gst/gst_private.h - mtk-gstreamer-debian - Git at Google

 /* 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., 59 Temple Place - Suite 330,
  * Boston, MA 02111-1307, 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"

 /* for the flags in the GstPluginDep structure below */
 #include "gstplugin.h"

 /* for the pad cache */
 #include "gstpad.h"

 /* for GstElement */
 #include "gstelement.h"

 /* for GstToc */
 #include "gsttoc.h"

 G_BEGIN_DECLS

 /* used by gstparse.c and grammar.y */
 struct _GstParseContext {
   GList * missing_elements;
 };

 /* 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;
 };

 /* FIXME: could rename all priv_gst_* functions to __gst_* now */
 gboolean priv_gst_plugin_loading_have_whitelist (void);

 guint32  priv_gst_plugin_loading_get_whitelist_hash (void);

 gboolean priv_gst_plugin_desc_is_whitelisted (GstPluginDesc * desc,
                                               const gchar   * filename);

 gboolean _priv_plugin_deps_env_vars_changed (GstPlugin * plugin);
 gboolean _priv_plugin_deps_files_changed (GstPlugin * plugin);

 gboolean _priv_gst_in_valgrind (void);

 /* init functions called from gst_init(). */
 void  _priv_gst_quarks_initialize (void);
 void  _priv_gst_mini_object_initialize (void);
 void  _priv_gst_buffer_initialize (void);
 void  _priv_gst_buffer_list_initialize (void);
 void  _priv_gst_structure_initialize (void);
 void  _priv_gst_caps_initialize (void);
 void  _priv_gst_event_initialize (void);
 void  _priv_gst_format_initialize (void);
 void  _priv_gst_message_initialize (void);
 void  _priv_gst_memory_initialize (void);
 void  _priv_gst_meta_initialize (void);
 void  _priv_gst_plugin_initialize (void);
 void  _priv_gst_query_initialize (void);
 void  _priv_gst_sample_initialize (void);
 void  _priv_gst_tag_initialize (void);
 void  _priv_gst_value_initialize (void);
 void  _priv_gst_debug_init (void);
 void  _priv_gst_toc_initialize (void);

 /* TOC functions */
 /* These functions are used to parse TOC messages, events and queries */
 GstToc*        __gst_toc_from_structure (const GstStructure *toc);
 GstStructure*  __gst_toc_to_structure (const GstToc *toc);
 gboolean       __gst_toc_structure_get_updated (const GstStructure * toc);
 void           __gst_toc_structure_set_updated (GstStructure * toc, gboolean updated);
 gchar*         __gst_toc_structure_get_extend_uid (const GstStructure * toc);
 void           __gst_toc_structure_set_extend_uid (GstStructure * toc, const gchar * extend_uid);

 /* Private registry functions */
 gboolean _priv_gst_registry_remove_cache_plugins (GstRegistry *registry);
 void _priv_gst_registry_cleanup (void);
 gboolean _gst_plugin_loader_client_run (void);

 /* Used in GstBin for manual state handling */
 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)

 gboolean  priv_gst_structure_append_to_gstring (const GstStructure * structure,
                                                 GString            * s);
 /* registry cache backends */
 gboolean		priv_gst_registry_binary_read_cache	(GstRegistry * registry, const char *location);
 gboolean		priv_gst_registry_binary_write_cache	(GstRegistry * registry, GList * plugins, const char *location);

 void      __gst_element_factory_add_static_pad_template (GstElementFactory    * elementfactory,
                                                          GstStaticPadTemplate * templ);

 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 */
 gint priv_gst_date_time_compare (gconstpointer dt1, gconstpointer dt2);

 #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;

 /* 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;

 #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

 #endif


 G_END_DECLS
 #endif /* __GST_PRIVATE_H__ */
	/* 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., 59 Temple Place - Suite 330,
	* Boston, MA 02111-1307, 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"

	/* for the flags in the GstPluginDep structure below */
	#include "gstplugin.h"

	/* for the pad cache */
	#include "gstpad.h"

	/* for GstElement */
	#include "gstelement.h"

	/* for GstToc */
	#include "gsttoc.h"

	G_BEGIN_DECLS

	/* used by gstparse.c and grammar.y */
	struct _GstParseContext {
	GList * missing_elements;
	};

	/* 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;
	};

	/* FIXME: could rename all priv_gst_* functions to __gst_* now */
	gboolean priv_gst_plugin_loading_have_whitelist (void);

	guint32 priv_gst_plugin_loading_get_whitelist_hash (void);

	gboolean priv_gst_plugin_desc_is_whitelisted (GstPluginDesc * desc,
	const gchar * filename);

	gboolean _priv_plugin_deps_env_vars_changed (GstPlugin * plugin);
	gboolean _priv_plugin_deps_files_changed (GstPlugin * plugin);

	gboolean _priv_gst_in_valgrind (void);

	/* init functions called from gst_init(). */
	void _priv_gst_quarks_initialize (void);
	void _priv_gst_mini_object_initialize (void);
	void _priv_gst_buffer_initialize (void);
	void _priv_gst_buffer_list_initialize (void);
	void _priv_gst_structure_initialize (void);
	void _priv_gst_caps_initialize (void);
	void _priv_gst_event_initialize (void);
	void _priv_gst_format_initialize (void);
	void _priv_gst_message_initialize (void);
	void _priv_gst_memory_initialize (void);
	void _priv_gst_meta_initialize (void);
	void _priv_gst_plugin_initialize (void);
	void _priv_gst_query_initialize (void);
	void _priv_gst_sample_initialize (void);
	void _priv_gst_tag_initialize (void);
	void _priv_gst_value_initialize (void);
	void _priv_gst_debug_init (void);
	void _priv_gst_toc_initialize (void);

	/* TOC functions */
	/* These functions are used to parse TOC messages, events and queries */
	GstToc* __gst_toc_from_structure (const GstStructure *toc);
	GstStructure* __gst_toc_to_structure (const GstToc *toc);
	gboolean __gst_toc_structure_get_updated (const GstStructure * toc);
	void __gst_toc_structure_set_updated (GstStructure * toc, gboolean updated);
	gchar* __gst_toc_structure_get_extend_uid (const GstStructure * toc);
	void __gst_toc_structure_set_extend_uid (GstStructure * toc, const gchar * extend_uid);

	/* Private registry functions */
	gboolean _priv_gst_registry_remove_cache_plugins (GstRegistry *registry);
	void _priv_gst_registry_cleanup (void);
	gboolean _gst_plugin_loader_client_run (void);

	/* Used in GstBin for manual state handling */
	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)

	gboolean priv_gst_structure_append_to_gstring (const GstStructure * structure,
	GString * s);
	/* registry cache backends */
	gboolean priv_gst_registry_binary_read_cache (GstRegistry * registry, const char *location);
	gboolean priv_gst_registry_binary_write_cache (GstRegistry * registry, GList * plugins, const char *location);

	void __gst_element_factory_add_static_pad_template (GstElementFactory * elementfactory,
	GstStaticPadTemplate * templ);

	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 */
	gint priv_gst_date_time_compare (gconstpointer dt1, gconstpointer dt2);

	#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;

	/* 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;

	#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

	#endif


	G_END_DECLS
	#endif /* __GST_PRIVATE_H__ */