gstreamer/gst/gst_private.h

442 lines
14 KiB
C
Raw Normal View History

/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gst_private.h: Private header for within libgst
*
* 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.
*/
#ifndef __GST_PRIVATE_H__
#define __GST_PRIVATE_H__
#ifdef HAVE_CONFIG_H
# ifndef GST_LICENSE /* don't include config.h twice, it has no guards */
# include "config.h"
# endif
#endif
/* This needs to be before glib.h, since it might be used in inline
* functions */
extern const char g_log_domain_gstreamer[];
#include <glib.h>
#include <stdlib.h>
#include <string.h>
/* Needed for GstRegistry * */
#include "gstregistry.h"
#include "gststructure.h"
/* we need this in pretty much all files */
#include "gstinfo.h"
Add API for making a GStreamer plugin 'dependent' on external files, directories or environment variables, so that GS... Original commit message from CVS: * docs/gst/gstreamer-sections.txt:: * gst/gst_private.h: (GstPluginDep), (_GstPluginPrivate): * gst/gstplugin.c: (gst_plugin_init), (gst_plugin_finalize), (gst_plugin_class_init), (gst_plugin_list_free), (gst_plugin_ext_dep_get_env_vars_hash), (_priv_plugin_deps_env_vars_changed), (gst_plugin_ext_dep_extract_env_vars_paths), (gst_plugin_ext_dep_get_hash_from_stat_entry), (gst_plugin_ext_dep_direntry_matches), (gst_plugin_ext_dep_scan_dir_and_match_names), (gst_plugin_ext_dep_scan_path_with_filenames), (gst_plugin_ext_dep_get_stat_hash), (_priv_plugin_deps_files_changed), (gst_plugin_ext_dep_free), (gst_plugin_ext_dep_strv_equal), (gst_plugin_ext_dep_equals), (gst_plugin_add_dependency), (gst_plugin_add_dependency_simple): * gst/gstplugin.h: (GstPluginPrivate), (GstPluginFlags), (GST_PLUGIN_DEPENDENCY_FLAG_NONE), (GST_PLUGIN_DEPENDENCY_FLAG_RECURSE), (GST_PLUGIN_DEPENDENCY_FLAG_PATHS_ARE_DEFAULT_ONLY), (GST_PLUGIN_DEPENDENCY_FLAG_FILE_NAME_IS_SUFFIX), (GstPluginDependencyFlags), (GstPluginFilter): * gst/gstregistry.c: (gst_registry_scan_path_level): * gst/gstregistrybinary.c: (gst_registry_binary_save_feature), (gst_registry_binary_save_plugin_dep), (gst_registry_binary_save_plugin), (gst_registry_binary_load_feature), (gst_registry_binary_load_plugin_dep_strv), (gst_registry_binary_load_plugin_dep), (gst_registry_binary_load_plugin): * gst/gstregistrybinary.h: (GST_MAGIC_BINARY_VERSION_STR), (GstBinaryPluginElement), (_GstBinaryDep), (GstBinaryDep): * gst/gstregistryxml.c: (gst_registry_xml_save_plugin): Add API for making a GStreamer plugin 'dependent' on external files, directories or environment variables, so that GStreamer knows when it needs to re-load GStreamer plugins that wrap other plugin systems. Fixes bug #350477. API: add gst_plugin_add_dependency() API: add gst_plugin_add_dependency_simple()
2009-01-06 17:58:59 +00:00
/* for the flags in the GstPluginDep structure below */
#include "gstplugin.h"
/* for the pad cache */
#include "gstpad.h"
/* for GstElement */
#include "gstelement.h"
/* for GstDeviceProvider */
#include "gstdeviceprovider.h"
/* for GstToc */
#include "gsttoc.h"
#include "gstdatetime.h"
G_BEGIN_DECLS
/* used by gstparse.c and grammar.y */
struct _GstParseContext {
GList * missing_elements;
};
Add API for making a GStreamer plugin 'dependent' on external files, directories or environment variables, so that GS... Original commit message from CVS: * docs/gst/gstreamer-sections.txt:: * gst/gst_private.h: (GstPluginDep), (_GstPluginPrivate): * gst/gstplugin.c: (gst_plugin_init), (gst_plugin_finalize), (gst_plugin_class_init), (gst_plugin_list_free), (gst_plugin_ext_dep_get_env_vars_hash), (_priv_plugin_deps_env_vars_changed), (gst_plugin_ext_dep_extract_env_vars_paths), (gst_plugin_ext_dep_get_hash_from_stat_entry), (gst_plugin_ext_dep_direntry_matches), (gst_plugin_ext_dep_scan_dir_and_match_names), (gst_plugin_ext_dep_scan_path_with_filenames), (gst_plugin_ext_dep_get_stat_hash), (_priv_plugin_deps_files_changed), (gst_plugin_ext_dep_free), (gst_plugin_ext_dep_strv_equal), (gst_plugin_ext_dep_equals), (gst_plugin_add_dependency), (gst_plugin_add_dependency_simple): * gst/gstplugin.h: (GstPluginPrivate), (GstPluginFlags), (GST_PLUGIN_DEPENDENCY_FLAG_NONE), (GST_PLUGIN_DEPENDENCY_FLAG_RECURSE), (GST_PLUGIN_DEPENDENCY_FLAG_PATHS_ARE_DEFAULT_ONLY), (GST_PLUGIN_DEPENDENCY_FLAG_FILE_NAME_IS_SUFFIX), (GstPluginDependencyFlags), (GstPluginFilter): * gst/gstregistry.c: (gst_registry_scan_path_level): * gst/gstregistrybinary.c: (gst_registry_binary_save_feature), (gst_registry_binary_save_plugin_dep), (gst_registry_binary_save_plugin), (gst_registry_binary_load_feature), (gst_registry_binary_load_plugin_dep_strv), (gst_registry_binary_load_plugin_dep), (gst_registry_binary_load_plugin): * gst/gstregistrybinary.h: (GST_MAGIC_BINARY_VERSION_STR), (GstBinaryPluginElement), (_GstBinaryDep), (GstBinaryDep): * gst/gstregistryxml.c: (gst_registry_xml_save_plugin): Add API for making a GStreamer plugin 'dependent' on external files, directories or environment variables, so that GStreamer knows when it needs to re-load GStreamer plugins that wrap other plugin systems. Fixes bug #350477. API: add gst_plugin_add_dependency() API: add gst_plugin_add_dependency_simple()
2009-01-06 17:58:59 +00:00
/* used by gstplugin.c and gstregistrybinary.c */
typedef struct {
/* details registered via gst_plugin_add_dependency() */
GstPluginDependencyFlags flags;
gchar **env_vars;
gchar **paths;
gchar **names;
/* information saved from the last time the plugin was loaded (-1 = unset) */
guint env_hash; /* hash of content of environment variables in env_vars */
guint stat_hash; /* hash of stat() on all relevant files and directories */
} GstPluginDep;
struct _GstPluginPrivate {
GList *deps; /* list of GstPluginDep structures */
GstStructure *cache_data;
Add API for making a GStreamer plugin 'dependent' on external files, directories or environment variables, so that GS... Original commit message from CVS: * docs/gst/gstreamer-sections.txt:: * gst/gst_private.h: (GstPluginDep), (_GstPluginPrivate): * gst/gstplugin.c: (gst_plugin_init), (gst_plugin_finalize), (gst_plugin_class_init), (gst_plugin_list_free), (gst_plugin_ext_dep_get_env_vars_hash), (_priv_plugin_deps_env_vars_changed), (gst_plugin_ext_dep_extract_env_vars_paths), (gst_plugin_ext_dep_get_hash_from_stat_entry), (gst_plugin_ext_dep_direntry_matches), (gst_plugin_ext_dep_scan_dir_and_match_names), (gst_plugin_ext_dep_scan_path_with_filenames), (gst_plugin_ext_dep_get_stat_hash), (_priv_plugin_deps_files_changed), (gst_plugin_ext_dep_free), (gst_plugin_ext_dep_strv_equal), (gst_plugin_ext_dep_equals), (gst_plugin_add_dependency), (gst_plugin_add_dependency_simple): * gst/gstplugin.h: (GstPluginPrivate), (GstPluginFlags), (GST_PLUGIN_DEPENDENCY_FLAG_NONE), (GST_PLUGIN_DEPENDENCY_FLAG_RECURSE), (GST_PLUGIN_DEPENDENCY_FLAG_PATHS_ARE_DEFAULT_ONLY), (GST_PLUGIN_DEPENDENCY_FLAG_FILE_NAME_IS_SUFFIX), (GstPluginDependencyFlags), (GstPluginFilter): * gst/gstregistry.c: (gst_registry_scan_path_level): * gst/gstregistrybinary.c: (gst_registry_binary_save_feature), (gst_registry_binary_save_plugin_dep), (gst_registry_binary_save_plugin), (gst_registry_binary_load_feature), (gst_registry_binary_load_plugin_dep_strv), (gst_registry_binary_load_plugin_dep), (gst_registry_binary_load_plugin): * gst/gstregistrybinary.h: (GST_MAGIC_BINARY_VERSION_STR), (GstBinaryPluginElement), (_GstBinaryDep), (GstBinaryDep): * gst/gstregistryxml.c: (gst_registry_xml_save_plugin): Add API for making a GStreamer plugin 'dependent' on external files, directories or environment variables, so that GStreamer knows when it needs to re-load GStreamer plugins that wrap other plugin systems. Fixes bug #350477. API: add gst_plugin_add_dependency() API: add gst_plugin_add_dependency_simple()
2009-01-06 17:58:59 +00:00
};
/* FIXME: could rename all priv_gst_* functions to __gst_* now */
G_GNUC_INTERNAL gboolean priv_gst_plugin_loading_have_whitelist (void);
pluginloading: add support for whitelisting based on plugin or source module name and path This feature is primarily intended for use in plugin modules' unit tests. Consider the following situation: gst-plugins-good is built against an installed GStreamer core. An older version of gst-plugins-good is also installed in that prefix, along with random other plugin modules. Now, when doing 'make check' in the just-built gst-plugins-good tree, we want to only load plugins from GStreamer core, gst-plugins-base, and gst-plugins-good, but not random other modules (we don't want any unit tests to fail just because some module in gst-plugins-bad has a broken plugin_init, for example). Also, we want to only load gst-plugins-good modules from the locally-built source tree, but not any of the older gst-plugins-good modules installed. This is usually assured by loading the ones in the source tree first (by adding that path first to the right environment variables), but it gets tricky when plugins are moved, removed, merged, or renamed, or the plugin filename changes. Note that 'make check' should really work right without doing 'make install' or uninstalling the old gst-plugins-good package (or any other gst-plugins-foo package) first. Enter GST_PLUGIN_LOADING_WHITELIST. This environment variable may contain source-package@path-prefix pairs separated by the platform search path separator (G_SEARCHPATH_SEPARATOR_S). The source package and path prefix are separated by the '@' character. The path prefix is entirely optional, as is the '@' separator if no path is given. It is also possible to filter based on plugin names instead of the name of the source-package by specifying one or more plugin names separated by commas before the optional path prefix. In short, the following match patterns are possible: plugin1,plugin2@pathprefix or plugin1,plugin2@* or just plugin1,plugin2 or source-package@pathprefix or source-package@* or just source-package So for our gst-plugins-good unit test example above, we would set the environment variable on *nix to something like this (will likely be a relative path in practice): gstreamer:gst-plugins-base:gst-plugins-good@/path/to/src/gst-plugins-good Fixes #619815 and #619717.
2010-05-27 11:36:10 +00:00
G_GNUC_INTERNAL guint32 priv_gst_plugin_loading_get_whitelist_hash (void);
G_GNUC_INTERNAL gboolean priv_gst_plugin_desc_is_whitelisted (GstPluginDesc * desc,
const gchar * filename);
pluginloading: add support for whitelisting based on plugin or source module name and path This feature is primarily intended for use in plugin modules' unit tests. Consider the following situation: gst-plugins-good is built against an installed GStreamer core. An older version of gst-plugins-good is also installed in that prefix, along with random other plugin modules. Now, when doing 'make check' in the just-built gst-plugins-good tree, we want to only load plugins from GStreamer core, gst-plugins-base, and gst-plugins-good, but not random other modules (we don't want any unit tests to fail just because some module in gst-plugins-bad has a broken plugin_init, for example). Also, we want to only load gst-plugins-good modules from the locally-built source tree, but not any of the older gst-plugins-good modules installed. This is usually assured by loading the ones in the source tree first (by adding that path first to the right environment variables), but it gets tricky when plugins are moved, removed, merged, or renamed, or the plugin filename changes. Note that 'make check' should really work right without doing 'make install' or uninstalling the old gst-plugins-good package (or any other gst-plugins-foo package) first. Enter GST_PLUGIN_LOADING_WHITELIST. This environment variable may contain source-package@path-prefix pairs separated by the platform search path separator (G_SEARCHPATH_SEPARATOR_S). The source package and path prefix are separated by the '@' character. The path prefix is entirely optional, as is the '@' separator if no path is given. It is also possible to filter based on plugin names instead of the name of the source-package by specifying one or more plugin names separated by commas before the optional path prefix. In short, the following match patterns are possible: plugin1,plugin2@pathprefix or plugin1,plugin2@* or just plugin1,plugin2 or source-package@pathprefix or source-package@* or just source-package So for our gst-plugins-good unit test example above, we would set the environment variable on *nix to something like this (will likely be a relative path in practice): gstreamer:gst-plugins-base:gst-plugins-good@/path/to/src/gst-plugins-good Fixes #619815 and #619717.
2010-05-27 11:36:10 +00:00
G_GNUC_INTERNAL gboolean _priv_plugin_deps_env_vars_changed (GstPlugin * plugin);
Add API for making a GStreamer plugin 'dependent' on external files, directories or environment variables, so that GS... Original commit message from CVS: * docs/gst/gstreamer-sections.txt:: * gst/gst_private.h: (GstPluginDep), (_GstPluginPrivate): * gst/gstplugin.c: (gst_plugin_init), (gst_plugin_finalize), (gst_plugin_class_init), (gst_plugin_list_free), (gst_plugin_ext_dep_get_env_vars_hash), (_priv_plugin_deps_env_vars_changed), (gst_plugin_ext_dep_extract_env_vars_paths), (gst_plugin_ext_dep_get_hash_from_stat_entry), (gst_plugin_ext_dep_direntry_matches), (gst_plugin_ext_dep_scan_dir_and_match_names), (gst_plugin_ext_dep_scan_path_with_filenames), (gst_plugin_ext_dep_get_stat_hash), (_priv_plugin_deps_files_changed), (gst_plugin_ext_dep_free), (gst_plugin_ext_dep_strv_equal), (gst_plugin_ext_dep_equals), (gst_plugin_add_dependency), (gst_plugin_add_dependency_simple): * gst/gstplugin.h: (GstPluginPrivate), (GstPluginFlags), (GST_PLUGIN_DEPENDENCY_FLAG_NONE), (GST_PLUGIN_DEPENDENCY_FLAG_RECURSE), (GST_PLUGIN_DEPENDENCY_FLAG_PATHS_ARE_DEFAULT_ONLY), (GST_PLUGIN_DEPENDENCY_FLAG_FILE_NAME_IS_SUFFIX), (GstPluginDependencyFlags), (GstPluginFilter): * gst/gstregistry.c: (gst_registry_scan_path_level): * gst/gstregistrybinary.c: (gst_registry_binary_save_feature), (gst_registry_binary_save_plugin_dep), (gst_registry_binary_save_plugin), (gst_registry_binary_load_feature), (gst_registry_binary_load_plugin_dep_strv), (gst_registry_binary_load_plugin_dep), (gst_registry_binary_load_plugin): * gst/gstregistrybinary.h: (GST_MAGIC_BINARY_VERSION_STR), (GstBinaryPluginElement), (_GstBinaryDep), (GstBinaryDep): * gst/gstregistryxml.c: (gst_registry_xml_save_plugin): Add API for making a GStreamer plugin 'dependent' on external files, directories or environment variables, so that GStreamer knows when it needs to re-load GStreamer plugins that wrap other plugin systems. Fixes bug #350477. API: add gst_plugin_add_dependency() API: add gst_plugin_add_dependency_simple()
2009-01-06 17:58:59 +00:00
G_GNUC_INTERNAL gboolean _priv_plugin_deps_files_changed (GstPlugin * plugin);
G_GNUC_INTERNAL gboolean _priv_gst_in_valgrind (void);
/* init functions called from gst_init(). */
G_GNUC_INTERNAL void _priv_gst_quarks_initialize (void);
G_GNUC_INTERNAL void _priv_gst_mini_object_initialize (void);
G_GNUC_INTERNAL void _priv_gst_memory_initialize (void);
G_GNUC_INTERNAL void _priv_gst_allocator_initialize (void);
G_GNUC_INTERNAL void _priv_gst_buffer_initialize (void);
G_GNUC_INTERNAL void _priv_gst_buffer_list_initialize (void);
G_GNUC_INTERNAL void _priv_gst_structure_initialize (void);
G_GNUC_INTERNAL void _priv_gst_caps_initialize (void);
G_GNUC_INTERNAL void _priv_gst_caps_features_initialize (void);
G_GNUC_INTERNAL void _priv_gst_event_initialize (void);
G_GNUC_INTERNAL void _priv_gst_format_initialize (void);
G_GNUC_INTERNAL void _priv_gst_message_initialize (void);
G_GNUC_INTERNAL void _priv_gst_meta_initialize (void);
G_GNUC_INTERNAL void _priv_gst_plugin_initialize (void);
G_GNUC_INTERNAL void _priv_gst_query_initialize (void);
G_GNUC_INTERNAL void _priv_gst_sample_initialize (void);
G_GNUC_INTERNAL void _priv_gst_tag_initialize (void);
G_GNUC_INTERNAL void _priv_gst_value_initialize (void);
G_GNUC_INTERNAL void _priv_gst_debug_init (void);
G_GNUC_INTERNAL void _priv_gst_context_initialize (void);
G_GNUC_INTERNAL void _priv_gst_toc_initialize (void);
G_GNUC_INTERNAL void _priv_gst_date_time_initialize (void);
/* Private registry functions */
G_GNUC_INTERNAL
gboolean _priv_gst_registry_remove_cache_plugins (GstRegistry *registry);
G_GNUC_INTERNAL void _priv_gst_registry_cleanup (void);
gboolean _gst_plugin_loader_client_run (void);
/* Used in GstBin for manual state handling */
G_GNUC_INTERNAL void _priv_gst_element_state_changed (GstElement *element,
GstState oldstate, GstState newstate, GstState pending);
/* used in both gststructure.c and gstcaps.c; numbers are completely made up */
#define STRUCTURE_ESTIMATED_STRING_LEN(s) (16 + gst_structure_n_fields(s) * 22)
#define FEATURES_ESTIMATED_STRING_LEN(s) (16 + gst_caps_features_get_size(s) * 14)
G_GNUC_INTERNAL
gboolean priv_gst_structure_append_to_gstring (const GstStructure * structure,
GString * s);
G_GNUC_INTERNAL
void priv_gst_caps_features_append_to_gstring (const GstCapsFeatures * features, GString *s);
G_GNUC_INTERNAL
gboolean priv_gst_structure_parse_name (gchar * str, gchar **start, gchar ** end, gchar ** next);
G_GNUC_INTERNAL
gboolean priv_gst_structure_parse_fields (gchar *str, gchar ** end, GstStructure *structure);
/* registry cache backends */
G_GNUC_INTERNAL
gboolean priv_gst_registry_binary_read_cache (GstRegistry * registry, const char *location);
G_GNUC_INTERNAL
gboolean priv_gst_registry_binary_write_cache (GstRegistry * registry, GList * plugins, const char *location);
G_GNUC_INTERNAL
void __gst_element_factory_add_static_pad_template (GstElementFactory * elementfactory,
GstStaticPadTemplate * templ);
G_GNUC_INTERNAL
void __gst_element_factory_add_interface (GstElementFactory * elementfactory,
const gchar * interfacename);
/* used in gstvalue.c and gststructure.c */
#define GST_ASCII_IS_STRING(c) (g_ascii_isalnum((c)) || ((c) == '_') || \
((c) == '-') || ((c) == '+') || ((c) == '/') || ((c) == ':') || \
((c) == '.'))
/* This is only meant for internal uses */
G_GNUC_INTERNAL
gint __gst_date_time_compare (const GstDateTime * dt1, const GstDateTime * dt2);
G_GNUC_INTERNAL
gchar * __gst_date_time_serialize (GstDateTime * datetime, gboolean with_usecs);
/* Non-static, for access from the testsuite, but not for external use */
gboolean
_priv_gst_do_linear_regression (GstClockTime *times, guint n,
GstClockTime * m_num, GstClockTime * m_denom, GstClockTime * b,
GstClockTime * xbase, gdouble * r_squared);
/* For use in gstdebugutils */
G_GNUC_INTERNAL
GstCapsFeatures * __gst_caps_get_features_unchecked (const GstCaps * caps, guint idx);
#ifndef GST_DISABLE_REGISTRY
/* Secret variable to initialise gst without registry cache */
GST_EXPORT gboolean _gst_disable_registry_cache;
#endif
/* provide inline gst_g_value_get_foo_unchecked(), used in gststructure.c */
#define DEFINE_INLINE_G_VALUE_GET_UNCHECKED(ret_type,name_type,v_field) \
static inline ret_type \
gst_g_value_get_##name_type##_unchecked (const GValue *value) \
{ \
return value->data[0].v_field; \
}
DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gboolean,boolean,v_int)
DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gint,int,v_int)
DEFINE_INLINE_G_VALUE_GET_UNCHECKED(guint,uint,v_uint)
DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gint64,int64,v_int64)
DEFINE_INLINE_G_VALUE_GET_UNCHECKED(guint64,uint64,v_uint64)
DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gfloat,float,v_float)
DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gdouble,double,v_double)
DEFINE_INLINE_G_VALUE_GET_UNCHECKED(const gchar *,string,v_pointer)
/*** debugging categories *****************************************************/
#ifndef GST_REMOVE_GST_DEBUG
GST_EXPORT GstDebugCategory *GST_CAT_GST_INIT;
GST_EXPORT GstDebugCategory *GST_CAT_MEMORY;
GST_EXPORT GstDebugCategory *GST_CAT_PARENTAGE;
GST_EXPORT GstDebugCategory *GST_CAT_STATES;
GST_EXPORT GstDebugCategory *GST_CAT_SCHEDULING;
GST_EXPORT GstDebugCategory *GST_CAT_BUFFER;
GST_EXPORT GstDebugCategory *GST_CAT_BUFFER_LIST;
GST_EXPORT GstDebugCategory *GST_CAT_BUS;
GST_EXPORT GstDebugCategory *GST_CAT_CAPS;
GST_EXPORT GstDebugCategory *GST_CAT_CLOCK;
GST_EXPORT GstDebugCategory *GST_CAT_ELEMENT_PADS;
GST_EXPORT GstDebugCategory *GST_CAT_PADS;
GST_EXPORT GstDebugCategory *GST_CAT_PERFORMANCE;
GST_EXPORT GstDebugCategory *GST_CAT_PIPELINE;
GST_EXPORT GstDebugCategory *GST_CAT_PLUGIN_LOADING;
GST_EXPORT GstDebugCategory *GST_CAT_PLUGIN_INFO;
GST_EXPORT GstDebugCategory *GST_CAT_PROPERTIES;
GST_EXPORT GstDebugCategory *GST_CAT_NEGOTIATION;
GST_EXPORT GstDebugCategory *GST_CAT_REFCOUNTING;
GST_EXPORT GstDebugCategory *GST_CAT_ERROR_SYSTEM;
GST_EXPORT GstDebugCategory *GST_CAT_EVENT;
GST_EXPORT GstDebugCategory *GST_CAT_MESSAGE;
GST_EXPORT GstDebugCategory *GST_CAT_PARAMS;
GST_EXPORT GstDebugCategory *GST_CAT_CALL_TRACE;
GST_EXPORT GstDebugCategory *GST_CAT_SIGNAL;
GST_EXPORT GstDebugCategory *GST_CAT_PROBE;
GST_EXPORT GstDebugCategory *GST_CAT_REGISTRY;
GST_EXPORT GstDebugCategory *GST_CAT_QOS;
GST_EXPORT GstDebugCategory *GST_CAT_META;
2012-07-04 14:04:28 +00:00
GST_EXPORT GstDebugCategory *GST_CAT_LOCKING;
GST_EXPORT GstDebugCategory *GST_CAT_CONTEXT;
/* Categories that should be completely private to
* libgstreamer should be done like this: */
#define GST_CAT_POLL _priv_GST_CAT_POLL
extern GstDebugCategory *_priv_GST_CAT_POLL;
protection: add GstProtectionMeta to support protected content In order to support some types of protected streams (such as those protected using DASH Common Encryption) some per-buffer information needs to be passed between elements. This commit adds a GstMeta type called GstProtectionMeta that allows protection specific information to be added to a GstBuffer. An example of its usage is qtdemux providing information to each output sample that enables a downstream element to decrypt it. This commit adds a utility function to select a supported protection system from the installed Decryption elements found in the registry. The gst_protection_select_system function that takes an array of identifiers and searches the registry for a element of klass Decryptor that supports one or more of the supplied identifiers. If multiple elements are found, the one with the highest rank is selected. This commit adds a unit test for the gst_protection_select_system function that adds a fake Decryptor element to the registry and then checks that it can correctly be selected by the utility function. This commit adds a unit test for GstProtectionMeta that creates GstProtectionMeta and adds & removes it from a buffer and performs some simple reference count checks. API: gst_buffer_add_protection_meta() API: gst_buffer_get_protection_meta() API: gst_protection_select_system() API: gst_protection_meta_api_get_type() API: gst_protection_meta_get_info() https://bugzilla.gnome.org/show_bug.cgi?id=705991
2015-04-15 14:33:31 +00:00
#define GST_CAT_PROTECTION _priv_GST_CAT_PROTECTION
extern GstDebugCategory *_priv_GST_CAT_PROTECTION;
extern GstClockTime _priv_gst_info_start_time;
#else
#define GST_CAT_GST_INIT NULL
#define GST_CAT_AUTOPLUG NULL
#define GST_CAT_AUTOPLUG_ATTEMPT NULL
#define GST_CAT_PARENTAGE NULL
#define GST_CAT_STATES NULL
#define GST_CAT_SCHEDULING NULL
#define GST_CAT_DATAFLOW NULL
#define GST_CAT_BUFFER NULL
#define GST_CAT_BUFFER_LIST NULL
#define GST_CAT_BUS NULL
#define GST_CAT_CAPS NULL
#define GST_CAT_CLOCK NULL
#define GST_CAT_ELEMENT_PADS NULL
#define GST_CAT_PADS NULL
#define GST_CAT_PERFORMANCE NULL
#define GST_CAT_PIPELINE NULL
#define GST_CAT_PLUGIN_LOADING NULL
#define GST_CAT_PLUGIN_INFO NULL
#define GST_CAT_PROPERTIES NULL
#define GST_CAT_NEGOTIATION NULL
#define GST_CAT_REFCOUNTING NULL
#define GST_CAT_ERROR_SYSTEM NULL
#define GST_CAT_EVENT NULL
#define GST_CAT_MESSAGE NULL
#define GST_CAT_PARAMS NULL
#define GST_CAT_CALL_TRACE NULL
#define GST_CAT_SIGNAL NULL
#define GST_CAT_PROBE NULL
#define GST_CAT_REGISTRY NULL
#define GST_CAT_QOS NULL
#define GST_CAT_TYPES NULL
#define GST_CAT_POLL NULL
#define GST_CAT_META NULL
2012-07-04 14:04:28 +00:00
#define GST_CAT_LOCKING NULL
#define GST_CAT_CONTEXT NULL
protection: add GstProtectionMeta to support protected content In order to support some types of protected streams (such as those protected using DASH Common Encryption) some per-buffer information needs to be passed between elements. This commit adds a GstMeta type called GstProtectionMeta that allows protection specific information to be added to a GstBuffer. An example of its usage is qtdemux providing information to each output sample that enables a downstream element to decrypt it. This commit adds a utility function to select a supported protection system from the installed Decryption elements found in the registry. The gst_protection_select_system function that takes an array of identifiers and searches the registry for a element of klass Decryptor that supports one or more of the supplied identifiers. If multiple elements are found, the one with the highest rank is selected. This commit adds a unit test for the gst_protection_select_system function that adds a fake Decryptor element to the registry and then checks that it can correctly be selected by the utility function. This commit adds a unit test for GstProtectionMeta that creates GstProtectionMeta and adds & removes it from a buffer and performs some simple reference count checks. API: gst_buffer_add_protection_meta() API: gst_buffer_get_protection_meta() API: gst_protection_select_system() API: gst_protection_meta_api_get_type() API: gst_protection_meta_get_info() https://bugzilla.gnome.org/show_bug.cgi?id=705991
2015-04-15 14:33:31 +00:00
#define GST_CAT_PROTECTION NULL
#endif
#ifdef GST_DISABLE_GST_DEBUG
/* for _gst_element_error_printf */
#define __gst_vasprintf __gst_info_fallback_vasprintf
int __gst_vasprintf (char **result, char const *format, va_list args);
#endif
/**** objects made opaque until the private bits have been made private ****/
#include <gmodule.h>
#include <time.h> /* time_t */
#include <sys/types.h> /* off_t */
#include <sys/stat.h> /* off_t */
typedef struct _GstPluginPrivate GstPluginPrivate;
struct _GstPlugin {
GstObject object;
/*< private >*/
GstPluginDesc desc;
GstPluginDesc *orig_desc;
gchar * filename;
gchar * basename; /* base name (non-dir part) of plugin path */
GModule * module; /* contains the module if plugin is loaded */
off_t file_size;
time_t file_mtime;
gboolean registered; /* TRUE when the registry has seen a filename
* that matches the plugin's basename */
GstPluginPrivate *priv;
gpointer _gst_reserved[GST_PADDING];
};
struct _GstPluginClass {
GstObjectClass object_class;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
struct _GstPluginFeature {
GstObject object;
/*< private >*/
gboolean loaded;
guint rank;
const gchar *plugin_name;
GstPlugin *plugin; /* weak ref */
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
struct _GstPluginFeatureClass {
GstObjectClass parent_class;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
#include "gsttypefind.h"
struct _GstTypeFindFactory {
GstPluginFeature feature;
/* <private> */
GstTypeFindFunction function;
gchar ** extensions;
GstCaps * caps;
gpointer user_data;
GDestroyNotify user_data_notify;
gpointer _gst_reserved[GST_PADDING];
};
struct _GstTypeFindFactoryClass {
GstPluginFeatureClass parent;
/* <private> */
gpointer _gst_reserved[GST_PADDING];
};
struct _GstElementFactory {
GstPluginFeature parent;
GType type; /* unique GType of element or 0 if not loaded */
gpointer metadata;
GList * staticpadtemplates; /* GstStaticPadTemplate list */
guint numpadtemplates;
/* URI interface stuff */
GstURIType uri_type;
gchar ** uri_protocols;
GList * interfaces; /* interface type names this element implements */
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
struct _GstElementFactoryClass {
GstPluginFeatureClass parent_class;
gpointer _gst_reserved[GST_PADDING];
};
struct _GstDeviceProviderFactory {
GstPluginFeature feature;
/* <private> */
GType type; /* unique GType the device factory or 0 if not loaded */
volatile GstDeviceProvider *provider;
gpointer metadata;
gpointer _gst_reserved[GST_PADDING];
};
struct _GstDeviceProviderFactoryClass {
GstPluginFeatureClass parent;
/* <private> */
gpointer _gst_reserved[GST_PADDING];
};
/* privat flag used by GstBus / GstMessage */
#define GST_MESSAGE_FLAG_ASYNC_DELIVERY (GST_MINI_OBJECT_FLAG_LAST << 0)
G_END_DECLS
#endif /* __GST_PRIVATE_H__ */