gstreamer/gst/gst.c
Stefan Kost 60f5fbb210 eliminate another tmpl file, fix spelling in the long-description
Original commit message from CVS:
* docs/gst/tmpl/gst.sgml:
* gst/gst.c:
eliminate another tmpl file, fix spelling in the long-description
2005-08-19 09:58:42 +00:00

913 lines
26 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.
* @see_also: Check out both <ulink url="http://www.cse.ogi.edu/sysl/">OGI's
* pipeline</ulink> and Microsoft's DirectShow for some background.
*
* 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 borrows heavily from both the <ulink
* url="http://www.cse.ogi.edu/sysl/">OGI media pipeline</ulink> and
* Microsoft's DirectShow, hopefully taking the best of both and leaving the
* cruft behind. Its interface is still very fluid and thus can be changed
* to increase the sanity/noise ratio.
*
* 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>
* int
* main (int argc, char *argv[])
* {
* // initialize the GStreamer library
* gst_init (&amp;argc, &amp;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 a popt table 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[])
* {
* struct poptOption options[] = {
* { "stats", 's', POPT_ARG_NONE|POPT_ARGFLAG_STRIP, &amp;stats, 0,
* "Show pad stats", NULL},
* POPT_TABLEEND
* };
*
* // initialize the GStreamer library
* gst_init_with_popt_table (&amp;argc, &amp;argv, options);
*
* ...
* }
* </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.
*
* The functions gst_main() and gst_main_quit() enter and exit the main loop.
* GStreamer doesn't currently require you to use a mainloop but can intergrate
* with it without problems.
*/
#include <stdlib.h>
#include <stdio.h>
#include "gst_private.h"
#include "gst-i18n-lib.h"
#include <locale.h> /* for LC_ALL */
#include "gst.h"
#include "gstqueue.h"
#ifndef GST_DISABLE_REGISTRY
#include "registries/gstxmlregistry.h"
#endif /* GST_DISABLE_REGISTRY */
#include "gstregistrypool.h"
#define GST_CAT_DEFAULT GST_CAT_GST_INIT
#define MAX_PATH_SPLIT 16
#define GST_PLUGIN_SEPARATOR ","
#ifndef GST_DISABLE_REGISTRY
gboolean _gst_registry_auto_load = TRUE;
static GstRegistry *_global_registry;
static GstRegistry *_user_registry;
static gboolean _gst_registry_fixed = FALSE;
#endif
static gboolean gst_initialized = FALSE;
/* this will be set in popt callbacks when a problem has been encountered */
static gboolean _gst_initialization_failure = FALSE;
extern gint _gst_trace_on;
/* set to TRUE when segfaults need to be left as is */
gboolean _gst_disable_segtrap = FALSE;
static void load_plugin_func (gpointer data, gpointer user_data);
static void init_popt_callback (poptContext context,
enum poptCallbackReason reason,
const GstPoptOption * option, const char *arg, void *data);
static gboolean init_pre (void);
static gboolean init_post (void);
static GSList *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_DISABLE_CPU_OPT,
ARG_PLUGIN_SPEW,
ARG_PLUGIN_PATH,
ARG_PLUGIN_LOAD,
ARG_SEGTRAP_DISABLE,
ARG_REGISTRY
};
static void
parse_debug_list (const gchar * list)
{
gchar **split;
gchar **walk;
g_return_if_fail (list != NULL);
walk = split = g_strsplit (list, ",", 0);
while (walk[0]) {
gchar **values = g_strsplit (walk[0], ":", 2);
if (values[0] && values[1]) {
gint level = 0;
g_strstrip (values[0]);
g_strstrip (values[1]);
level = strtol (values[1], NULL, 0);
if (level >= 0 && level < GST_LEVEL_COUNT) {
GST_DEBUG ("setting debugging to level %d for name \"%s\"",
level, values[0]);
gst_debug_set_threshold_for_name (values[0], level);
}
}
g_strfreev (values);
walk++;
}
g_strfreev (split);
}
#ifndef NUL
#define NUL '\0'
#endif
/**
* gst_init_get_popt_table:
*
* Returns a popt option table with GStreamer's argument specifications. The
* table is set up to use popt's callback method, so whenever the parsing is
* actually performed (via poptGetContext), the GStreamer libraries will
* be initialized.
*
* This function is useful if you want to integrate GStreamer with other
* libraries that use popt.
*
* Returns: a pointer to the static GStreamer option table.
* No free is necessary.
*/
const GstPoptOption *
gst_init_get_popt_table (void)
{
static GstPoptOption gstreamer_options[] = {
{NULL, NUL, POPT_ARG_CALLBACK | POPT_CBFLAG_PRE | POPT_CBFLAG_POST,
(void *) &init_popt_callback, 0, NULL, NULL},
/* make sure we use our GETTEXT_PACKAGE as the domain for popt translations */
{NULL, NUL, POPT_ARG_INTL_DOMAIN, GETTEXT_PACKAGE, 0, NULL, NULL},
{"gst-version", NUL, POPT_ARG_NONE | POPT_ARGFLAG_STRIP, NULL, ARG_VERSION,
N_("Print the GStreamer version"), NULL},
{"gst-fatal-warnings", NUL, POPT_ARG_NONE | POPT_ARGFLAG_STRIP, NULL,
ARG_FATAL_WARNINGS, N_("Make all warnings fatal"), NULL},
#ifndef GST_DISABLE_GST_DEBUG
{"gst-debug-help", NUL, POPT_ARG_NONE | POPT_ARGFLAG_STRIP, NULL,
ARG_DEBUG_HELP, N_("Print available debug categories and exit"), NULL},
{"gst-debug-level", NUL, POPT_ARG_INT | POPT_ARGFLAG_STRIP, NULL,
ARG_DEBUG_LEVEL,
N_("Default debug level from 1 (only error) to 5 (anything) or "
"0 for no output"),
N_("LEVEL")},
{"gst-debug", NUL, POPT_ARG_STRING | POPT_ARGFLAG_STRIP, NULL, ARG_DEBUG,
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", NUL, POPT_ARG_NONE | POPT_ARGFLAG_STRIP, NULL,
ARG_DEBUG_NO_COLOR, N_("Disable colored debugging output"), NULL},
{"gst-debug-disable", NUL, POPT_ARG_NONE | POPT_ARGFLAG_STRIP, NULL,
ARG_DEBUG_DISABLE, N_("Disable debugging")},
#endif
{"gst-plugin-spew", NUL, POPT_ARG_NONE | POPT_ARGFLAG_STRIP, NULL,
ARG_PLUGIN_SPEW, N_("Enable verbose plugin loading diagnostics"), NULL},
{"gst-plugin-path", NUL, POPT_ARG_STRING | POPT_ARGFLAG_STRIP, NULL,
ARG_PLUGIN_PATH, NULL, N_("PATHS")},
{"gst-plugin-load", NUL, POPT_ARG_STRING | POPT_ARGFLAG_STRIP, NULL,
ARG_PLUGIN_LOAD,
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", NUL, POPT_ARG_NONE | POPT_ARGFLAG_STRIP, NULL,
ARG_SEGTRAP_DISABLE,
N_("Disable trapping of segmentation faults during plugin loading"),
NULL},
{"gst-registry", NUL, POPT_ARG_STRING | POPT_ARGFLAG_STRIP, NULL,
ARG_REGISTRY, N_("Registry to use"), N_("REGISTRY")},
POPT_TABLEEND
};
static gboolean inited = FALSE;
if (!inited) {
int i;
for (i = 0; i < G_N_ELEMENTS (gstreamer_options); i++) {
if (gstreamer_options[i].longName == NULL) {
} else if (strcmp (gstreamer_options[i].longName, "gst-plugin-path") == 0) {
gstreamer_options[i].descrip =
g_strdup_printf (_
("path list for loading plugins (separated by '%s')"),
G_SEARCHPATH_SEPARATOR_S);
}
}
inited = TRUE;
}
return gstreamer_options;
}
/**
* gst_init_check:
* @argc: pointer to application's argc
* @argv: pointer to application's argv
*
* 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[])
{
return gst_init_check_with_popt_table (argc, argv, NULL);
}
/**
* gst_init:
* @argc: pointer to application's argc
* @argv: pointer to application's argv
*
* Initializes the GStreamer library, setting up internal path lists,
* registering built-in elements, and loading standard plugins.
*
* 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.
*
* 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[])
{
gst_init_with_popt_table (argc, argv, NULL);
}
/**
* gst_init_with_popt_table:
* @argc: pointer to application's argc
* @argv: pointer to application's argv
* @popt_options: pointer to a popt table to append
*
* Initializes the GStreamer library, parsing the options,
* setting up internal path lists,
* registering built-in elements, and loading standard plugins.
*
* 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_with_popt_table() instead.
*/
void
gst_init_with_popt_table (int *argc, char **argv[],
const GstPoptOption * popt_options)
{
if (!gst_init_check_with_popt_table (argc, argv, popt_options)) {
g_print ("Could not initialize GStreamer !\n");
exit (1);
}
}
/**
* gst_init_check_with_popt_table:
* @argc: pointer to application's argc
* @argv: pointer to application's argv
* @popt_options: pointer to a popt table to append
*
* Initializes the GStreamer library, parsing the options,
* setting up internal path lists,
* registering built-in elements, and loading standard plugins.
*
* Returns: %TRUE if GStreamer could be initialized.
*/
gboolean
gst_init_check_with_popt_table (int *argc, char **argv[],
const GstPoptOption * popt_options)
{
poptContext context;
gint nextopt;
GstPoptOption *options;
const gchar *gst_debug_env = NULL;
GstPoptOption options_with[] = {
{NULL, NUL, POPT_ARG_INCLUDE_TABLE, poptHelpOptions, 0, "Help options:",
NULL},
{NULL, NUL, POPT_ARG_INCLUDE_TABLE,
(GstPoptOption *) gst_init_get_popt_table (), 0,
"GStreamer options:", NULL},
{NULL, NUL, POPT_ARG_INCLUDE_TABLE, (GstPoptOption *) popt_options, 0,
"Application options:", NULL},
POPT_TABLEEND
};
GstPoptOption options_without[] = {
{NULL, NUL, POPT_ARG_INCLUDE_TABLE, poptHelpOptions, 0, "Help options:",
NULL},
{NULL, NUL, POPT_ARG_INCLUDE_TABLE,
(GstPoptOption *) gst_init_get_popt_table (), 0,
"GStreamer options:", NULL},
POPT_TABLEEND
};
if (gst_initialized) {
GST_DEBUG ("already initialized gst");
return TRUE;
}
if (!argc || !argv) {
if (argc || argv)
g_warning ("gst_init: Only one of argc or argv was NULL");
if (!init_pre ())
return FALSE;
if (!init_post ())
return FALSE;
gst_initialized = TRUE;
return TRUE;
}
if (popt_options == NULL) {
options = options_without;
} else {
options = options_with;
}
context = poptGetContext ("GStreamer", *argc, (const char **) *argv,
options, 0);
/* check for GST_DEBUG_NO_COLOR environment variable */
if (g_getenv ("GST_DEBUG_NO_COLOR") != NULL)
gst_debug_set_colored (FALSE);
/* check for GST_DEBUG environment variable */
gst_debug_env = g_getenv ("GST_DEBUG");
if (gst_debug_env)
parse_debug_list (gst_debug_env);
/* Scan until we reach the end (-1), ignoring errors */
while ((nextopt = poptGetNextOpt (context)) != -1) {
/* If an error occurred and it's not an missing options, throw an error
* We don't want to show the "unknown option" message, since it'll
* might interfere with the applications own command line parsing
*/
if (nextopt < 0 && nextopt != POPT_ERROR_BADOPT) {
g_print ("Error on option %s: %s.\nRun '%s --help' "
"to see a full list of available command line options.\n",
poptBadOption (context, 0), poptStrerror (nextopt), (*argv)[0]);
poptFreeContext (context);
return FALSE;
}
}
*argc = poptStrippedArgv (context, *argc, *argv);
poptFreeContext (context);
return TRUE;
}
#ifndef GST_DISABLE_REGISTRY
static void
add_path_func (gpointer data, gpointer user_data)
{
GstRegistry *registry = GST_REGISTRY (user_data);
gst_registry_add_path (registry, (gchar *) data);
}
#endif
static void
prepare_for_load_plugin_func (gpointer data, gpointer user_data)
{
preload_plugins = g_slist_prepend (preload_plugins, data);
}
static void
load_plugin_func (gpointer data, gpointer user_data)
{
GstPlugin *plugin;
const gchar *filename;
GError *err = NULL;
filename = (const gchar *) data;
plugin = gst_plugin_load_file (filename, &err);
if (plugin) {
GST_INFO ("Loaded plugin: \"%s\"", filename);
gst_registry_pool_add_plugin (plugin);
} else {
if (err) {
/* Report error to user, and free error */
GST_ERROR ("Failed to load plugin: %s\n", err->message);
g_error_free (err);
} else {
GST_WARNING ("Failed to load plugin: \"%s\"", filename);
}
}
g_free (data);
}
static void
split_and_iterate (const gchar * stringlist, 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]);
g_strfreev (strings);
j = 0;
break;
}
}
g_strfreev (strings);
}
}
/* we have no fail cases yet, but maybe in the future */
static gboolean
init_pre (void)
{
g_type_init ();
if (g_thread_supported ()) {
/* somebody already initialized threading */
} else {
g_thread_init (NULL);
}
/* we need threading to be enabled right here */
_gst_debug_init ();
#ifdef ENABLE_NLS
setlocale (LC_ALL, "");
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
#endif /* ENABLE_NLS */
#ifndef GST_DISABLE_REGISTRY
{
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);
}
}
#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 from %s", LIBDIR);
#ifndef GST_DISABLE_REGISTRY
{
gchar *user_reg;
const gchar *homedir;
_global_registry =
gst_xml_registry_new ("global_registry", GLOBAL_REGISTRY_FILE);
#ifdef PLUGINS_USE_BUILDDIR
/* location libgstelements.so */
gst_registry_add_path (_global_registry, PLUGINS_BUILDDIR "/libs/gst");
gst_registry_add_path (_global_registry, PLUGINS_BUILDDIR "/gst/elements");
gst_registry_add_path (_global_registry, PLUGINS_BUILDDIR "/gst/types");
gst_registry_add_path (_global_registry, PLUGINS_BUILDDIR "/gst/autoplug");
gst_registry_add_path (_global_registry, PLUGINS_BUILDDIR "/gst/indexers");
#else
/* add the main (installed) library path if GST_PLUGIN_PATH_ONLY not set */
if (g_getenv ("GST_PLUGIN_PATH_ONLY") == NULL) {
gst_registry_add_path (_global_registry, PLUGINS_DIR);
}
#endif /* PLUGINS_USE_BUILDDIR */
if (g_getenv ("GST_REGISTRY")) {
user_reg = g_strdup (g_getenv ("GST_REGISTRY"));
} else {
homedir = g_get_home_dir ();
user_reg = g_strjoin ("/", homedir, LOCAL_REGISTRY_FILE, NULL);
}
_user_registry = gst_xml_registry_new ("user_registry", user_reg);
g_free (user_reg);
}
#endif /* GST_DISABLE_REGISTRY */
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) ||
!gst_element_register (plugin, "queue", GST_RANK_NONE, GST_TYPE_QUEUE)
)
g_assert_not_reached ();
return TRUE;
}
static GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"gstcoreelements",
"core elements of the GStreamer library",
gst_register_core_elements,
NULL,
VERSION,
GST_LICENSE,
GST_PACKAGE,
GST_ORIGIN,
GST_PADDING_INIT
};
/*
* 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 (void)
{
GLogLevelFlags llf;
const gchar *plugin_path;
#ifndef GST_DISABLE_TRACE
GstTrace *gst_trace;
#endif /* GST_DISABLE_TRACE */
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);
_gst_format_initialize ();
_gst_query_initialize ();
gst_object_get_type ();
gst_pad_get_type ();
gst_element_factory_get_type ();
gst_element_get_type ();
gst_type_find_factory_get_type ();
gst_bin_get_type ();
#ifndef GST_DISABLE_INDEX
gst_index_factory_get_type ();
#endif /* GST_DISABLE_INDEX */
#ifndef GST_DISABLE_URI
gst_uri_handler_get_type ();
#endif /* GST_DISABLE_URI */
plugin_path = g_getenv ("GST_PLUGIN_PATH");
#ifndef GST_DISABLE_REGISTRY
split_and_iterate (plugin_path, G_SEARCHPATH_SEPARATOR_S, add_path_func,
_global_registry);
#endif /* GST_DISABLE_REGISTRY */
/* register core plugins */
_gst_plugin_register_static (&plugin_desc);
gst_structure_get_type ();
_gst_value_initialize ();
gst_caps_get_type ();
_gst_plugin_initialize ();
_gst_event_initialize ();
_gst_buffer_initialize ();
_gst_message_initialize ();
_gst_tag_initialize ();
#ifndef GST_DISABLE_REGISTRY
if (!_gst_registry_fixed) {
/* don't override command-line options */
if (g_getenv ("GST_REGISTRY")) {
g_object_set (_global_registry, "location", g_getenv ("GST_REGISTRY"),
NULL);
_gst_registry_fixed = TRUE;
}
}
if (!_gst_registry_fixed) {
gst_registry_pool_add (_global_registry, 100);
gst_registry_pool_add (_user_registry, 50);
} else {
gst_registry_pool_add (_global_registry, 100);
}
if (_gst_registry_auto_load) {
gst_registry_pool_load_all ();
}
#endif /* GST_DISABLE_REGISTRY */
/* if we need to preload plugins */
if (preload_plugins) {
g_slist_foreach (preload_plugins, load_plugin_func, NULL);
g_slist_free (preload_plugins);
preload_plugins = NULL;
}
#ifndef GST_DISABLE_TRACE
_gst_trace_on = 0;
if (_gst_trace_on) {
gst_trace = gst_trace_new ("gst.trace", 1024);
gst_trace_set_default (gst_trace);
}
#endif /* GST_DISABLE_TRACE */
return TRUE;
}
#ifndef GST_DISABLE_GST_DEBUG
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, *walk2;
if (!init_post ())
exit (1);
walk2 = list2 = gst_registry_pool_plugin_list ();
while (walk2) {
GstPlugin *plugin = GST_PLUGIN (walk2->data);
walk2 = g_list_next (walk2);
if (!gst_plugin_is_loaded (plugin)) {
#ifndef GST_DISABLE_REGISTRY
if (GST_IS_REGISTRY (plugin->manager)) {
GST_CAT_LOG (GST_CAT_PLUGIN_LOADING, "loading plugin %s",
plugin->desc.name);
if (gst_registry_load_plugin (GST_REGISTRY (plugin->manager),
plugin) != GST_REGISTRY_OK)
GST_CAT_WARNING (GST_CAT_PLUGIN_LOADING, "loading plugin %s failed",
plugin->desc.name);
}
#endif /* GST_DISABLE_REGISTRY */
}
}
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 ()) {
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 {
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
static void
init_popt_callback (poptContext context, enum poptCallbackReason reason,
const GstPoptOption * option, const char *arg, void *data)
{
GLogLevelFlags fatal_mask;
if (gst_initialized)
return;
switch (reason) {
case POPT_CALLBACK_REASON_PRE:
if (!init_pre ())
_gst_initialization_failure = TRUE;
break;
case POPT_CALLBACK_REASON_OPTION:
switch (option->val) {
case ARG_VERSION:
g_print ("GStreamer Core Library version %s\n", GST_VERSION);
exit (0);
case ARG_FATAL_WARNINGS:
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:{
gint tmp = 0;
tmp = strtol (arg, NULL, 0);
if (tmp >= 0 && 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,
_user_registry);
#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:
#ifndef GST_DISABLE_REGISTRY
g_object_set (G_OBJECT (_user_registry), "location", arg, NULL);
_gst_registry_fixed = TRUE;
#endif /* GST_DISABLE_REGISTRY */
break;
default:
g_warning ("option %d not recognized", option->val);
break;
}
break;
case POPT_CALLBACK_REASON_POST:
if (!init_post ())
_gst_initialization_failure = TRUE;
gst_initialized = TRUE;
break;
}
}
/**
* gst_deinit:
*
* Clean up.
* Call only once, before exiting.
* After this call GStreamer should not be used anymore.
*/
void
gst_deinit (void)
{
GstClock *clock;
clock = gst_system_clock_obtain ();
gst_object_unref (clock);
gst_object_unref (clock);
gst_initialized = FALSE;
}
/**
* gst_version:
* @major: pointer to a guint to store the major version number
* @minor: pointer to a guint to store the minor version number
* @micro: pointer to a guint to store the micro version number
*
* Gets the version number of the GStreamer library.
*/
void
gst_version (guint * major, guint * minor, guint * micro)
{
g_return_if_fail (major);
g_return_if_fail (minor);
g_return_if_fail (micro);
*major = GST_VERSION_MAJOR;
*minor = GST_VERSION_MINOR;
*micro = GST_VERSION_MICRO;
}