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Make the cache plugable

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Original commit message from CVS:
Make the cache plugable
This commit is contained in:
Wim Taymans 2002-11-29 18:13:29 +00:00
parent d8712f073b
commit 9c90317f9f
1 changed files with 54 additions and 10 deletions
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64
gst/gstcache.h
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@ -25,7 +25,7 @@
#include <gst/gstobject.h> #include <gst/gstobject.h>
#include <gst/gstformat.h> #include <gst/gstformat.h>
#include <gst/gstcaps.h> #include <gst/gstpluginfeature.h>
G_BEGIN_DECLS G_BEGIN_DECLS
@ -115,7 +115,10 @@ struct _GstCacheGroup {
gint peergroup; gint peergroup;
}; };
typedef gboolean (*GstCacheWriterResolver) (GstCache *cache, typedef gboolean (*GstCacheFilter) (GstCache *cache,
GstCacheEntry *entry);
typedef gboolean (*GstCacheResolver) (GstCache *cache,
GstObject *writer, GstObject *writer,
gint *writer_id, gint *writer_id,
gchar **writer_string, gchar **writer_string,
@ -127,8 +130,11 @@ struct _GstCache {
GstCacheGroup *curgroup; GstCacheGroup *curgroup;
gint maxgroup; gint maxgroup;
GstCacheWriterResolver resolver; GstCacheResolver resolver;
gpointer user_data; gpointer resolver_user_data;
GstCacheFilter filter;
gpointer filter_user_data;
GHashTable *writers; GHashTable *writers;
gint last_id; gint last_id;
@ -142,17 +148,11 @@ struct _GstCacheClass {
/* abstract methods */ /* abstract methods */
void (*add_entry) (GstCache *cache, GstCacheEntry *entry); void (*add_entry) (GstCache *cache, GstCacheEntry *entry);
void (*remove_entry) (GstCache *cache, GstCacheEntry *entry);
void (*modify_entry) (GstCache *cache, GstCacheEntry *oldentry,
GstCacheEntry *new_entry);
GstCacheEntry* (*get_entry) (GstCache *cache); GstCacheEntry* (*get_entry) (GstCache *cache);
/* signals */ /* signals */
void (*entry_added) (GstCache *cache, GstCacheEntry *entry); void (*entry_added) (GstCache *cache, GstCacheEntry *entry);
void (*entry_removed) (GstCache *cache, GstCacheEntry *entry);
void (*entry_modified) (GstCache *cache, GstCacheEntry *oldentry,
GstCacheEntry *new_entry);
}; };
GType gst_cache_get_type (void); GType gst_cache_get_type (void);
@ -166,6 +166,11 @@ void gst_cache_set_certainty (GstCache *cache,
GstCacheCertainty certainty); GstCacheCertainty certainty);
GstCacheCertainty gst_cache_get_certainty (GstCache *cache); GstCacheCertainty gst_cache_get_certainty (GstCache *cache);
void gst_cache_set_filter (GstCache *cache,
GstCacheFilter filter, gpointer user_data);
void gst_cache_set_resolver (GstCache *cache,
GstCacheResolver resolver, gpointer user_data);
gboolean gst_cache_get_writer_id (GstCache *cache, GstObject *writer, gint *id); gboolean gst_cache_get_writer_id (GstCache *cache, GstObject *writer, gint *id);
GstCacheEntry* gst_cache_add_format (GstCache *cache, gint id, GstFormat format); GstCacheEntry* gst_cache_add_format (GstCache *cache, gint id, GstFormat format);
@ -176,6 +181,45 @@ GstCacheEntry* gst_cache_add_object (GstCache *cache, gint id, gchar *key,
GstCacheEntry* gst_cache_add_id (GstCache *cache, gint id, GstCacheEntry* gst_cache_add_id (GstCache *cache, gint id,
gchar *description); gchar *description);
/*
* creating caches
*
*/
#define GST_TYPE_CACHE_FACTORY \
(gst_cache_factory_get_type())
#define GST_CACHE_FACTORY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CACHE_FACTORY,GstCacheFactory))
#define GST_CACHE_FACTORY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CACHE_FACTORY,GstCacheFactoryClass))
#define GST_IS_CACHE_FACTORY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CACHE_FACTORY))
#define GST_IS_CACHE_FACTORY_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CACHE_FACTORY))
typedef struct _GstCacheFactory GstCacheFactory;
typedef struct _GstCacheFactoryClass GstCacheFactoryClass;
struct _GstCacheFactory {
GstPluginFeature feature;
gchar *longdesc; /* long description of the cache (well, don't overdo it..) */
GType type; /* unique GType of the cache */
};
struct _GstCacheFactoryClass {
GstPluginFeatureClass parent;
};
GType gst_cache_factory_get_type (void);
GstCacheFactory* gst_cache_factory_new (const gchar *name,
const gchar *longdesc, GType type);
void gst_cache_factory_destroy (GstCacheFactory *factory);
GstCacheFactory* gst_cache_factory_find (const gchar *name);
GstCache* gst_cache_factory_create (GstCacheFactory *factory);
GstCache* gst_cache_factory_make (const gchar *name);
G_END_DECLS G_END_DECLS