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);
132 G_GNUC_INTERNAL void _priv_gst_caps_features_cleanup (void);
133 G_GNUC_INTERNAL void _priv_gst_caps_cleanup (void);
135 /* Private registry functions */
137 gboolean _priv_gst_registry_remove_cache_plugins (GstRegistry *registry);
139 G_GNUC_INTERNAL void _priv_gst_registry_cleanup (void);
141 gboolean _gst_plugin_loader_client_run (void);
143 G_GNUC_INTERNAL GstPlugin * _priv_gst_plugin_load_file_for_registry (const gchar *filename,
144 GstRegistry * registry,
147 /* Used in GstBin for manual state handling */
148 G_GNUC_INTERNAL void _priv_gst_element_state_changed (GstElement *element,
149 GstState oldstate, GstState newstate, GstState pending);
151 /* used in both gststructure.c and gstcaps.c; numbers are completely made up */
152 #define STRUCTURE_ESTIMATED_STRING_LEN(s) (16 + gst_structure_n_fields(s) * 22)
153 #define FEATURES_ESTIMATED_STRING_LEN(s) (16 + gst_caps_features_get_size(s) * 14)
156 gboolean priv_gst_structure_append_to_gstring (const GstStructure * structure,
159 gboolean priv__gst_structure_append_template_to_gstring (GQuark field_id,
164 void priv_gst_caps_features_append_to_gstring (const GstCapsFeatures * features, GString *s);
167 gboolean priv_gst_structure_parse_name (gchar * str, gchar **start, gchar ** end, gchar ** next);
169 gboolean priv_gst_structure_parse_fields (gchar *str, gchar ** end, GstStructure *structure);
171 /* used in gstvalue.c and gststructure.c */
173 #define GST_WRAPPED_PTR_FORMAT "p\aa"
176 gchar *priv_gst_string_take_and_wrap (gchar * s);
178 /* registry cache backends */
180 gboolean priv_gst_registry_binary_read_cache (GstRegistry * registry, const char *location);
183 gboolean priv_gst_registry_binary_write_cache (GstRegistry * registry, GList * plugins, const char *location);
187 void __gst_element_factory_add_static_pad_template (GstElementFactory * elementfactory,
188 GstStaticPadTemplate * templ);
191 void __gst_element_factory_add_interface (GstElementFactory * elementfactory,
192 const gchar * interfacename);
194 /* used in gstvalue.c and gststructure.c */
195 #define GST_ASCII_IS_STRING(c) (g_ascii_isalnum((c)) || ((c) == '_') || \
196 ((c) == '-') || ((c) == '+') || ((c) == '/') || ((c) == ':') || \
199 /* This is only meant for internal uses */
201 gint __gst_date_time_compare (const GstDateTime * dt1, const GstDateTime * dt2);
204 gchar * __gst_date_time_serialize (GstDateTime * datetime, gboolean with_usecs);
206 /* Non-static, for access from the testsuite, but not for external use */
208 _priv_gst_do_linear_regression (GstClockTime *times, guint n,
209 GstClockTime * m_num, GstClockTime * m_denom, GstClockTime * b,
210 GstClockTime * xbase, gdouble * r_squared);
212 /* For use in gstdebugutils */
214 GstCapsFeatures * __gst_caps_get_features_unchecked (const GstCaps * caps, guint idx);
216 #ifndef GST_DISABLE_REGISTRY
217 /* Secret variable to initialise gst without registry cache */
218 GST_EXPORT gboolean _gst_disable_registry_cache;
221 /* provide inline gst_g_value_get_foo_unchecked(), used in gststructure.c */
222 #define DEFINE_INLINE_G_VALUE_GET_UNCHECKED(ret_type,name_type,v_field) \
223 static inline ret_type \
224 gst_g_value_get_##name_type##_unchecked (const GValue *value) \
226 return value->data[0].v_field; \
229 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gboolean,boolean,v_int)
230 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gint,int,v_int)
231 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(guint,uint,v_uint)
232 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gint64,int64,v_int64)
233 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(guint64,uint64,v_uint64)
234 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gfloat,float,v_float)
235 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(gdouble,double,v_double)
236 DEFINE_INLINE_G_VALUE_GET_UNCHECKED(const gchar *,string,v_pointer)
239 /*** debugging categories *****************************************************/
241 #ifndef GST_REMOVE_GST_DEBUG
243 GST_EXPORT GstDebugCategory *GST_CAT_GST_INIT;
244 GST_EXPORT GstDebugCategory *GST_CAT_MEMORY;
245 GST_EXPORT GstDebugCategory *GST_CAT_PARENTAGE;
246 GST_EXPORT GstDebugCategory *GST_CAT_STATES;
247 GST_EXPORT GstDebugCategory *GST_CAT_SCHEDULING;
248 GST_EXPORT GstDebugCategory *GST_CAT_BUFFER;
249 GST_EXPORT GstDebugCategory *GST_CAT_BUFFER_LIST;
250 GST_EXPORT GstDebugCategory *GST_CAT_BUS;
251 GST_EXPORT GstDebugCategory *GST_CAT_CAPS;
252 GST_EXPORT GstDebugCategory *GST_CAT_CLOCK;
253 GST_EXPORT GstDebugCategory *GST_CAT_ELEMENT_PADS;
254 GST_EXPORT GstDebugCategory *GST_CAT_PADS;
255 GST_EXPORT GstDebugCategory *GST_CAT_PERFORMANCE;
256 GST_EXPORT GstDebugCategory *GST_CAT_PIPELINE;
257 GST_EXPORT GstDebugCategory *GST_CAT_PLUGIN_LOADING;
258 GST_EXPORT GstDebugCategory *GST_CAT_PLUGIN_INFO;
259 GST_EXPORT GstDebugCategory *GST_CAT_PROPERTIES;
260 GST_EXPORT GstDebugCategory *GST_CAT_NEGOTIATION;
261 GST_EXPORT GstDebugCategory *GST_CAT_REFCOUNTING;
262 GST_EXPORT GstDebugCategory *GST_CAT_ERROR_SYSTEM;
263 GST_EXPORT GstDebugCategory *GST_CAT_EVENT;
264 GST_EXPORT GstDebugCategory *GST_CAT_MESSAGE;
265 GST_EXPORT GstDebugCategory *GST_CAT_PARAMS;
266 GST_EXPORT GstDebugCategory *GST_CAT_CALL_TRACE;
267 GST_EXPORT GstDebugCategory *GST_CAT_SIGNAL;
268 GST_EXPORT GstDebugCategory *GST_CAT_PROBE;
269 GST_EXPORT GstDebugCategory *GST_CAT_REGISTRY;
270 GST_EXPORT GstDebugCategory *GST_CAT_QOS;
271 GST_EXPORT GstDebugCategory *GST_CAT_META;
272 GST_EXPORT GstDebugCategory *GST_CAT_LOCKING;
273 GST_EXPORT GstDebugCategory *GST_CAT_CONTEXT;
275 /* Categories that should be completely private to
276 * libgstreamer should be done like this: */
277 #define GST_CAT_POLL _priv_GST_CAT_POLL
278 extern GstDebugCategory *_priv_GST_CAT_POLL;
280 #define GST_CAT_PROTECTION _priv_GST_CAT_PROTECTION
281 extern GstDebugCategory *_priv_GST_CAT_PROTECTION;
283 extern GstClockTime _priv_gst_start_time;
287 #define GST_CAT_GST_INIT NULL
288 #define GST_CAT_AUTOPLUG NULL
289 #define GST_CAT_AUTOPLUG_ATTEMPT NULL
290 #define GST_CAT_PARENTAGE NULL
291 #define GST_CAT_STATES NULL
292 #define GST_CAT_SCHEDULING NULL
293 #define GST_CAT_DATAFLOW NULL
294 #define GST_CAT_BUFFER NULL
295 #define GST_CAT_BUFFER_LIST NULL
296 #define GST_CAT_BUS NULL
297 #define GST_CAT_CAPS NULL
298 #define GST_CAT_CLOCK NULL
299 #define GST_CAT_ELEMENT_PADS NULL
300 #define GST_CAT_PADS NULL
301 #define GST_CAT_PERFORMANCE NULL
302 #define GST_CAT_PIPELINE NULL
303 #define GST_CAT_PLUGIN_LOADING NULL
304 #define GST_CAT_PLUGIN_INFO NULL
305 #define GST_CAT_PROPERTIES NULL
306 #define GST_CAT_NEGOTIATION NULL
307 #define GST_CAT_REFCOUNTING NULL
308 #define GST_CAT_ERROR_SYSTEM NULL
309 #define GST_CAT_EVENT NULL
310 #define GST_CAT_MESSAGE NULL
311 #define GST_CAT_PARAMS NULL
312 #define GST_CAT_CALL_TRACE NULL
313 #define GST_CAT_SIGNAL NULL
314 #define GST_CAT_PROBE NULL
315 #define GST_CAT_REGISTRY NULL
316 #define GST_CAT_QOS NULL
317 #define GST_CAT_TYPES NULL
318 #define GST_CAT_POLL NULL
319 #define GST_CAT_META NULL
320 #define GST_CAT_LOCKING NULL
321 #define GST_CAT_CONTEXT NULL
322 #define GST_CAT_PROTECTION NULL
326 #ifdef GST_DISABLE_GST_DEBUG
327 /* for _gst_element_error_printf */
328 #define __gst_vasprintf __gst_info_fallback_vasprintf
329 int __gst_vasprintf (char **result, char const *format, va_list args);
332 /**** objects made opaque until the private bits have been made private ****/
335 #include <time.h> /* time_t */
336 #include <sys/types.h> /* off_t */
337 #include <sys/stat.h> /* off_t */
339 typedef struct _GstPluginPrivate GstPluginPrivate;
347 GstPluginDesc *orig_desc;
350 gchar * basename; /* base name (non-dir part) of plugin path */
352 GModule * module; /* contains the module if plugin is loaded */
356 gboolean registered; /* TRUE when the registry has seen a filename
357 * that matches the plugin's basename */
359 GstPluginPrivate *priv;
361 gpointer _gst_reserved[GST_PADDING];
364 struct _GstPluginClass {
365 GstObjectClass object_class;
368 gpointer _gst_reserved[GST_PADDING];
371 struct _GstPluginFeature {
378 const gchar *plugin_name;
379 GstPlugin *plugin; /* weak ref */
382 gpointer _gst_reserved[GST_PADDING];
385 struct _GstPluginFeatureClass {
386 GstObjectClass parent_class;
389 gpointer _gst_reserved[GST_PADDING];
392 #include "gsttypefind.h"
394 struct _GstTypeFindFactory {
395 GstPluginFeature feature;
398 GstTypeFindFunction function;
403 GDestroyNotify user_data_notify;
405 gpointer _gst_reserved[GST_PADDING];
408 struct _GstTypeFindFactoryClass {
409 GstPluginFeatureClass parent;
412 gpointer _gst_reserved[GST_PADDING];
415 struct _GstTracerFactory {
416 GstPluginFeature feature;
423 GDestroyNotify user_data_notify;
426 gpointer _gst_reserved[GST_PADDING];
429 struct _GstTracerFactoryClass {
430 GstPluginFeatureClass parent;
433 gpointer _gst_reserved[GST_PADDING];
436 struct _GstElementFactory {
437 GstPluginFeature parent;
439 GType type; /* unique GType of element or 0 if not loaded */
443 GList * staticpadtemplates; /* GstStaticPadTemplate list */
444 guint numpadtemplates;
446 /* URI interface stuff */
448 gchar ** uri_protocols;
450 GList * interfaces; /* interface type names this element implements */
453 gpointer _gst_reserved[GST_PADDING];
456 struct _GstElementFactoryClass {
457 GstPluginFeatureClass parent_class;
459 gpointer _gst_reserved[GST_PADDING];
462 struct _GstDeviceProviderFactory {
463 GstPluginFeature feature;
466 GType type; /* unique GType the device factory or 0 if not loaded */
468 volatile GstDeviceProvider *provider;
471 gpointer _gst_reserved[GST_PADDING];
474 struct _GstDeviceProviderFactoryClass {
475 GstPluginFeatureClass parent;
478 gpointer _gst_reserved[GST_PADDING];
481 /* privat flag used by GstBus / GstMessage */
482 #define GST_MESSAGE_FLAG_ASYNC_DELIVERY (GST_MINI_OBJECT_FLAG_LAST << 0)
485 #endif /* __GST_PRIVATE_H__ */