2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wtay@chello.be>
5 * gst_private.h: Private header for within libgst
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
23 #ifndef __GST_PRIVATE_H__
24 #define __GST_PRIVATE_H__
27 # ifndef GST_LICENSE /* don't include config.h twice, it has no guards */
32 /* This needs to be before glib.h, since it might be used in inline
34 extern const char g_log_domain_gstreamer[];
41 /* Needed for GstRegistry * */
42 #include "gstregistry.h"
43 #include "gststructure.h"
45 /* we need this in pretty much all files */
48 /* for the flags in the GstPluginDep structure below */
49 #include "gstplugin.h"
51 /* for the pad cache */
55 #include "gstelement.h"
57 /* for GstDeviceProvider */
58 #include "gstdeviceprovider.h"
63 #include "gstdatetime.h"
65 #include "gsttracerutils.h"
69 /* used by gstparse.c and grammar.y */
70 struct _GstParseContext {
71 GList * missing_elements;
74 /* used by gstplugin.c and gstregistrybinary.c */
76 /* details registered via gst_plugin_add_dependency() */
77 GstPluginDependencyFlags flags;
82 /* information saved from the last time the plugin was loaded (-1 = unset) */
83 guint env_hash; /* hash of content of environment variables in env_vars */
84 guint stat_hash; /* hash of stat() on all relevant files and directories */
87 struct _GstPluginPrivate {
88 GList *deps; /* list of GstPluginDep structures */
89 GstStructure *cache_data;
92 /* FIXME: could rename all priv_gst_* functions to __gst_* now */
93 G_GNUC_INTERNAL gboolean priv_gst_plugin_loading_have_whitelist (void);
95 G_GNUC_INTERNAL guint32 priv_gst_plugin_loading_get_whitelist_hash (void);
97 G_GNUC_INTERNAL gboolean priv_gst_plugin_desc_is_whitelisted (GstPluginDesc * desc,
98 const gchar * filename);
100 G_GNUC_INTERNAL gboolean _priv_plugin_deps_env_vars_changed (GstPlugin * plugin);
102 G_GNUC_INTERNAL gboolean _priv_plugin_deps_files_changed (GstPlugin * plugin);
104 G_GNUC_INTERNAL gboolean _priv_gst_in_valgrind (void);
106 /* init functions called from gst_init(). */
107 G_GNUC_INTERNAL void _priv_gst_quarks_initialize (void);
108 G_GNUC_INTERNAL void _priv_gst_mini_object_initialize (void);
109 G_GNUC_INTERNAL void _priv_gst_memory_initialize (void);
110 G_GNUC_INTERNAL void _priv_gst_allocator_initialize (void);
111 G_GNUC_INTERNAL void _priv_gst_buffer_initialize (void);
112 G_GNUC_INTERNAL void _priv_gst_buffer_list_initialize (void);
113 G_GNUC_INTERNAL void _priv_gst_structure_initialize (void);
114 G_GNUC_INTERNAL void _priv_gst_caps_initialize (void);
115 G_GNUC_INTERNAL void _priv_gst_caps_features_initialize (void);
116 G_GNUC_INTERNAL void _priv_gst_event_initialize (void);
117 G_GNUC_INTERNAL void _priv_gst_format_initialize (void);
118 G_GNUC_INTERNAL void _priv_gst_message_initialize (void);
119 G_GNUC_INTERNAL void _priv_gst_meta_initialize (void);
120 G_GNUC_INTERNAL void _priv_gst_plugin_initialize (void);
121 G_GNUC_INTERNAL void _priv_gst_query_initialize (void);
122 G_GNUC_INTERNAL void _priv_gst_sample_initialize (void);
123 G_GNUC_INTERNAL void _priv_gst_tag_initialize (void);
124 G_GNUC_INTERNAL void _priv_gst_value_initialize (void);
125 G_GNUC_INTERNAL void _priv_gst_debug_init (void);
126 G_GNUC_INTERNAL void _priv_gst_context_initialize (void);
127 G_GNUC_INTERNAL void _priv_gst_toc_initialize (void);
128 G_GNUC_INTERNAL void _priv_gst_date_time_initialize (void);
130 /* cleanup functions called from gst_deinit(). */
131 G_GNUC_INTERNAL void _priv_gst_allocator_cleanup (void);
133 /* Private registry functions */
135 gboolean _priv_gst_registry_remove_cache_plugins (GstRegistry *registry);
137 G_GNUC_INTERNAL void _priv_gst_registry_cleanup (void);
139 gboolean _gst_plugin_loader_client_run (void);
141 G_GNUC_INTERNAL GstPlugin * _priv_gst_plugin_load_file_for_registry (const gchar *filename,
142 GstRegistry * registry,
145 /* Used in GstBin for manual state handling */
146 G_GNUC_INTERNAL void _priv_gst_element_state_changed (GstElement *element,
147 GstState oldstate, GstState newstate, GstState pending);
149 /* used in both gststructure.c and gstcaps.c; numbers are completely made up */
150 #define STRUCTURE_ESTIMATED_STRING_LEN(s) (16 + gst_structure_n_fields(s) * 22)
151 #define FEATURES_ESTIMATED_STRING_LEN(s) (16 + gst_caps_features_get_size(s) * 14)
154 gboolean priv_gst_structure_append_to_gstring (const GstStructure * structure,
157 gboolean priv__gst_structure_append_template_to_gstring (GQuark field_id,
162 void priv_gst_caps_features_append_to_gstring (const GstCapsFeatures * features, GString *s);
165 gboolean priv_gst_structure_parse_name (gchar * str, gchar **start, gchar ** end, gchar ** next);
167 gboolean priv_gst_structure_parse_fields (gchar *str, gchar ** end, GstStructure *structure);
169 /* used in gstvalue.c and gststructure.c */
171 #define GST_WRAPPED_PTR_FORMAT "p\aa"
174 gchar *priv_gst_string_take_and_wrap (gchar * s);
176 /* registry cache backends */
178 gboolean priv_gst_registry_binary_read_cache (GstRegistry * registry, const char *location);
181 gboolean priv_gst_registry_binary_write_cache (GstRegistry * registry, GList * plugins, const char *location);
185 void __gst_element_factory_add_static_pad_template (GstElementFactory * elementfactory,
186 GstStaticPadTemplate * templ);
189 void __gst_element_factory_add_interface (GstElementFactory * elementfactory,
190 const gchar * interfacename);
192 /* used in gstvalue.c and gststructure.c */
193 #define GST_ASCII_IS_STRING(c) (g_ascii_isalnum((c)) || ((c) == '_') || \
194 ((c) == '-') || ((c) == '+') || ((c) == '/') || ((c) == ':') || \
197 /* This is only meant for internal uses */
199 gint __gst_date_time_compare (const GstDateTime * dt1, const GstDateTime * dt2);
202 gchar * __gst_date_time_serialize (GstDateTime * datetime, gboolean with_usecs);
204 /* Non-static, for access from the testsuite, but not for external use */
206 _priv_gst_do_linear_regression (GstClockTime *times, guint n,
207 GstClockTime * m_num, GstClockTime * m_denom, GstClockTime * b,
208 GstClockTime * xbase, gdouble * r_squared);
210 /* For use in gstdebugutils */
212 GstCapsFeatures * __gst_caps_get_features_unchecked (const GstCaps * caps, guint idx);
214 #ifndef GST_DISABLE_REGISTRY
215 /* Secret variable to initialise gst without registry cache */
216 GST_EXPORT gboolean _gst_disable_registry_cache;
219 /* provide inline gst_g_value_get_foo_unchecked(), used in gststructure.c */
220 #define DEFINE_INLINE_G_VALUE_GET_UNCHECKED(ret_type,name_type,v_field) \
221 static inline ret_type \
222 gst_g_value_get_##name_type##_unchecked (const GValue *value) \
224 return value->data[0].v_field; \
227 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gboolean,boolean,v_int)
228 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gint,int,v_int)
229 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(guint,uint,v_uint)
230 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gint64,int64,v_int64)
231 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(guint64,uint64,v_uint64)
232 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gfloat,float,v_float)
233 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gdouble,double,v_double)
234 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(const gchar *,string,v_pointer)
237 /*** debugging categories *****************************************************/
239 #ifndef GST_REMOVE_GST_DEBUG
241 GST_EXPORT GstDebugCategory *GST_CAT_GST_INIT;
242 GST_EXPORT GstDebugCategory *GST_CAT_MEMORY;
243 GST_EXPORT GstDebugCategory *GST_CAT_PARENTAGE;
244 GST_EXPORT GstDebugCategory *GST_CAT_STATES;
245 GST_EXPORT GstDebugCategory *GST_CAT_SCHEDULING;
246 GST_EXPORT GstDebugCategory *GST_CAT_BUFFER;
247 GST_EXPORT GstDebugCategory *GST_CAT_BUFFER_LIST;
248 GST_EXPORT GstDebugCategory *GST_CAT_BUS;
249 GST_EXPORT GstDebugCategory *GST_CAT_CAPS;
250 GST_EXPORT GstDebugCategory *GST_CAT_CLOCK;
251 GST_EXPORT GstDebugCategory *GST_CAT_ELEMENT_PADS;
252 GST_EXPORT GstDebugCategory *GST_CAT_PADS;
253 GST_EXPORT GstDebugCategory *GST_CAT_PERFORMANCE;
254 GST_EXPORT GstDebugCategory *GST_CAT_PIPELINE;
255 GST_EXPORT GstDebugCategory *GST_CAT_PLUGIN_LOADING;
256 GST_EXPORT GstDebugCategory *GST_CAT_PLUGIN_INFO;
257 GST_EXPORT GstDebugCategory *GST_CAT_PROPERTIES;
258 GST_EXPORT GstDebugCategory *GST_CAT_NEGOTIATION;
259 GST_EXPORT GstDebugCategory *GST_CAT_REFCOUNTING;
260 GST_EXPORT GstDebugCategory *GST_CAT_ERROR_SYSTEM;
261 GST_EXPORT GstDebugCategory *GST_CAT_EVENT;
262 GST_EXPORT GstDebugCategory *GST_CAT_MESSAGE;
263 GST_EXPORT GstDebugCategory *GST_CAT_PARAMS;
264 GST_EXPORT GstDebugCategory *GST_CAT_CALL_TRACE;
265 GST_EXPORT GstDebugCategory *GST_CAT_SIGNAL;
266 GST_EXPORT GstDebugCategory *GST_CAT_PROBE;
267 GST_EXPORT GstDebugCategory *GST_CAT_REGISTRY;
268 GST_EXPORT GstDebugCategory *GST_CAT_QOS;
269 GST_EXPORT GstDebugCategory *GST_CAT_META;
270 GST_EXPORT GstDebugCategory *GST_CAT_LOCKING;
271 GST_EXPORT GstDebugCategory *GST_CAT_CONTEXT;
273 /* Categories that should be completely private to
274 * libgstreamer should be done like this: */
275 #define GST_CAT_POLL _priv_GST_CAT_POLL
276 extern GstDebugCategory *_priv_GST_CAT_POLL;
278 #define GST_CAT_PROTECTION _priv_GST_CAT_PROTECTION
279 extern GstDebugCategory *_priv_GST_CAT_PROTECTION;
281 extern GstClockTime _priv_gst_start_time;
285 #define GST_CAT_GST_INIT NULL
286 #define GST_CAT_AUTOPLUG NULL
287 #define GST_CAT_AUTOPLUG_ATTEMPT NULL
288 #define GST_CAT_PARENTAGE NULL
289 #define GST_CAT_STATES NULL
290 #define GST_CAT_SCHEDULING NULL
291 #define GST_CAT_DATAFLOW NULL
292 #define GST_CAT_BUFFER NULL
293 #define GST_CAT_BUFFER_LIST NULL
294 #define GST_CAT_BUS NULL
295 #define GST_CAT_CAPS NULL
296 #define GST_CAT_CLOCK NULL
297 #define GST_CAT_ELEMENT_PADS NULL
298 #define GST_CAT_PADS NULL
299 #define GST_CAT_PERFORMANCE NULL
300 #define GST_CAT_PIPELINE NULL
301 #define GST_CAT_PLUGIN_LOADING NULL
302 #define GST_CAT_PLUGIN_INFO NULL
303 #define GST_CAT_PROPERTIES NULL
304 #define GST_CAT_NEGOTIATION NULL
305 #define GST_CAT_REFCOUNTING NULL
306 #define GST_CAT_ERROR_SYSTEM NULL
307 #define GST_CAT_EVENT NULL
308 #define GST_CAT_MESSAGE NULL
309 #define GST_CAT_PARAMS NULL
310 #define GST_CAT_CALL_TRACE NULL
311 #define GST_CAT_SIGNAL NULL
312 #define GST_CAT_PROBE NULL
313 #define GST_CAT_REGISTRY NULL
314 #define GST_CAT_QOS NULL
315 #define GST_CAT_TYPES NULL
316 #define GST_CAT_POLL NULL
317 #define GST_CAT_META NULL
318 #define GST_CAT_LOCKING NULL
319 #define GST_CAT_CONTEXT NULL
320 #define GST_CAT_PROTECTION NULL
324 #ifdef GST_DISABLE_GST_DEBUG
325 /* for _gst_element_error_printf */
326 #define __gst_vasprintf __gst_info_fallback_vasprintf
327 int __gst_vasprintf (char **result, char const *format, va_list args);
330 /**** objects made opaque until the private bits have been made private ****/
333 #include <time.h> /* time_t */
334 #include <sys/types.h> /* off_t */
335 #include <sys/stat.h> /* off_t */
337 typedef struct _GstPluginPrivate GstPluginPrivate;
345 GstPluginDesc *orig_desc;
348 gchar * basename; /* base name (non-dir part) of plugin path */
350 GModule * module; /* contains the module if plugin is loaded */
354 gboolean registered; /* TRUE when the registry has seen a filename
355 * that matches the plugin's basename */
357 GstPluginPrivate *priv;
359 gpointer _gst_reserved[GST_PADDING];
362 struct _GstPluginClass {
363 GstObjectClass object_class;
366 gpointer _gst_reserved[GST_PADDING];
369 struct _GstPluginFeature {
376 const gchar *plugin_name;
377 GstPlugin *plugin; /* weak ref */
380 gpointer _gst_reserved[GST_PADDING];
383 struct _GstPluginFeatureClass {
384 GstObjectClass parent_class;
387 gpointer _gst_reserved[GST_PADDING];
390 #include "gsttypefind.h"
392 struct _GstTypeFindFactory {
393 GstPluginFeature feature;
396 GstTypeFindFunction function;
401 GDestroyNotify user_data_notify;
403 gpointer _gst_reserved[GST_PADDING];
406 struct _GstTypeFindFactoryClass {
407 GstPluginFeatureClass parent;
410 gpointer _gst_reserved[GST_PADDING];
413 struct _GstTracerFactory {
414 GstPluginFeature feature;
421 GDestroyNotify user_data_notify;
424 gpointer _gst_reserved[GST_PADDING];
427 struct _GstTracerFactoryClass {
428 GstPluginFeatureClass parent;
431 gpointer _gst_reserved[GST_PADDING];
434 struct _GstElementFactory {
435 GstPluginFeature parent;
437 GType type; /* unique GType of element or 0 if not loaded */
441 GList * staticpadtemplates; /* GstStaticPadTemplate list */
442 guint numpadtemplates;
444 /* URI interface stuff */
446 gchar ** uri_protocols;
448 GList * interfaces; /* interface type names this element implements */
451 gpointer _gst_reserved[GST_PADDING];
454 struct _GstElementFactoryClass {
455 GstPluginFeatureClass parent_class;
457 gpointer _gst_reserved[GST_PADDING];
460 struct _GstDeviceProviderFactory {
461 GstPluginFeature feature;
464 GType type; /* unique GType the device factory or 0 if not loaded */
466 volatile GstDeviceProvider *provider;
469 gpointer _gst_reserved[GST_PADDING];
472 struct _GstDeviceProviderFactoryClass {
473 GstPluginFeatureClass parent;
476 gpointer _gst_reserved[GST_PADDING];
479 /* privat flag used by GstBus / GstMessage */
480 #define GST_MESSAGE_FLAG_ASYNC_DELIVERY (GST_MINI_OBJECT_FLAG_LAST << 0)
483 #endif /* __GST_PRIVATE_H__ */