mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-30 13:41:48 +00:00
1200 lines
40 KiB
C
1200 lines
40 KiB
C
/* 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., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, 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 discreet
|
|
* (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}
|
|
* };
|
|
* // must initialise the threading system before using any other GLib funtion
|
|
* if (!g_thread_supported ())
|
|
* g_thread_init (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.
|
|
*
|
|
* Last reviewed on 2006-08-11 (0.10.10)
|
|
*/
|
|
|
|
#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_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]
|
|
*/
|
|
|
|
#ifndef NUL
|
|
#define NUL '\0'
|
|
#endif
|
|
|
|
#ifndef GST_DISABLE_GST_DEBUG
|
|
static gboolean
|
|
parse_debug_category (gchar * str, const gchar ** category)
|
|
{
|
|
if (!str)
|
|
return FALSE;
|
|
|
|
/* works in place */
|
|
g_strstrip (str);
|
|
|
|
if (str[0] != NUL) {
|
|
*category = str;
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
parse_debug_level (gchar * str, GstDebugLevel * level)
|
|
{
|
|
if (!str)
|
|
return FALSE;
|
|
|
|
/* works in place */
|
|
g_strstrip (str);
|
|
|
|
if (str[0] != NUL && str[1] == NUL
|
|
&& str[0] >= '0' && str[0] < '0' + GST_LEVEL_COUNT) {
|
|
*level = (GstDebugLevel) (str[0] - '0');
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
parse_debug_list (const gchar * list)
|
|
{
|
|
gchar **split;
|
|
gchar **walk;
|
|
|
|
g_assert (list);
|
|
|
|
split = g_strsplit (list, ",", 0);
|
|
|
|
for (walk = split; *walk; walk++) {
|
|
if (strchr (*walk, ':')) {
|
|
gchar **values = g_strsplit (*walk, ":", 2);
|
|
|
|
if (values[0] && values[1]) {
|
|
GstDebugLevel level;
|
|
const gchar *category;
|
|
|
|
if (parse_debug_category (values[0], &category)
|
|
&& parse_debug_level (values[1], &level))
|
|
gst_debug_set_threshold_for_name (category, level);
|
|
}
|
|
|
|
g_strfreev (values);
|
|
} else {
|
|
GstDebugLevel level;
|
|
|
|
if (parse_debug_level (*walk, &level))
|
|
gst_debug_set_default_threshold (level);
|
|
}
|
|
}
|
|
|
|
g_strfreev (split);
|
|
}
|
|
#endif
|
|
|
|
#ifdef G_OS_WIN32
|
|
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 5 (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-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.
|
|
*
|
|
* This function should be called before calling any other GLib functions. If
|
|
* this is not an option, your program must initialise the GLib thread system
|
|
* using g_thread_init() before any other GLib functions are called.
|
|
*
|
|
* Returns: %TRUE if GStreamer could be initialized.
|
|
*/
|
|
gboolean
|
|
gst_init_check (int *argc, char **argv[], GError ** err)
|
|
{
|
|
#ifndef GST_DISABLE_OPTION_PARSING
|
|
GOptionGroup *group;
|
|
GOptionContext *ctx;
|
|
#endif
|
|
gboolean res;
|
|
|
|
if (gst_initialized) {
|
|
GST_DEBUG ("already initialized gst");
|
|
return TRUE;
|
|
}
|
|
#ifndef GST_DISABLE_OPTION_PARSING
|
|
ctx = g_option_context_new ("- GStreamer initialization");
|
|
g_option_context_set_ignore_unknown_options (ctx, TRUE);
|
|
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;
|
|
|
|
if (res) {
|
|
GST_INFO ("initialized GStreamer successfully");
|
|
} else {
|
|
GST_INFO ("failed to initialize GStreamer");
|
|
}
|
|
|
|
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.
|
|
*
|
|
* This function should be called before calling any other GLib functions. If
|
|
* this is not an option, your program must initialise the GLib thread system
|
|
* using g_thread_init() before any other GLib functions are called.
|
|
*
|
|
* <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)
|
|
{
|
|
if (gst_initialized) {
|
|
GST_DEBUG ("already initialized");
|
|
return TRUE;
|
|
}
|
|
|
|
g_type_init ();
|
|
|
|
#ifndef GST_DISABLE_GST_DEBUG
|
|
_priv_gst_debug_init ();
|
|
#endif
|
|
|
|
#ifdef ENABLE_NLS
|
|
setlocale (LC_ALL, "");
|
|
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
|
|
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
|
|
#endif /* ENABLE_NLS */
|
|
|
|
#ifndef GST_DISABLE_GST_DEBUG
|
|
{
|
|
const gchar *debug_list;
|
|
|
|
if (g_getenv ("GST_DEBUG_NO_COLOR") != NULL)
|
|
gst_debug_set_colored (FALSE);
|
|
|
|
debug_list = g_getenv ("GST_DEBUG");
|
|
if (debug_list) {
|
|
parse_debug_list (debug_list);
|
|
}
|
|
}
|
|
|
|
priv_gst_dump_dot_dir = g_getenv ("GST_DEBUG_DUMP_DOT_DIR");
|
|
#endif
|
|
/* This is the earliest we can make stuff show up in the logs.
|
|
* So give some useful info about GStreamer here */
|
|
GST_INFO ("Initializing GStreamer Core Library version %s", VERSION);
|
|
GST_INFO ("Using library installed in %s", 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_memory_initialize ();
|
|
_priv_gst_format_initialize ();
|
|
_priv_gst_query_initialize ();
|
|
_priv_gst_structure_initialize ();
|
|
_priv_gst_caps_initialize ();
|
|
_priv_gst_meta_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 ());
|
|
|
|
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_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 ());
|
|
|
|
_priv_gst_event_initialize ();
|
|
_priv_gst_buffer_initialize ();
|
|
_priv_gst_message_initialize ();
|
|
_priv_gst_buffer_list_initialize ();
|
|
_priv_gst_sample_initialize ();
|
|
_priv_gst_value_initialize ();
|
|
|
|
g_type_class_ref (gst_param_spec_fraction_get_type ());
|
|
_priv_gst_tag_initialize ();
|
|
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);
|
|
|
|
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) {
|
|
GstDebugCategory *cat = (GstDebugCategory *) walk->data;
|
|
|
|
if (gst_debug_is_colored ()) {
|
|
#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");
|
|
#else /* G_OS_WIN32 */
|
|
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);
|
|
#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:
|
|
parse_debug_list (arg);
|
|
break;
|
|
case ARG_DEBUG_NO_COLOR:
|
|
gst_debug_set_colored (FALSE);
|
|
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-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)
|
|
{
|
|
GstClock *clock;
|
|
|
|
GST_INFO ("deinitializing GStreamer");
|
|
|
|
if (gst_deinitialized) {
|
|
GST_DEBUG ("already deinitialized");
|
|
return;
|
|
}
|
|
|
|
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_lock_flags_get_type ()));
|
|
g_type_class_unref (g_type_class_peek (gst_allocator_flags_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;
|
|
}
|