); |
| g_type_class_ref (gst_pad_link_check_get_type ()); |
| g_type_class_ref (gst_flow_return_get_type ()); |
| g_type_class_ref (gst_pad_mode_get_type ()); |
| g_type_class_ref (gst_pad_direction_get_type ()); |
| g_type_class_ref (gst_pad_flags_get_type ()); |
| g_type_class_ref (gst_pad_presence_get_type ()); |
| g_type_class_ref (gst_pad_template_flags_get_type ()); |
| g_type_class_ref (gst_pipeline_flags_get_type ()); |
| g_type_class_ref (gst_plugin_error_get_type ()); |
| g_type_class_ref (gst_plugin_flags_get_type ()); |
| g_type_class_ref (gst_plugin_dependency_flags_get_type ()); |
| g_type_class_ref (gst_rank_get_type ()); |
| g_type_class_ref (gst_query_type_flags_get_type ()); |
| g_type_class_ref (gst_query_type_get_type ()); |
| g_type_class_ref (gst_buffering_mode_get_type ()); |
| g_type_class_ref (gst_stream_status_type_get_type ()); |
| g_type_class_ref (gst_structure_change_type_get_type ()); |
| g_type_class_ref (gst_tag_merge_mode_get_type ()); |
| g_type_class_ref (gst_tag_flag_get_type ()); |
| g_type_class_ref (gst_tag_scope_get_type ()); |
| g_type_class_ref (gst_task_pool_get_type ()); |
| g_type_class_ref (gst_task_state_get_type ()); |
| g_type_class_ref (gst_toc_entry_type_get_type ()); |
| g_type_class_ref (gst_type_find_probability_get_type ()); |
| g_type_class_ref (gst_uri_error_get_type ()); |
| g_type_class_ref (gst_uri_type_get_type ()); |
| g_type_class_ref (gst_parse_error_get_type ()); |
| g_type_class_ref (gst_parse_flags_get_type ()); |
| g_type_class_ref (gst_search_mode_get_type ()); |
| g_type_class_ref (gst_progress_type_get_type ()); |
| g_type_class_ref (gst_buffer_pool_acquire_flags_get_type ()); |
| g_type_class_ref (gst_memory_flags_get_type ()); |
| g_type_class_ref (gst_map_flags_get_type ()); |
| g_type_class_ref (gst_caps_intersect_mode_get_type ()); |
| g_type_class_ref (gst_pad_probe_type_get_type ()); |
| g_type_class_ref (gst_pad_probe_return_get_type ()); |
| g_type_class_ref (gst_segment_flags_get_type ()); |
| g_type_class_ref (gst_scheduling_flags_get_type ()); |
| g_type_class_ref (gst_meta_flags_get_type ()); |
| g_type_class_ref (gst_toc_entry_type_get_type ()); |
| g_type_class_ref (gst_toc_scope_get_type ()); |
| g_type_class_ref (gst_toc_loop_type_get_type ()); |
| g_type_class_ref (gst_control_binding_get_type ()); |
| g_type_class_ref (gst_control_source_get_type ()); |
| g_type_class_ref (gst_lock_flags_get_type ()); |
| g_type_class_ref (gst_allocator_flags_get_type ()); |
| g_type_class_ref (gst_stream_flags_get_type ()); |
| |
| _priv_gst_event_initialize (); |
| _priv_gst_buffer_initialize (); |
| _priv_gst_buffer_list_initialize (); |
| _priv_gst_sample_initialize (); |
| _priv_gst_context_initialize (); |
| _priv_gst_date_time_initialize (); |
| _priv_gst_tag_initialize (); |
| _priv_gst_toc_initialize (); |
| _priv_gst_value_initialize (); |
| |
| g_type_class_ref (gst_param_spec_fraction_get_type ()); |
| gst_parse_context_get_type (); |
| |
| _priv_gst_plugin_initialize (); |
| |
| /* register core plugins */ |
| gst_plugin_register_static (GST_VERSION_MAJOR, GST_VERSION_MINOR, |
| "staticelements", "core elements linked into the GStreamer library", |
| gst_register_core_elements, VERSION, GST_LICENSE, PACKAGE, |
| GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN); |
| |
| /* |
| * Any errors happening below this point are non-fatal, we therefore mark |
| * gstreamer as being initialized, since it is the case from a plugin point of |
| * view. |
| * |
| * If anything fails, it will be put back to %FALSE in gst_init_check(). |
| * This allows some special plugins that would call gst_init() to not cause a |
| * looping effect (i.e. initializing GStreamer twice). |
| */ |
| gst_initialized = TRUE; |
| |
| if (!gst_update_registry ()) |
| return FALSE; |
| |
| GST_INFO ("GLib runtime version: %d.%d.%d", glib_major_version, |
| glib_minor_version, glib_micro_version); |
| GST_INFO ("GLib headers version: %d.%d.%d", GLIB_MAJOR_VERSION, |
| GLIB_MINOR_VERSION, GLIB_MICRO_VERSION); |
| GST_INFO ("initialized GStreamer successfully"); |
| |
| return TRUE; |
| } |
| |
| #ifndef GST_DISABLE_GST_DEBUG |
| static gboolean |
| select_all (GstPlugin * plugin, gpointer user_data) |
| { |
| return TRUE; |
| } |
| |
| static gint |
| sort_by_category_name (gconstpointer a, gconstpointer b) |
| { |
| return strcmp (gst_debug_category_get_name ((GstDebugCategory *) a), |
| gst_debug_category_get_name ((GstDebugCategory *) b)); |
| } |
| |
| static void |
| gst_debug_help (void) |
| { |
| GSList *list, *walk; |
| GList *list2, *g; |
| |
| /* Need to ensure the registry is loaded to get debug categories */ |
| if (!init_post (NULL, NULL, NULL, NULL)) |
| exit (1); |
| |
| list2 = gst_registry_plugin_filter (gst_registry_get (), |
| select_all, FALSE, NULL); |
| |
| /* FIXME this is gross. why don't debug have categories PluginFeatures? */ |
| for (g = list2; g; g = g_list_next (g)) { |
| GstPlugin *plugin = GST_PLUGIN_CAST (g->data); |
| |
| gst_plugin_load (plugin); |
| } |
| g_list_free (list2); |
| |
| list = gst_debug_get_all_categories (); |
| walk = list = g_slist_sort (list, sort_by_category_name); |
| |
| g_print ("\n"); |
| g_print ("name level description\n"); |
| g_print ("---------------------+--------+--------------------------------\n"); |
| |
| while (walk) { |
| gboolean on_unix; |
| GstDebugCategory *cat = (GstDebugCategory *) walk->data; |
| GstDebugColorMode coloring = gst_debug_get_color_mode (); |
| #ifdef G_OS_UNIX |
| on_unix = TRUE; |
| #else |
| on_unix = FALSE; |
| #endif |
| |
| if (GST_DEBUG_COLOR_MODE_UNIX == coloring |
| || (on_unix && GST_DEBUG_COLOR_MODE_ON == coloring)) { |
| gchar *color = gst_debug_construct_term_color (cat->color); |
| |
| g_print ("%s%-20s\033[00m %1d %s %s%s\033[00m\n", |
| color, |
| gst_debug_category_get_name (cat), |
| gst_debug_category_get_threshold (cat), |
| gst_debug_level_get_name (gst_debug_category_get_threshold (cat)), |
| color, gst_debug_category_get_description (cat)); |
| g_free (color); |
| } else if (GST_DEBUG_COLOR_MODE_ON == coloring && !on_unix) { |
| #ifdef G_OS_WIN32 |
| gint color = gst_debug_construct_win_color (cat->color); |
| const gint clear = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE; |
| |
| SetConsoleTextAttribute (GetStdHandle (STD_OUTPUT_HANDLE), color); |
| g_print ("%-20s", gst_debug_category_get_name (cat)); |
| SetConsoleTextAttribute (GetStdHandle (STD_OUTPUT_HANDLE), clear); |
| g_print (" %1d %s ", gst_debug_category_get_threshold (cat), |
| gst_debug_level_get_name (gst_debug_category_get_threshold (cat))); |
| SetConsoleTextAttribute (GetStdHandle (STD_OUTPUT_HANDLE), color); |
| g_print ("%s", gst_debug_category_get_description (cat)); |
| SetConsoleTextAttribute (GetStdHandle (STD_OUTPUT_HANDLE), clear); |
| g_print ("\n"); |
| #endif /* G_OS_WIN32 */ |
| } else { |
| g_print ("%-20s %1d %s %s\n", gst_debug_category_get_name (cat), |
| gst_debug_category_get_threshold (cat), |
| gst_debug_level_get_name (gst_debug_category_get_threshold (cat)), |
| gst_debug_category_get_description (cat)); |
| } |
| walk = g_slist_next (walk); |
| } |
| g_slist_free (list); |
| g_print ("\n"); |
| } |
| #endif |
| |
| #ifndef GST_DISABLE_OPTION_PARSING |
| static gboolean |
| parse_one_option (gint opt, const gchar * arg, GError ** err) |
| { |
| switch (opt) { |
| case ARG_VERSION: |
| g_print ("GStreamer Core Library version %s\n", PACKAGE_VERSION); |
| exit (0); |
| case ARG_FATAL_WARNINGS:{ |
| GLogLevelFlags fatal_mask; |
| |
| fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK); |
| fatal_mask |= G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL; |
| g_log_set_always_fatal (fatal_mask); |
| break; |
| } |
| #ifndef GST_DISABLE_GST_DEBUG |
| case ARG_DEBUG_LEVEL:{ |
| GstDebugLevel tmp = GST_LEVEL_NONE; |
| |
| tmp = (GstDebugLevel) strtol (arg, NULL, 0); |
| if (((guint) tmp) < GST_LEVEL_COUNT) { |
| gst_debug_set_default_threshold (tmp); |
| } |
| break; |
| } |
| case ARG_DEBUG: |
| gst_debug_set_threshold_from_string (arg, FALSE); |
| break; |
| case ARG_DEBUG_NO_COLOR: |
| gst_debug_set_colored (FALSE); |
| break; |
| case ARG_DEBUG_COLOR_MODE: |
| gst_debug_set_color_mode_from_string (arg); |
| break; |
| case ARG_DEBUG_DISABLE: |
| gst_debug_set_active (FALSE); |
| break; |
| case ARG_DEBUG_HELP: |
| gst_debug_help (); |
| exit (0); |
| #endif |
| case ARG_PLUGIN_SPEW: |
| break; |
| case ARG_PLUGIN_PATH: |
| #ifndef GST_DISABLE_REGISTRY |
| split_and_iterate (arg, G_SEARCHPATH_SEPARATOR_S, add_path_func, NULL); |
| #endif /* GST_DISABLE_REGISTRY */ |
| break; |
| case ARG_PLUGIN_LOAD: |
| split_and_iterate (arg, ",", prepare_for_load_plugin_func, NULL); |
| break; |
| case ARG_SEGTRAP_DISABLE: |
| _gst_disable_segtrap = TRUE; |
| break; |
| case ARG_REGISTRY_UPDATE_DISABLE: |
| #ifndef GST_DISABLE_REGISTRY |
| _priv_gst_disable_registry_update = TRUE; |
| #endif |
| break; |
| case ARG_REGISTRY_FORK_DISABLE: |
| gst_registry_fork_set_enabled (FALSE); |
| break; |
| default: |
| g_set_error (err, G_OPTION_ERROR, G_OPTION_ERROR_UNKNOWN_OPTION, |
| _("Unknown option")); |
| return FALSE; |
| } |
| |
| return TRUE; |
| } |
| |
| static gboolean |
| parse_goption_arg (const gchar * opt, |
| const gchar * arg, gpointer data, GError ** err) |
| { |
| static const struct |
| { |
| const gchar *opt; |
| int val; |
| } options[] = { |
| { |
| "--gst-version", ARG_VERSION}, { |
| "--gst-fatal-warnings", ARG_FATAL_WARNINGS}, |
| #ifndef GST_DISABLE_GST_DEBUG |
| { |
| "--gst-debug-level", ARG_DEBUG_LEVEL}, { |
| "--gst-debug", ARG_DEBUG}, { |
| "--gst-debug-disable", ARG_DEBUG_DISABLE}, { |
| "--gst-debug-no-color", ARG_DEBUG_NO_COLOR}, { |
| "--gst-debug-color-mode", ARG_DEBUG_COLOR_MODE}, { |
| "--gst-debug-help", ARG_DEBUG_HELP}, |
| #endif |
| { |
| "--gst-plugin-spew", ARG_PLUGIN_SPEW}, { |
| "--gst-plugin-path", ARG_PLUGIN_PATH}, { |
| "--gst-plugin-load", ARG_PLUGIN_LOAD}, { |
| "--gst-disable-segtrap", ARG_SEGTRAP_DISABLE}, { |
| "--gst-disable-registry-update", ARG_REGISTRY_UPDATE_DISABLE}, { |
| "--gst-disable-registry-fork", ARG_REGISTRY_FORK_DISABLE}, { |
| NULL} |
| }; |
| gint val = 0, n; |
| |
| for (n = 0; options[n].opt; n++) { |
| if (!strcmp (opt, options[n].opt)) { |
| val = options[n].val; |
| break; |
| } |
| } |
| |
| return parse_one_option (val, arg, err); |
| } |
| #endif |
| |
| /** |
| * gst_deinit: |
| * |
| * Clean up any resources created by GStreamer in gst_init(). |
| * |
| * It is normally not needed to call this function in a normal application |
| * as the resources will automatically be freed when the program terminates. |
| * This function is therefore mostly used by testsuites and other memory |
| * profiling tools. |
| * |
| * After this call GStreamer (including this method) should not be used anymore. |
| */ |
| void |
| gst_deinit (void) |
| { |
| GstBinClass *bin_class; |
| GstClock *clock; |
| |
| GST_INFO ("deinitializing GStreamer"); |
| |
| if (gst_deinitialized) { |
| GST_DEBUG ("already deinitialized"); |
| return; |
| } |
| |
| g_thread_pool_set_max_unused_threads (0); |
| bin_class = GST_BIN_CLASS (g_type_class_peek (gst_bin_get_type ())); |
| if (bin_class->pool != NULL) { |
| g_thread_pool_free (bin_class->pool, FALSE, TRUE); |
| bin_class->pool = NULL; |
| } |
| gst_task_cleanup_all (); |
| |
| g_slist_foreach (_priv_gst_preload_plugins, (GFunc) g_free, NULL); |
| g_slist_free (_priv_gst_preload_plugins); |
| _priv_gst_preload_plugins = NULL; |
| |
| #ifndef GST_DISABLE_REGISTRY |
| g_list_foreach (_priv_gst_plugin_paths, (GFunc) g_free, NULL); |
| g_list_free (_priv_gst_plugin_paths); |
| _priv_gst_plugin_paths = NULL; |
| #endif |
| |
| clock = gst_system_clock_obtain (); |
| gst_object_unref (clock); |
| gst_object_unref (clock); |
| |
| _priv_gst_registry_cleanup (); |
| |
| #ifndef GST_DISABLE_TRACE |
| _priv_gst_alloc_trace_deinit (); |
| #endif |
| |
| g_type_class_unref (g_type_class_peek (gst_object_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_pad_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_element_factory_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_element_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_type_find_factory_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_bin_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_bus_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_task_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_object_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_bin_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_buffer_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_buffer_copy_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_bus_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_bus_sync_reply_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_caps_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_clock_type_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_clock_return_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_clock_entry_type_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_clock_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_debug_graph_details_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_state_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_state_change_return_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_state_change_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_element_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_core_error_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_library_error_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_plugin_dependency_flags_get_type |
| ())); |
| g_type_class_unref (g_type_class_peek (gst_parse_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_resource_error_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_search_mode_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_stream_error_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_stream_status_type_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_structure_change_type_get_type |
| ())); |
| g_type_class_unref (g_type_class_peek (gst_event_type_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_event_type_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_seek_type_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_seek_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_qos_type_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_format_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_debug_level_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_debug_color_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_iterator_result_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_iterator_item_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_message_type_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_meta_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_mini_object_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_pad_link_return_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_pad_link_check_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_flow_return_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_pad_mode_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_pad_direction_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_pad_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_pad_presence_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_pad_template_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_pipeline_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_plugin_error_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_plugin_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_rank_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_query_type_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_query_type_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_buffering_mode_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_tag_merge_mode_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_tag_flag_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_tag_scope_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_task_state_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_toc_entry_type_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_toc_scope_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_type_find_probability_get_type |
| ())); |
| g_type_class_unref (g_type_class_peek (gst_uri_type_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_uri_error_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_parse_error_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_param_spec_fraction_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_progress_type_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_buffer_pool_acquire_flags_get_type |
| ())); |
| g_type_class_unref (g_type_class_peek (gst_memory_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_map_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_caps_intersect_mode_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_pad_probe_type_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_pad_probe_return_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_segment_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_scheduling_flags_get_type ())); |
| |
| g_type_class_unref (g_type_class_peek (gst_control_binding_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_control_source_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_toc_entry_type_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_toc_loop_type_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_lock_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_allocator_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_stream_flags_get_type ())); |
| g_type_class_unref (g_type_class_peek (gst_debug_color_mode_get_type ())); |
| |
| gst_deinitialized = TRUE; |
| GST_INFO ("deinitialized GStreamer"); |
| } |
| |
| /** |
| * gst_version: |
| * @major: (out): pointer to a guint to store the major version number |
| * @minor: (out): pointer to a guint to store the minor version number |
| * @micro: (out): pointer to a guint to store the micro version number |
| * @nano: (out): pointer to a guint to store the nano version number |
| * |
| * Gets the version number of the GStreamer library. |
| */ |
| void |
| gst_version (guint * major, guint * minor, guint * micro, guint * nano) |
| { |
| g_return_if_fail (major); |
| g_return_if_fail (minor); |
| g_return_if_fail (micro); |
| g_return_if_fail (nano); |
| |
| *major = GST_VERSION_MAJOR; |
| *minor = GST_VERSION_MINOR; |
| *micro = GST_VERSION_MICRO; |
| *nano = GST_VERSION_NANO; |
| } |
| |
| /** |
| * gst_version_string: |
| * |
| * This function returns a string that is useful for describing this version |
| * of GStreamer to the outside world: user agent strings, logging, ... |
| * |
| * Returns: (transfer full): a newly allocated string describing this version |
| * of GStreamer. |
| */ |
| |
| gchar * |
| gst_version_string (void) |
| { |
| guint major, minor, micro, nano; |
| |
| gst_version (&major, &minor, µ, &nano); |
| if (nano == 0) |
| return g_strdup_printf ("GStreamer %d.%d.%d", major, minor, micro); |
| else if (nano == 1) |
| return g_strdup_printf ("GStreamer %d.%d.%d (GIT)", major, minor, micro); |
| else |
| return g_strdup_printf ("GStreamer %d.%d.%d (prerelease)", major, minor, |
| micro); |
| } |
| |
| /** |
| * gst_segtrap_is_enabled: |
| * |
| * Some functions in the GStreamer core might install a custom SIGSEGV handler |
| * to better catch and report errors to the application. Currently this feature |
| * is enabled by default when loading plugins. |
| * |
| * Applications might want to disable this behaviour with the |
| * gst_segtrap_set_enabled() function. This is typically done if the application |
| * wants to install its own handler without GStreamer interfering. |
| * |
| * Returns: %TRUE if GStreamer is allowed to install a custom SIGSEGV handler. |
| */ |
| gboolean |
| gst_segtrap_is_enabled (void) |
| { |
| /* yeps, it's enabled when it's not disabled */ |
| return !_gst_disable_segtrap; |
| } |
| |
| /** |
| * gst_segtrap_set_enabled: |
| * @enabled: whether a custom SIGSEGV handler should be installed. |
| * |
| * Applications might want to disable/enable the SIGSEGV handling of |
| * the GStreamer core. See gst_segtrap_is_enabled() for more information. |
| */ |
| void |
| gst_segtrap_set_enabled (gboolean enabled) |
| { |
| _gst_disable_segtrap = !enabled; |
| } |